Document a49LEabOaYe2yw6Zo40Oykbza

V PLAINTIFF'S EXHIBIT WV-03972 (j i sr o fit s tint to i--a.ftng T a --i F B ?. g 4 KlPE sr O. A. 4U.4S 4 JU S. HASH rcBJvm 23*01957 HABCH iWX 1957 m THE SUPREME COURT CXN<0fT ---yZ-..------- ---~ . CRaM HAMPEL. J. /sts-nrer WV-003972 I.. lUUkJt *xx Introduction Juwary ?4G *t * 1 BK&gSSltf ASSaTOS ttftn xagwg Financial Hifling Oserationa Hilling - ^nrl Sorting, Crushing A Dr/in* itec* Line and fibre 4spiration Fitr* Sections Laboratory Sotes-on Machines Symns Crushers Botary Driers Kaunas Crusher* Dans van Screens aspirating Hood* Johns Hanvllle Type Fltartsars Bsuar Separator 31 ending Hill Gracing Tro&sel Hist Collection :-Uot Plant bagging Machine Paid Iraanel Surface Installation* Housing mjus ,,, mu ULP HUB 9 10 - U UOUliP,,, KI P I B P s s-- Him 12 13 wm visit ?jyim,-tf8STOS Ore Reserves fibre Production lV IV IV 15 .*I*.. .*. r-V* v?' ' B.JL_B. P_B Y *1*1. A_5_B -_a H i H_ Mining Hilling Hatelnot 11**6 Bmav WUs Grading Bol t Pt*sting Haoftino ms jacuayg B I R 1 B s Mine Mining Wiling Oasts a. icushions Pitt. 15 15 151- ll_ 1166 17 17 17 17 1226 BJftttiiH Cgg BLUB ASBESTOS CO.^ 2 r<oj* iwws m . anwraw Parsonnol Oro Rosorvoa Mining Pi dang faction Killing Can cti a a a a 22 TtfTgsvrgy vlth Kr.Cornlsh-Bo*lsB 3?* Aibostoa Orsdiag S^dpaaBt List!tod. 2$ .Hal eon, Ciroeter of Cbnabar of Hinas Joba&Dosturj. 25 Kr.fcHordlfli, Solos aroctor, Africm A3dotd Minot 1.(4. 2$ masasra Bin OS Kill Writs Hill - Q**aiog Socttea Asbos Mill PonCrot Kill Tanorolro - Whit* Asbostaa ssu 1 2 2 5 mmfctYS Hood Fraso 4 Bln* Taceraire wn Boa* Kino <2roup ?roataaene plant Ponfrtt Plefclnt .Sootlon - Postrat ?maralro Surfoeo Installation C ' .-^?Cr^:>; *** ^ ;. V; I* < 1PTBQ PtfC.TlPfl Preliminary arrangecsrvta to vliU the operations ef Rhodesian Asbestos United at Tesaraire la the Masbaba district ef Southern fihodesla vnre aade through Hasart. Johns Manvtlie Lifted. Final details vara Jerked out teth Kr.jfabert Vinaon the Ganoral'Manager after arrival is ^#h*aaasbajrgr''' JT'tlT^nt' to Bulevaye vas arrangad on the carnal South African Airways United schedule and than a mall plana vas chartered trots Air Camara United at Kuaalo airport, Bulevajo. The distance to Hashaba Is approadnataly ao alias - about ig hours Hying Use. AeeesapdatXon vas arranged In a* &many's jpiest teste at Tearaire. Hr.Vlnmn arreeged visits to Peak nine owned and operated by R. Lenghurat; Bend nice la which Goliath Casect Coepany have an Interests Vanguard aad Boss ainas owned and oparated by the Schaidthaiay group. All travel!lag to these nines vas tone by oar. The StodesLaa visit vas tads &on *6.2.57 until 3.$. 57. HKUM ill the sloes vizitd vera protedog uhlte asbestos aad ti sain object vas to gat datclls of nlillag aachisary which sold be applied to blue asbestos aad to obsmrve list collection aysteat. loserairs ms tee largest proteear aeogst tea nines visited - this sloe Is at present producing 1100 teas per nentb. The others are comparatively snail producers. 1 %.; Generally, tha plants were veil laid out aad vail aaintalned. K sttosp* vm> made la any of the nines except * Teralre to instal any eajor test collection systos. CbhditU around *11 plants were getaarally acre testy than at tttteODom. j iSSRSTOS LIMttP.. fU E. Vinson V. archer g. McKenna G. Banal 0. Muiboll sad ... ... ... ... ... General Kaaag Atst.Gseral Manager Guilty Control flupt. Kill Shariatdmt KLae Forma Hashaba Is the centre of th% teite asbestos Biolag la this ares aad Is located about ZLO milea from Bolva*> and 4f miles fron Shabaal, Aero are seven mines producing asbestos of vhicto Taoaralre is the largest. Tbe setUasset of Taersire is about three miles from Kasbabs. It is laid out in too ssefiatt - one seotloa cdssl sting of about 25 teases cantrad around ths General met aad Mine CUb and the ether section stoat ball s mile avmy nsisting of S booses. the setool end hospital are In tela section. The settlement Is bite amongst tee hills. Veter is obtained from tores and each boose has Its ova sap tie system. Fever tor the whale area esses by line from Shabast. - -> <*x :v ***? There is* transformer station at Teeeraire - the power i * fed to the ein at 22) Power scat is lest than yd. par unit. rik lxcr st Rhodesian asbestos have Investad aearly 3*000 000 is 7eraire and to date results have not been too favourable, there have bee? three dunces in General Manager* since its inception - the present aanager, JL . tfins*w was jwtout fit Canada, fie said that they ere barely VeaJciag at press?*. He hoped to be able to reduce their overdraft quite aspredably within a fv month*. Hovever, it appears that the value of their production - only 1100 tone par rontfc at present - la a very poor reborn on tbe large capital outlay, the ore is very lev pifit and the anticipate* fibre produetics has not beeo achieved. They heve amt fibre everts out Croa Johns tUnvUl* to try and i^rov* she grade up to Ko.V, Vinson said that this was the only eeans be could see fir Increasing tbe wathly inosae. IgWM ffl.gUTfrfig Kinlag is earrled on at a depth of 50$ feet below tbe aurface. The method of alning Is blasthole stoplni. The btasttel as are $0 ft. in dieaster and ring drilling Is carried out at 6 ft. centres. The ore body is vertical and 190 ft. vide and crosscuts are Bade every 0 ft. Drilling is done on one shift only and ora treating s&G haulage on 3 shifts. Once the slusher drift and cone are cospirted vertical teles are drilled and the vhoie block is fired d?w into the cone and draw away by Joy Sullivan scrap era. These are 5 ft dm Use. The server tucket is binged - it Colds up on the backward pull and as *>oa as the fbrvard puli is applied it opens up and digs in. Tbe vertical holes are drill ad in three stages - 70 ft to ft. sad 50 ft. Belttaa air lag achine* are seed throughout. Steel feetags 0 btaiaed 1 % 900 ft. per etel. >-d. Devdlopnwt is tw years ahead of production aad at present only one nan is wrung on deveUpaect. The ore is very low grade averaging free 1 2fi fibre. ill haulage underground la <tone by Goodnan fieetrle lowsotives which pull 7x6 ten Granby ears. The bcttarlee are changed in the lows every eit hours. Tbe Granby cars tip into an ore pocket lined Uth 1* 2*ts. ore pocket i mnareted and tbe steel plateJ* belted on1 tWo tIoDlitvat saewt i.na concrete a*n*d* tbe heads_--a*- v* e--ld_e- l^ over. The plates have been lh politico ter tare# years end show very little aina of wear. There is no grisily or. the ore pocket. The ore is fed free the pocket on a heavy duty i^ron feeder Into * 6> x **6 Traylor Jaw Crusher set to 10*. The crasher is drlvm by & 350 H.P., actor throutf* 100 section vee ropes. The ore is discharged into soother ore pocket 110 ft. deep. The ore Is then fed Into & ten sttos In the shaft. There ere two doors on eech chute se) e guillotine type air oeerated door end (b) a butterfly door which control* the discharge into the skip* shaft is three coepartasat oar - two for ore haulage end one for am and materials. Stout 90 skips per shift are pulled. The alhe Is vary vet end weter is lying everywhere. It is drained along the ado drive* Into 4 sludge pood, Bare the sludge settles sod it is then pupped to toe airface by 4 W" sludge pusp end es to veste. The dees water vara** to arc tow suss from Wtenoe it is pushed to toe surface by a 3* pusp. A e* end. a ** pomp ere kt os stendby amts. Jh ore all Beilis end tor*, type pu&ps sod are seld to give very little trouble. Tiring Is den at toe end of day toltt tot a 1st of blasting is earned out during the shift. Thsre toes not sa to be any set rule ateut setting off boobs* os toey ere call# any spill age froo the loading touted Is deeded up one e fortnight. Xt appears to fell into another pocacet end special buckets are used for this fob. Ore is al brought to Twerairs from Shanalanine ato six alias away. This is a slightly richer ora tody. The seining aethod Is mailer to taserslre tot the ore is touted t the surface end duaped into a bin. Then It is brought round to the Twersire toll by Tractor ttailw*. They puu about 3> tons each. Tbe are production is 90,000 tons per sssth trea Tasaraire nine end 66,000 tons mi dbmala. . ^ Mining wsts are lJ/~ per_ton ore al&ed. * ; The Siropeea underground earn from tl& - 1^9 sterlinf per aonth. The native alters asm V per veto end can aaka up to f per veto bonus d ending on production, Zn addition very native is civ free tousing, he is fed end clothed free end gets tree medical end dental attention. There is e foil* equipped native hospital near the native settleseat. lUnklXILft The sdll is toused la a three storied tollding. Xh have a Slais* i*t Installation and while this operates reamnably effleimtly there is still a lot of dust ereuad th plant snd if the wind Is blowing troa the vest it is very diffioilt to see la to# pleat. Tbe How sheet it a very oaaplicited o&e - the plant being divided into four ama sections U) Sorting. Crushing end Drying SecUoae <2) BnckUneead fibre Itoira^a Sactio. C3) A. 4 B. fibre Sections end (V) Wort fibre Seottoa. *-'w Practically til sorting is Oorvj by native win, The ore fron the sines is fee into trie plant on separate belts. they have about S-20 pickers a each belt. fiynons Bar Vibrating pitriles ere used for separating coarse and fines. Crushing is tens la H ft- Standard Byoeoas and * ft. Shorthand crudters. They get Itfng Uf*"tr0rthdf* tSo^liaeri end sen ties. the crushers have been in operation for over three years and none has been changed yet. Rasasag crusher ' are used on floe ore. the ore ie dried .n to rotary driers ten eeal fired su\d directly driven three* a reduction gear by $Q E.P. mcors. they revolve at about 10 r.y.e.. and are inclined et appre&aot ly *. the <bt is exhausted Iron the driers bo cyclone#, the fine dust is discharged to ataosphere. the heavy satarli falls into aa drioefc and then on to a asaveyor which discharges to tailings. 3cr ecus are used la prefer ones to troanela. They are a rotex "type unit ealled a Dav*n seres). the fibre is aspirated through suction hoods to eycloaes. Bias Kaaaar Kills and lohas Kaanile type abeneara are used for flbarisiog. Bauer separators are used for cleaning the fibre. 4 large volost of air is used for iteration R*fcO e.f.e.t on each screen. ptKM SgfTTft*S, fibre. HsreBauor srearators are used for cleaning graded 4'tiUBbcrjoae grading ffomd Is used for tderating the fibre in lengtba. 4 large sdslsg sill la asad for blending fibre*. the bagging aacfcinaa art the screv type. the bags osed are of a fairly heavy hessian 2S* z la mixe and are ell hand sew. Ko bead reasing of bags vas sect. l45PR4?aR?J. this 1st very vail ecpipped section. they have aachlne for every taaowa teat. The laboratory la under the control of the quality Control ofdear and wet of the sort ii done by natives. They are having a lot of trouble vitb their fibre < their grades art too low. 4 lot of research Is being fooe with a nav to Uftldg tre fibre to Grade V. The sals production at present is 5 - o 7. -5- The plant is canned by t*o Europeans per shift lui sixty five natives. Ons White and thirty dfftt natives for Grushin* and Sort! eg. One Whits and twenty seven natives for sdlUng. tailings are taken avt? *by * series oi convenors to a high dump. The tailings are distributed by boon stackers '-hieh are saved at regular intervals. ill nwe*>rs are covered. Fibre is carried away by lorries to Shabani railhead - M aiie away by an indpdt contractor. It is railed fros Shabani to Lourenco Marques in Fortusmse East africa. Freight easts tfos nine to coast are 2.5.0., per ton. the is a big bold up la shipping became of the slngla track line to the coast. Storage facilities are said to be very gsed on the coast. The contractor brings all inward Crei^it back to Kashaba. Hilling sat* are about 11 - 13 stg/per ton fibre. SftTES QS MaCHIfigL SMSS fiflfflSM. Tbeae crushers were doing an excell st fob but there was practically no wear on the fowl liners or nanties. There was no vibration and the springs hardly worked all. The feed and discharge chutes are completely boxed in. lost is collected*by a 6m pipe with a fishtail suction on aac side of the feed bowl and a similar pipe on the discharge conveyor. Ffeur crushers are Installed - tw standard and two shorthead but only on# of each type was being used. fOUM ggfig, These appeared to Vs locally made salts* coel fed through automatic stokers. They were They were direct drlvca threutf* a redaction g**r to a gear end pinion. They were retorted to operate mast satisfactorily and <So not give any trouble. The shell* were aede from 5/8 plate and were lined with mangaseee wear plates. We could ret obtain tee liner thickness. The wear on the liners is negligible. The drums are V g& cUamatar and a* - ta-ft. long. The tu driers operate In parall A. The dust collection systms Is only fair around the driers. ^ BiOIV.n fflBffiiM. t* There were tw of tbeae machines in the crushing section - bote d?4 sice. They asp ear to be e very (pod crushing unit but tea veer on the beaters and lsgact plates 1 high for white asbestos. They change the beaters once per week. The beater change take 3-V hours. Thera are Ax beaters to each machine and tears are Hz bolts to each beat#. It Is said teat a new shoa has bean developed tn , . .. v.-> . vv- . fit the beater and this awes beater changing aueft faster, the losact plates an be adjusted but wear on tsese plates also is high. One advantageous point is the easy access to the inside of the aachino. There are tvo qurtSTTeTease fear* uhi eh give mediate aceess to the dealers. the beater start is 6" in disaster and la aounted on heavy beartags. This site oschine is driven by a 75 R.P., sotor. The operating start like this unit but point out that they are not using it as a fiberlsar but as a crofter in place of sherthead syaens crusher, Froa observation It aeeastsluit ,iftile.the Hasosag crushea finer than a shortnead Symna could 6a, the caount of Balntwance required on the Haswag would be such greater. They are big units and occupy a considerable asoaat of space. These are sledlar to the ones used fay Johns KaadUe in Hill Ho.5 at sbestos in Canada. They ssaear to run veil eechanlcaliy but there is a large tendwey tor the feed to ran to one sUe of the screen. In feet, only one screen in the plant, and ttere are thirty of then, vis feeding centrally. Constant adjestowt is necessary. This Is feae by snail handleel a fitted on 1* dimeter rods. Rubber balls are used in cospartaeots*under the seal Their bouncing action keeps the oeah fairly elms. fust hoods cover the entire screen sad they are hinged about 1/3 of the way down the length. This allow* a section of the teed to be swung bade tor aalntwanee and Inspection. The entire back of the screen is totally enclo $ed. . The feed mters os a plate at the rear and is distributed in a rotary notion. On the majority of the screens, there vas no aspiration tor dust. The hood opaared to act as a settling device. The mods are Bade of 1/16* piato and all are fltto with rubber Haps. The ispression gained was-that the screens are rather cuabaraoBe and asst inconsistaat in th*r oasiattotu Thasa teods are or a totally distent desip fro* those in use at Ulttcoooa. They are 4 ft. long and spread bp to 6* at the Hdsst then taper to 6" wide tor a height of 7 6*. They theo join into a 10* pipe. 4 batteray vslvs is Incorporated ih the hood and this adjusts the air velocity. So naans of raising or lowering the hood could be mb. A large volume of air is used for aspiration 7500 o.f.sw tor rock screws and 6500 e.f.m. tor fibre ser This is alasst tvies aoucb as is used at VittoaooB. This is a very rugged unit afcoat 4 ft. high^. 6 la. in dlanater. Its action is Hollar to a to It has tour zovs of horissatal rins - 4 faestars addition there are 12 horirental ares protrudinR/K *ides. These ere staggered as as to dew - * ' *' H f1r**'=W-r , -7- v%ar plates are ail eorrugated. the feed r.Cers at the tee through t*> efcutes on to a elate attache: to the s^n viaft. It discharges t the botton tnrougb tvo slots 15* i $*. l\ Is drivui by n 100 H.F., wtor at 550 r.s.r* Th# 0Q beaters did not anear to be excessive. Bflffl S&ftirtTPfi, This Is a eery efficient grix*TME4tin*. **&#. It is quite possible that It tould operate satisfactorily a blue fibre. the aaehine is cede in tee sixes - *2* and 72" diameters. the feed mitt a the heed et one side and falls on t a perfbrated plate. air is draws dp through the plate at 6500 c.f.n. to an 16" duet. The fibre is asol rated throoft this duce and the grit rnffts behind. Jhe ccewnric artier of the perforated plate ranves t&e grit to a discharge chute. She grit discharge vas eiamlaed and fband to osfitaj any etidr* of unopened fibre. It is tfcoutfit that this say be a definite disadvantage on blue fibre vhich is heavier aed ore bulky than Wilt*. The sacks of oaopaaed. fibre wuld not lift and wuld be disparged sdth the gHt. ttovever, 1. this grj t discharged var# returned far further tirajtaiet as loss of fibre should occur. < the machine is driven by a 3 E.P., so ter. 1 working dravlng of this unit vas obtained. BtgaffiSS..hTLL. This is a massive u&tt - \z ft. in dlaaetar by 5 f long. It has a screv feed and screv discbarge hath operating through t&e trusHoas. These screva are both adjustable that the length of Use in t&e sill can be vaA It is chain dfivn by a ja B.F., aotor. Tbe trunnions are narrev being only 6* vide. This aachin* Is tt In use repiiarly end is used Cor special batches of fibre. CRAMKC TSDKM&. This appear*! to be a very efficient Xkl% cnabcrsom machine. Its shaft has a ttmr step eta vhich xu&a on a roll' and has tu> glide grease rollers. there Is a constant heaping action and it certainly keeps t&e actam heihes clean, and produces vail graded fibre. fit# shaft is icodm and is 6s In dlaaetar. the dossal Is 3> ft. long; 5 Tt. la disaster and can be fitted vlth up to twrm diffarnt site shea. The nnstruetioa is quite heavy. 1 variety of ehates carry t&e products to screv conveyors. The troa&al is driven by * J I.P., notor direct coupled to a 3.0.3 redacfioB gear end than chain and spreci drive. This drive is being c&enged to a see belt salt. The bearings are fairly liit and despite t&e ooaunaal busplag there is vary little vibration. The caver It a box type vitt oenlete panel inn action doors. kst li attmtsd by 6s pipes At* tali connection* to t&e square beads. They da act atfty eay details at this aohi&e Asa but suggested that if farther mng details are reag they could be obtained from the CBSpsny*s Bead Office ttuM 'v t t i% ;,y<; * ik&t nr. cm Uiuiftii. j ?.CTTn>| ** mentioned accve, this system so? eared to b effleiat, Die plant was housed in a buiding id* i to* . tuo stories hitf*. The dust was drawn Into sock* v*uch varo aacosaucally cut off at regular intervals siloing the heavy material to discharge into screw conveyors and out to tailings* The air passing through the socks was exhausted to atasehere. Ho visible discharge trots the exhausts was aaiiced. The fan exhaust* wer 6 ft. in blaster.*1- ecfc-*f-tBT^hf1?e,'r3Hs drawing dust toon the plant vat driven, by a 3 tt.?. ytp.tor, pitot rimi v-- * *t * aail pilot plant capable of treating one ton of ore par hour la install edOn a section of the ail. it coafl Ji of severe! conveyors, an *?1 Haseoag crusher, 4 assail flberisio* unit, a troosal, a screen* "and a ntery aspirator. This plant is in constant use testing all varle&es of ora. ^KXfflLK^Ulfc. '* - "* these are a screw type oechine and operate idtbout m? trouble. The white fibre peeks quite solidly and feeds la tte bag easily. The natives stop the aaeblae while changing bags. A drawing of this a*chin# was obtained.* pj&a.s TRamsu this tread was used far cleaning and grading fibre. It vis a circular unit - V ft, in dlaisetar and 8 ft. long. paddles were attached to a central shaft and rotated la the direction *s We Creasel Out * sillily higher speed. It Speared to bo quite an efficient unit Car separating long and art fibres. The drive ves by a reduction unit and then a v belt drive. It was totally enclosed, dust being drawn off tb< eittl cl rcular hood. A drawing of this unit was obtained. A large terksho? and garage attend to all atjor repairs and salstAsnea. Very little equips*t la aaaufeatured on the fttc - cost of it is tude In Johannesburg or BHaways. gmsias. Tbs European teases ere ell very osafhrtable - they are of brick obstruction and fitted with steel fraed utndovs. Native servants cu be obtained >r 2.15.0., pa Booth. fta. Houses are applied ^th water, wood ad electricity The ratal Is 2.0.0., per week. S '^rrrrrr'rTjrsz . . ., .. ,, .. . y -a* -7- e S.A.K. h. r 3, g,. Hr. k, Lon^urst Hr. C. KUpimcK Ur. /an fcer Veld* - Qmer-.Sanager General Fbrasan Accountant . _ JM* was visited on 23.2.57. It Is e saall am* sporozloately 150 oiles froa Heshaba situated on the edge of a l axgo ntjv# reserve. It produces *iy 60 tans shite asbestos per sooth d treats I* ore. Uo tnmeetion of the under{round vsrfclag vss made but the lateur fbrce in the nine vas 1 ferapaan end 150 aU?it *11 trucking and loading vas 45n by hand. The ore vas brought froa the tunnel and tipped lata a bin. The turnel is driven strains into the hill etout 100 feat above the valley floor. aims. This vas quite a sisle process. The ore vas ted into a Kubit ;tLil running at high speed (actual speed act kaowe tut froa a rough calculation of pulley sizes, toe Bill vas doing nearly goo r.p.o.) The Kuhlt sill discharged oo to a a>ftvey*r vhieft deliver si into a asall Tel salto cone crusher. Fran the Tel seal to toe ore vent to a bias Baser Hill which discharged on to screens. The fibre vas aspirated to a central cyclone. The oversize sad undersize trom the screens vas tlberlsed again, screened and fibre aspirated. This process was then repeated tvdee sore. toe tailing* looked to be quite dean. Cleaning and grading vas done in round trosasels with peddles inside revolving i& toe sane direction as toe Cronsel but about three tloes the trosoel speed. toe paddle* voi curved at the end and vere Bade like forks - five prongs to each paddle. The tooamels torkad quite efficiently, Ibur grades a i fibre vere Bade -4-5-6 and 7 and It appeared to be v<ry dean. One European and $0 natives run toe dll. aiatenance is done by native labour. 411 Longhurst sells all his fibre to Jftedeala& asbestos Halted at Teaseraira. h:id -10- m i -i g The uoUeto Caaeftt C>, h*v* n interval is tnis nine. . aircft - Manager * t ^rrr..i^ --. This sine la situated stout 100 sclles frwa hashabe la wild muntry, it is in toe throes o*f a change ver period. The ain* looks to be 4 very priaitie# operation. Tb tunnel is drive) into toe hillside atout 70 feet etove toe veil* CLoor. It la only 5 ft. t1* It. wide. Mr.Blpeft said toet toe aloe voia poor shape. Ho developseat be* beao tone at all and toe Bill cutout la pvarned by tot oeount of ore brought fros toe Blot. The ora is said to be stout H, Jfee production of Hera la 100 to&s per tenth. The nine la also very vet. mans Tii olll is a very rodera and eoaeaet unit. it has not been operating very Ions. It vas designed andctmtract*2 by too Barbeton Iron a Steel 'Cowaay and they have used all their ovtr types of raehines. The toll produces 100 tons of fibre per bo nth in four grades. The Bill is a feUFsfsge mill each atage Bakins its particular grade. There ware several Bachlnetfeere vhleh vere of lete2 (1> this is very such like a Kubit Hill only on a auto smaller scale. The Maters vdt only 16 lb. They appear to do a very satisfactory lob on unite asbestos. beaters muld be changed quickly asd very easy see* was obtained to the interior of the unit. the toole top half of the saehi&e vas hinged and vito toe undoing of too vtag outs it could be svung back. It vas drives at 1000-12X3 ra.a.. by a 15-$ R.F. botor. Their cost is stout 2^0 stg. (2) Tromels. These vere a very totraaet halt. The vbele emit conn 1tea of too CtcbbIj Is parallel aspletely eacased 1a a topper end aver. They dlacharged os to a shaking feeder which fed the ore in a steady atreaa over a rotary aspirator. The fines froa the trowel toppers vas taken sway by a shaker feeder on to a belev ground level conveyor. (S S&^iX-.kJb.7rtt ^miK,,JXUX^ 4 *"?? ** >* units vere seen around toe outside of tbe Bill toilding. they have been discarded in favour of the Bias aiU. the toristy 4 forrls type have not been successful here. The fibre produced vas of excellent quality and toe errclient quality vas else assented upon ey^oe Joans Hannil paple. One feature of toe Billing vas that toe ere vas vett* before treatment. They do not like to Bill toe ore unless It antains at least 10* 1 store. If tbe ran of sine ore does rot contain a sufficient eaount of aoistore sprays are turned ss The reason given far this is that toe fibre is Inclined to be brittle and It requires vetting so tost erathing end hasscr _ , silling will cot injure the fibre or reduce the length. *** is the 5babend *ettod of Billing and sany adillag plants in - u Ktedesia foliov V\ls ;* tsa.trair* oersnlt on *** oui< hand insist wot tfe re oust u dried vti tfcey iv* tn opusroa percentage t>i' ooi stare *t 4*. The tell vas oer*t*j laiy *y native* un'.ar tea* toys and rir.airch. * - kA , . *** ' '.r v*. > fu *AA* v... a c i a h j fhlc nine a nvr.*J .,r.; 'uni?.*!*. *.;/ v*e ahs ?<'it*si<rtsc was in ntroi a. o aratlsrts. This sunt Is si Liate aboil oO "41 as fro Danube atout 2 tt,lUs froa -eUfigwe. *, _i< --.i .1 , Ita present capacity is boo tons cr aanth but they *i to increase to iioo Tors per moth as soon as possible. /ho nine ws inspected on 3i, 2.57 Into la R* efteraao It was too lata to *> unetrground and no IniereaUon was obtained on the caning os orations. It is a war? veil laid out uni and tho *#ttle*ent is attractive? placed wng the hills. House* iri all of trick construction and wary osaibrtae? ftmlansd. A *>od club takas c&reo/aU entartainswe. m The sili was vary wail laid out and contained ansa ear ns3*cft aschinary, Kennedy Van Sun law and gyratory crushers were used 1 the crushing sections. --. --- the ora was dried in a toggles Cole type dn at a tesc eraturn of bOC3. The drier section vss wholly automatic <* it vss o?al fired and easabls of treating bo j.* hour. Tfci drier seal was asst effective. It was fitted with tvision Borings throughout the dreunferenea and an aim fit seal wss maintained at all tines. Tha ring gaar on the drier was flttad with eKp'anjlon bands which avoids? any distortion due to excess heat. This unit was built by Furnace Construction Gpspsty of Johannesburg. Hmsiii crushers were used early in the slUlng einau size -PJ. They vere regarded very wall and oon sidared to be ar efficient unit. . _ ............ . Sias Hamer KL11* vara used in the Atarising sect They used feplex trasael# and rotary aspirators for fibre separation. Oaa noticeable feature of the Billing was the maker of troaaols la via. Or.Fritzs!grist said that the auabtr tcrfced out at one treaaal par ton of feed per hour. This again is the Shakanl ailling principle but strangely enoutfi Vaaeiard peple <fc> rt aprea with the wetting idea. They agree that 9 is the optima percentage. The fibre was of gsod *ality but appeared to be very ouch opened. This*** apparent in the three grades produced. -5 '".'.`V'.,' n ? TV- Z-Q s H!Q Ait lc ar*> tner mine vntc *r.c <rntroll* ay the *(*stdtheny group. Hr. L. Is the jeterai Manager but h 1* under tae control of Ur. fritssi grist. Boss Hine is scout io sil-i irorf Kasbafea in hilly country, gi;rc Ho visit was made underground but it is understood that mining is carried on by scoping. The ere is hand traa&ed out to bins, MfLLTHS The sill was under salatenanes which gave aft excellent opportunity to inspect the interiors of many of tie machines. The alii Is elect!y the sue at Wngjaret slut ezeq>t that different unite are used In the erushlsg sections. It entains a Krupp Jaw Crusher - a easelve uni t vfeich fee* incessant trouble with pi toan bearings. Kenttoa was aade of the Vittemoa Sractice of using a small percents go of copper In the white oetaL. M$ has proved very successful la Oslntlng crackle* ift Use bearings. A Tel sol th ne crusher and e 1* 8* Traylor Tt crusher cornel et# the crushing section, yastnag crushers, Bias Haraer Kills and duplex trommels are used throughout the treatment section. They used Jtubit Kills at one time hit discarded thea as cost unsuitable units. They ase the principle of ode troscacl pc ton"oT'leed per nour. Their production is 383 tons per month but as at Vaa$iar the fibre appear* to be vary opened. Johns KanvUle people say this it a re&aaP practice with the Schmldth**? pc^le. The housing settlement was asall hit veil laid out. There appeared to be e large native population here. The mill wes under the control of one white aim es foreman. Power to ail nines sectioned was suppilad by the Shabeai powerboat -1 fc. *-*>* T I: A f r. T v H '<.........I T i I T prsltrlnary v ran tenants for 44t to Central *sbstos tM,, were made vt tft *.r. n, 6, jtewtrt In lenten. >inai aAils vtre ocnoletea with his. v*4 :r,i']Hs*n in Johennescurg. Par*lesion to visit Cane soestos Goapsny'i aine et Koega* n$ grunted by sr.Girmsh vwdei in Johann *sburg but at the las* ainute tnis ves cancelled, I^steaj a /!:.it to the Company** operaUans at Fertfret wsa arrAn^eu. rht eninclded wife an inspection visit to this aronerty by Cowan** s Con*ul"6tng aBCn(wiT'a,*'W*Pi" Mr.Corniab iowdae XnS&faC that a very feed picture of Ms Goasany* minin* and clUJr.g operations wald be gained by a visit to Po*:rt He said that their sethods vere standaro at ail blue essestos tin.3 ano adiea to this, Jr.Kea? wuld gladly give any Ififorrnatloa aakaq tor. k. TTUe to*> ves visited on Vth and 5th March,1957. a plane v*i chartered by Central Asbestos Waited froa Cosuerdal Air ierdces Limited. The jjc silt trip* free Johannesburg occupied 2 teur* Z> minutes. Kurusan la one of the oldest towas in south Africa. It was iounuec by teffat, one of the early pioneers and Qr.Llslafsto&e use Aurunan at a bate for a>at of his expeditions. It is a well established town but is 45 eiles froa the nearest railhead, U'ater is plentiful. I*ere is a natural spring called the Vuruaan Sye" which av* at the rate of 1,000,000 gallons per day. this is irrigated through the tow and serves as water ftsr garden*. The town is tee base for the 09credent of The Criepisland fiiploration finance Co., vhieh is the subsidiary company of Cents Asbestos plaited. This cos?any operates &up bIbu wnieh are &0 apes so art The Oertersi Manager and Senior StalfalX live in Kuruman and ooerstions at the four mlr.es are controlled from there. The staff Is as folio vsj- A. 0. Todd . OusiBltt 0. harvilla 8. Gibson 0. Wilsoa 0. Pascoe f. fccell Oerteral Manager Underground Manager Underground Manager Asb* Chief Sagmeer Accountant geologist perssnnel Manager ARE JERVIS The ere does cut occur in seams as the ore at Vittenoen does, but isuuifcfi&* which are generally very rich. Continual ;respecting is b4ng dona and any likely areas are bel&g drilled. he drilling is dene by "jumper drill* and water and if fibre is found it appear* as a sludge. The netted is said to indicate 00 C tee occurrence of fibre but gives no indication of the vein# of th ere penetrated. This type of drilling is said to be very close salting* as a few good sa&vles of fibre put into a bole could falsify the stele drilling remit. the estimated ore reserves at each mine ware given as follows* firedby Asbes White Bock Rinas ...................1................................ 4v2o5o,,0o0o0o ton*s * ..................................<....... e5u0f*k00d0en**fMr _2_2 yean at * production rate of 660 tons fibre p.ant > 'V, *A't -15- The above u^ures at# known reserves. These ilurs are borne out by Sinclair in an article in "si.*stes" oa^asinc, He reports Chat ooutft Africa reserves *j era ci oolite are au:';iaut only Sot 2D years. The total production from Che fb-r nines ia-1350 tens aer aonth. Todd says that this figure ii'tet iiltefy`'f*,e esceeSed. &* ? h t s e This nine is atout *<0 alias south of Kururnsn. Zt produces 390 tons per tenth. This property was not visited. 1,a *, ,,, H.S a,5 This property is atout 1? ailes fires Kurusan. Zt Is only a sell pocket of ore end produces Z50 tons of fibre per sonth.. ' There are only nz diropoan* on this site but suite a larc* native population. WHTWfi There are tsc shafts at this nine both town 2D0 ft. Only single eoamercnent shafts. all hoisting of san and ore is done i buckets. hoists are driven by natives. The sine is very wet and dirty. The aInin* practice is cut jnd fill and they advance on a 330 ft. race. The seaa is said to be a ft. wdde and avert tea 6* fibre but in rose sections is as ftltfi as 2D* as nlned. they disregard all fractions unde* * when estimating assays. The cuts are taken out at 6 ft. height*. The ground Is poor snu there is a preat deal of timber used. The ore as brokee Is sorcod by satires and the waste is used as fill. terklng es*es are ermsped and In most faces inspected there vs only about V ft. between the face sad the fill. The netted is most wasteful because a gaod proportion of the fibre pea back Into the fill area. The a&rtaa ore is borrowed to chutes which delivers it to one ton cars. Ventilation la quite pod - they have two fans operating. Hainan alrlega are used for drilling. The ore Is hoisted to the surface and dusped tor drying. Generally one Baft is used for hauling ere and the other is used to telst water. Ho attospt la Bade to pus? the water out. HTTil.m the or# from the sine Is dumped and mundried. 1 large tea of natives sort the big ore from the pile. J this is put on one side and Is crushed on afternoon shirt. any vary Ion* fibre is hand cubbed sad bagged. The finer material Is fed on to a pioklog belt and waste Is sorted out by atout 35 wonen. The fibre bearing re pea to a te V^-i * *Xavvt***V*I** 46- This is alieo vito uloc/ qr# cpjei o s:trr_*o jr.i ft. The sun new *:.% is attaches. fh flov j* very si.nMc. Tnt on :i crvsned is fai seitn gyratory crushers in three stages. aaen eruafter olscrarges airfcUv into a Meaner Mill *nu than to a tronael. The oven a# fro the trotssel sasses to the next crusher, the under si re pea to tailings. There ere three crushing end tronsalUng sieges. _The oversise and undersite fra the |rd treeseU-gpes to. - The fibre is Iraa inald# the trowel*. ^Re aspirating hoed is fitted eMoutfi the osuth of the trowel end the fibre is drvwD into a cvclon* v*nch discrerges threugp an airlock oft to the :loor. The fibre | th earroved to the cleaning section. Th tall 1"a* fro* t>e<isht are hip and fro* observation veuid appear to te %? than ?i.f Kill reoovary it cetveen 60 - 65*. The cleaning section consists of a vs era Hlii}\Aleh oo*a tr.e fibre. this diacftarges direct to eyeXVne."" Tne cyclone discharges tftroue* an airlock to a trowel. done grit la rasoveo throup toe trowel and this goes to waste. The fibre passes froo the trowel to a cleaning belt. This belt eUsiaetea acre grit, but toe ntre end ary other eatenal which ere not aspirated r> bee to the t>brs Ull tor further fiberising. The fibre is aspirated ifoe the cleaning celt to * cyclone and discharged through an alrlo to a deducting saehlne. This tochine aiiadnatas a pod percentage of Pat. fibre is then delivered to a bagging labia. fibre i tagged py hand rasning but tertv type bagging aachlnes are ready to instsilation. ---------- ------ ----_ the flute la eeeuttsully clean end contains leas than rock grit duet. ......... fbr* is no attenpt c/ae to collect or eliminate Pst. In arc around the plant the dust was so bad tr.*t it vas cost ulfiloai t to see. ,.e3tty& ,3B - ;'->.S vtLtSi Three types are used - the Bias Kill, Christy dr iorri s tve (codified) and the Cobra hill. They are ret too bap: atout t>. first two types and ant replacing th with the Cobra Hi) The Cobra HUl appeals to be a nost effective oachlna. 3 looks very cue* like a filcrardar>n 3 d fan. The feed it introduced through one side at the centre. the rotor In toe each* it a tlx bladed unit with wedge shared beaters on the end. It eovea at 1*00 - 1700 r.p.a. The feed it discharged upwards at a angle fra* - vertical into a cyclone. The oachine stand* about 3 ft. high and la 8* - 10* wide. The sides and ends are Un with zsanganese steed. The rotor is cade of specially heat treated steel and Is carried on a W shaft and very heavy duty bearings. The only cast seeti'n of the naehine is the base. the remainder Is fabricated. It will take up to If t.p.b., and requires *0 B.f to drive it. It can be used either as a crusher g? a fiberlser and is said to be capable of crushing - 2# Storm. On toe ere being treated, the beaters lasted up to 2* boy One of toe oain advantages appeared to be the fact that t aaterill ** ellevated direct fro* the machine without the use of ether ujilt. CLE1HI30 BSLXt This Is a sseehloe develooed by todd at Karunsa. It tonusta of a fast anag endless belt stout 12 feet __.... t .tout 310 ft. sr mimx*. It is totoUT ' ---`.tl-'S iS.*.*'***' ' Z*s"? *. . . * 9 mi > -->*_. -> <to'i ..nsSSfiw ;*:re 13 i+i to tr.t s;.- * teller retaining - i'isU ,,ix>ut iix :t >!**i* t*. l; 1 orevstn.' vev**. i'M? '% 2 isrii wv lr 1^1 *. ;*r, wyn n', it. cn*'n t? -n sn*/4 w*.j It -..>ars to 'r*a.' t*.* -t .r er?** the b*n, Is a*v>ru `.-.it is v. wireunc bool -nisn rv tort of tne itore. It then -asses turn Mai uilay *4t*r* there is aspirator, **! grit vtd an Uteri jd stick* rail ^ u i toB*<?6f whir* rmm then to the .. .... bi> eevic* cartiinly as;tar* to dr.o;:tffie gyii-ouJ^.- It maid be an easy machine to dan struct If only tooroa.rata n*sra.isnt* wara obtained sut mart era not any Intricate arts. *Z:TX?:f ,^t'it Tnii aehlae works oft tot ortnetole oft floor Mrttr, ;t is an ti- shspeA screen micft has revolving paddle in it. It it ievi ju* z>; sems to v# th flora along ue scram. there is no screen on tfta too *f the *V* scram - only a oust svar. It droos the tfj stoutf and five* 0 icoi rsro*J3t. It is also a stoole schist. It has a quick release secftmias nn tne scram aesh$ for eeae to eftantins tftca. Ih xme* sopeer* to # hale in position %dth leather salts and suckles. 4 ^oer.ina ilk* this could aaslly fee built a tft* si tv. nati res. Three shite sen run the plant together vt tft 60-70 %. k K I : U.Ci. .m gl this is a osoar Atiaely snail pocJcet of ore esttsated to esataia only to,000 tons. There is ns ill on this site. * The re is hoisted up a shaft, cussed into ears and ties a into a concrete erea for sundrying. It is tneo snovelled into ton true** ana cartea to the trte* area for tiling. Ills fairly rich ore and there is sae sorting tone by natives on the ouap. hi.KiJLJ____ u, *.s This area is about 25 Biles fro* Suruaaft end la the sal: sinine and aUUa* area. St produces fiOO-W tons of flare per aontn. Thar lsa wftlto 9tU<BRt at fitries containing 22 four and flee roosted houses. they ep*er#<a to be cplt oaforta* There is a single sees parsers. there is ala a active Battle*** vith aeajsuwdation for 1500 natives and a section with aeeosEodatloft for koo coloureds (half eastes etc.)* Water is obtained froa tores but it is not very plentiful. trnas. the nine is a U5 incline shaft vhita ges fom to 250 fet. there are tvo levels - ae 70 ft. below the other. ther are two haulage tracks and hoisting is done by a vloc* talcfe takes up three one ton cars at a tlae. The alne is rids and is reaesaablr dry. the eysteo f slnlng It cut and iiU - siailar to Asbea sine tat the ground 1 very bed. t ..V.-/-. *r - a .1 .4 ' * i:v:y? -fi le IS CwistftU 1 .* i - cJdJsad. Very heavy u*brior la necessary to keep the becks up. The seaa ey u mining ij >2 Test and very neh. The fibre ranges in laogth fro* 4* *6~-35** ' eortlog is tone underground isd the waste uaed ter rill. This Is sot vastest *s all the filled areas laa^eeted stewed a large percentage of fibre. The cuts are six feet hito and 1b several pi sees they are up to the Vth cut and intend to sake six cuts in all. The ere is wheeled in barrows to routes and QppW tow to the sale loading pockets. ___ Ventilation Is rood, The re appeared to be eery such staller to the ore hear the ellff face at Ctflenlal torge. fithouto Todd stressed the point that alnlng repilation* were eery strict, they did not appear to be so. ill tors la done in shotts and r belaets were seal1 able for the visit underground. the ground is sinking rapidly froa the surface and several areas were pointed out eh are the ground had subsided 5-6 feet. Todd said that toe excessive use of Uafter is the aloe gave hia trouble with ailllog. There mi far too mica wed m the fibre. He introduced a special wed rawting section to counteract this. MILLIES The ere is aia&ried sad then Aapel into concrete bins. There are tour of these and they bold % tons each. Sobs rortlng of ana notarial Is carried out by via and chlldrw on the alas dfrmp. The alii flowsheet is very staple and toUovs the ganeral touth African practice of reamslag the fibre as bob ss it is D-' fTOa the ore. Everyone stressed this point of rsaotlng the early. They avoid using any aschlne which produces Aist or b dust into the a hra. * The flowsheet is shown In figure f The ere Is fed to a Perron Jaw crusher which crushes tow to 2*. this psssas on to a fete* 3 deck screen containing 1* - 4* and 1/16" aesh decks. The - 1/16* aatarial is discarded to waste. The -* fraction *e* to a separate treatment section* Tfc pi* aatarial goes to s Telssdth gyratory erutber set to p*. The ore break* in *arge flakes end in the gyratory crasher the fibre is easily freed from the rock, the gyratory crusher discharges o& to aaothev fetex three deck screen - toe l/le* end i* fraction# again being sroarsted out - the -1/16* to watte and the -* to the special section. The oversi se material drops on to a sorting belt ubtfe natives resnv# as such fibre aa possible. This cvrosli# la in closes droiit with tbs crusher. The fibre rewvered by the native is dropped on to toe floor and barrowed direft to toe cleaning section. The ! 4" fraettoa is discharged on to a bdt tolefe delivers the or to an elevator. It the point of delivery to toe elevator there is aa airlift which rsnores loose fibre. The elevator discharges the ere into another Tetsttto erosher set as fit as possible. This erosher discharge* on to another totax screw and toe -i* and -1/16* fractions are $v*rated out and treated as formerly. lbs varsine from toe screw is delivered to a Qebrs Kill ron&lBf at 1700 r.p.a. Tbs Cbbra mil throve the fibre as into a cyclone which discharges throeto *a airlock Into a troiEsal. The tromael is fitted ^th 1/16* aesh. The uadarsis* pea to vast* The everslse delivers to a shaking screen whare anotlon is mlimi to rve the fibre. The matsnel passing toe rocker gpes beds ti toe i stator sad into toe crusher. The dire lift* froa toe b*' is also aspirated into the oyclon* end toe fibre froa bare is discharged on to toe floor and barroved to the treatasnt section* v* The -i* flracttoa# are delivered to c bin. Sere the ore is fed torouto a troaael toto * aeto. The nadorfise *)%* to * * ..U- * -*9- which blows the fltre and rock into a cyclone. This cyclon* tosehAfges through airlock Into a croarei attad with l/U **sb- The undareise goes to tailing* and the overim ^at to a PjJ F Avail? generator. The elaan fibre iron Uat separator is dTsenargad n~V the floor and sect to the classing jkUcb. Tba rack end Oust *3 to waste. The orerslse fro* th first troa*el > to a tabra Hill ohm to a crciene and thm to a troasal. This trevcTlias twa rashes ftttad. Thaunderai** Area Oils fine otffi pu to taillsi*, tha uoderslsa ftoa toe coarea aesb pasbeck to the Cobra Mill for Asttnr ,ft.barito& u4 tta discharge fro a tha trosaal taicb it acini y fibre pat on to the floor and Is Barroved to toe cleaning saction. Tba telling ara wary high aod wuld probably assay up to 6*. - Tha clashing and grading taction Xs'Sfite cos?*** ** 1 din dad into three lines each treating f*oa 1-2 tent fibre par hour. They ara tat up to traat venous grades tat at toe Uoa of tba Intoaction t&ay war a all treating one trada. Tba fltra fad into tha aleenl&g sactien la rarjr gritty and it band fad to a screw feeder. This paa to a tafere MU2 running fa rrarsa, This blows tba fibre to a cyelo&a talcb then disebargextzooup a airlock to a transit. tba -1/16* nasb fines ara discardad. th trass* discharges to a grit sparator tba gnt retaraing to tb Cobra Hi 11. Tba libra la aspirated to a cyclone aad th* to \ afrffrpMas aadttne. Sbo Haas fto tala aacfalne ara discard*!. Thefiore than pat to a double aorav bagging natalae. Tba natalsa discharge ia as oval sbape and tba S&* x M** bag fits maflortebly over tba spout vhlta Is about 18* long. tba operator holds tba bag vita a tvlatad bait aad allows It to sup off as it ia filial. Tha bag holds 100 lbs. comfortably tot tba fibre appears to bekaoJAnd. * lot of hng ts generate by tha nachlaa. There is a ganareas abearance between tba scrv and tba oval tors? - at least 1*. Tba bags ara band swn and stacked. Tba bags cost X/9d. eatch. Hilling is under tba control of a torasaa. Tha toil oparatas on two 10 boar shifts. Four boars ac& day fros noon to b p.a. is tak* op with taalntananea. Thar ara at laast Co natives on each shift. Magnets are sat up ia tba cleaning sactloa to ranora e staal or iron. Tba beaters in tba Basftto Mills last firen 15-2^ hoars There fees net appaar to be wary such vacr in tba cyclones. Seta cyclone baa loogthiding! ribs dawn eato ton* about 2* - 3s wide. Tba ribs ara lined with beery veer plates (old beaters). This stops excess!re wear on toe cones. Tha test Coll acting systea is auto toe sane as tba ana balnc installed at Vlttaosen. Ul taa tasty areas ara aaelosa totb galrani sad iron toons end are sealed. Thera ara i&*eeU toors fitted. The dust ia atoausted by a large fan and this passes into a .. .type flctoeio&a. Tba rotoclone bes ant bean ; operation yet because of a atestage of water. They hare tan rotoclone totteut water - the tast fron tba etomst fepears es a ary ana base. fbdd stressed that ell doors asst ba kept dosed Bar pod eptratlsb. lfce {etril ntao sphere tronsd toe pliat was $il ta grad. tba or# is rich and would be elect SDf fibre totarmg tta plant. . ./ .* Tha recovery is poor and is Jo the order .1 (> - 65*. Hieing costs tf stout 15 par ton. -Hilling ooats Tory from fiib - ill p-efHea. -- Freight is about 6 per tea, * The fibre it earted to Bis railhead **0 ails a svsy by the road bus Oilto takas out atout 10 tens aach trip la s trail. aim nPM .grSCUSSIQBS %dtfc Kr.Stawt and Kr.Todd. Central srs ratter wriled about thslr rising costs. Vhen told of toe trend at Wtta*oo* they remarked that 1c ibo time thay would bo Mftter_S&aa this figits. They coaid rut m soy posaibiilty'ef reducing their costs. Hochaul settee 1 not possible Is any of tteir alms and Bill recovery eaa e&ly be l?roved by the addition of pleat, filer are both rmtbsr been oa dispensing with the vsrio* (redes of fibre. at present they sake a, S sad. as sort 8.0.X, (rad* (run of sine gr*de>. Uhls last sued Is the (rad# prochieed at WltterooB. Both > thought that this sin ale CTade wold be acceptable to customers everywhere. They essessed the aaaual protection of hUe fibre t between 65.000 70.000 tons per annum. This was allowing Ulttenooa 2.000 tons. tbay do cot anti* ate that thay *11 iucrease their protection at all. They intimated that presae era reserves vers sufficient for 2 years at the protection rat of 13D& teat per month. They firmly believe that a price increase will operate In ts years. E .. ,,fi A g,,S . a LSI...... A s a s s.i o s area. This is tha other blue asbestos mine la tee Xurumaa to visit vas mads to this mine but from te&veruttens Karumsa sad in Johannesburg the fiUoLa< information vas galnac the mine is fiasaced by the Sefcaiduster croup the pot op the major part of the capital. It is msnaced by duo amstrong brothers. their ere reserves are not large and exist in pockets similar to toe area: already described. The mariaum anticipate output It reported to be 10(000 tens per cocoa. This figiraims not yet been attain* but almost the total protection Is absorbed by the Schmidthelhy smblae. demordifif to fr.Keep, Cbasalttag tofiaecr tor Ceps at Asbestos limited, his Company is not very Sappy about toe gnrumah Capo Blue Company. They all ego tost coafiisloB has arisan bscmitecf too similarity of names and that tha gurusam people ere trading on his Company* name and r^ntatioa. This vas to# geeeral opl&iaa in Earnmaa alms. These latter shorts v*e gleaned from uenvsrsmtteaa and no facts wore obtained to substa&tlate toss* -a p a a us i This area was visited on tft and 7th Harsh. The nut was eade in the company of Cr.teep* Gonsultlag Engineer to Caps asbestos toapany. Id* journey was nade in tftalr Gotoany4* &* aircraft and the 370 tola trip eeoipled 2 tours alnutes, Poafret is only a Bill aettlcneflt alsoat oft tft Bechutnalehd border. It 1* mnnaotasi by rgadr3n~7ryfrifg - -the nearast railhead. they have tel cptons nBouaieation with all the rest of the Onion. Veter is a proUas. They draw their vatc fine tores sort of which have a vary mail output. QgfttoHWg. General Manager - Min Superintendent Chief Engineer - Major jl a. lakernan. l. Jacobs*. V. Jacitli. there was no Ondmgyeand Manager - tte Bine was in charge of a fores* C. de Longen. They are mining a mall area at present a quldc calculation from the sine plana stove* the tonnage to be in the vicinity of W$0.000 tons. this is practically a nev area did bar only be* opened up for eight maths. there Is bo sore ore knot tot prospecting la being tone in the country adjacent. This aev area is about 29 fellas Oroa the old Pesfret sinew VEffESQ This Is tone by pillar and stop* aattoft. There Is an inclined shaft **5 which 9 as down to a depth of I60 feet. The *untry is quite good. Hlalng is tone en the fibre teas and this is folioved along toe atours with the result that the drlT> undulate freqiantly ud the healage probias Is 91!te difficult* The stop as are 22 ft. high and pillars are * 15 ft. Intervals - the pillars being 8* x 6`. The grade of ore is atot 19< fibre. The face is tired In three teetio&s. After each firing the ere ie cleared by hand stoveUUg and barrows. In parts of toe nine toe grade is toto aa low as of. ill toiattag is to&e by snail electric hoists. It la rather a ooepliceted tel sting ayeten bseause there la a snail boll at the Cope of each dip in toe drive sad there la aseft antootoag and hooking up of truefcs. fir.Keep was questioned on the economy of sndh netted* sad his *ly was that the nine w* not big et&UKb to alao under the fibre and neks level drives. They preferred the preetot idea van though it appeared rather ludicrous and vastefol. XT.Keep took over the position as Coneating feglaaer abo six moths ag and toe devised and controls all mining netted*, the tone la very elm and fairly dry. St la neatly laid out and is wary tidy. There is every appearance of *>d rdar. The ora Is drawn to toe surface by a large boiet four ' truck* at tine, averaging stout 1 ton aaeh. The ora 1* do*. The ore is duped Into a bio tott s bar slatlr ea toe top* * Seeing is fl*. There are about 9 native* making on toe ton*. ey asrt out toe large pieces of ere toloh *U act pass throng toe grisily and hand feed thee to *&*& Jaw Crusher* *' % . .. ,v 2a- SlQCi.Hfi ->gCTIfiB The ore (roe the Mine Sin is led by aa Apron feelar to a vibrating screen having a * aesh on it. The fines are dlscasrgai os to a belt ana this takes the Asm aver to 4 where they are sondrled. They are feeding a sail tonnageof finer back to the sals plant as they becose sufficiently dry. It 1* their Intention to lostal a drier as soon as pes&hle. the oversize *# to loatfineUadd Txnrn*>rVttr*~ primary picking is earrlvd out. The are to natives cleking vaste. The waste rook is thro into <rtn* which discharge* to a belt directly below the picking belt. This runs parallel with the picking belt and discharges Into a wests rock bin alongside the ore bla. Ib* vast* ok it takes ever */ stall trucks which discharge over a stop. The ore is dusped fro* the bln to 6 ton lorries and is transported 2s oils* to the tail HIM.m This is a vary staple process. the sdll Isa fairly large building but the eajonty of this is taken up by tbe picking section*. They run only tto shifts per day - one 10 boos' shift and one 9 hour shift - 5 hours are takas up by aalataoaaca. Crushing is done on 2 shifts. Their production ala 1* too tons per math and they hope to naintaia this ft pare. The sill Clow sheet is atom. i description Is as (Ollovai- *The ore is fed on to a picking belt where west# is plcke This Is thrown into piles by the aide of the belt and wheeled away in barrows. Tbe pfckei ore passes into a Telaaith Jaw Crusher set 2 - 2j* and then pti b a 2 deck Xeanedy Screen with 1" and f* sashes. tbi - firnotion mea to the final screen befefce the MUX Surge Bin. Tbe W" fraction gpes to a picking belt shout to feet long. Fro* tbe fleet section of the belt waste ie picked and thrown Into Uns. From the second section long fibre is Sicked and Is thrown into chute* to barrows. This long fibre a tafcm away to a torung dvu? to be sorted into various lengths by atout 150 an, mean and children. These are spec grades. Tbe pideed ore parses Into a 2 ft. Symna Crusher. the *|* <4* fraction pee to a picking belt there aose waste reek is rsewed. The belt discharges to chute and ore loins toe discharge free toe dymaa crasher. She Sjeeua ia set to }. The three products. -3* Ones firoa toe first screen, to picked ere *>* -1", and tha discharge free the dyBons eruanrt ell ere fed on to another Xaoacdy vibrating ecrem. This 1# fitted with a V32* stab. The overuse fei to the MU1 9t2 Sin and toe undersice pea to waste. . - -zy The or* in the fturge Bln appeared to be emit* deep . wetier th*> Wlttenooo feed. The ere vas twi Co the Kill in X\c line* each teJciae stout 10 t.p.h. The ore passes into a Christy ft Sorrts Hamer Kill %hi- discharged lota on elevator. This elevated the ore to * trend The UoaotX was fitted with 1/lb- spsh. the-^odfrelav wen to vasts. The everslae wee discharge* to a'CanaSTa type scrtsQ fitted vlth t*j geeks Vl6* eesh end y>2" sssh. The -V32* fraction vent to vast#. fibre was aspirated free the top deck only to e central cyclone. The TJHBsriise and over alee ttoa the tvs lines then joined totether td fed into another Christy * Sorrls Hamer Kill which discharged late a tretnel fitted &t& 1/16* sesh. The undersize vent to vsste. The overside vas fed on to e Csoecttan single deck screen fitted vttt VI6- aesh. There vas aspiration of toth undersite and overalls. The underelse end oversite cessed to s vibrating screen after aspiration, fills screen vas fitted uftff j/32* nssh. Sere there vas again aspiration of the undertlx* end overage, after which all the ore vent to vasts. the tellings were rich end ould appear to assay W - 5 The fibre vas all aspirated to one central eydone shi discharged through rotary valve to a single scrW bagging aschi Ho snoot vas Bade to dean the fibre and it vas very dirty. Jacobsvi sold the fibre assayed 6,8* stone and dust but a c BjrrodUous look at sosie analysts reports gave figars* os hi as 15* and each report contained the ittte - *71bre too Aisty". The -2D0 aesh figire averaged 35*. There vas nt such stteept made to control or diftinste dust. ft large fest fan, fitted vtth a ^*0 B.P., m aspirated dust fros several points into a sock stout 12* in disaster and 10' 6* long. The discharge fna this nock vas barroved outside. 2 While the Bill vas rueniBg it vas cost difficult to s* anyvhere In the plant. They are not rtfjssjjatisfied vlth the Christy ft Sorrts Earner Kills and fiver ore practically Install ed. TTchhheeanMWcinaagtteeorrvsseiirfdttttffocc Ctthhoeebraaa Knnissllttsyy ff-tt oSHnoael rrvisas type last only ^ niwitss- but they ehong* tte bsatars la 7 alnutes. Ths Canadian sore* is very such slsdlar to the Daavsn screen at Seeortire tut it Is very cuabersoae end unddd They fe not like this wilt. ill trends ore circular. They get good veer fro the cycleses - the cones are fitted vlth ribs. The bags of fibre are bandsaws and stackad by bond. The fibre Is traosported fros the sine by railway bases. The sill is run by 2 teropeaas end 12 natives per shi There are bo - fiQ natives per shift la tfccpififing section end stout 150 natives in the long fibre sorting area. The *111 feeder units are fitted vlth Srvis* dock.* which lseae a 3* tour chart of all Bill running hours and stoop ages. X1U recovery vis only >*. 'J*.* )v *. .. zi. , w; 4t- . . ** **#** at *i5temoa 4,, ttiftln* and Billing at* vU had of thos* at Po*?r*t. Thtfe btc afcnut a9 house* in the setUcawt end there * only 100 &*%** in to* ut, there ere o'**? yio n*uv There in Mine Quo ehieft is Hcoued and tft<g_owunlty Ilf* cantoa# around thl*. Th* dub n e tenant *a5urt;~bomf P end stdosing pool. The water .free to* pool li used to voter the fcoUUftt gr*. feat of th* #Quipant In the Club hes been supplied by the Comany on an ineantiv* aches# dspeidlx on the production rate. They ere at present trying to obtain a billiard tatie the target tor title* is 590 to&a of fibre p oath tor sis eoaseafive Booths. ill vegetables are la t club grounds bp bydropfeales and this aethod appears to be a^st successful. Each Saturday the produce** divided along toe as faalXles - the aaount for each fasdly decoding on toe aaabsr 0; adults and children. They have a football ground and toair temls, hauling and tooth*!! tea*s osapete as far svay as Mafating - 170 alias. ill houses have ssotle systeas. The Quest Souse is cart to the Manager's feus* asd can ahaoflfi&det* fiv* people. Th* mirzouadlAg country is BtUy iov rag*s and Is rather harw On rotaml&g to Johahaesburg as Interview was obtain* vith Mr^torpi to -towdan, the Managing Praetor of to# Capo isbst Company, Be advised that they were tullding a new treatment plant at raw*a but this vsuid not be ready tor 12 sontbs. When questioned abut their fibre #iaUty he said that he sav se reason to dean It any sore than at present tut admitted that several oscplaints hsd been received. Be also said that cleaning e^iipnant sould be installed at Prusha. Ha favoured the one grade of fibre rather than several different ones. He vas Interested is toe vet proeess at tattmoea and said that tbef varo using vstar at fsage to separate long am sita Croa toe rock. fad appeared to be tbr tain ferry. They eaarot seet their ccSBltoent* this year aod Janas Bardie ere one firu which has beet drastically reduced. They are spending 793,000 at Benge vithia the next two years. Ibis is under flr.Seap's control. They are e^arisooting vith Hasaoag crusher* and fine tbeacost sueeaestol on a&sslte. Be would not give any opiaioi on their pertoraanee on b*oa fibre tot sdd they vsold prefer as to use then; is enquiry vas sade regarding toe tour 1 ft. Mens crush*?# fev In cr*t*s et Pang* but he said he tould tenteet Hr.Broedburst lat*r on this natter. Zt appeared that they ver* undecided whether these units would be aid la th* future iajeu' et fenge and Pfleke. Se aald that relation* batweea his toapany and Centra: Asbestos vare met mf eardial than previously. Se intinated that h* and fir.Seep would be silting Australia late tola year and void like to visit tattpo. w * .. ,* 25* ISTffiViaj Vlth Hr.Bourne m3 Hf.S,a.iato rtnwa grinaai this tlrv have Banufaetured rest of the epulpaent used Is the blue iibeacoj industry in douto <*Crtea. fhay are only saall lrs but they appear to have encroached each proves is the correct Benner and have trl ed to adapt their machines to suit e*eh type of ere. ^ They manufacture thi Gbra HU1,* Alpha CluUfil 5alt. Rotary Valves, Cyclones nd ft,U.FA.,Air CUssiflers. * 2=r * 40 outline of the process *t Vlttceom vu given end they suggested various point* at vftich their aaehi&es could bo used, the unit iAich appealed asst vas the Cobra Kill. Having *ex these BtehlBe* ia action at Xoru&an It mob* likely that they wuid parlor* guise satisfactorily. the wear on tho beater* Is a problea and It appear* that they u>uid last appmtt&etaiy Ip they vara asked to sufcait all the ioSamtlaB they bad or to# various aachines to Wlttenooa clvise pfiees and possible delivery. Xe vat also suggested that they sell tho plans of th ssc&ines ae tost they eottd be aanufsetured locally. b_Hr.ymean,-. Pjrector.ofthe ghsttbar &f Hines. A discussion was bald vltb Kr.Fuicaa lust prior to leaving Johannes&irg tor Australia. Ha bad visited Australia lx 1951 for tb Fifth Bn&ire Minis( Congress, His estimate of production of Uut fibre Id uto Africa w* *5,000 - 90,000 toss. B als> confirmed that ora rasarvaa appear*5 to ba sufficient tar only 3} pears at presest rata of production. Be lava soaa very interesting details of toe gold, uranion and diaao&d production for tha currant year. tha value of these three miserai a vas anticipated to baser# thaa 550*000,000 stg. He offered to provide any information on the Blueral Industries la South Africa should it be desired at any future dab* tymms/ vfth wv P. Mediae - Sales Breatormf African Heel atad Mines. this Coapany bad refused peraisslon br a visit te their asbestos sines at Shaba&l but a courtesy call vas node te their offlees is Bulavayo. Hr. Bupore the MaBagB* Sir actor vas absan oa leave in Capdeuo and Mr.Herding vas In charge. She Intarnav vaa tost unsatisfactory and Kr^ardiac appeared te ba reluctant to dlscuas any of that* activities and vas pleased toes the interel ev vas over. Be said that at aoee tutora date it ae be convenient for sonaone from Australia to visit their also. i.. *** +, . - . * v /r* .vjc i+ a ... ....... ;< n 'umi #! 1^.1 'SJ?.'.