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