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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l1lal'. Arrane-ed for Steam or Foot Power, Velocipede or Stand-up rrreadle. Garages, Repair and General Jobbing Shops find this the ideal lathe for their work. vehicle manufacturer using the battery reports that charged ex· hausted battery A·4 cellR the rate of 100 amperes for short tin1('. PRICE 11<1. connection. i\'1ounted on wheels o�· tonl ls. 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.01' for Mechanics find Tradesmen. Patents and 11 Paten secured.00. two cylinder. 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. each ' brought in- Istantly into u,e bal joint . Send for our Special Offer ! ------ ------ --- fiutomobile Running Gears WITH PRESSED STEEL ANGLE IRON FRAMES Also all styles bodies. J\dive Ag'ents wanted. Eight sharp cut­ tmg edges. /).50, cnsh with or­ d(·r.. ]8-B.-SIX IMPORTA� T formulas. Ours the Oldest agency for securing patents ; it was established over sixty-five years ago., Chicago, This our 58th year.l:ulC>. Lowest cost because it delivers greatest available power per horse. From 9-in. Catalog free. illustrated article published in Scientific meric. Write/orcatalogue once, mentioning thispaper.• 46 "St " Foot aml ar Power Screw Cutting Au��t LathesFOR FINE, ACCURATE WORK Send for Catalogue B. any battery any time for half the CO'lt bearing of new battery. Net price $5, cas witlt orrle-l'. ''''ashing .. 1492-4 in. St.cyc1e motorS. swin�., ROCKFORD, h. ('at nlog free. Order from your newsdealer from . Send for Lathe Catalog. The Bible ofthe aero enthusiast, experi­ menter, builder, aviator and advertiser. Write once for generous sample bottle and Magneto Bulletin., LEIB ST. 361 roadway, New ork, or 625 Street, Washington, C. 918 Chestnut St. Only pel'feet small motor made. DE P'T , /"'K'# TAPES AND RULES ARE THE BEST. The Express System Saves Money. CIENTTFTC A:\I ERTCAN Sf' PP1.iliu(', in. engine made has wide range use. oxclusively the manufacture 2. 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. Louis, Mo. Y.L, Write for Free Sample Manufactured by T Y C CO. water during long periods the life t>f the cell. Ball­ bearing, safety starting handles for all makes cars. Don't scoff. 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. A. . 'Publishers '1. CRAY MOTOR CO. 695 Water Street, Seneca Falls, Y. GILSON MFG. (I'or sale everywhere.. pipe. YOU WILL MAKE MISTAKE YOU NOT WRITE FOR INFORMATIQN. 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., Cincinnati, Ohio Fon G NSMITHS. LA FAYETTE, IND. WILLIAMS, BROWN EARLE, Ine. CO. Price cents. DETROIT. Esb.., 50c. Senel )'onr water pres;;nre and silt supply pipe.. Any mechanic can opprat e them easi Send for eatalol!. Yearly subscription, $3. For user:" Blue Print Paper pply Lanting Machines for making blue print paper linen. 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. THE EDISON CONCRETE HOUSE q How constructed. in., and all newsdeal ers. For sale uno Co• Inc.water pres­ sure; lbs. - Every User Blue Prints Should Investigate the New EXPRESS System Blue Printing Automatic, saves half the cost., Manufacturers, 417 West 15th SI. MIC . M Broadway, New York B ranch Office. Both free. regard to securing valid patent protpction for their in­ v Trade-:llarks and CopyrightM registered., Port Washington, Wis. Lowest fuel cost for runs Gasoline, Kerosene- Distillate, Gas Alcohol and has perfect ubrication. 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. pressure, in. Try One., L'". "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., 2109 North Ninth St. HOLTZER-CABOT GAS ENGINE JUMP SPARK and M. 25c. Our IIand-Book Patents will sent free on request. EMEXT 23. STAI-:'RETT CO., 507 Olive Street, St. I TilE J". WilliAMS BROS Ithaca. four cylinder. S ENTI AME RICAN A ttache(J sny water faucet will deyelop lip to according: s i ze pipe and W:ltB!' pre!;,�llre. A E-For Sixty Ye:m' the Standard the WOJ'ld for Quality. Louis, Mo.. Easily lucked or released turning handle.. Send for catalo., Dept. L O. bottles. , 4" Walnut Street, Philadelphia, Pa. 1 for complete catalog today••teU8 all about how these high grade lilotors are built tbe largost plant the world devoted. sYz single cylinder. 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. l\Ionev b:lcl;; for allY reason. A. CO. -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. Sold all garages, auto supply dealers, hardware and general stores-10c. It will not run out and leave contact points dry. The Sebastian Lathe Co•• 120 Culvert SI. Don't take the side shows and miss the main show i the big tent. THE POWER CONTRACTOR'S FAVORITE ENGINE. The element made very com,;;act. A Free Opinion the probable patenta­ bility iTlventi�n will readily gi. 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. 1\[0(. THE SEBASTIAN IS-INCH ENGINE LATHE HIGH GRADE LOW PRICE Automobile Builders. 3 One contains carbon residue, foreign matter, acid, impurities like all cylinder (mineral) oils. Order yonI' motor hom dealer from us.r MUNN COMPANY, Inc. Please mention the Scientific American when writing- advertisers through wide range, and may far hig]her than would safe with the lead battery. and states that pays better put over . BAR . makes Blue Prints, Black Prints and Brown Prints., 308 Park St. Let explain. 1). BABBITT METALS. In charging, the rate can varied 3 One not too heavy-will positively not gum clog, collect dust dirt, harden dry out. WE LL DRILLING MACHINES Over sizes and 8tyles, for rilling either deep or shallow wells any kind soi rock. SENECA FALLS MFG. Manufactured the The Ke)Jstone Safety Starling Handle Co. MO�M. The nature the support rna· terials and the method applying the active material the plates enable the cell stand dead short circuits without injury. , concern. 3 One not too light properly lubricate and keep lubricated any bearing (ballbearing ordinary bearing). l3-in. 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. Ruby St. 625 Wash . Send fOl Catalog I>o., Philadelphia, Pa.,an Supplement 685. ���. Improved bucket wheel construction. a ONE OIL COMPANY, BROADWAY, New York City. Strong, sirupie and durable.ven any inventor furnishing with model sketch and a brief description the device question. pipe, Ibs. Sag naw; ich A. \-Vorl{s day NigJlt-makes prints any lenvth. ALOE CO. W. slow speed, high duty engine. All communications are strictly confidential. ]6.00 SI'JIId tor 232 page catalog No. One boy does the work four men. trolyte because the latter constant, chemically, electrically and physically.!!!_ and B K TYPES FOR MARINE AUTOMOBILE and STA· TIONARY ENGINES SEND FOR LAT EST BULLETIN 557 THE flOLTZER-CABOT ELECTRIC CO. "FREE" Write for Catalogue. Sent FREE" A. BORBEIN AUTO CO."��;::;;·1J-Neatest, simplest and be,t on Ithe market. Price cents mail., 1 Legal Notices IN VENTORS are Invited communicate with Munn o."w York and London. State your requirement\> and get our adVIse. Accepted the authority., Athol. With engines llorse powerR.blisbed 18IiO-ALOl<: Civil Engineering and Surveying Instruments DRA WING MATERIALS SIJPPLIES B .. 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. with provision for circulation elec. Scale drawings of mac hine, construction details, subscribers' forum. D WAT MOTOR . Established 1872