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