Scientific American 1941

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Thomas A. Edison's Latest Invention A Storage Battery Designed and Constructed from the Automobile User's Point of View ...

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illustrated article published in Scientific meric. BAR . Order yonI' motor hom dealer from us. , 4" Walnut Street, Philadelphia, Pa. a ONE OIL COMPANY, BROADWAY, New York City. regard to securing valid patent protpction for their in­ v Trade-:llarks and CopyrightM registered. oxclusively the manufacture 2. Price cents.01' for Mechanics find Tradesmen. M Broadway, New York B ranch Office. On account the low voltage the cell, a vehicle battery given voltage must contain larger number cells than a lead battery, twenty-fonr lead cells being equivalent forty the nickel-iron cells of same ampere-hour capacity but the low voltage and comparatively high in· ternal resistance are disadvantageo1ls from the purely electrical rather than the vehicle point view. TOOL MAKERS, EXPER I· M ENTAL PAIR WO ETC. "FREE" Write for Catalogue., Philadelphia, Pa..,an Supplement 685., 308 Park St. Sag naw; ich A. D WAT MOTOR .00., Chicago, This our 58th year. pipe., ROCKFORD, h. Please mention the Scientific American when writing- advertisers through wide range, and may far hig]her than would safe with the lead battery.iliu(', in., 507 Olive Street, St. Sent FREE" A. 3 One contains carbon residue, foreign matter, acid, impurities like all cylinder (mineral) oils. 'Publishers '1. BIotor for grmding, polishing, fans, sewing mtwhines for Doctors, Dl'ntists, Urn;!' �:)��:Il��l�d;�lfe!�$e;:'����f9���ei�� i �:�· tor and pulle:v 'olll)� $2. The Sebastian Lathe Co•• 120 Culvert SI.50, cnsh with or­ d(·r. One boy does the work four men. CRAY MOTOR CO.. Lowest fuel cost for runs Gasoline, Kerosene- Distillate, Gas Alcohol and has perfect ubrication.• 46 "St " Foot aml ar Power Screw Cutting Au��t LathesFOR FINE, ACCURATE WORK Send for Catalogue B. ���.. i\'1ounted on wheels o�· tonl ls., and all newsdeal ers.. It will not run out and leave contact points dry. 625 Wash . Arrane-ed for Steam or Foot Power, Velocipede or Stand-up rrreadle. with provision for circulation elec. Net price $5, cas witlt orrle-l'."��;::;;·1J-Neatest, simplest and be,t on Ithe market. THE POWER CONTRACTOR'S FAVORITE ENGINE. Louis, Mo. S ENTI AME RICAN A ttache(J sny water faucet will deyelop lip to according: s i ze pipe and W:ltB!' pre!;,�llre., 50c., Athol.. Send for Lathe Catalog. Connections between the cells a battery and with the external cfrcuit are made means heavy niCKel-plated copper·wire connectors, with steel lugs swaged the ends and fitting the taper terminal posts. Manufactured the The Ke)Jstone Safety Starling Handle Co. Write/orcatalogue once, mentioning thispaper. and states that pays better put over .!!!_ and B K TYPES FOR MARINE AUTOMOBILE and STA· TIONARY ENGINES SEND FOR LAT EST BULLETIN 557 THE flOLTZER-CABOT ELECTRIC CO. Yearly subscription, $3.L, Write for Free Sample Manufactured by T Y C CO. Write once for generous sample bottle and Magneto Bulletin. CIENTTFTC A:\I ERTCAN Sf' PP1. A E-For Sixty Ye:m' the Standard the WOJ'ld for Quality. l3-in. pipe, Ibs. In this "can electricity" the solution s a mere liquid carrier ions-it has, O t speak, moods and tenses its own to catered the battery user. ('at nlog free. ]6. Catalog free. water during long periods the life t>f the cell. CO. Easily lucked or released turning handle. swin�. DETROIT.. GILSON MFG. bottles., Dept.cyc1e motorS. 3 One not too light properly lubricate and keep lubricated any bearing (ballbearing ordinary bearing). /). A. four cylinder. Patents and 11 Paten secured. In estimating the true commercial efficiency of road-vehicle transportation, the ton· miles obtained must compared with the total cost operation the vehi- cle, with due allowance for all-around reo liability. J\dive Ag'ents wanted. each ' brought in- Istantly into u,e bal joint . Lowest cost because it delivers greatest available power per horse. The element made very com,;;act. 1492-4 in. l\Ionev b:lcl;; for allY reason. Accepted the authority. EMEXT 23. L O. Starts easier and quicker than any other eng:ine, occupies less space, is ess cum bersome, with less vibration, therefore adapting for either stationary, portable traction use. MIC . WE LL DRILLING MACHINES Over sizes and 8tyles, for rilling either deep or shallow wells any kind soi rock.. 361 roadway, New ork, or 625 Street, Washington, C. stated that the cell im· proves use, instead deteriorating, and the company guarantees renew 3 One clear oil compound absolutely pure with just enough body oil perfectly the most delicate or sensitive action point. Send for our Special Offer ! ------ ------ --- fiutomobile Running Gears WITH PRESSED STEEL ANGLE IRON FRAMES Also all styles bodies. St. Ball­ bearing, safety starting handles for all makes cars. The Bible ofthe aero enthusiast, experi­ menter, builder, aviator and advertiser. LA FAYETTE, IND. Send for catalo. vehicle manufacturer using the battery reports that charged ex· hausted battery A·4 cellR the rate of 100 amperes for short tin1('. THE EDISON CONCRETE HOUSE q How constructed. THE TEMPLE PUMP CO. pressure, in. Strong, sirupie and durable., LEIB ST.r MUNN COMPANY, Inc. ALOE CO. PRICE 11<1.l1lal'.blisbed 18IiO-ALOl<: Civil Engineering and Surveying Instruments DRA WING MATERIALS SIJPPLIES B . slow speed, high duty engine. Any mechanic can opprat e them easi Send for eatalol!. Y. 361 Broadway, New York WHAI ONE MAGNETO OIL ? January 4. makes Blue Prints, Black Prints and Brown Prints. Louis, Mo. The Express System Saves Money. All communications are strictly confidential. Our IIand-Book Patents will sent free on request.00 SI'JIId tor 232 page catalog No. -Whereas the lead cell the constitu­ tion (proportions acid and water) con· ductivity and specific gravity all undergo definite changJe during the cycle of charge and discharge, the Edison cell these ql,lalities remain unaltered. any battery any time for half the CO'lt bearing of new battery., Port Washington, Wis. Esb. Ruby St. Sold all garages, auto supply dealers, hardware and general stores-10c. "Boosting charges"-given a vehicle battery when partially dis· charged, carry through a longer _period than its prescribed day's work-may given for hour's run at a rate two three times the normal charging rate and regular charge may be completed hurry starting at a high rate and gradually dpcreasing the rate.-SIX IMPORTA� T formulas. sYz single cylinder. Equip Your Car With the "Webster" Safely Starting Handle, positive its action, absolutely prevents injury from back-kicks, adopted part 0/regular equipmentfor lco cars. MO�M. 1 for complete catalog today••teU8 all about how these high grade lilotors are built tbe largost plant the world devoted. Ours the Oldest agency for securing patents ; it was established over sixty-five years ago. connection. BABBITT METALS. Send fOl Catalog I>o. Bill' THELOWESTCOSTENGINE ��{!i�\�;:�leasIest e machine operates, delivering steadier power than any other gasolIne engine, adapting especially for operating farm machinery, with better results and least waste grain. WilliAMS BROS Ithaca. Don't scoff. W. ''''ashing . Established 1872. Order from your newsdealer from . Price cents mail. Let explain.ven any inventor furnishing with model sketch and a brief description the device question., 1 Legal Notices IN VENTORS are Invited communicate with Munn o. WILLIAMS, BROWN EARLE, Ine. 918 Chestnut St. . The nature the support rna· terials and the method applying the active material the plates enable the cell stand dead short circuits without injury. Both free. - Every User Blue Prints Should Investigate the New EXPRESS System Blue Printing Automatic, saves half the cost. engine made has wide range use. , concern. 25c., Cincinnati, Ohio Fon G NSMITHS. A Free Opinion the probable patenta­ bility iTlventi�n will readily gi. THE SEBASTIAN IS-INCH ENGINE LATHE HIGH GRADE LOW PRICE Automobile Builders.l:ulC>.. BORBEIN AUTO CO. Senel )'onr water pres;;nre and silt supply pipe. how much it will cost, practical from archi· tecturaI and engineering standpoint ? These and other important questions relating the structure are discussed good, thorough. With engines llorse powerR. trolyte because the latter constant, chemically, electrically and physically. Garages, Repair and General Jobbing Shops find this the ideal lathe for their work. two cylinder. YOU WILL MAKE MISTAKE YOU NOT WRITE FOR INFORMATIQN., Manufacturers, 417 West 15th SI. 1). In charging, the rate can varied 3 One not too heavy-will positively not gum clog, collect dust dirt, harden dry out. From 9-in. Improved bucket wheel construction. For user:" Blue Print Paper pply Lanting Machines for making blue print paper linen. Scale drawings of mac hine, construction details, subscribers' forum. A. ]8-B. \-Vorl{s day NigJlt-makes prints any lenvth."w York and London. SENECA FALLS MFG. 1\[0(. Only pel'feet small motor made. in. Try One. (I'or sale everywhere. Don't take the side shows and miss the main show i the big tent. CO. HOLTZER-CABOT GAS ENGINE JUMP SPARK and M., 2109 North Ninth St. 695 Water Street, Seneca Falls, Y. DE P'T , /"'K'# TAPES AND RULES ARE THE BEST.water pres­ sure; lbs. STAI-:'RETT CO. State your requirement\> and get our adVIse. For sale uno Co• Inc. The cost of charging current, and hence also the ef· ficiency its recovery the discharge circuit, minor part the total ex· pense operating the vehicle and the low electrical efficiency the battery s offset its extremely light weight­ which 'not only lightens the construction of the vehicle, but increases the propor· tion "paying load" carried the same -and its ruggedness service. Eight sharp cut­ tmg edges. I TilE J"., L'"