Evening Star Newspaper, June 6, 1926, Page 65

NEW WORM GEAR ELMINATES NOSE Improvement Made for Use in Passenger Cars and Motor Coaches. A fegture of the automobile truck soon may be borrowed by the manu facturers high passenger cars. It is the worm gearing that, has been the boast ¢f the commercidl vehicle for the last The change is evpected sult of the growing demand operation and low-hu ars and of a great deal of development work that has been done on this type o drive. of rade > vears the or silent re Forecast by Detroit Man. This forecast was made by L. R Buckendale of the Timken-Petroit Co. in an address last week at the Summer meeting of the Society of Automotive Engineers, who described | f ive improvement he use in motor-coaches automobiles the worn: the pr worm gear for and passenger In the new type slung beneath th permits the propel . vet gives a grou 1 to that of a corre: axle. With x low prope the engine, and b placed low. which ar the present icle speeds of miles an_how worm under the floor under th omitted an a result under The specd of the modery proved that a v igned tha with the > rise in the e ed lower. As afforded is and motc drive tooth cont v gear sliding bevel ined - he throughout 1 cause there eonsequent lvoseness A worm and worm gear s is ver e backlash t that has motor-coach and is obvio miles. Resists Shocks Easily This 'type of drive is abl shock loads without dan: no displacement occurs th throw the tooth surfaces o As ence b servie f the wor 1 a finished worm can be p srinding. after heat tre; ve heen performed of accuracy it with tooth rate the surfaces o U. S. Rubber. lwaviest buyel erican rubber gonds south of t aquator. In 1924 the shipments of rubber manufactures from the United States amounted to $2.641,0 th 1925 the trade $3.76 xain of Argentina Buys Arge! i and | - j compounds I THE SUNDAY STAR, WASHINGTON, D. C, JUNE 6, R SRR e S (06 unburned gases in the exhaust, incor-| CLEAN BRAKES FIRST. ! CHOOL THAT TRAINED LOCKHART PRODUCED LAUREL RACE STARS Dirt Tracks, Calling for Dauntless Courage and Skill of Highest Type, to Show Best Graduates at | Maryland Speedway. BY F. J. CARMODY. Motor-racing fans in and about the National Capital are promised an exceptional exhibition oi speed, thrills and daring, if the speed kings of | the National Motor Racing Association, in their performances on the Baltimore-Washington Speedway on June 19, live up to the traditions of the masters of the dirt track Should any one doubt the {“dusty circle,” a search into the pace-setting abilities of the stars of the annals of motor racedom will reveal their countless exy the carly racers were men who were largely responsible 1 nt of the automobile. In hazardous road races { they drove under conditions that brought to light many mezhanical weak- ir cars, as well as proved the courage of the drivers From the ranks of dirt track pilots have come some of the best known figures in motor racing history—men, who, on all types of track, | have disregarded all but the utmost in speed when once they had their { motors humming a dizzy pac | Those who the dust laden | courses for the board speedws | the victorious and daring per | there. And the story of the 1 since the Indianupolis into being is filled with in dirt track pilots achieving mon: On the Philadelphia Speed Langhorne, Pa., just inaugu this group pointed the way to 1 exploits in dirt track history. One of their number, Frank Farmel who received fatal injuries shortly his_feat, was clocked at 100 s an hour, or 13 miles above the existing record for the dirt courses. In their anxiety to please motor fans, the speed kings who wear nees ot undying e as the achievements of his forbears was the flash to victory at Indianapolis this vear by Frank Lockha \duate of | the N. M. I. A. insignfa have de- daving | clared that they will drive on the i speed: | Laurel boagds “‘wide open.” Some of efied the veterans of nu- | their number have driven on buard grueling contests on the [ speedways before as well as ou the hoards_ and left n the intrepid | time-honored brick course- at In- eter De Paolo, 1925 speedway cham- | dianapolis. But those whose experl- pion and winner of the 192 Indianap- | ence has heen gained largely on dirt ic, 17 miles behind. have traditions that forecast tre- . “dust eaters” will [ mendous speed and a devil-may-care 1 with recent record-fstyie of pushing the powerful motors mplishments to their { to the utmost. |ance to abraslon as others in which { only new rubber was used, the chem- ! ists report. | “The resistance to - abrasion COST OF TIRE-MAKING, il EXPERTS DECLARE | whia: were found vo siva et jaging properties. In other words, {a tire compound contalning reclaimed | rubber wore as well as the correspond- | in base rubber compound. simply be- In!cause it reured and harder, ntain uniformity | the resuits were considered to he means is the use faulty,” they explain New Rubber 5 Cents. nless a compound containing re. claimed rubber showed practically as good aging qualities as the base rub- | was (Continued from Fifth Page) this attem | the most a }of reclaimed r Artificial rubber has not | develop, ity to compete with the natural product, nor have previ {ous attempts to regenerate new rub- Ver fro e heen success- | ber compotnd when tested for 48 | ful, accordMig to chemists. hours in oxygen under 300 pounds per 9 1imed rubber used in their | inch 60 degrees centigrade, ity ared from black auto- | abrasion was not compared with the The whole tires, with | corresponding compound containing cracked no reclaimed rubber. quaeous sodium hy- |\ jih new rubber at 75 cents per o TAter. | pound and caustic whole tire reclaim ed rubber at 9 cents, the compounds imed rubber than the compound v rubber alone. There. ‘l,,,,“‘.,f',““fi“‘}‘,l:,“‘b‘;}: Len the abrasion is as good poher the reclaimed rubber the latier he | Can be used economically.” | Tests wer de with tread forn veached i a were given by W mew rubbe - | foliows an ultimate e ot| “It has I - cent and a tensile strength|sible to repla 1,300 pounds per square inch can | ber be compounded with new ruisher aimed rubber tionately less new rubber. The prod ' vet been | i de- | anized with a 1 ash nd refincd ound tk wh t there were mar I the desived qual- | ity, could be o ed with the use of | new rubber alc d reclaimed aimed rubt The desired | | he t ultimate | resilient | may the miber of e conclu results ob. tie chemisis as n shown that it tire tread, by 21y greater amowunt « imed rubb without impair- ing the proof of resilience or the resist- ance to abrasion “The method described may garded as replacement of the' new number of approximately the same volume of rubber component in the re- < {ucts thus amenable to replacement | represent important commercial prod- TS, Tire treads in which reclaimed rub- s used showed the same resist- be re- This High Praise Your Guide Advanced Features Oil Filter - Gasoline Filter - Remarkably Fasy Steering - Upholstery in Latest Mode Clear Vision Bodies - Special Vision - Ventilating Windshield - Dash Gawline Gauge - - Heavy, Rigid Crankshait - Special Vibration chined Combustion Chambers. Damper - Ma it $2045. Touring, five-passengor, $1945. Touring. STERRETT & FLEMING, Inc. Champlain St. at Kalorama Road Columbia 5050 Seven-passenger, . {.0.b. Detroit, plus revenue tax. One-piece Stong, Rigid Frame 25 prices £. 0. b. All prices s Home of the Certified Gold Seal Used Cars Note: New Showroom, Connecticut Ave. at S St. . - | claimed rubber, With a change in the erators to balance the loss of quality @ue 1o tho fact that a given volume | ENGINE IS DANGEROUS of old rubber component in the re- | b claimed materfal is not of the same | i 7 quality as « like volume of new rub- | Cutting Off Ignition Puts Strain on v | “Tnasmuch as the same goods made Generator, Which Has No with compounds containing reclaimed " rubber would meet requirements in & Place to Send Current. manner just as satisfactory and at a| Motorists daily lower cost than goods containing only | many of the suggestions formerl new rubber, it would be unfortunate | fared to drivers as good adviee were if large consumers, and particularly | nothing short of the worst sort of mis- the United States Government, should | information. It is not so long #go fail to recognize the proper place of | when drivers were told to switch off reclatmed rubber in specification rub-{ he ignitlon when descending hills to ber g0o convert the engine into a partlal i l‘l‘\fimlm“g selentum is o great all|brake. Soon it was discovered that the tests show. “If instead of vulcan. practice meant risking an exposion of wing with sulphur alone, selenium is ased, there occurs an extraordinary in- creaSe in the resistance to abrasion,” the chemists state. *A comparison of the resistance to abrasion of four coni- pounds at different cures shows that with the aid of selenfum a compound | ||il} containing considerable reclaimed rub- | |f ber hecowmes of greater resistance to | (!l abrasion thar the best compound, | fl! though the former is far poorer with- | || out selenfum. Higher Resistance Obtained. “Selenium therefore offers & means of obtaining a given compound of high- ar resistance to abrasion than has been attainable heretofore, or of obtaining the same resistance with a large ve- duction in percentage of rubber and with a saving in money. Summarizing the results of the ex- periments and the practical conclu-| | sions that may be drawn from them, the veport states | “Reclaimed rubber is of great value in wmaintaining the quality of rubber | || compounds uniform during mark }l fluctuations in the price of rubber. ' || Singe it is inferior in quality to new rubber, however, direct replacement of new rubber by the same welght can not be expected to give the same qual- ity “On the other hand. partial replace ment of new rubber by twice the weight of alkali tive reclaimed rubber, with proper alterations of other in gredients, does not change many use- ful properties of the compound. “In compounds such as tire treads the resistance to abrasion may not be impaired 1f as high as 10 per cent of new rubber is replaced by tire reclaim- ed rubber. A small increase of carbon ack and a decrease in zinc oxide i- multaneously with this introduction of reclaimed rubber is conducive to bet-| | ier wearing qualities and does not in fluence materially the heat copduc tivity. "By comparing rubber compounds of | the same quality with and without re- claimed rubber, it is possible to derive « relation between the cost of rubber and the value of reclaimed rubber. “Only by utllizing such a relation | and altering the relative amounts of new and reclaimed rubber can the | manufacturer maintain the quality of , || his rubber products uniform in the most _economical manner as the price of bber changes. are discovering that of selenium is a great aid defined. Locemobile Model oo $5500 to $7500 With Custom Built Bodies f.0.b. Bridgepore THE AWKINS BE Brougham $2,4; 1926—PART 3. —— e ——————————————py v termed a backfire. Now it {s known tnat there is an other reason why switching off the ignition is bad, and that is hecause it injures the genermtor. With the switch off, and the engine still rotat- ing, the generator produces current re Friendly Warning” Helps. riendly warning” in connection with minor violations of the State mo- tor vehicle law has become a custom in southern Callfornia and is credited with having saved as many motorists from arrest as were prosecuted throughout the State last vear. Ar- rests during 1925 totaled d \.Vhen outstanding superiority and a great name with an aristocratic asso- ciation costs no more than mediocrity, then the proper action seems clearly 35 Coupe $2,415 All Prices Delivered at Washington. THE CONNECTICUT LOCOMOBILE CO. Salesroom 1517 Connecticut Avenue North 962 § T | the brake band may be 100 lose. After This Has Been Done They May Be Adjusted. If an accurate adjustment of the brake bands is sought, the wheels, brakes and brake mechanism should be washed thoroughly. If this is not done the very act of tampering with the brakes will cause particles of dirt to chip off the running gear and fall between the drums and hunds, ! A little dirt can canse a lot of trouble at this point, particularly if its act of lodging where it is not de- ired is only temporary. After it akes out or is otherwise removed, Aomoile Tops Open or Closed Cars Seat Covers and Rugs ’Made to 0:'der I guarantee to e NAVY YARD TOP CO. 9th and M S.E. Lincoln 2181 e iEr $ e :;«3 s Roadster $2,265 Terms if Desired Service Station 1123 18¢h St. N.W. Main 8029 CONOMY? Quantity production methods now make it possible for a greater number of persons to own and drive a car of l.ocomobile standard. Touring $1,925 Model 48, Series 10 $7400t0 $12,000 ‘With Costom Built Bodies f.0.b. Bridgeport AsH] MOTOR CO. Conveniently Located on Fourteenth Street Everywhere within the industry— and among the public which really knows motor cars—the bile Six is spoken of as a definite :fiinmadvance. It is smarter er in action than an six at anywhere near its price. real beauty, too, in line and in finish—a big-value, four-door,com- pletely equipped sedan that looks and performs far above its price. HUPMOBILE 1333-37 14th St. Main 5780 Hupmo- Features of this New Paige fubricated—Pull High. lanced Count Inch n —Sawbl Clutch—Shor GearShift—Co-inci m Bhogisesd Sedan, $1670: Delu: rio 1995¢ Cal $379%) Suburban Standard 1995; Delexe e A A George C. Rice 1601 1'4:!- St. N.W. Alexandria Motor Co. 117 N. Fairfax St., Alexandria, Va. Oll Feed to all Rotating Pn-n: fe— SEE Jainn-lz{n hl‘::hlw‘“dh?eg rings 58 inches long—7 Ine gpnmz—shock Absorbers—6 Balloon Tires—Paige Hy- draulic 4-Wheel Brakes—Easy Ball Bearings Steel, Right Acting row, ‘The New Paige Prices Are: let Roadster, usine, $2245. New-Day Jewett Prices Are: Plzges dkf have multiplied Jf Paige-buile Motor, none more modern nor better -Pressure < k5 gy P el (0 +Ten times as many men and women are seeking this car as ever before aspired to Paige ownership. In the first four months of 1926— nearly three times as many Paige cars were built and actually sold as were sold during the entire year 1925. New thousands see in the latest and finest Paige a sheer downright dollar- for-dollar value precedent. They have searched the market in vain for a car as beautiful to look at and as beautiful to drive—and then they've bought their Paige. WHOLESALE AND RETAIL DISTRIBUTORS Motor Sales and Service Co. 33 New York Ave. N.E, Potomac 772 Caylor-Spaulding Motor Co. Clarendon, Va. Frazier Motor Compan; 318 10th St NE T lrmes An afternoon along Motor Row will definitely show you the reason for this amazing popularity. You simply can’t find another car—at anywhere near $1495--that is as beautiful, as care- fully built of quality materials, with an engine more modern, more efficient or more economical, with finer or more expensive brakes, or with features of vision, comfort, ease of handling and safety so numerous or so satisfying. There isn’t the slightest obligation in asking for a demonstration — when may we bring this car to your door? WASHINGTON-VIRGINIA MOTORS, Inc. - 1522 14th St., Cor. of Church St Open Every Evening Until 9 Logan’s Garage S E Street N.W. M'B:O.Md. !