Scientific American 1941

| Kategorie: Časopis  | Tento dokument chci!

Thomas A. Edison's Latest Invention A Storage Battery Designed and Constructed from the Automobile User's Point of View ...

Strana 4 z 5

Vámi hledaný text obsahuje tato stránku dokumentu který není autorem určen k veřejnému šíření.

Jak získat tento dokument?






Poznámky redaktora
625 Wash . and states that pays better put over . The nature the support rna· terials and the method applying the active material the plates enable the cell stand dead short circuits without injury. 1).!!!_ and B K TYPES FOR MARINE AUTOMOBILE and STA· TIONARY ENGINES SEND FOR LAT EST BULLETIN 557 THE flOLTZER-CABOT ELECTRIC CO., 2109 North Ninth St. ]6. Y. -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. Send fOl Catalog I>o. 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 element made very com,;;act. Improved bucket wheel construction. 918 Chestnut St. Garages, Repair and General Jobbing Shops find this the ideal lathe for their work. A Free Opinion the probable patenta­ bility iTlventi�n will readily gi. swin�. For user:" Blue Print Paper pply Lanting Machines for making blue print paper linen. Order from your newsdealer from ., LEIB ST. J\dive Ag'ents wanted. Manufactured the The Ke)Jstone Safety Starling Handle Co.. 361 Broadway, New York WHAI ONE MAGNETO OIL ? January 4. Don't scoff. St. D WAT MOTOR . Please mention the Scientific American when writing- advertisers through wide range, and may far hig]her than would safe with the lead battery. CO.blisbed 18IiO-ALOl<: Civil Engineering and Surveying Instruments DRA WING MATERIALS SIJPPLIES B . GILSON MFG. 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. Louis, Mo. 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. slow speed, high duty engine. 3 One not too light properly lubricate and keep lubricated any bearing (ballbearing ordinary bearing). a ONE OIL COMPANY, BROADWAY, New York City. , concern. trolyte because the latter constant, chemically, electrically and physically. Send for Lathe Catalog. WilliAMS BROS Ithaca., Chicago, This our 58th year.. Let explain. engine made has wide range use. BABBITT METALS., 507 Olive Street, St. Only pel'feet small motor made. DE P'T , /"'K'# TAPES AND RULES ARE THE BEST.l1lal'. M Broadway, New York B ranch Office. makes Blue Prints, Black Prints and Brown Prints."w York and London. Ours the Oldest agency for securing patents ; it was established over sixty-five years ago., Port Washington, Wis.l:ulC>. I TilE J". (I'or sale everywhere. Sag naw; ich A."��;::;;·1J-Neatest, simplest and be,t on Ithe market. oxclusively the manufacture 2. The Sebastian Lathe Co•• 120 Culvert SI. WILLIAMS, BROWN EARLE, Ine. Write once for generous sample bottle and Magneto Bulletin.00. vehicle manufacturer using the battery reports that charged ex· hausted battery A·4 cellR the rate of 100 amperes for short tin1('. PRICE 11<1. THE EDISON CONCRETE HOUSE q How constructed. Ball­ bearing, safety starting handles for all makes cars. CRAY MOTOR CO. THE SEBASTIAN IS-INCH ENGINE LATHE HIGH GRADE LOW PRICE Automobile Builders. - Every User Blue Prints Should Investigate the New EXPRESS System Blue Printing Automatic, saves half the cost. /). each ' brought in- Istantly into u,e bal joint . four cylinder., Philadelphia, Pa. Yearly subscription, $3. Sold all garages, auto supply dealers, hardware and general stores-10c. Scale drawings of mac hine, construction details, subscribers' forum. Try One. , 4" Walnut Street, Philadelphia, Pa., Cincinnati, Ohio Fon G NSMITHS. in., Manufacturers, 417 West 15th SI. pipe., 50c. MO�M. Net price $5, cas witlt orrle-l'.00 SI'JIId tor 232 page catalog No.water pres­ sure; lbs. Send for catalo. two cylinder. water during long periods the life t>f the cell. EMEXT 23. 1 for complete catalog today••teU8 all about how these high grade lilotors are built tbe largost plant the world devoted. Lowest fuel cost for runs Gasoline, Kerosene- Distillate, Gas Alcohol and has perfect ubrication. any battery any time for half the CO'lt bearing of new battery. how much it will cost, practical from archi· tecturaI and engineering standpoint ? These and other important questions relating the structure are discussed good, thorough. CIENTTFTC A:\I ERTCAN Sf' PP1. The Bible ofthe aero enthusiast, experi­ menter, builder, aviator and advertiser. 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. 25c. Eight sharp cut­ tmg edges. bottles. STAI-:'RETT CO. 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., Athol.. Send for our Special Offer ! ------ ------ --- fiutomobile Running Gears WITH PRESSED STEEL ANGLE IRON FRAMES Also all styles bodies. Any mechanic can opprat e them easi Send for eatalol!. THE POWER CONTRACTOR'S FAVORITE ENGINE. 695 Water Street, Seneca Falls, Y.• 46 "St " Foot aml ar Power Screw Cutting Au��t LathesFOR FINE, ACCURATE WORK Send for Catalogue B. pipe, Ibs.L, Write for Free Sample Manufactured by T Y C CO., ROCKFORD, h. ., and all newsdeal ers. Order yonI' motor hom dealer from us. SENECA FALLS MFG. S ENTI AME RICAN A ttache(J sny water faucet will deyelop lip to according: s i ze pipe and W:ltB!' pre!;,�llre. LA FAYETTE, IND.. L O. Both free. Write/orcatalogue once, mentioning thispaper. "FREE" Write for Catalogue. 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. A. 3 One contains carbon residue, foreign matter, acid, impurities like all cylinder (mineral) oils., L'". 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. with provision for circulation elec. 361 roadway, New ork, or 625 Street, Washington, C.,an Supplement 685. Arrane-ed for Steam or Foot Power, Velocipede or Stand-up rrreadle.01' for Mechanics find Tradesmen. Esb. 'Publishers '1. TOOL MAKERS, EXPER I· M ENTAL PAIR WO ETC. Louis, Mo. A.-SIX IMPORTA� T formulas. In charging, the rate can varied 3 One not too heavy-will positively not gum clog, collect dust dirt, harden dry out.. For sale uno Co• Inc. Our IIand-Book Patents will sent free on request. Senel )'onr water pres;;nre and silt supply pipe. THE TEMPLE PUMP CO. YOU WILL MAKE MISTAKE YOU NOT WRITE FOR INFORMATIQN. Lowest cost because it delivers greatest available power per horse. ALOE CO. W. CO., 308 Park St. A E-For Sixty Ye:m' the Standard the WOJ'ld for Quality. Price cents mail. DETROIT. Ruby St. \-Vorl{s day NigJlt-makes prints any lenvth. HOLTZER-CABOT GAS ENGINE JUMP SPARK and M. 1\[0(. regard to securing valid patent protpction for their in­ v Trade-:llarks and CopyrightM registered. Accepted the authority. ''''ashing . Price cents. Catalog free. MIC . i\'1ounted on wheels o�· tonl ls..ven any inventor furnishing with model sketch and a brief description the device question.cyc1e motorS. 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. From 9-in. l3-in. Sent FREE" A. One boy does the work four men. illustrated article published in Scientific meric. 1492-4 in. Easily lucked or released turning handle. ���. ('at nlog free. pressure, in. "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. It will not run out and leave contact points dry. With engines llorse powerR.., Dept. ]8-B. Patents and 11 Paten secured. connection. 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.iliu(', in. Strong, sirupie and durable. Don't take the side shows and miss the main show i the big tent. BORBEIN AUTO CO. l\Ionev b:lcl;; for allY reason. 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)� $2.50, cnsh with or­ d(·r. BAR .r MUNN COMPANY, Inc. All communications are strictly confidential. sYz single cylinder. State your requirement\> and get our adVIse. Established 1872., 1 Legal Notices IN VENTORS are Invited communicate with Munn o.. The Express System Saves Money. WE LL DRILLING MACHINES Over sizes and 8tyles, for rilling either deep or shallow wells any kind soi rock