Document V0DygE07Zjva4x6V9MNDwQqq

FILE NAME: Concrete (CONC) DATE: 1945 Jan DOC#: CONC015 DOCUMENT DESCRIPTION: Journal Article - Permanente is Now World1 Largest Cement Plant R O C K PRODUCTS JA N U A R Y, 1945----- VOL. 48, No. I WHICH WAY TO FASTEN PREFORMED WIRE ROPE? T he cross-section view s show w hat hap p e n s to w ire ro p e. Jn F ig . 3. L a u g h l in 's *'Fist-G rip" S afety Clip holds th e rope with hardly any distortion (note hem p cen ters). In F ig . 2. h em p cen ter u n d e r U shows how rope is squeezed and flattened by U -b o lt's sm a lle r b e a rin g a re a a n d " F i n g er-P in ch ". B oth were tightened to sam e tension by torque-indicating w rench. H ere's Why "F ist-G rip " Clips Work B etter L aughlm Safety Clips have identical saddles, flat sides; hold rope firmly w ithout crushing. Saddles fit snugly against "liv e " and " d ead " ends. Few er clips deliver full rope power. T h e only clips w ith d ro p -forged b olts. T e s t th em , for y o u r ro p e 's sake. D istributed through mill, m ine and oil field su pply houses. W rite for catalog. D ept. 4, T h e T h o m as L a u g h lin Co., P o rtla n d 6, M aine. |AUGHIIH # f * ' THE MOST COMPLETE UNE OF DROP FORGED WIRE ROPE AND CHAIN FITTINGS Preporednes* for Preservotian Bror Nordberg Washington News Rocky's Notes News About the Industry and People Hints and Helps New Machinery Review V. nbi O j,-. H-% -- IP Trucks Supersede Locomotives lS! The Bessemer Limestone and Cement Co. shortens (juarry hauls Bror Nordberg 78 Meet Fluctuating Demands Profitably Metropolitan Sand and Grarei Corporation reprocesses "waste" into asphalt sand 80 Outlook for Post War Business Bror Nordberg 83 Business Conditions 83 Modernization 167 Specifications 176 New Markets 180 4 i La bor 182 Specific Gravity-Key to Scientific Concrete First of a series of articles which will outline precision control methods of concrete manufacture R. E. Robb 184 Refroctory Linings for Rotary Cement Kilns Part 1 : Operating troubles and suggested solutions W. F. Rochow 188 Designing Portland Cement Clinker C. J. Knickerbocker 194 Phosphate Production Problems Article 111 deals with the economics of flotation ami hydro-separation for the recover-, of fines Otto H. Wustrack 196 Financial Survey of Cement Industry Nathan C. Rockwood 198 Growing Demand for Lime in Chile R. Zorriiia and S. Baranovsky 200 Air-Entraining Portland Cement in Concrete Block H. &. Farmer 209 Large Reinforced Concrete Units M. W, Loving 212 Selling Smooth-Faced Units through Dealers H. E. Swanson 214 Small Plant Builds Lip Reserves for Future 216 Rock Products is published monthly by Trsdepress Publishing ComorMi.on. 309 "West Jackson B ird., Chicsgo 6, Illinois: Horae T. H unter. President: John R Thompson, Vice-President and General Manager; J L. Frasier, Secretary. Copyrighted 1944. Entered as second-class m atter, Jan. 86, 1936, at the Chicago, 111-, post office under the act of March 3, 1879. SUBSCRIPTION INFORMATION Subscription Price: United States and Possessions, Mexico, Cuba, Canada, $ 2 .0 0 ; and $4.00 foreign countries Tw enty-file cents for single copies. Indered in the Industrial Arts Index. Canadian Subscriptions and remittances may be sent in Canadian funds to ROCK PRODUCTS, P. O. Boa 100, Terminal "A ," Toronto, Canada. To Subscribers---Data on wrapper indicates issue with which your subscription expires. In writing to hare address changed, gire old as well as new address. Charles Hoeier, Jr,, Manager 1. V. R odda, Circulation M anager; C. P. T eats, Field Representative; C, M, H ancock, Production M anager; M. M. Myers, Art Director F. J. Richter, Director oi Research DISTRICT ADVERTISING OFFICES; EASTERN AREA-- E H. St. Jules, Manager, 522 Fifth A re.. Herr York 18. TeL Murray Hill 2-7888. CENTRAL AREA-- T. O. Steadman, Manager. 648 H anna Bldg.. Clereland 16. Teh Main 4362. MIDWESTERN AREA-- J. J. O'Neill, Man ager, 80 9 W, Jackson Bird., Chicago 6. Tel Harrison 7890. WESTERN AREA-- L C. Thaon. Manager. 309 Vf. Jackson Bird., Chicago 6. Teh Harrison 7890. PACIFIC AREA---Duncan Scott & Oo.. Milla Bldg., San Francisco 4. T e l Sutter 3395. In Los Angeles 33, 408 Pershing Souare Bldg. T el Mich igan 0921. LONDON, ENGLAND-- Geo. J. Jessup. Manager. 57 Goldsmith A re., Action, W. 3. ROCK PRO D U CTS, J a n u a ry , 194S Ill nologist for Uie American Cyanamid or. Co. During the Fiist World War he originated a process for the manu facture of nitrates artificially. At the close of the war he was occupied with the production of cyanidp from cyanamid. si- F rederick H R ichardson, lie u te n - o a.nt-eolonel U. S. Army retired, and il- district engineer of the Portland Ce vi- ment Association in Sait Lake City si- Utah, passed away recently at the o age of 61. Colonel Richardson was Tf the representative of the Association at Spokane Wash, for several years before being transferred to Salt Lake /he City. His professional career included ye- railroad and highway engineering lt In the First World War he was a ve captain of engineers m the army il serving in France in 1918 and 1919. vaj In the present war. as major in the jo reserve corps of engineers, he was ordered into service in November 1940. and stationed at Ft. Douglas nei Utah: Ft Dix New Jersey: the engi Jo. neers supply school at Columbus m- Ohio, and before retirement in 1943. m he was commanding officer at the on army service forces supply depot at on- Richmond. Va. A. F. S w a in former superintendent fc of the grinding department of the rio: Colorado Portland Cement Co.. Port sh. land. Colo died recently in San bn Diego of injuries suffered two months hac ago when be was struck by a street wa: car. He was 75 years old. Mr. Swain ins had been with the cement company . it for 41 years before his retirement in e: 1940. Born in Indiana, he came to Colorado in 1899 settling in Florence let where he lived until his death. He had been visiting in San Diego for ers about a year. rm : offif G e o r g e V o g el manufacturer of ear; concrete block. Milwaukee, Wis.. died hac' recently at the age of 48. For years ori Mr. Vogel, with his brother Adam nes: was in the concrete block business. His brother died about a year ago. resi- J. B. McLean for many years in CO terested in the development of a talc IV wine in Sedro-Woolley. Wash., passed n d away recently in Seattle. Wash., after an illness of about four months. *w list H oward G a y . secretary and cost a department manager of Macwhyte ;tri Co- Kenosha Wis., and a leader in frof cost accounting system died recently ciet after a n e x t e n d e d il l n e s s . H e wa-s 51 >rllt years of age iff is; gypsum Post-War Plans ;hig? National G y psu m C o . Buffalo. N. dnft has announced that its reserves a? set up for post-war improvements sod and expansion have been stepped up ietS ' rm $4.000 000 to $7 000 000. Presi- teflj ent Melvin H. Baker said that the ----------- ------------ N f c W b ------------------------ company will spend about $3.000.000 for plant improvements and approxi mately $4.000.000 for new plants He did not anticipate any substantial increases in prices Permanent Cuts Cement Prices C e m e n t p r o d u c e r s in Northern California were tossed into the mid dle of a price cutting problem with the announcement of Henry J. Kaiser, head of Permanent Cement Co., that effective December 6. the company would reduce the base mill price by 20c per barrel for Northern California and Western Nevada. In making this 12 percent reduction Mr. Kaiser emphasized his belief that it would help to counteract "the pres ent Inflationary trend' in the cost of home building. The new price will be $1.45 a barrel as compared with $1.65. It is believed that the other northern California producers will meet the new price cut. A new element of competition was introduced as the $1.45 mill price will make the Northern California price level from 30 to 35c a barrel below that calculated for Southern California, following a 20-cent a bar rel upward price adjustment per mitted by OPA in September. Pric ing methods between Northern and Southern California producers are not the same, the north using an f.o.b. mill price quotation which adds freight to destination and the south functions under a zone system which produces quotations at destination. Southern California's comparable price would be around $1.70 to $1.75 a barrel. Buys Lime Concern T h e N a t io n a l G y p s u m Co. has made arrangements for the purchase of the Kimbalton Lime Co., Shawsville. Va. In addition to high-calcium lime produced at the Kerns. Va.. plant, the company also has been marketing lime mortar. Officers of the lime company are W. T. Doosing, president; and S. C. Snead, secretarytreasurer. Producing Agstone T h o m p s o n R o c k C r u s h i n g Co. has been in active operation during the past year supplying agricultural limestone to farmers in Wyandotte County, Kansas. The mine near Ar gentine, Kansas, was taken over by Milton W. Feld and associates of Feld Chevrolet Co.. Kansas City. Kans. Sell Company T h e H u n k e r S a n d & S t o n e Co., formerly operated by J. E. Hays and Mr. R. Welty at New Stantan. Penn., has been reported sold to The Ellwood Stone Co. EUwood City Penn. f i n m p s n r m r T c t ----- ft i t January Cover T ypical of some of the massive dam structures built by the federal eov'ernment is T.V.A s Hiwa-ssee Dam illustrated on the front cover of this issue of R ock P roducts. This con- Hiwossee Dom from the downstreom side tokes the spotlight on RO CK PRO D UCTS Jo n u cry cover crete dam is 307 ft. high and 1287 ft. long, and is located on the Hiwassee river in western North Carolina. In the post-war era. it is expected that many similar dams will be built. One of the big projects under con sideration is the Missouri Valley Au thority which will involve a program of construction which wall rival that of the Tennessee Valley Authority. Change Owners W. G. F e r n e r . formerly president of the Somerset Limestone Co., Inc., advises that he has sold his interest in the company to J. S. Picking. Jr., secretary-treasurer of the company. Future operations will be continued under the same company name. Opens Lime Plant N o r t h w e s t L im e C o .. Enterprise Ore., has been purchased by R. S. Painter, formerly with the United States Gypsum Co. The plant is now being reconditioned for operation. Continue Business M. T. Epling Sand & gravel Co.. Gallipolis. Ohio, is continuing in business under the management of the widow of the late M. T. Epling Move Office L ib e r t y L im e s t o n e C o rpo r a tio n has announced the removal of its general offices from Rocky Point. Va.. to Buchanan, Va. New Jersey Passes Silicosis Law Ne w J e r s e y has passed a law cov ering employe compensation for disability or death resulting from silicosis or asbestosis, which became effective January 1, 1945. As the New Jersey law may serve as the pattern for legislation in other states, the provisions of the law supplementing chapter 15 of Title 34 of the Revised Statutes are given below: 1. E m p lo y e r a n d em p lo y ee m a y e le c t to accept or n o t to accept th e provisions of th is act. Such election in respect to th e provisions of th is act m ay be m ade in like m anner as provided in sections 34:15-7 to 34:15-11 of th e R evised S ta t utes m respect to accidents. W hen em ployer and em ployee h ave accepted the provisions of th is a ct every such em ployee who, in th e reg u lar course of his em ploym ent, suffers to tal disability or death as th e resu lt of silicosis or asbestosis, as h e re in a fte r defined, sh a ll be en title d to w o r k m e n 's c o m p e n s a tio n , as h erein after provided in th is act. 2. D e fin itio n s : ( a ; " S ilic o sis" m e a n s a disease of th e lungs, due to b reath in g air c o n ta in in g silico n dioxide (SiCh) d u st, characterized anatom ically by general ized fibrotic changes in th e lungs, w ith a developm ent of m iliary nodulation, dem onstrable by X -ray exam ination or by autopsy, resulting from any process or iC . .......................... plavO Vibrating Screen ^ ^ Plat-O - r rmance your tougbes' ^ ^ a t - e p e ia fions. * ete * a ,, ,, .a grading wifi give compiete fine 5 cH (N E c o l t r i DE,STEfo bu "D/*n "V W D / M M i r T C 1 0 4 t, o c c u p a tio n in v o lv in g t h e i n h a l a t i o n ot silicon dioxide iSiCh) d u st. lb ) "A sb esto sis" m e a n s a d isease of the lungs, due to b reath in g air containing asbestos dust, characterized, anatom i c a lly b y g e n e ra liz e d f ib ro tic c h a n g e s in th e lu n g s, d e m o n s tra b le by X -ra y exarnin a tio n o r by a u to p sy , re s u ltin g fro m an process or occu p atio n involving the ia. halation of asbestos dust. (c) T h e w o rd " d is a b ility " m e a n s the s t a te o f a n e m p lo y e e 's b e in g a c tu a lly jn_ cap acitated , becau se of silicosis or asbes tosis, fro m p e rfo rm in g h is w o rk in the last occupation in w hich he was injuri ously exposed to th e h a z a rd s of su c h dis ease T h e w o rd " d is a b le m e n t" m e a n s the event of being so in cap acitated 3. W here a n em ployee su ffers from silic o s is or a s b e s to s is a s d e fin e d i n sec tio n tw o of th i s a c t, a n d is th e re b y totally disabled, a s d isa b ility Is h e re in de. fined, o r dies a s a r e s u lt of su c h disease and th e disease w as due to th e nature of sa id l a s t o c c u p a tio n , i n w h ic h h e was e m p lo y e d w i t h i n t h e p e r io d p re v io u s to h is d is a b le m e n t as lim ite d m th is sec tio n a n d in se c tio n s fo u r a n d five of this act, if h e a n d h is em ployer in such o c c u p a tio n w e re t h e n s u b je c t to t h i s act, t h e em p lo y ee, o r i n case o f h i s d e a th his d ep en d en ts sh all, except as otherwise provided in th is ac t, be e n title d to com p e n s a tio n in t h e a m o u n t a n d p a y a b le ia t h e m a n n e r p ro v id e d i n a r t i c l e tw o of c h a p te r fifte e n of T itle 34 of th e Revised S t a t u t e s , a s if s u c h t o t a l d is a b ility , as h e re in defined, o r d e a th re su lte d from injury by accident. N o c o m p e n s a tio n s h a ll b e p a y a b le for silicosis or asb esto sis if th e em ployee, at th e tim e of e n te rin g in to th e employ m en t of th e em ployer by w hom th e com p en satio n w ould otherw ise be payable, fa lse ly r e p r e s e n te d h im s e lf m w r itin g as n o t h a v in g p re v io u sly b e e n d isa b le d , laid off, or c o m p e n s a te d m d am ag es or o th er wise, b eca u se o f e ith e r o f su c h diseases. W here silicosis or asbestosis is aggra vated by any o th e r disease or in ju ry , not itself com pensable, or w here disability from any o th e r cause, n o t itself com pensable, is aggravated, prolonged, accel e r a te d o r m a n y w is e c o n t r i b u te d t o by silicosis o r asbestosis, o r w here death from any o th e r cause, n o t itself com pensable, is accelerated or m anywise co n trib u ted to by silicosis or asbestosis, th e co m p en satio n payable sh a ll be re duced and lim ited to such proportion o n ly of th e c o m p e n s a tio n t h a t w o u ld be payable if silicosis o r asbestosis were the sole cause of th e disability, as herein defined, or death , as silicosis or asbes to sis, a s a c a u s a tiv e f a c to r , b e a r s t o all th e causes of such d isability or death, s u c h r e d u c tio n i n c o m p e n s a tio n t o be effected b y r e d u c in g t h e n u m b e r of weekly o r m o n th ly p ay m en ts or the am ount of such paym ents, as indicated by th e circum stances of the particular case. 4. No co m p e n sa tio n fo r d e a th from silicosis o r a s b e sto s is sh a ll b e p a y a b le to any person w hose relatio n sh ip to th e de ceased , w h ic h , u n d e r t h e p r o v is io n s of th is act w ould give a rig h t to com pensa tion, arose subseq u en t to th e beginning of th e f ir s t c o m p e n s a b le d is a b ility , as herein defined, save oniy to afterborn children. W here c o m p e n s a tio n is p a y a b le for silicosis or asbestosis u n d e r th is act, the em ployer in w hose em ploym ent th e em ployee w as la s t in ju rio u s ly exposed to th e h a z a rd s of su c h disease fo r sixty days or m ore, and th e in su ran ce carrier, if any, on th e risk w hen such employee w as la s t so exposed u n d e r su c h employer, shall alone be liable therefor; th e am ount of the com pensation shall be based upon th e w ages, as defined in se c tio n 34:15-3? of th e R evised S ta tu te s, of th e employee w hen last so exposed u n d er such em ployer; and th e n o tice of in ju ry and claim for com pensation, as hereinafter req u ired in se ctio n six of this act, shall be given and m ade to such em ployer. An em p lo y er sh a ll n o t b e lia b le f o r any com pensation fo r silicosis or asbestosis u n less such disease sh a ll he d u e to the nature jiazard and ai the tri m eat, empl< as hen three posane m eat, follow.herein inencn ited, 1 paid c vided seven 5. I deace herein sumed ture o rions during ceding ployee of sili' dust, of no! w h ich under in th i th e ei by tb of su comp shall had l such Neu be pa silicei empie this ! in to or foi In th defin silica shall, this their (a) as h e as sp 34:15 as p: sectic <b) case if de in w) total disab both. If d: no cl occui the t excee of CO abilit at th gate cordi toon i herei clain OCCHI taut even herei or a such excei to tl dent defili by a 6. cont have Ploy, tosis on t or e the emp dise be ( =e oi th e n ta in in g ,n a to m i. \n g e s In y exam irom any th e in- anf the jflly lnir asbes' in the ; m juriuch dis cari the ra from in sec- rebv toreiri dedisease, nature h e was n o u s to h is sec; of this in such th is act, eath his th erw ise to eomvable in tw o ol Revised iiity. as d from ible for oyee, at ' mployre comrayable. itin g as ecL laid ntherliseases. aggrarry not sa bility { com- accell to by death f com3n y w is e lestoste, be reportion m id be ere the herein asbes- | , to all death, to be ber oi or the , d mated ticular l from able to ( the ae ons ol ipensa;inni$l ity, erboro rie ft c t, the ae emsed to - sixty carrier. ployee ployerm ount upon t rlB-SI rployee h ey an inai ter -, shall yet. ior an;, restosi? to the f t a z a i u ^ <->> n t ' - i i rtu iia u v exjcT &tid are r h a r a o te n s tic of a n d p e c u lia r to the trad e o c cu p atio n process or em p lo y ment. and was actu ally in cu rred in his ?m plym ent ancl unless to tal disab ility as herein defined o r d eath re su lts w ith in three year? a fter th e last in ju rio u s ex posure to su c h disease In su c h em p lo y m ent or m case of d eath u n less d eath iohows c o n tin u o u s to tal d isa b ility as herein defined, from such disease, com m encing w ith in th e period above lim ited, for w hich co m p en satio n h as been paid o r aw arded or claim filed as p ro vided in th is a c t nnd re su lts w ith in seven years a f te r such la-st ex p o su re. 5. In the absence of conclusive evi dence m favor of the claim d isab ility as herein defined oi d eath shall be p re sumed in fact n o t to be due to th e n a ture of any occupation w ith in th e p re v i sions of section tw o of th is a c t unless during th e ten. years im m ed iately p re ceding th e d ate of d isa b le m e n t th e em ployee h a s been exposed to th e in h a la tio n of silico n d io x id e (SiO :) d u s t or a s b e sto s dust, as th e case m ay be over a period of n o t less t h a n five y ears, o n e y e a r of which sh all h av e been m th is S ta te under a con tract of em ploym ent existing in th is State* provided how ever, t h a t if the em ployee shall have been em ployed by th e sam e em ployer d u rin g th e w hole of s u c h fiv e -y e a r p e rio d , h is r i g h t to com pensation against such em ployer shall n o t be affected by th e f a c t th a t he had been em ployed d u rin g a n y p a r t of such period o u tsid e of th is S tate Neither com pensation nor dam ages shall be p ay ab le fo r p a r tia l d is a b ility d u e to silicosis o r asb estosis in resp ect to any employee su b je c t to th e p ro v isio n s of this act n o r sh all th ere be an y liab ility in to rt for dam ages fo r to ta l d isab ility or fo r d e a th fro m silicosis o r a s b e sto s is In the event of to ta l disability, as h erein defined, or d e a th from u n c o m p lic a te d silicosis o r asbesto sis. c o m p e n s a tio n shall, ex cept as otherw ise p ro vided in this act. be payable to em ployees and their d ep en d en ts as follow s: (a) C om pensation for to ta l disability, as h e re in d e fin e d , o r d e a th s h a ll be p a id as specified in p a r a g r a p h ( b ) of s e c tio n 34:15-12 of th e R evised S ta tu te s , except as p ro v id ed in p a r a g r a p h (b ) of th i s section. (bl If d isablem ent occurs or, in th e case of no c la im fo r p rio r d isa b le m e n t, if d e a th occurs in th e c a le n d a r m o n th In w h ich t h i s a c t b ec o m e s effe ctiv e th e total com p en satio n payable, w h eth er for disability, as h e re in defined or d e a th or both, sh all n o t exceed th e su m of 000. If d isa b le m e n t o ccu rs, or. in th e case of no claim for p rio r d isa b le m e n t, if d e a th occurs, d u rin g th e n e x t calen d ar m o n th the to ta l co m p en satio n p ay ab le sh a ll n o t exceed $1 050. T h e r e a f te r th e t o t a l a m o u n t of c o m p e n s a tio n f o r d e a t h a n d t o t a l d is ability. as h erein defined, sh a ll increase at the rate of $50 per m o n th : th e ag g re gate a m o u n t p ay ab le to be lim ite d a c cording to th e foregoing fo rm u la fo r th e ftionth in w h ich to ta l d isa b ility , as herein defined occurs, or. in case of no claim for p rio r d isa b ility , in w h ic h d e a th occurs. Such progressive increase in the lim itatio n of th e t-otal a m o u n t in a n y event payable for to tal disability, as herein defined and d eath due to silicosis r asbestosis shall continue only u n til 3bch to tal a m o u n t e q u als b u t does n o t exceed th e sum s w h ich w ould be payable to the particular em ployee or his dep en dents had such to ta l d isab ility as herein defined, and d eath been d ue to a n in ju ry hy accident 6. U nless th e em p lo y er d u rin g th e outinuance of th e em ploym ent shall ave actu al know ledge th a t th e em - has contracted silicosis or asbes- o r f^ i or unIes?? em ployee or som eone n his behalf, or some of his d ependents th .^ h ie o n e o n th e ir behalf, sh all give e ethployer w ritte n n o tic e th a t th e diuT^ee ^ as c o n tr a c te d a c o m p e n s a b le ease, w h ich n o tic e to be effe ctiv e m u s t S^en w ithin three years and ninety i such disease in such em ploym ent, and also in case of d e a th from silicosis or asbestosis unless w ritten notice of such d eath shall be given to the em ployer w ithin ninety days thereafter no com pensation shall be payable on account of th e d eath or disability as herein de fined. of th e em ployee caused by silicosis or asbestosis. All claim s fo r co m p e n sa tio n for s ili cosis or asbestosis shall be forever barred unless a p e titio n is filed in d u p licate w ith the secretary of th e w orkm ens com pensation bureau at the S tate House in T ren to n w ith in one year fro m the date of disablem ent or death as the case m ay be or in case a n agreem ent of com pensation for silicosis or asbestosis has been m ade betw een such em ployer and '-iKh c la im a n t t h e n v. i t h i n o n e r e a r paym ent p u rsu a n t to th e term s of such agreem ent: or m case a p a rt of the com p ensation has been paid by such em ployer th e n w ithin one year after die last paym ent of com pensation W henever to tal d isability as herein d e fin e d fro m silico sis o r asbesto*5-- o c curs to any em ployee it shall be the uuty of the em ployer prom ptly upon o b tain ing know ledge or notice thereof to at o n ce r e p o r t su c h d is a b ility in The m a n n er specified in article six of ch ap ter fif teen of T itle 34 of th e Revised Statutes* b u t n o th in g in such re p o rt sh all be con strued to am o u n t to an adm ission of fact on the p a rt of the em ployer of anything therein reported T h is a c t s h a ll n o t a p p ly to cases of silicosis or asbestosis in w hich th e last in ju rio u s ex p o su re to th e hazard s of AT L A S T . . . A BA TCH IN G PLA N T WITH REAL PORTABILITY <N 0B LE> "P u tty P m ied ie BATCHING PLANTS HERE'S a high-capacity batching-plant (100 tons per hour) with every desirable feature of a permanent set-up, plus the profit-making feature of true porta bility. Quickly and cheaply moved, NOBLE Fully Port able wheel-mounted plants can be located close to every job to cut aggregate and batch hauling costs, speed production. W rite or w ire for in fo rm atio n on ffte com plete lin e o f N O BLS b a tch in g Plants- ROCK PRODUCTS, Ja n u a r y , 1945 99Q HOIST BUCKETS Designed and built by Industrial Brownhoist Corp. do a better job b ecau se, 1) L a rg e S h e a v e s re duce rope w ear, 2) Heavy Carbon - Steel digging lips take deep, clean bites, 3) Extra-sturdy constructidn insures long life. W rite for com plete facts to Industrial Brownhoist Corporation, Bay City, Mich igan. O ffices in N ew Y o rk , P h ila delphia Cleveland and Chicago. BROWNHOIST BUILDS BETTER BUCKETS SAVE LABOR! in moving materials ASK a n y operator oi a Sauer. m an Scraper or Cableway and he will tell you that this is the cheapest m ethod of m oving m ate rials from pit, bank, pond or stock pile. This 80 t.p.h screening and washing p lan t Is served by a Saue rman Slackline Cableway of medium size which n>eves the required y a rda ge from deep wet pit to top of plant at a labor cost of slightly over Ic per >ad These m achines, d ig , h a u l a n d dump autom atically in one opera tion an d are ad ap tab le to a great variety of conditions and require m ents. Because they need only a single operator, consum e little pow er in operation, an d are easy to keep in good running order, they cut costs to the bone. A small Sau-rrnan Scraper stockpiles crushed silica rock on an irregular giound spare alongside a *ashery and isclaimi thi> -tored mate rial as requir ed to a d.yina plant Sauerm an engineers will gladly study your m aterial-handling prob lems. Their advice m ay save you m oney and will he g iv e n free. W rite for our catalog an d at the sam e time tell us about your prob lems. S A U E R M A N BROS., INC. 530 S. Clinton St. Chicago 7, Illinois , i Uisfecists u c c u f ie d b&Joi't: lire elfgpij live dale of th is act. ;f| 7 A ny e m p lo y e r, em p lo y ee foes licjary o r p e rs o n f e e lm ^ ag g riev ed by 3 | r 1945 THE d e c isio n oi ih.e w o r k m e n ' co m p en sai|0|.J W 'ashin b u r e a u a ffe c tin g h i s i n t e r e s t s u n d e r ttoH act m ay appeal the sam e m the m au S l p io v id e a m s e c tio n s 34 15-66, 34:15.^5^1 an d 34'15-67 of th e Revised Statutes. 8 E x c e p t s u th e iw is e pro v id ed k-th is a c t t h e p r o v is io n s of a ittc le s two six. b o th in clu siv e, of c h a p te i fifteen T itle 34 of t h e R e v is e d S t a t u t e s ap$ ca b le to w o r k m e n 's c o m p e n s a tio n for in ju ry or deal)} by accident com pulsoiy insurance, insurance earner, a n d i n s u r a n c e r a te s , s h a ll a p p ly to en;J : ployers, em ployees a n d in su ra n c e carriersubject to th is act. eased i w h ich $4,800,0 on the i war wii pose, v mate k periods resent riods si or the Magnesite Plant Improvements N o r t h w e s t M a g n e s it e C o ., Chi,f welah, Wash., has let contracts s'; the Colonial Construction Companj. Spokane, Wash., for removing ovettf burden at its Keystone magneatsi; deposit which the company will de-' velop. The company also has let si contract to the Riblet Tramway Ca./ Spokane, Wash., for the construction of a tramway extending five mils' from the Keystone quarries to mill at Browne's Lake. The rock froa* Keystone quarry will be used to aug-; ment the supply from the Allen Moss and Finch quarries to take care' of the anticipated demand for fe*` product during the post-war periatj before also ha either 1 shortly five w. estimat revisior not ter 1945. New mated about 1 1843. 1 struct level 2 obtaim dierefc first ol ihe vol rise fr eneed < Roger Fisk, who is the field enp-i neer m charge of the development will continue to have ehaige of Kef; stone when it becomes a product!, link of the quarry system, accordugi to C. Arthur Sargent, manager. Otte? officials are Eail A. Garber, vies-* president and executive general man ager, Pittsburgh, Penn ; H. A. Zibel superintendent of mines, and M. I Tilton, superintendent oi the redac tion plant. It is ume o; will bt dwellir about.' bon is 000,00( 1945. ciudins expect^ way c crease S665.0C Magnesite Mine Ss Busy H e iz e r - S e g e r s t k o m Co., is operat ing a new $100,000 magnesite crust ing and scieening plant at its mi 30 miles south of Lovelock, Nev. T*C sizes, 3_, and l 1^ in., are produces the ore running about 65 perce magnesite. Two power shovels a; 20 trucks take out about 500 to; dally. The ore is used as ballast i; the San Francisco shipyards. Chart*; H. Segerstrom, Jr , Sonora, Calrf-i and John M Heizer, Lovelock, Netare the owners, but Dodge Construf-| tion Inc , is doing the mining unfit*; contract W ar The Penn., nee 8 gravel Higher Crete '*hich mesh of the for ci mum mesh in the C1ficat on tii Release Talc : fine" T he U. S T peasury's Office of SiF; plus Property has released 800,1$ Ibs, of talc as surplus on the Wf5; Coast. This is referred to as a contaminating agent consisting ^ magnesium silicate, 60 percent: m.' nesium oxide, 29 peicent; 98 peref cf the mixture will pass a 325-ff' screen. The talc is packaged in 41; lb units !00-m is req ment !ank rotati %dro This nd f ^ ct ^ ei