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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Sag naw; ich A. vehicle manufacturer using the battery reports that charged ex· hausted battery A·4 cellR the rate of 100 amperes for short tin1('. 361 Broadway, New York WHAI ONE MAGNETO OIL ? January 4. W. swin�. each ' brought in- Istantly into u,e bal joint . The element made very com,;;act.iliu(', in. STAI-:'RETT CO. 3 One not too light properly lubricate and keep lubricated any bearing (ballbearing ordinary bearing). THE SEBASTIAN IS-INCH ENGINE LATHE HIGH GRADE LOW PRICE Automobile Builders. oxclusively the manufacture 2. Arrane-ed for Steam or Foot Power, Velocipede or Stand-up rrreadle. Eight sharp cut­ tmg edges. Don't take the side shows and miss the main show i the big tent. connection. THE EDISON CONCRETE HOUSE q How constructed. L O. . GILSON MFG."w York and London.cyc1e motorS., 2109 North Ninth St. a ONE OIL COMPANY, BROADWAY, New York City. WILLIAMS, BROWN EARLE, Ine. Any mechanic can opprat e them easi Send for eatalol!. l3-in. ]8-B. 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.r MUNN COMPANY, Inc. -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. Garages, Repair and General Jobbing Shops find this the ideal lathe for their work. Scale drawings of mac hine, construction details, subscribers' forum. , concern.. Strong, sirupie and durable. The nature the support rna· terials and the method applying the active material the plates enable the cell stand dead short circuits without injury."��;::;;·1J-Neatest, simplest and be,t on Ithe market. sYz single cylinder.ven any inventor furnishing with model sketch and a brief description the device question.. Send for Lathe Catalog. Order yonI' motor hom dealer from us. A. CRAY MOTOR CO. Catalog free. Sent FREE" A. pipe, Ibs. The Sebastian Lathe Co•• 120 Culvert SI. Send for our Special Offer ! ------ ------ --- fiutomobile Running Gears WITH PRESSED STEEL ANGLE IRON FRAMES Also all styles bodies. Net price $5, cas witlt orrle-l'.water pres­ sure; lbs. D WAT MOTOR . Manufactured the The Ke)Jstone Safety Starling Handle Co. Patents and 11 Paten secured. Send fOl Catalog I>o. Only pel'feet small motor made. BAR . LA FAYETTE, IND. bottles. A Free Opinion the probable patenta­ bility iTlventi�n will readily gi.l:ulC>.blisbed 18IiO-ALOl<: Civil Engineering and Surveying Instruments DRA WING MATERIALS SIJPPLIES B ., Manufacturers, 417 West 15th SI. "FREE" Write for Catalogue.00 SI'JIId tor 232 page catalog No. l\Ionev b:lcl;; for allY reason. MIC . The Bible ofthe aero enthusiast, experi­ menter, builder, aviator and advertiser. Easily lucked or released turning handle. DE P'T , /"'K'# TAPES AND RULES ARE THE BEST. 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. , 4" Walnut Street, Philadelphia, Pa. Try One. One boy does the work four men. Write once for generous sample bottle and Magneto Bulletin. WilliAMS BROS Ithaca. 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. The Express System Saves Money. J\dive Ag'ents wanted. Our IIand-Book Patents will sent free on request., 1 Legal Notices IN VENTORS are Invited communicate with Munn o., ROCKFORD, h. (I'or sale everywhere. "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. SENECA FALLS MFG. 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. Don't scoff.00.!!!_ and B K TYPES FOR MARINE AUTOMOBILE and STA· TIONARY ENGINES SEND FOR LAT EST BULLETIN 557 THE flOLTZER-CABOT ELECTRIC CO. CO. Louis, Mo.50, cnsh with or­ d(·r., 308 Park St. trolyte because the latter constant, chemically, electrically and physically. slow speed, high duty engine. A E-For Sixty Ye:m' the Standard the WOJ'ld for Quality. Order from your newsdealer from . 'Publishers '1. Senel )'onr water pres;;nre and silt supply pipe. CO. Lowest cost because it delivers greatest available power per horse. WE LL DRILLING MACHINES Over sizes and 8tyles, for rilling either deep or shallow wells any kind soi rock. 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. pipe. Lowest fuel cost for runs Gasoline, Kerosene- Distillate, Gas Alcohol and has perfect ubrication. THE POWER CONTRACTOR'S FAVORITE ENGINE., 50c. S ENTI AME RICAN A ttache(J sny water faucet will deyelop lip to according: s i ze pipe and W:ltB!' pre!;,�llre. Improved bucket wheel construction. 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. Louis, Mo.. how much it will cost, practical from archi· tecturaI and engineering standpoint ? These and other important questions relating the structure are discussed good, thorough. two cylinder., Port Washington, Wis. 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. M Broadway, New York B ranch Office., Chicago, This our 58th year. TOOL MAKERS, EXPER I· M ENTAL PAIR WO ETC. makes Blue Prints, Black Prints and Brown Prints. /). From 9-in. 1\[0(. Send for catalo. BORBEIN AUTO CO. ('at nlog free.-SIX IMPORTA� T formulas. i\'1ounted on wheels o�· tonl ls.,an Supplement 685. MO�M. pressure, in. 695 Water Street, Seneca Falls, Y. 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. THE TEMPLE PUMP CO. Ball­ bearing, safety starting handles for all makes cars. Esb. St. Both free. It will not run out and leave contact points dry. Yearly subscription, $3., Philadelphia, Pa. illustrated article published in Scientific meric. ALOE CO. water during long periods the life t>f the cell. Sold all garages, auto supply dealers, hardware and general stores-10c., Athol. ]6. 1 for complete catalog today••teU8 all about how these high grade lilotors are built tbe largost plant the world devoted., 507 Olive Street, St. CIENTTFTC A:\I ERTCAN Sf' PP1. Price cents. Ruby St. In charging, the rate can varied 3 One not too heavy-will positively not gum clog, collect dust dirt, harden dry out. Price cents mail., Dept., Cincinnati, Ohio Fon G NSMITHS. Accepted the authority. Please mention the Scientific American when writing- advertisers through wide range, and may far hig]her than would safe with the lead battery.. 625 Wash . in., LEIB ST. Write/orcatalogue once, mentioning thispaper. and states that pays better put over . 25c. ���. any battery any time for half the CO'lt bearing of new battery.. BABBITT METALS.. ''''ashing .. PRICE 11<1. 1492-4 in.L, Write for Free Sample Manufactured by T Y C CO., and all newsdeal ers. State your requirement\> and get our adVIse.01' for Mechanics find Tradesmen. Let explain. four cylinder. Ours the Oldest agency for securing patents ; it was established over sixty-five years ago. 3 One contains carbon residue, foreign matter, acid, impurities like all cylinder (mineral) oils. \-Vorl{s day NigJlt-makes prints any lenvth. All communications are strictly confidential. I TilE J". For user:" Blue Print Paper pply Lanting Machines for making blue print paper linen.. Y. EMEXT 23. HOLTZER-CABOT GAS ENGINE JUMP SPARK and M., L'".• 46 "St " Foot aml ar Power Screw Cutting Au��t LathesFOR FINE, ACCURATE WORK Send for Catalogue B. engine made has wide range use. regard to securing valid patent protpction for their in­ v Trade-:llarks and CopyrightM registered. DETROIT. with provision for circulation elec. - Every User Blue Prints Should Investigate the New EXPRESS System Blue Printing Automatic, saves half the cost. 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. 918 Chestnut St. YOU WILL MAKE MISTAKE YOU NOT WRITE FOR INFORMATIQN.l1lal'. 1). A. Established 1872. With engines llorse powerR. 361 roadway, New ork, or 625 Street, Washington, C. 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