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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Try One. 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. with provision for circulation elec. For user:" Blue Print Paper pply Lanting Machines for making blue print paper linen. DETROIT. 918 Chestnut St. Louis, Mo. Senel )'onr water pres;;nre and silt supply pipe.00 SI'JIId tor 232 page catalog No. Order yonI' motor hom dealer from us. any battery any time for half the CO'lt bearing of new battery. 1).!!!_ and B K TYPES FOR MARINE AUTOMOBILE and STA· TIONARY ENGINES SEND FOR LAT EST BULLETIN 557 THE flOLTZER-CABOT ELECTRIC CO. Both free. WILLIAMS, BROWN EARLE, Ine. \-Vorl{s day NigJlt-makes prints any lenvth. in. ('at nlog free. 1492-4 in. trolyte because the latter constant, chemically, electrically and physically. CO.l1lal'. The element made very com,;;act. pressure, in."��;::;;·1J-Neatest, simplest and be,t on Ithe market. Y. YOU WILL MAKE MISTAKE YOU NOT WRITE FOR INFORMATIQN. THE POWER CONTRACTOR'S FAVORITE ENGINE. i\'1ounted on wheels o�· tonl ls. State your requirement\> and get our adVIse. Ours the Oldest agency for securing patents ; it was established over sixty-five years ago. Lowest fuel cost for runs Gasoline, Kerosene- Distillate, Gas Alcohol and has perfect ubrication. Eight sharp cut­ tmg edges. Ruby St., 507 Olive Street, St. ALOE CO. oxclusively the manufacture 2. The nature the support rna· terials and the method applying the active material the plates enable the cell stand dead short circuits without injury.. Please mention the Scientific American when writing- advertisers through wide range, and may far hig]her than would safe with the lead battery. M Broadway, New York B ranch Office. Price cents. SENECA FALLS MFG. L O. Lowest cost because it delivers greatest available power per horse. The Sebastian Lathe Co•• 120 Culvert SI. Send for Lathe Catalog. makes Blue Prints, Black Prints and Brown Prints. swin�., and all newsdeal ers. illustrated article published in Scientific meric. 1\[0(., Cincinnati, Ohio Fon G NSMITHS.l:ulC>. - Every User Blue Prints Should Investigate the New EXPRESS System Blue Printing Automatic, saves half the cost. Yearly subscription, $3. Scale drawings of mac hine, construction details, subscribers' forum. EMEXT 23. each ' brought in- Istantly into u,e bal joint . Manufactured the The Ke)Jstone Safety Starling Handle Co. 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. and states that pays better put over .ven any inventor furnishing with model sketch and a brief description the device question.water pres­ sure; lbs., Chicago, This our 58th year. regard to securing valid patent protpction for their in­ v Trade-:llarks and CopyrightM registered. S ENTI AME RICAN A ttache(J sny water faucet will deyelop lip to according: s i ze pipe and W:ltB!' pre!;,�llre., Manufacturers, 417 West 15th SI. -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. pipe, Ibs. A E-For Sixty Ye:m' the Standard the WOJ'ld for Quality. vehicle manufacturer using the battery reports that charged ex· hausted battery A·4 cellR the rate of 100 amperes for short tin1('. THE TEMPLE PUMP CO.. Garages, Repair and General Jobbing Shops find this the ideal lathe for their work.r MUNN COMPANY, Inc. /). Send fOl Catalog I>o..00. In charging, the rate can varied 3 One not too heavy-will positively not gum clog, collect dust dirt, harden dry out. 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.blisbed 18IiO-ALOl<: Civil Engineering and Surveying Instruments DRA WING MATERIALS SIJPPLIES B . The Express System Saves Money. HOLTZER-CABOT GAS ENGINE JUMP SPARK and M. Write/orcatalogue once, mentioning thispaper. J\dive Ag'ents wanted. CRAY MOTOR CO. WE LL DRILLING MACHINES Over sizes and 8tyles, for rilling either deep or shallow wells any kind soi rock. a ONE OIL COMPANY, BROADWAY, New York City. Ball­ bearing, safety starting handles for all makes cars.L, Write for Free Sample Manufactured by T Y C CO. MO�M. 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. "FREE" Write for Catalogue. Accepted the authority. 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. WilliAMS BROS Ithaca., Port Washington, Wis. 625 Wash ., Philadelphia, Pa. CO. Send for our Special Offer ! ------ ------ --- fiutomobile Running Gears WITH PRESSED STEEL ANGLE IRON FRAMES Also all styles bodies.• 46 "St " Foot aml ar Power Screw Cutting Au��t LathesFOR FINE, ACCURATE WORK Send for Catalogue B. l3-in., L'".. 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. For sale uno Co• Inc. Established 1872. 361 roadway, New ork, or 625 Street, Washington, C., 2109 North Ninth St. 'Publishers '1. Patents and 11 Paten secured. PRICE 11<1. Any mechanic can opprat e them easi Send for eatalol!., 1 Legal Notices IN VENTORS are Invited communicate with Munn o. Strong, sirupie and durable. All communications are strictly confidential. 361 Broadway, New York WHAI ONE MAGNETO OIL ? January 4. 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. 25c. MIC . BAR . STAI-:'RETT CO. 3 One contains carbon residue, foreign matter, acid, impurities like all cylinder (mineral) oils. , 4" Walnut Street, Philadelphia, Pa. Improved bucket wheel construction. Easily lucked or released turning handle. LA FAYETTE, IND. Order from your newsdealer from . pipe. Send for catalo. A. slow speed, high duty engine. , concern. THE EDISON CONCRETE HOUSE q How constructed., Dept. TOOL MAKERS, EXPER I· M ENTAL PAIR WO ETC.-SIX IMPORTA� T formulas. Let explain.. engine made has wide range use. A Free Opinion the probable patenta­ bility iTlventi�n will readily gi. Catalog free. W. CIENTTFTC A:\I ERTCAN Sf' PP1. four cylinder. bottles. Our IIand-Book Patents will sent free on request. THE SEBASTIAN IS-INCH ENGINE LATHE HIGH GRADE LOW PRICE Automobile Builders. It will not run out and leave contact points dry. ���. Don't take the side shows and miss the main show i the big tent. One boy does the work four men. From 9-in. 695 Water Street, Seneca Falls, Y. I TilE J". Sold all garages, auto supply dealers, hardware and general stores-10c. With engines llorse powerR. Sent FREE" A.50, cnsh with or­ d(·r. DE P'T , /"'K'# TAPES AND RULES ARE THE BEST. Don't scoff., 308 Park St. connection. Only pel'feet small motor made., ROCKFORD, h. St. Net price $5, cas witlt orrle-l'. how much it will cost, practical from archi· tecturaI and engineering standpoint ? These and other important questions relating the structure are discussed good, thorough. Price cents mail. The cost of charging current, and hence also the ef· ficiency its recovery the discharge circuit, minor part the total ex· pense operating the vehicle and the low electrical efficiency the battery s offset its extremely light weight­ which 'not only lightens the construction of the vehicle, but increases the propor· tion "paying load" carried the same -and its ruggedness service. ''''ashing . (I'or sale everywhere. BABBITT METALS.,an Supplement 685. l\Ionev b:lcl;; for allY reason.. BORBEIN AUTO CO.. "Boosting charges"-given a vehicle battery when partially dis· charged, carry through a longer _period than its prescribed day's work-may given for hour's run at a rate two three times the normal charging rate and regular charge may be completed hurry starting at a high rate and gradually dpcreasing the rate. Starts easier and quicker than any other eng:ine, occupies less space, is ess cum bersome, with less vibration, therefore adapting for either stationary, portable traction use. 3 One not too light properly lubricate and keep lubricated any bearing (ballbearing ordinary bearing). Arrane-ed for Steam or Foot Power, Velocipede or Stand-up rrreadle. sYz single cylinder. 1 for complete catalog today••teU8 all about how these high grade lilotors are built tbe largost plant the world devoted., 50c. ]8-B. The Bible ofthe aero enthusiast, experi­ menter, builder, aviator and advertiser. Esb. A. BIotor for grmding, polishing, fans, sewing mtwhines for Doctors, Dl'ntists, Urn;!' �:)��:Il��l�d;�lfe!�$e;:'����f9���ei�� i �:�· tor and pulle:v 'olll)� $2. ]6. water during long periods the life t>f the cell. GILSON MFG. Sag naw; ich A., LEIB ST.01' for Mechanics find Tradesmen.iliu(', in. two cylinder., Athol. D WAT MOTOR . Louis, Mo.cyc1e motorS."w York and London