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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DETROIT. W. Write/orcatalogue once, mentioning thispaper., LEIB ST. , 4" Walnut Street, Philadelphia, Pa. Don't scoff. 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. 1). Lowest cost because it delivers greatest available power per horse., 507 Olive Street, St. pipe, Ibs. 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.• 46 "St " Foot aml ar Power Screw Cutting Au��t LathesFOR FINE, ACCURATE WORK Send for Catalogue B. ''''ashing . water during long periods the life t>f the cell. two cylinder. A. A. WILLIAMS, BROWN EARLE, Ine., and all newsdeal ers. (I'or sale everywhere., Philadelphia, Pa.r MUNN COMPANY, Inc. sYz single cylinder. Garages, Repair and General Jobbing Shops find this the ideal lathe for their work. Send for catalo. L O. 361 Broadway, New York WHAI ONE MAGNETO OIL ? January 4. PRICE 11<1. trolyte because the latter constant, chemically, electrically and physically. D WAT MOTOR .. 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. GILSON MFG. Eight sharp cut­ tmg edges., L'". TOOL MAKERS, EXPER I· M ENTAL PAIR WO ETC. swin�. l3-in. For sale uno Co• Inc. 918 Chestnut St. 1492-4 in. Ours the Oldest agency for securing patents ; it was established over sixty-five years ago. Improved bucket wheel construction. Lowest fuel cost for runs Gasoline, Kerosene- Distillate, Gas Alcohol and has perfect ubrication. Our IIand-Book Patents will sent free on request. bottles. in. LA FAYETTE, IND. pressure, in.. vehicle manufacturer using the battery reports that charged ex· hausted battery A·4 cellR the rate of 100 amperes for short tin1('., Manufacturers, 417 West 15th SI. Ruby St. each ' brought in- Istantly into u,e bal joint . ���. illustrated article published in Scientific meric. Send fOl Catalog I>o. Manufactured the The Ke)Jstone Safety Starling Handle Co. Sold all garages, auto supply dealers, hardware and general stores-10c. A Free Opinion the probable patenta­ bility iTlventi�n will readily gi. Strong, sirupie and durable. J\dive Ag'ents wanted. Net price $5, cas witlt orrle-l'. MIC . 25c. BAR .. The nature the support rna· terials and the method applying the active material the plates enable the cell stand dead short circuits without injury.l1lal'. , concern., 1 Legal Notices IN VENTORS are Invited communicate with Munn o. 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.. Arrane-ed for Steam or Foot Power, Velocipede or Stand-up rrreadle. THE EDISON CONCRETE HOUSE q How constructed. Don't take the side shows and miss the main show i the big tent. Senel )'onr water pres;;nre and silt supply pipe. i\'1ounted on wheels o�· tonl ls. 1 for complete catalog today••teU8 all about how these high grade lilotors are built tbe largost plant the world devoted. Patents and 11 Paten secured. One boy does the work four men. Write once for generous sample bottle and Magneto Bulletin. It will not run out and leave contact points dry. 3 One contains carbon residue, foreign matter, acid, impurities like all cylinder (mineral) oils. HOLTZER-CABOT GAS ENGINE JUMP SPARK and M. 695 Water Street, Seneca Falls, Y. connection. Please mention the Scientific American when writing- advertisers through wide range, and may far hig]her than would safe with the lead battery., Cincinnati, Ohio Fon G NSMITHS. Easily lucked or released turning handle. and states that pays better put over . THE POWER CONTRACTOR'S FAVORITE ENGINE. Both free. Send for Lathe Catalog. any battery any time for half the CO'lt bearing of new battery. Y. EMEXT 23.50, cnsh with or­ d(·r. Louis, Mo. I TilE J". Scale drawings of mac hine, construction details, subscribers' forum. Established 1872. 1\[0(. From 9-in. ]6.00 SI'JIId tor 232 page catalog No., Athol. CRAY MOTOR CO. Only pel'feet small motor made. ('at nlog free., Chicago, This our 58th year. makes Blue Prints, Black Prints and Brown Prints.ven any inventor furnishing with model sketch and a brief description the device question. CO. The Bible ofthe aero enthusiast, experi­ menter, builder, aviator and advertiser."��;::;;·1J-Neatest, simplest and be,t on Ithe market. Esb. CO. Let explain.00.!!!_ 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. regard to securing valid patent protpction for their in­ v Trade-:llarks and CopyrightM registered. Order yonI' motor hom dealer from us. The Sebastian Lathe Co•• 120 Culvert SI. Catalog free. Any mechanic can opprat e them easi Send for eatalol!. "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. 625 Wash . 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. Order from your newsdealer from .cyc1e motorS., 2109 North Ninth St. THE TEMPLE PUMP CO.-SIX IMPORTA� T formulas. WilliAMS BROS Ithaca. Sag naw; ich A. how much it will cost, practical from archi· tecturaI and engineering standpoint ? These and other important questions relating the structure are discussed good, thorough., 308 Park St. In charging, the rate can varied 3 One not too heavy-will positively not gum clog, collect dust dirt, harden dry out. All communications are strictly confidential. - Every User Blue Prints Should Investigate the New EXPRESS System Blue Printing Automatic, saves half the cost.."w York and London. SENECA FALLS MFG. M Broadway, New York B ranch Office. St.. STAI-:'RETT CO. "FREE" Write for Catalogue. engine made has wide range use. THE SEBASTIAN IS-INCH ENGINE LATHE HIGH GRADE LOW PRICE Automobile Builders.l:ulC>. Try One. pipe. MO�M. -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. WE LL DRILLING MACHINES Over sizes and 8tyles, for rilling either deep or shallow wells any kind soi rock. 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. YOU WILL MAKE MISTAKE YOU NOT WRITE FOR INFORMATIQN. /). Price cents mail.,an Supplement 685. slow speed, high duty engine.L, Write for Free Sample Manufactured by T Y C CO. 3 One not too light properly lubricate and keep lubricated any bearing (ballbearing ordinary bearing). ALOE CO. 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. DE P'T , /"'K'# TAPES AND RULES ARE THE BEST.water pres­ sure; lbs. Accepted the authority.. four cylinder. Sent FREE" A. The element made very com,;;act. 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. Ball­ bearing, safety starting handles for all makes cars. S ENTI AME RICAN A ttache(J sny water faucet will deyelop lip to according: s i ze pipe and W:ltB!' pre!;,�llre..blisbed 18IiO-ALOl<: Civil Engineering and Surveying Instruments DRA WING MATERIALS SIJPPLIES B .01' for Mechanics find Tradesmen., Port Washington, Wis. BORBEIN AUTO CO. 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. ]8-B. a ONE OIL COMPANY, BROADWAY, New York City. with provision for circulation elec. State your requirement\> and get our adVIse. Louis, Mo. 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. The Express System Saves Money. ., 50c., ROCKFORD, h. Send for our Special Offer ! ------ ------ --- fiutomobile Running Gears WITH PRESSED STEEL ANGLE IRON FRAMES Also all styles bodies. A E-For Sixty Ye:m' the Standard the WOJ'ld for Quality. \-Vorl{s day NigJlt-makes prints any lenvth. For user:" Blue Print Paper pply Lanting Machines for making blue print paper linen., Dept. BABBITT METALS.iliu(', in. 'Publishers '1. l\Ionev b:lcl;; for allY reason. oxclusively the manufacture 2. With engines llorse powerR. Price cents. CIENTTFTC A:\I ERTCAN Sf' PP1