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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, Port Washington, Wis. Price cents mail., 2109 North Ninth St. The Sebastian Lathe Co•• 120 Culvert SI. Y. CRAY MOTOR CO. The Express System Saves Money. a ONE OIL COMPANY, BROADWAY, New York City. any battery any time for half the CO'lt bearing of new battery. S ENTI AME RICAN A ttache(J sny water faucet will deyelop lip to according: s i ze pipe and W:ltB!' pre!;,�llre. illustrated article published in Scientific meric.. M Broadway, New York B ranch Office. (I'or sale everywhere. 3 One not too light properly lubricate and keep lubricated any bearing (ballbearing ordinary bearing). 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.blisbed 18IiO-ALOl<: Civil Engineering and Surveying Instruments DRA WING MATERIALS SIJPPLIES B . Ball­ bearing, safety starting handles for all makes cars. ]6. Only pel'feet small motor made. Price cents. vehicle manufacturer using the battery reports that charged ex· hausted battery A·4 cellR the rate of 100 amperes for short tin1('. two cylinder. Lowest cost because it delivers greatest available power per horse., LEIB ST., Chicago, This our 58th year. Send for catalo. PRICE 11<1. 3 One contains carbon residue, foreign matter, acid, impurities like all cylinder (mineral) oils. 918 Chestnut St. Manufactured the The Ke)Jstone Safety Starling Handle Co. MO�M.,an Supplement 685. One boy does the work four men. Accepted the authority. 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. "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. l\Ionev b:lcl;; for allY reason. i\'1ounted on wheels o�· tonl ls. Order yonI' motor hom dealer from us. pressure, in. Write/orcatalogue once, mentioning thispaper. A. State your requirement\> and get our adVIse.., 50c. L O. BORBEIN AUTO CO. oxclusively the manufacture 2.cyc1e motorS. Louis, Mo. All communications are strictly confidential. The Bible ofthe aero enthusiast, experi­ menter, builder, aviator and advertiser. 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. 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. \-Vorl{s day NigJlt-makes prints any lenvth., 507 Olive Street, St. With engines llorse powerR. ''''ashing . Order from your newsdealer from . Ours the Oldest agency for securing patents ; it was established over sixty-five years ago. water during long periods the life t>f the cell. From 9-in. pipe, Ibs., Manufacturers, 417 West 15th SI., and all newsdeal ers., Philadelphia, Pa.!!!_ and B K TYPES FOR MARINE AUTOMOBILE and STA· TIONARY ENGINES SEND FOR LAT EST BULLETIN 557 THE flOLTZER-CABOT ELECTRIC CO. Senel )'onr water pres;;nre and silt supply pipe. pipe. ]8-B.00. 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. 25c.r MUNN COMPANY, Inc. each ' brought in- Istantly into u,e bal joint . J\dive Ag'ents wanted. engine made has wide range use. Established 1872.. For user:" Blue Print Paper pply Lanting Machines for making blue print paper linen. Let explain. Improved bucket wheel construction. Try One. Please mention the Scientific American when writing- advertisers through wide range, and may far hig]her than would safe with the lead battery.l1lal'. with provision for circulation elec. ALOE CO.• 46 "St " Foot aml ar Power Screw Cutting Au��t LathesFOR FINE, ACCURATE WORK Send for Catalogue B. Yearly subscription, $3.. bottles. Scale drawings of mac hine, construction details, subscribers' forum. BABBITT METALS. The nature the support rna· terials and the method applying the active material the plates enable the cell stand dead short circuits without injury. STAI-:'RETT CO. A E-For Sixty Ye:m' the Standard the WOJ'ld for Quality. GILSON MFG., 308 Park St. 695 Water Street, Seneca Falls, Y. DETROIT. BIotor for grmding, polishing, fans, sewing mtwhines for Doctors, Dl'ntists, Urn;!' �:)��:Il��l�d;�lfe!�$e;:'����f9���ei�� i �:�· tor and pulle:v 'olll)� $2. THE EDISON CONCRETE HOUSE q How constructed. Sold all garages, auto supply dealers, hardware and general stores-10c. 1). Send for Lathe Catalog. Strong, sirupie and durable. 361 Broadway, New York WHAI ONE MAGNETO OIL ? January 4. 'Publishers '1.50, cnsh with or­ d(·r. "FREE" Write for Catalogue. /). A Free Opinion the probable patenta­ bility iTlventi�n will readily gi. l3-in. Don't take the side shows and miss the main show i the big tent. slow speed, high duty engine. Send fOl Catalog I>o. 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. It will not run out and leave contact points dry. Ruby St. and states that pays better put over . Sent FREE" A.L, Write for Free Sample Manufactured by T Y C CO. Esb. THE POWER CONTRACTOR'S FAVORITE ENGINE. BAR . Louis, Mo. For sale uno Co• Inc. .00 SI'JIId tor 232 page catalog No. Sag naw; ich A."��;::;;·1J-Neatest, simplest and be,t on Ithe market. trolyte because the latter constant, chemically, electrically and physically..iliu(', in. Garages, Repair and General Jobbing Shops find this the ideal lathe for their work., L'". Don't scoff. how much it will cost, practical from archi· tecturaI and engineering standpoint ? These and other important questions relating the structure are discussed good, thorough. CO. HOLTZER-CABOT GAS ENGINE JUMP SPARK and M. WILLIAMS, BROWN EARLE, Ine. WE LL DRILLING MACHINES Over sizes and 8tyles, for rilling either deep or shallow wells any kind soi rock. Lowest fuel cost for runs Gasoline, Kerosene- Distillate, Gas Alcohol and has perfect ubrication. DE P'T , /"'K'# TAPES AND RULES ARE THE BEST. SENECA FALLS MFG. Patents and 11 Paten secured. 361 roadway, New ork, or 625 Street, Washington, C. 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. Write once for generous sample bottle and Magneto Bulletin., Athol. sYz single cylinder. LA FAYETTE, IND. In charging, the rate can varied 3 One not too heavy-will positively not gum clog, collect dust dirt, harden dry out. Catalog free. connection. CIENTTFTC A:\I ERTCAN Sf' PP1. I TilE J". ('at nlog free.. YOU WILL MAKE MISTAKE YOU NOT WRITE FOR INFORMATIQN., Cincinnati, Ohio Fon G NSMITHS. 1 for complete catalog today••teU8 all about how these high grade lilotors are built tbe largost plant the world devoted. 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. ���. EMEXT 23. Send for our Special Offer ! ------ ------ --- fiutomobile Running Gears WITH PRESSED STEEL ANGLE IRON FRAMES Also all styles bodies., Dept.l:ulC>. makes Blue Prints, Black Prints and Brown Prints. four cylinder.ven any inventor furnishing with model sketch and a brief description the device question. W. THE TEMPLE PUMP CO. , concern. 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. MIC . 625 Wash . - Every User Blue Prints Should Investigate the New EXPRESS System Blue Printing Automatic, saves half the cost. Net price $5, cas witlt orrle-l'. Easily lucked or released turning handle. A. regard to securing valid patent protpction for their in­ v Trade-:llarks and CopyrightM registered. WilliAMS BROS Ithaca. -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. swin�. Both free.. The element made very com,;;act. THE SEBASTIAN IS-INCH ENGINE LATHE HIGH GRADE LOW PRICE Automobile Builders., ROCKFORD, h. D WAT MOTOR . Any mechanic can opprat e them easi Send for eatalol!. Arrane-ed for Steam or Foot Power, Velocipede or Stand-up rrreadle.-SIX IMPORTA� T formulas.01' for Mechanics find Tradesmen. Our IIand-Book Patents will sent free on request. St.. TOOL MAKERS, EXPER I· M ENTAL PAIR WO ETC."w York and London. , 4" Walnut Street, Philadelphia, Pa.water pres­ sure; lbs. CO. in., 1 Legal Notices IN VENTORS are Invited communicate with Munn o. Eight sharp cut­ tmg edges. 1492-4 in