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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361 roadway, New ork, or 625 Street, Washington, C. THE EDISON CONCRETE HOUSE q How constructed. For sale uno Co• Inc. 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. CRAY MOTOR CO. and states that pays better put over . S ENTI AME RICAN A ttache(J sny water faucet will deyelop lip to according: s i ze pipe and W:ltB!' pre!;,�llre. Manufactured the The Ke)Jstone Safety Starling Handle Co.!!!_ and B K TYPES FOR MARINE AUTOMOBILE and STA· TIONARY ENGINES SEND FOR LAT EST BULLETIN 557 THE flOLTZER-CABOT ELECTRIC CO.l1lal'. I TilE J". Both free. Scale drawings of mac hine, construction details, subscribers' forum.L, Write for Free Sample Manufactured by T Y C CO. vehicle manufacturer using the battery reports that charged ex· hausted battery A·4 cellR the rate of 100 amperes for short tin1('. Let explain. two cylinder. 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., Dept.r MUNN COMPANY, Inc. 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. 3 One not too light properly lubricate and keep lubricated any bearing (ballbearing ordinary bearing). Try One. swin�. 918 Chestnut St., Port Washington, Wis. Lowest fuel cost for runs Gasoline, Kerosene- Distillate, Gas Alcohol and has perfect ubrication. illustrated article published in Scientific meric. CO.ven any inventor furnishing with model sketch and a brief description the device question. A E-For Sixty Ye:m' the Standard the WOJ'ld for Quality. , 4" Walnut Street, Philadelphia, Pa. , concern.cyc1e motorS.. 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. Esb..blisbed 18IiO-ALOl<: Civil Engineering and Surveying Instruments DRA WING MATERIALS SIJPPLIES B . State your requirement\> and get our adVIse. connection. Senel )'onr water pres;;nre and silt supply pipe. YOU WILL MAKE MISTAKE YOU NOT WRITE FOR INFORMATIQN. sYz single cylinder. 3 One contains carbon residue, foreign matter, acid, impurities like all cylinder (mineral) oils., 1 Legal Notices IN VENTORS are Invited communicate with Munn o. The element made very com,;;act. Patents and 11 Paten secured. Write/orcatalogue once, mentioning thispaper. 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. 695 Water Street, Seneca Falls, Y. Accepted the authority. It will not run out and leave contact points dry. M Broadway, New York B ranch Office.00 SI'JIId tor 232 page catalog No. The Sebastian Lathe Co•• 120 Culvert SI. Established 1872. i\'1ounted on wheels o�· tonl ls. Sag naw; ich A. Send for catalo. MIC . Send fOl Catalog I>o. W.00. PRICE 11<1., Chicago, This our 58th year. Y. engine made has wide range use. slow speed, high duty 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.water pres­ sure; lbs. "FREE" Write for Catalogue.. Price cents. - Every User Blue Prints Should Investigate the New EXPRESS System Blue Printing Automatic, saves half the cost., ROCKFORD, h. Order from your newsdealer from ., 507 Olive Street, St. Order yonI' motor hom dealer from us. SENECA FALLS MFG. (I'or sale everywhere. Sent FREE" A. Strong, sirupie and durable. l\Ionev b:lcl;; for allY reason. 361 Broadway, New York WHAI ONE MAGNETO OIL ? January 4. THE POWER CONTRACTOR'S FAVORITE ENGINE. GILSON MFG.. Send for our Special Offer ! ------ ------ --- fiutomobile Running Gears WITH PRESSED STEEL ANGLE IRON FRAMES Also all styles bodies. CIENTTFTC A:\I ERTCAN Sf' PP1."w York and London.01' for Mechanics find Tradesmen. DETROIT. 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. CO. each ' brought in- Istantly into u,e bal joint . 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.,an Supplement 685. With engines llorse powerR. four cylinder. WilliAMS BROS Ithaca. pipe, Ibs. regard to securing valid patent protpction for their in­ v Trade-:llarks and CopyrightM registered. Arrane-ed for Steam or Foot Power, Velocipede or Stand-up rrreadle. Sold all garages, auto supply dealers, hardware and general stores-10c., 2109 North Ninth St. in. \-Vorl{s day NigJlt-makes prints any lenvth. ]8-B. Catalog free. trolyte because the latter constant, chemically, electrically and physically., L'"., Manufacturers, 417 West 15th SI. A. Louis, Mo. Eight sharp cut­ tmg edges.• 46 "St " Foot aml ar Power Screw Cutting Au��t LathesFOR FINE, ACCURATE WORK Send for Catalogue B. Send for Lathe Catalog., LEIB ST. 1492-4 in. Louis, Mo. 1 for complete catalog today••teU8 all about how these high grade lilotors are built tbe largost plant the world devoted. 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. 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. A. . oxclusively the manufacture 2. Price cents mail. A Free Opinion the probable patenta­ bility iTlventi�n will readily gi. ''''ashing . BABBITT METALS. Our IIand-Book Patents will sent free on request. "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. any battery any time for half the CO'lt bearing of new battery., 50c. ]6.. J\dive Ag'ents wanted. One boy does the work four men. water during long periods the life t>f the cell., Athol., and all newsdeal ers. how much it will cost, practical from archi· tecturaI and engineering standpoint ? These and other important questions relating the structure are discussed good, thorough. ���.l:ulC>. 625 Wash . ALOE CO. Improved bucket wheel construction. BAR .iliu(', in. The Express System Saves Money.. 1). 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. Ruby St., Philadelphia, Pa. BORBEIN AUTO CO. pressure, in. MO�M. bottles. Yearly subscription, $3.. EMEXT 23. Garages, Repair and General Jobbing Shops find this the ideal lathe for their work. Ours the Oldest agency for securing patents ; it was established over sixty-five years ago. Ball­ bearing, safety starting handles for all makes cars. 1\[0(. WILLIAMS, BROWN EARLE, Ine. All communications are strictly confidential. The Bible ofthe aero enthusiast, experi­ menter, builder, aviator and advertiser. -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. In charging, the rate can varied 3 One not too heavy-will positively not gum clog, collect dust dirt, harden dry out. ('at nlog free.-SIX IMPORTA� T formulas. Easily lucked or released turning handle. 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 SEBASTIAN IS-INCH ENGINE LATHE HIGH GRADE LOW PRICE Automobile Builders. Only pel'feet small motor made. a ONE OIL COMPANY, BROADWAY, New York City. /). DE P'T , /"'K'# TAPES AND RULES ARE THE BEST. Don't scoff. St. From 9-in. THE TEMPLE PUMP CO. TOOL MAKERS, EXPER I· M ENTAL PAIR WO ETC."��;::;;·1J-Neatest, simplest and be,t on Ithe market. with provision for circulation elec.. L O. D WAT MOTOR .50, cnsh with or­ d(·r., 308 Park St. Net price $5, cas witlt orrle-l'. pipe. LA FAYETTE, IND. Please mention the Scientific American when writing- advertisers through wide range, and may far hig]her than would safe with the lead battery. 'Publishers '1., Cincinnati, Ohio Fon G NSMITHS. STAI-:'RETT CO. Lowest cost because it delivers greatest available power per horse. Write once for generous sample bottle and Magneto Bulletin. For user:" Blue Print Paper pply Lanting Machines for making blue print paper linen. l3-in. makes Blue Prints, Black Prints and Brown Prints. Any mechanic can opprat e them easi Send for eatalol!. HOLTZER-CABOT GAS ENGINE JUMP SPARK and M. 25c