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