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