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