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