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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, LEIB ST.. Price cents mail. Patents and 11 Paten secured. pipe. 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 O. 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. 695 Water Street, Seneca Falls, Y. W."��;::;;·1J-Neatest, simplest and be,t on Ithe market. MIC . 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. Esb., Athol.. Send for catalo. vehicle manufacturer using the battery reports that charged ex· hausted battery A·4 cellR the rate of 100 amperes for short tin1('. Established 1872. Both free. THE EDISON CONCRETE HOUSE q How constructed. 361 Broadway, New York WHAI ONE MAGNETO OIL ? January 4., Cincinnati, Ohio Fon G NSMITHS. St., 507 Olive Street, St., 50c. Only pel'feet small motor made., 1 Legal Notices IN VENTORS are Invited communicate with Munn o. 'Publishers '1. connection. TOOL MAKERS, EXPER I· M ENTAL PAIR WO ETC. pressure, in. THE POWER CONTRACTOR'S FAVORITE ENGINE. WE LL DRILLING MACHINES Over sizes and 8tyles, for rilling either deep or shallow wells any kind soi rock. Don't take the side shows and miss the main show i the big tent. Yearly subscription, $3. State your requirement\> and get our adVIse.water pres­ sure; lbs. 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. CO. I TilE J". Write/orcatalogue once, mentioning thispaper. /). i\'1ounted on wheels o�· tonl ls. J\dive Ag'ents wanted. in. \-Vorl{s day NigJlt-makes prints any lenvth. Louis, Mo. and states that pays better put over . BORBEIN AUTO CO. 918 Chestnut St. ]8-B. Ours the Oldest agency for securing patents ; it was established over sixty-five years ago., 2109 North Ninth St. Send fOl Catalog I>o. Manufactured the The Ke)Jstone Safety Starling Handle Co. WILLIAMS, BROWN EARLE, Ine.00 SI'JIId tor 232 page catalog No. CO. , concern. ���.ven any inventor furnishing with model sketch and a brief description the device question. LA FAYETTE, IND. Lowest cost because it delivers greatest available power per horse. oxclusively the manufacture 2. For sale uno Co• Inc. Sold all garages, auto supply dealers, hardware and general stores-10c. two cylinder. 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. Sag naw; ich A. Catalog free., Manufacturers, 417 West 15th SI.. ALOE CO. The Sebastian Lathe Co•• 120 Culvert SI.l:ulC>. regard to securing valid patent protpction for their in­ v Trade-:llarks and CopyrightM registered. The element made very com,;;act. ('at nlog free. swin�. M Broadway, New York B ranch Office. BABBITT METALS. 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. Y.r MUNN COMPANY, Inc. CIENTTFTC A:\I ERTCAN Sf' PP1. Please mention the Scientific American when writing- advertisers through wide range, and may far hig]her than would safe with the lead battery., 308 Park St. Easily lucked or released turning handle."w York and London., ROCKFORD, h. 361 roadway, New ork, or 625 Street, Washington, C. Our IIand-Book Patents will sent free on request. THE TEMPLE PUMP CO. Send for Lathe Catalog.,an Supplement 685. 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.. Try One. . The nature the support rna· terials and the method applying the active material the plates enable the cell stand dead short circuits without injury. Strong, sirupie and durable. slow speed, high duty engine. A. MO�M. Louis, Mo.. It will not run out and leave contact points dry. The Express System Saves Money. any battery any time for half the CO'lt bearing of new battery. , 4" Walnut Street, Philadelphia, Pa. "FREE" Write for Catalogue. 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. Price cents.l1lal'. 1). how much it will cost, practical from archi· tecturaI and engineering standpoint ? These and other important questions relating the structure are discussed good, thorough. Sent FREE" A.. A E-For Sixty Ye:m' the Standard the WOJ'ld for Quality. Ball­ bearing, safety starting handles for all makes cars., Chicago, This our 58th year. ''''ashing . 625 Wash . ]6. four cylinder. Arrane-ed for Steam or Foot Power, Velocipede or Stand-up rrreadle. 1492-4 in.• 46 "St " Foot aml ar Power Screw Cutting Au��t LathesFOR FINE, ACCURATE WORK Send for Catalogue B.!!!_ and B K TYPES FOR MARINE AUTOMOBILE and STA· TIONARY ENGINES SEND FOR LAT EST BULLETIN 557 THE flOLTZER-CABOT ELECTRIC CO. l3-in. For user:" Blue Print Paper pply Lanting Machines for making blue print paper linen. 1\[0(. 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. 3 One contains carbon residue, foreign matter, acid, impurities like all cylinder (mineral) oils. Ruby St. Let explain. Send for our Special Offer ! ------ ------ --- fiutomobile Running Gears WITH PRESSED STEEL ANGLE IRON FRAMES Also all styles bodies. SENECA FALLS MFG. - Every User Blue Prints Should Investigate the New EXPRESS System Blue Printing Automatic, saves half the cost., and all newsdeal ers. HOLTZER-CABOT GAS ENGINE JUMP SPARK and M. STAI-:'RETT 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)� $2.00. Don't scoff. S ENTI AME RICAN A ttache(J sny water faucet will deyelop lip to according: s i ze pipe and W:ltB!' pre!;,�llre.cyc1e motorS. DE P'T , /"'K'# TAPES AND RULES ARE THE BEST. with provision for circulation elec. Senel )'onr water pres;;nre and silt supply pipe.01' for Mechanics find Tradesmen. D WAT MOTOR . Improved bucket wheel construction. -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.L, Write for Free Sample Manufactured by T Y C CO. BAR ., Port Washington, Wis. THE SEBASTIAN IS-INCH ENGINE LATHE HIGH GRADE LOW PRICE Automobile Builders. Net price $5, cas witlt orrle-l'. water during long periods the life t>f the cell.. Any mechanic can opprat e them easi Send for eatalol!. Order yonI' motor hom dealer from us., Dept., Philadelphia, Pa. trolyte because the latter constant, chemically, electrically and physically. Garages, Repair and General Jobbing Shops find this the ideal lathe for their work. A Free Opinion the probable patenta­ bility iTlventi�n will readily gi. a ONE OIL COMPANY, BROADWAY, New York City. each ' brought in- Istantly into u,e bal joint . Order from your newsdealer from .50, cnsh with or­ d(·r. l\Ionev b:lcl;; for allY reason. In charging, the rate can varied 3 One not too heavy-will positively not gum clog, collect dust dirt, harden dry out. sYz single cylinder. Eight sharp cut­ tmg edges.blisbed 18IiO-ALOl<: Civil Engineering and Surveying Instruments DRA WING MATERIALS SIJPPLIES B . (I'or sale everywhere. 1 for complete catalog today••teU8 all about how these high grade lilotors are built tbe largost plant the world devoted. With engines llorse powerR. engine made has wide range use. All communications are strictly confidential.-SIX IMPORTA� T formulas. One boy does the work four men. illustrated article published in Scientific meric. EMEXT 23. Write once for generous sample bottle and Magneto Bulletin. PRICE 11<1. Scale drawings of mac hine, construction details, subscribers' forum. WilliAMS BROS Ithaca. makes Blue Prints, Black Prints and Brown Prints. The Bible ofthe aero enthusiast, experi­ menter, builder, aviator and advertiser. From 9-in. CRAY MOTOR CO. bottles..iliu(', in. Accepted the authority. YOU WILL MAKE MISTAKE YOU NOT WRITE FOR INFORMATIQN. pipe, Ibs. GILSON MFG., L'". DETROIT. A. Lowest fuel cost for runs Gasoline, Kerosene- Distillate, Gas Alcohol and has perfect ubrication. 25c