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