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