Document mqd13Z5KJD09KpQGMJo7nbLdZ

FILE NAME: Caterpillar (CAT) DATE: 1971 Mar DOC#: CAT047 DOCUMENT DESCRIPTION: Advertisement in Trade Magazine gW 'E P. f Parts Exchange makes simple repairs simpler Take relining brake bands. You put them in a vise . Knock out the old lin in g s. Position the new finings, and flare the rive ts. R e p lace the bands. And you're done. Sim ple. A tw elve-year-old could d a it. You could do it in an hour or two, at night or a Sunday. Because your C a tbuilt m achine h as to be back on the job. O r you can m ake it really sim ple. C a ll your Caterpillar Dealer for P arts Exch an ge brake bands.Then all you do ik remove the worn bands and replace them with like-new exchange units. Pad s Exch an ge makes sense even w ith b ra ke b an d s. B ut th in k how m uch time, sw eat, and money it saves you on generators, w ater pum ps, m CATERPILLAR P a rts E x ch a n g e --another reason to rely oh your Caterp illar Dealer.' ENGINEERING AND MINING JOURNAL 33 West 42nd Street, New York, N. Y. 10036 E/MJ CO N TEN TS M A R C H 1971 V O L U M E 172 N U M B E R T H R E E 1 0 2 n d A n n u al S u rv e y and O utlook 79 U S Mineral Production Statistics 80 Average Weekly Metal Prices 82 Annual Average Metal Prices through the 1 9 0 0 's A lum in um ................ ................ 85 A sb e sto s .................. ................132 Antim ony ................ ................ 97 Barite ........................ ................143 B e rylliu m .................. ................137 " Bism u th ..................... ................115 Boron ........................ ................121 ! Cad m iu m ................... ................100 Chrom e O r e ............. ................ 92 Co balt ........................ ................113 Co lu m b iu m ............. ................ 89 Co pp er ..................... ................138 Flu o rsp ar .................. ................127 G erm anium ............. ................122 Gold ..................... ................103 G y p s u m ........................ ..................1 3 0 H yd ro carb o n s . . . . ..................1 2 5 Iron Ore and Steel ............... 1 5 4 Lead .......................... ................128 Lith ium ..................... ................ 94 M agnesium ............. ................ 96 M anganese ........................ . . 99 M ercury ............................. . . 144 M olybdenum ..................... . .1 1 9 N ickel .................................. . .1 4 6 Phosphate .......................... . .1 3 6 Platinum m e t a ls ................ . .1 2 3 Potash .................................. . .1 3 1 R are Earths ........................ . .1 0 5 Selenium ............................. . .1 0 1 S ilv e r ..................................... . .1 4 1 Su lp h u r ................................ . .1 3 3 Tantalum ............................. . .1 0 7 Tellu riu m ............................. . .1 2 1 Thorium ................................ . . 1 1 7 f in ....................................... . . 151 Titanium .......................... . .1 5 3 Tungsten ............................. . .1 4 9 Uranium ............................. . . 1 0 8 Vanadium .......................... . .1 1 2 Z in c ....................................... . . . 87 Zirconium -Hafnium . . . . . . . 1 0 2 Departments C a le n d a r ................... 4 New projects . . . . . 26 New b u lle tin s . . . .1 7 6 E / M J outlook .......... 9 T h is month in m in in g 27 P e rso n a ls .......... . . . 179 W ashin gton impact . 13 O perating id eas . . . .1 6 0 B o o ks ............... . . . 1 8 4 M arkets ................... 21 New products d ig e st 163 P ate nts ............ . . . 1 8 8 Personal Business ..2 0 5 Behind the Bylines 252 2 Editorial Corre^Vondencej Direct a!' editorial and advertising inquiries ic Engineenng/Mimng J o u r n a l , 33C West 42nd Street, New York N \ 10036 Subscription Correspondence' Adress change of address notices, to respondence regarding subscnnlio service or subscription oiders tiFulfillment Manager, Engineering Mining Journal. R O Box 4HS, Hightstown, N. J 08520 Change of address notices should be sent promptly; provide old as well as new address, include zip code or postal zone number if any If pos sible. attach label from recent issue Please allow one month for change of address to become effective Postmaster: Please send form 3579 to Fulfillment Manager Engmeering/Mming Journal, P. O Box 430, Hightstown, N. J 08520. Subscription: Available only by paid subscription Publisher reserves the right to refuse nonqualified subscrir lions. Subscriptions to Engineering Mining Journal solicited only from executive management, engineering, operating ad supervisory officials associated with companies engagec In the exploration, mining, milling smelting, refining and processing of metals and non-metallic minerals ex cept coal, oil and stone Posmoi and company connection must be indicated on subscription orders for warded to address as shown above Subscription rates for individuals in the field of the publication US and possessions, and Canada, $6 per year, $12 for 3 years, (single copies, $1); other areas, $8 per year or $15 for 3 years, (single copies, $2) Executive, Editorial, Circulation ar"4 Advertising Offices: McGrau-ll Building, 330 West 42nd Street V York, N. Y 10076 Telephone 9' 3333. Publication office, 645 Nor Michigan Avenue, Chicago, Illinois 60611. Second class postage paid at Chicago, Illinois and at additional mailing offices. Title Reg (R) in US Post Office Title also registered in France Copyright 1971 bv Mc Graw-Hill Inc. All rights reserved The contents of this publication nny not be reproduced either in whole or in part without consent of copy right owner Officers of tb< Co-p( rollon: Shelton Fisher, Preside-'-'', Jo'-' ph H Allen, Group Vice President - Publications and Business Services; John J Cooke, Senior Vice President an ' Secretary, Ralph J Webb, Treasiu Officers of the McGraw-Hill Pur cations Company: John R Enu President; J Elton Tuohig, Serin Vice President - Services. George H Reppert, Group Vice President, Vice Presidents Ralph Blackburn, Circu lation; John R. Callaham, Editorial, William P Gigho, Administration, David G. Jensen, Manufacturing, Jerome D. Luntz, Planning A. De velopment, Joseph C Page Market ing; Robert M. Wilhelmy, Finance Unconditional Guarantee: The pub lisher upon written request agrees to refund the part of the s u b s c r i p tion price applying to the remaining unfilled portion of the subscription if service is unsatisfactory AB* .0 : a E / M J -- March, 1J( NEW PRODUCT DIGEST j i 1} i;i }i si i in ! 1 i I; the 780 CK meets the demant loader-backhoe users for a genii! heavy-duty excavator. The buekhoi and loader buckets have capacities ranging between Vs to % and I h to 2 Vi cubic yards, respectively. Circle 56 on reader service card' Ferniont Floodlighter is the name of the new self contained trailer mount ed and self powered emergency light ing unit manufactured by the Fcrmont Div. of Dynamics Corp. of America. The Floodlighter consists of a 5-kw diesel engine generator, a 12-ft high telescopic mast and four 500-watt floodlamps. In addition the unit has capacity for 8 hour con tinuous lighting, and portable masts each with two 500-watt floodlamps for secondary support. Circle 57 on reader service card The Tainrock Duo drilling rig is a new drill jumbo for sublevel-caving developed by the Tainrock Division of Oy Tampclla AB, Finland. The unit features boom swing of 52. boom lilt of 90 and feed swing ot 90. feed extension ot 850 mm. abil ity to drill parallel and asymmetric holes and a centrally articulated rub ber-tired frame to achieve minimum turning circle. The standard equip ment consists of a rock drill. 1.400. and a chain feed with pneumatic re tainer and automatic stop arrange ment. 'Circle 58 on reader service card The Robbins Tunnel Borer built b\ the Robbins Co. weighs 600.000 lbs and will bore a 2 1-ft diameter tunnel through solid rock at the rate ot 10 ft per hour. It is the filth machine ship ped in 1970 and the 38th built by the company. It will be used for boring a water power tunnel by the Ente Nazionale per I'Energia Elettrica of Italy, in the Apennine Mountains. Circle 59 on reader service card- Series H400 heavy duty industrial fans, manufactured by Wcstinghouse has been extended to pressure capabil ities up to 44 ins. The fans are now available with wheel diameters rang ing from 26'/ to 57Vi in. volume capacities from 4,000 cfm through 36,COO cfm and static pressures from 20 to 44 in. The fan construction fea tures flat radial blading for particle,; adherence minimization, heavy guage blades and housings for strength and rigidity, and sturdy gussets for firm blade support. Circle 60 on reader service card John Deere recently announced its new line of loaders and crawlers, the JD350-B and JD450-B series. The E / M J -- March, 1971