Document BwOVjyy857dbE5wDG09XJrEE

wm riyycr D PLAINTIFF'S EXHIBIT DC-9 CONTENTS FOR THE MONTH OF SEPTEMBER, 1940 VOLUME 44, NO. 9 EDITORIAL STAFF ARTHUR L RICE EDITORIAL DIRECTOR RALPH E. TURNER EDITOR ANDREW W. KRAMER ELECTRICAL EDITOR RICHARD H. MORRIS ENGINEERING EDITOR Subscription price $2.00 a ysar in the United States and Possessions. Canada $2.75 a -year. Other countries $3.50 * year. Single copy current sue 25c: back issue 40c. Copyrighted 1940 by Tec'n,aca! Publishing Company. The Biggest Thing on Earth . 50 With the Editors .51 California Goes Modern ... ... 52 Maintaining Optimum Boiler Efficiency. By Parker A. Moe .................... 54 Red Tape--A Curse or Blessing. By George W. Dyson ................... 57 Auto Fleets Expense. By Randolph Whitfield............... ..................... . 59 Modern Furnace Design. By G. Campbell Kohlar......... ..... . ..................... 60 Work Schedules. By E. W. Robinson...................... ..................................... 63 Power Plant Operation Problems. By Richard W. Crain........................... 65 Engine Temperature Control By Recirculation and Mixing. By T. Napier Adlan ..... ........................--,,........... .......................................................... 68 Cable Care and Selection for Coal Handling............................... ............. 69 Turbine Governors Can't Talk. By R. W. McLaughlin................................. 71 Electric Power Load and Growth..................................................................... 75 Transformer Increase Capacity of Lighting Circuit.................................... . 77 Recent Developments In Compressed Air Circuit Breakers......................... 78 Motor Testing Simplified. By C. O. Von Dannenberg............................... 83 The Practical Engineer and Electrician............. . 85 'Round About With the Engineering Editor...... New Equipment ............ ........ ........................... 101 .102 News from the Field................ ......................... Coal Price Regulation....................................... Progress in Accident Prevention.. ........ ......... Illinois Institute of Technology Eilects Officers., Nickel in the Electrical Field............................ Stevens Management Conference..................... For the Engineer's Library................................ New Engineering Books ................................. Power Plant Construction News......................... .110 124 .126 .128 .130 .132 .136 .139 .140 Contents of back issuas of Power Plant Engineering will be found in Industrial Arts Index on file in Public Libraries. PUBLISHED MONTHLY BY TECHNICAL PUBLISHING CO. KINGSLEY L RICE President ARTHUR L RICE Treasurer EDWIN C. PROUTY Vice President WALTER PAINTER Vice President CHARLES S. CLARKE Secretary PUBLICATION OFFICE, S3 W. JACKSON BLVD. CHICAGO. ILLINOIS ADVERTISING REPRESENTATIVES CHICAGO: Cb.He. S. Clarke 53 W. Jackson Blvd, Chicago. 111. PHILADELPHIA: H. G. Wild* 500 W. Clapier St.. Ph.ladelph.a, Pa. NEW YORK: John A. Kershaw Graybar Bldg, New York. N. Y. CLEVELAND: Gaorga E. Andrews 11733 Edgawater Dr, Ukawood. O. 49 Portable Cutting Machine The Harms C.m.orific Co., Cleveland. O., announce a new and improved Model K portable, motor-driven gas cutting, machine. Air Hose for Hot Oil Service Recommended for use where excessive hot oil conditions are encountered, The B. F. Goodrich Co., Akron, Ohio, an nounces the addition of a new air hose made with a snythetic tube and rubber cover. It is known as Type 54. Laboratory tests indicate that the syn thetic tube used in this construction should give two to three times longer service life when exposed to the same conditions as a tube made of natural rub ber. The hose is built with a smooth green abrasion resistant cover. Oil Pressure Unit A new compact oil pressure unit de signed for circulating lubricating oil at a predetermined uniform pressure througi lantern glands of sturnng boxes, th.-ouei large bearings, and for supplying oil la hydraulic equipment, heat treating sys tems or where there is the problem csf circulating or supplying oil at a unitor-- pressure, is announced by the Duramenglic Corporation, 2104 Factory Streep. Kalamasoo,_ Michigan. This Oil Purest sure Unit features a manual type regu lator to provide a circulation up to lOSW Tlie Model K i powered by a Uni versal Electric Motor and will cut straight lines ui any Ivnviih. \vith square i*r bev- tried cd.iv> I 3 t* N> in. diam. circle? wi:: standard equipment: ; ** a spec* ranee :*ri:n n :o on ;n. per nd;:. i-.rua:* or reverse. An in.-huit >t*.#P texture per mita cutting ui sharp a rv.de>. and a irac* mg feature provide? tor cutting irregular lorn'..-. Mounting for 2 torches is pro vided. It weighs 45 lbs. complete with torch. Many different Harris torches are available for this machine to cmcier.tly use acetylene, propane, natural gas and other fuel ga-es iti combittati- n with oxygen. Insulating Block B-Il MmN'i-IjLuck i> the name ui a new insulating block developed by Baidwin-Hill Co.. 577 Klagg Avenue. Trento:;. X. .1., and suitable for a full ranee of temperatures up to lomi deg. F. It is fabricated ui lt-li Black Rockwool, felted and bonded together to form a semi-hard block that is light in weight, easily cut and luted around equipment having curved -uriaci- of large rail:; as well as lint surface-. It i< cspcviallv .i inpted to Is 'la r wall-. I wet i limes, duct tanks, tow it' at. i 'imtiar hot i.oiipnaru and is Transfer Screw and Punch Sei A new method for transferring screw and stuil holes as well as blind drill holes from a drilled surface to another that is to be drilled in duplicate has been per fected in the Xeiisen transfer screw and punch sets .now available from Xeiisen loot & Die Company. Berkcly,- Mich I.ai'.ui punches are made t.i tran-ter drili lb. pressure, a cooling coil of scantiest copper tubing, an oil filter, pressure pump, explosion-proof electric motor, cast ire* base, vapor-proof lid, oil tank vent, uii level gace and pressure gage. Unit supplied complete or as a motor-pump j<seinb's. Flashlight Extension This device known as the Sierra Flashlight Bulb Extension, is made S* the Sierra Aircraft Co., Sierra Madm. Cal., of special wire encased inhigh-grsdr aluminum alloy tubing, to aid in tnakm* dose inspections. The extension ha holes through a drilled section in diam eters from 17fo4 to 59,04 in. The punch is made with a case hardened tip that is removable tor replacement and, when a solid blow is struck on the punch head, will transfer the drill center and drill circle with Complete accuracy. Center, and drill circle, penetrate steel to a depth fit UU1U in. Transfer screws are made with a shoulder support of uniform height enabling hides of carious sizes to he transferred in the same plane at one im press'' ui. made in lengitt' H orn to .in w id::is ir. ir r, t.. 12 in. ,md thiekne"e' from. 1 t 4 ut, To facilitate applic.-.lioit of tills lihuk. ii is adsistdile lo use i'.-H Bottd- I lie. a highK eMicietit adhesive that holds lire block in place against the surface Uing insulated and is eUectne in sealing ju.i,.us 'nrf.u'i-s. Gasket A Nt.w kind a! gasket which cmhudir' a <'11mi11na;i,.11 the desirable properties "I ashe-tus and neoprene has been intro duced by Victor Manufacturing & Gasket 1.'". of Detroit, Mich. 'Hie gaskets are made I*\ a new prone's which le-uits in aitdttireix iliuetent type of product from the U'tial rttblier or neoprene bound asbesto' compo'ition is.tumonly known as super-heat packing. These new gaskets are not supplied in sheet form. In the manufacturing process they are first blanked from asbestos sheet material. Then the gasket is coated with a neo prene cement developed especially to in crease its resistance to the passage of gases and liquids. ,, o to ou u mtu any liaasshmh*g*h*"'. 7- ps#***' can go dwnjEW*,2: fi'Uts or arounndd corner?-"*^ make it n5oloitJs:CoCwt'cnmsmSOUtha'Tt ' .;^"^'