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