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