Document jNjX0oDNpoVjDx7bwbvvOQJ59

FILE NAME: ZK/L DATE: DOC#: BO/L DOCUMENT DESCRIPTION: d:Z Tl1e Boiler :\laker P CUI J~ll~l> !\Jontl1ly 11~: lhP_ Si111111<1115-BoarJ111a1_1 Pu_I,fohi'.1g Co,_Hpan,-. 34 ~orlh <.r~~tal StrHI. f-:1!-t ~troud('il1ur;, Pa., ""1tl1 l.Hrutne O/lirt's at 30 Churrh ~lrrel, :"\ew York Ci1,., [d,,.ard :\. Simmon!, PruiJeut. Henr,- Lt'e, \'ice-Pre~idt'nt. C. R. ~tills, \'icf'p,",idf"nl. L 8. Sherman, \'i('e-President. Samud O. Ilunn, \'i<'t-Pruiclent. f. IL Tlrnrnprnn, Vi<"e-Pruidf'nl. Roy \', Wright, Secretary. John T. De ~Iott, Tru~urrr. George Slate, Bm;ineu Manasu. Chirat:.o: 105 ~- A(lanu Strert. Washington, n. C.: 17th and JI Strtt'ls, :,.;, W. (lf'nl.unl: Trnuin,d To""n ~,111 Fn111<'i~ro, Cal.: :::15 .\larkrt ~lrr,t. ~ub~cription Prirf': Vuitf'd Stalf'!I, Canada aml Mf'xico, S:.00, Forrign Countries, S3.00 a Yt>ar. Sin~le Copit-s, 35 Lt'nls. Requt-~l (or change of ,uJJreu ,houlll ruch us on or hefor the 15th o( lhe morilli (Hf'ct-din; the hrne with whid, it is to go inlo t-ffect. It is difficult. and ,,fir,, impoHiJ1lt-. lo nipply hack numhns to replace lhose undeli1rered throufh failure to Sf'IHI ad\.ance nolict-. In sending us thange of address. plt-ase he t-ure to send us Jour olJ address as well as the new one. fuE TT1111.n ~f4KER is :i 111e1nber o( th~ As~odated Bu~inrss Papns. Inc. ,..\, B. P.l. anJ the _\udit Burt>au of Cirt'11l.1tiou~. (:\, B. C.) t,1TORIU. Sun-: H. I[. Brown. Editor. L. S. Blodgt'tl. Managing Editor. W. !.umhartl. Assoc-iale Editor. 1.:11..11 ]i11 :1:1il 11lc.: 11t1ttr td:.!l' ,,j :.1t ;i1;tlc \\"-111'.d hut: a:,:-a:11,t the t,!_:c;c "i tl1v 1bnc:, :it tli, -idc, ,,i tht l,t1ckc-t . .\ ,t1;::il1!l' 11tn11l1n 11i r:r,h 1n-r, 1li,11 i11,l'::,d : , h1 1'.d ::1c pl:itl'~ 1,1:c;,tlll'r. Thi, 111,th11d ,,i r,-i11i .. r,t:11t11:. \\hik 11 111:11 ',c: u,n- iotTUkl \L Co.\-t.\-1:\T Contents P,1!!f' . . . . . . . . . . . . . . . . . . . I ;3 GE!'l[RU: ;\orthern Pacific Rules for Boiler Import ion and T,;t . . . . . . . . . . . . . . . . . 17{ Combustion Ste-am Cen~rator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177 RalJ~in Locomoti,e Works Celehrates Its Cent<nnial . . . . . . . . . . . . . . . . . . I ;x \\'ork of the Boiler Code C1mu11ille-e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1:-t.! T\i~tit1g An.:::lt's and Straightt'ning T,,i:tt>d Anlt>s .. . . .. . .. .. . . . . . .. . . 1:n Roiln St('ds and Other Sort Stef'ls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . lrt-1- 1.oromoth t' Boiler Slrf'nglh For1nulas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186 Jlf'nltpme-nt and Application of Fusion Wf'l{ling in Prrsrnrt> \'r~~f'b.... ]rt8 Rf',isions and Addenda to the Boilrr Con~lru<"tiou Cotlf" . ..... .. . .. .. . l~l Vi1:e Filtin~s for \\'f"lding . .. . . . . . . . . . . . . . .. .. . . .. . . . .. . . . . . . .. . . . . .. .. JQ::! OL~olrt.. Shop Equipm.,nt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Q3 '.'t-w Ball Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193 CampLell Cut-Off :"\fa<"hint' . . . . . . . . . . . . . . . . .. . .. . . . . .. . . . . . .. . . . . . . 1Qt P(,rtahlt> Hotary Air Grindn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l9-1- :o,n11 'IC\TIO'-"S: Crane Buckt't Rt'pairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1'>5 I .1~1111! o( Carnher I.inf' . . . .. . . . .. . . . . . . . . . . .. .. . .. . . JC.-5 Jl.~110!'1:S .,,o ...\!'1S\\ERS; Limit of H~drostatic Tt'sl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . l'-16 r~e-I.a~ oul of Taprr,:>d ~piral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . )06 Uenlopment o( Firt>hox Crac-ks ......................... ,L.......... JQ7 of l.og:arithru Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . JQS \~~(Cl \TIO,s , , , .... , , , . , . , , . , ... , . . }Q9 .::ru_oi o Bort~R PtTF.'.\'.Ts, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ::!00 Communieations Crane Bucket Repairs ro TJIE EDITOR: .-\t one of the locomotiYe shops in Florida, \\'e haYe a 0com,)tiYe crane equipped \\'ith a bucket used to handle oal an(! other material around the shops. For many tars ,,e had experienced difficulty with this bucket clue o the fact that it was frequently damaged when dropped m the rails. The bottom of the bucket \\'Ouk! be bent JUt of shape, necessitating its remo,al from the crane. t then would be taken to the shop, taken apart and traightened. The accompanying- sketch sho\\'s the application of re- nir1rct:ment plates which were applied to the crane ,ucl-:u about three years ag-o and since that time the ,uck<:t has not been brought into the shop for repair;;. n rL"-in forcing the bucket, -inch metal \\as used, this ,cin~ rolled into the shape of the bucket and applied as :;,J:cated in the sketch. It was so placed that the end 1, -. : ... ( r ~.-. ,-. r,.,._ ..--1,-., - - 1 1 , 1 Reinforcement plates on a crane bucket siderccl as cxp,nsin~ at the time oi application, has. in this case at least. ,and both time and m<mc:y in the long run. Jacksom-ille. Fla. C1rn1s H.\XDLEE, JR. Layout of Ca1nber Line To THE EnnoR: There are many different methods of laying out the camber line on a plate and I am sending one \\'hich I hope \\'ill be a help to layerouts. This method I have found to be accurate and not Yery difficult to remember. First of all, dra,, a horizo11tal line 1'-1' equal in length to the circumierence of the small end of the frustum oi the cone \\'hicl'! you are going to make. Erect line 5-J perpendicular to it at center. Extend line 5-1' to JI to equal half the circumference of the large end. .-\t .l/ erect a line at right angles to 5-JI. ,J i I 91 FN c' 1 ~_,Ji, ; ,z . 1" '~...4 .S i '2' 3' 4' I Q M Method of laying out a camber iine ):'ext. \\'it h 1' as a center and radius equal to the height of the plate which \\'ill he the slope height of the frus- tum of the cone. draw an arc to intersect the line drawn through JI at the point K. Transfer the angle Jf-1'-K to 1'-N-0 and extend line 1'-H to line 5-J. With 1' as . T;:, :::,c-riur of t_he boiler at C\Try \\'a,hing. liy the _ u.-e ,.; :vrch _and 1111rror. _must be as c11mpktcly txam- f~_joe,i :,, poss1hlc. po:l'.J :,'. det:ich and scale :-u1_tal,k rods \\'h1ch has nut and s,rapns eml,cc11 di,lntlg,d liy A[the ,,:i,h:n_g. . . ~ In aJd1t1011 to the usual rq~<'.rt. the torcman 111 d1argc J ,.-ill \,;('cp notes 011 the cond1tw11 ui cad1 hoikr under tS h.is cL'-.-ip~re. . . OJ: The ~tandar<l pressure tor \\'ashmg out is not less than c1L) pounds at a }~ -inch nozzle. 'r .-\: the roundhouses, flues will be expanded with Ji grc,,,it:d expander only and tluc 1:oikrs a_rc not to be _-;.: ustd. ":,;ccpt when new tlucs arc bcmg put 111. i Th<: lighting of a fire in the firebox: is positiwly pro- l hibi:c,1 except on the personal authority of the round-I hon,'-' foreman, assistant roundhouse foreman, boiler f:f forrm::11. night roundhouse foreman, or hostler. The ahore nll'nti_oned rG\tn?house men will be held person- ~ ally n:s~ons1bl_e for lllJUr)'. to fircbo~es due t~ firing up i, Jocomottves without suf-fic1ent water 111 (To be co11ti11ued) the botlcr. Jf-~,- 'f' -,;, Combustion '1 ~- Stean1 Generator ~-: (nn1bustion F:ngineering Corporation, 200 JI adison '.. Are1me. Xew York, is now offering the Combustion j: steam generator, a standard steam generating unit built :ff. in \';nious sizes and providing a wide range of capaci:~ ties at any desired conditions of steam temperature and f pre,sure. Detail designs have been completed for eight :;; sim ,\'ith capacities ranging from 70_.000 to -+00,000 :i pounds of steam per hour, from and at 212 degrees F. g_ .-\s shmrn in the accompanying illustration, this de~: sign (ombines in one unit all the clements required for :. iutl burning. steam generation and superheating. heat f reco\'ery and ash disposal. Those familiar \\ith the ~ dn"l"pment of pulverized-fuel firing and the history ;. oi ,:"am generating practice will note that there a re 1, no 11<,\"d or radical departures from fundamentals, but - r~th,-r that the design represents a highly compact and ~ s1mJil'. arrangement of long and \\'ell estahli~hecl ele\ mrn,,_ They ,,ill also note the apparent absrncc of the maze fJi pipes, headers, etc., exterior to the boiler cas- ing. 1rith which such construction has become associated in their minds. These pipes and headers essential for : compltting the circulating system of water walls are ;. lo.:attd entirely within the casing, ,Yhcrc. in addition t to p"riorming their normal function as circulators. they '. also ser\'c as highly effective heat-absorbina- surface. Jt .-\ point of particular interest is the enti;"c absence of optnin;;s thr~ugh !he casi1~g. Such openings arc or; dinar:ly required tor the 111gress and egress of wall tubes and headers. They arc never perfectly sealed and -.; cons~quently p~rmit the discharge of dust during soot- i'. ~loll'mg opcrat1011s as well as the inflow of air durmg nrJ~mal_ op~ra~ion. The Con~bustion steam genera~ tor ca,mg 1s all'-tight and dust-tight throughout . .-\11 four ,rails of the furnace arc \\ater-coolcd. each w~l} ),c-ing- composed of a solid row of tubes with only SUf>:u1t ~pace bet\\'een them for construction requireffiti)'.,_ 1 he watcr-\\'all freder and deliven tubes, at lht :,,,tt,,m and top of the iurnacc respectively. comr,k:,, _, 11c heating surface oi the iurnacc proper nearly ~II ': ,,-hich is exposed to radiant as ,,ell as comcc't1,,:1 :,c::it. r result of this arrangement of \,all tubes and Sectional side !'!levation of Combustion steam generator showing the pronc,pal parts and arrangement of elements to the exclusion of exposed rciractories and ha vina- th_e maxin~u_m attainable quantity of contained wate~ \nth pro\1s1on for the hicrhest possible freedom of circulation. "' This type C?f iurnace is perfectly adapted to the corner-tangential spttm of firing ,,hich produces in- tense turbulence ,,1th extreme rapidity of combustion and corrcspo_ndingly high temperatures; these high tem- peratures bc111g the result ( not the cause) of the high rates of combustion. ' Another ieatt:re o~. interest i_s the superheater by- pass <lamper which attords a urnquc and much needed means_ of con_troling superheat temperature. Adequate m space _is provided tor the superheater \Yhich is so lo- cated the assc!11bly as_ t?. permit of simple supports and ~ degree ot access1bil1ty unusual in boiler construction. Th: first unit of this ne\\' design to be installed in :,-\menca has no\\' been in operation for several months 111 the plant of a leading industrial company. In overall resi:Its and ease and cleptndableness of operation, its pertormance has set an exceptionally high standard. . R._ I. d1_stn~t aFnrdetz,,i_i!hasa~hsuemme transierred charge fJi from the Reading the Pittsburgh dis- trict 111 place r,t \\ yman Ho\\clls 1\'ho ,,-ill now direct the acti,ities of the Reading- district. Tl:c I1ahcr,ck & \\'ikr,x Cc,mpan~. Xcw York. has acquired_ 1wn-cx,lusin: 1:,cnscs under the automatic arc-\\e!dmg patents r,i the .\utr,matic .-\re \Veldin" Company, Xew York. Th< initial paymc-nt for such