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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A E-For Sixty Ye:m' the Standard the WOJ'ld for Quality. The Express System Saves Money. l\Ionev b:lcl;; for allY reason. bottles. A Free Opinion the probable patenta­ bility iTlventi�n will readily gi. BORBEIN AUTO CO."��;::;;·1J-Neatest, simplest and be,t on Ithe market. Net price $5, cas witlt orrle-l'., Athol..!!!_ and B K TYPES FOR MARINE AUTOMOBILE and STA· TIONARY ENGINES SEND FOR LAT EST BULLETIN 557 THE flOLTZER-CABOT ELECTRIC CO. 3 One not too light properly lubricate and keep lubricated any bearing (ballbearing ordinary bearing). Send for catalo. Don't scoff. Send fOl Catalog I>o. 3 One contains carbon residue, foreign matter, acid, impurities like all cylinder (mineral) oils. Easily lucked or released turning handle. On account the low voltage the cell, a vehicle battery given voltage must contain larger number cells than a lead battery, twenty-fonr lead cells being equivalent forty the nickel-iron cells of same ampere-hour capacity but the low voltage and comparatively high in· ternal resistance are disadvantageo1ls from the purely electrical rather than the vehicle point view. 361 roadway, New ork, or 625 Street, Washington, C.,an Supplement 685. A. CIENTTFTC A:\I ERTCAN Sf' PP1., 1 Legal Notices IN VENTORS are Invited communicate with Munn o. EMEXT 23., 2109 North Ninth St. ���.iliu(', in. Garages, Repair and General Jobbing Shops find this the ideal lathe for their work. Senel )'onr water pres;;nre and silt supply pipe. BIotor for grmding, polishing, fans, sewing mtwhines for Doctors, Dl'ntists, Urn;!' �:)��:Il��l�d;�lfe!�$e;:'����f9���ei�� i �:�· tor and pulle:v 'olll)� $2.• 46 "St " Foot aml ar Power Screw Cutting Au��t LathesFOR FINE, ACCURATE WORK Send for Catalogue B. J\dive Ag'ents wanted., Port Washington, Wis. ]8-B., Dept. water during long periods the life t>f the cell. ('at nlog free.., Philadelphia, Pa. All communications are strictly confidential. ALOE CO. Try One. , concern.-SIX IMPORTA� T formulas. CO.ven any inventor furnishing with model sketch and a brief description the device question. Esb. Only pel'feet small motor made. Improved bucket wheel construction. a ONE OIL COMPANY, BROADWAY, New York City. LA FAYETTE, IND. WILLIAMS, BROWN EARLE, Ine. swin�.50, cnsh with or­ d(·r. In charging, the rate can varied 3 One not too heavy-will positively not gum clog, collect dust dirt, harden dry out. . A. connection. Any mechanic can opprat e them easi Send for eatalol!. St. Don't take the side shows and miss the main show i the big tent. each ' brought in- Istantly into u,e bal joint . The nature the support rna· terials and the method applying the active material the plates enable the cell stand dead short circuits without injury. WilliAMS BROS Ithaca.. BAR . 695 Water Street, Seneca Falls, Y. regard to securing valid patent protpction for their in­ v Trade-:llarks and CopyrightM registered., L'". 25c. slow speed, high duty engine. MIC . illustrated article published in Scientific meric. vehicle manufacturer using the battery reports that charged ex· hausted battery A·4 cellR the rate of 100 amperes for short tin1('. l3-in. PRICE 11<1.00. The Bible ofthe aero enthusiast, experi­ menter, builder, aviator and advertiser. Manufactured the The Ke)Jstone Safety Starling Handle Co. One boy does the work four men., LEIB ST. Lowest fuel cost for runs Gasoline, Kerosene- Distillate, Gas Alcohol and has perfect ubrication. -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.blisbed 18IiO-ALOl<: Civil Engineering and Surveying Instruments DRA WING MATERIALS SIJPPLIES B . 361 Broadway, New York WHAI ONE MAGNETO OIL ? January 4. THE EDISON CONCRETE HOUSE q How constructed. Let explain. THE POWER CONTRACTOR'S FAVORITE ENGINE. For sale uno Co• Inc. "FREE" Write for Catalogue. BABBITT METALS. THE TEMPLE PUMP 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. Yearly subscription, $3. State your requirement\> and get our adVIse. M Broadway, New York B ranch Office. Order from your newsdealer from . 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.. Please mention the Scientific American when writing- advertisers through wide range, and may far hig]her than would safe with the lead battery. oxclusively the manufacture 2., 308 Park St. pressure, in. Our IIand-Book Patents will sent free on request.water pres­ sure; lbs., Manufacturers, 417 West 15th SI. GILSON MFG. THE SEBASTIAN IS-INCH ENGINE LATHE HIGH GRADE LOW PRICE Automobile Builders.L, Write for Free Sample Manufactured by T Y C CO. /). Sag naw; ich A.r MUNN COMPANY, Inc. , 4" Walnut Street, Philadelphia, Pa.cyc1e motorS.. The Sebastian Lathe Co•• 120 Culvert SI. Sold all garages, auto supply dealers, hardware and general stores-10c. 918 Chestnut St. With engines llorse powerR. DETROIT. Sent FREE" A.00 SI'JIId tor 232 page catalog No., and all newsdeal ers. ]6. SENECA FALLS MFG. CO. For user:" Blue Print Paper pply Lanting Machines for making blue print paper linen. \-Vorl{s day NigJlt-makes prints any lenvth. The element made very com,;;act.l:ulC>. W. I TilE J". (I'or sale everywhere. 625 Wash . trolyte because the latter constant, chemically, electrically and physically. Ball­ bearing, safety starting handles for all makes cars. 'Publishers '1. 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. Write/orcatalogue once, mentioning thispaper. 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. any battery any time for half the CO'lt bearing of new battery. Accepted the authority. From 9-in. D WAT MOTOR ."w York and London., Cincinnati, Ohio Fon G NSMITHS. - Every User Blue Prints Should Investigate the New EXPRESS System Blue Printing Automatic, saves half the cost. Scale drawings of mac hine, construction details, subscribers' forum. and states that pays better put over . 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. Order yonI' motor hom dealer from us. Send for Lathe Catalog. Lowest cost because it delivers greatest available power per horse. 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. Price cents mail. Louis, Mo.l1lal'. 1 for complete catalog today••teU8 all about how these high grade lilotors are built tbe largost plant the world devoted. WE LL DRILLING MACHINES Over sizes and 8tyles, for rilling either deep or shallow wells any kind soi rock. It will not run out and leave contact points dry. pipe. Established 1872. DE P'T , /"'K'# TAPES AND RULES ARE THE BEST. Arrane-ed for Steam or Foot Power, Velocipede or Stand-up rrreadle. YOU WILL MAKE MISTAKE YOU NOT WRITE FOR INFORMATIQN. Send for our Special Offer ! ------ ------ --- fiutomobile Running Gears WITH PRESSED STEEL ANGLE IRON FRAMES Also all styles bodies. engine made has wide range use. Ruby St. Both free. L O. STAI-:'RETT CO. sYz single cylinder. four cylinder. Louis, Mo. Eight sharp cut­ tmg edges., Chicago, This our 58th year. MO�M. ''''ashing . in. i\'1ounted on wheels o�· tonl ls. 1492-4 in. Write once for generous sample bottle and Magneto Bulletin. 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.. pipe, Ibs.. S ENTI AME RICAN A ttache(J sny water faucet will deyelop lip to according: s i ze pipe and W:ltB!' pre!;,�llre. Y. CRAY MOTOR CO. TOOL MAKERS, EXPER I· M ENTAL PAIR WO ETC. Ours the Oldest agency for securing patents ; it was established over sixty-five years ago. how much it will cost, practical from archi· tecturaI and engineering standpoint ? These and other important questions relating the structure are discussed good, thorough. "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. HOLTZER-CABOT GAS ENGINE JUMP SPARK and M. Patents and 11 Paten secured.01' for Mechanics find Tradesmen. 1). two cylinder. Strong, sirupie and durable., 50c., ROCKFORD, h., 507 Olive Street, St. 1\[0(. Catalog free. with provision for circulation elec. 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.. makes Blue Prints, Black Prints and Brown Prints. Price cents