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