THE INDIA RUBBER WORLD 



IXOVKMIIER 1, 1915. 



PERSONAL ItENTION. 



I'llwaril I". Moloney has recently taken charge of sales in the 

 New York territory for the Gibney Tire & Rubber Co., of Phila- 

 delphia, as manager of the New York branch. Mr. Moloney was 

 formerly with the Firestone Tire & Rubber Co. as manager of 

 the solid tire department of that company's New York branch. 



G. A. Dodge, mechanical engineer of the Mansfield Tire & 

 Rubber Co., Mansfield, Ohio, has recently been elected a member 

 of the Society of .Xutomobilc luigineers. 



M. H. Parsons, formerly with the Goodyear Tire & Rubber 

 Co., has accepted the position of district sales manager for the 

 McGraw Tire & Rubber Co., of East Palestine, Ohio. 



Elno H. Trump, formerly superintendent of The Quality Tire 

 & Rubber Co., of Hartville, Ohio, is now superintendent of the 

 new Sebring Tire & Rubber Co., of Sebring, Ohio, wliich expects 

 to be making tires by February 1, 1916. 



James Couzens recently resigned his position as vice-president 

 and general manager of the Ford Motor Co. and Frank L. Kling- 

 ensmith has been appointed to succeed him. Edsel B. Ford, son 

 of Henry Ford, succeeds Mr. Klingensmith as secretary of the 

 company. 



Mr. G. H. Stonestreet. who for the past three years has 

 been connected with British Goodyear interests, has been 

 appointed manager of the South .African branch of the Good- 

 year Tire & Rubber Co., with headquarters at Capetown. 

 Mr. Stonestreet was formerly connected with The B. F. 

 Goodrich and Continental companies and sailed recently for 

 his new post. 



The Knight Tire & liubber Co.. of Canton, Ohio, has ap- 

 pointed H. D. Palmer sales representative in New York State 

 territory, in place of E. J. Coniif, who resigned. 



A NEW "TROUBLE-PEOOr' TIRE. 



A aew automobile tire, made by the Leather Tire Goods 

 Co., Niagara Falls, New York, is built with a strip of chrome 

 tanned leather placed inside the casing next to the inner tube 

 and protecting the latter from nails, pieces of glass and similar 

 hard objects that may conic through the tread of the tire 

 where most punctures occur. It is also claimed that when 

 the casing is badly worn the leather will prevent it from 

 blowing-out. 



PERFECTION ASBESTOS FABRIC TIRES. 



.■\ new tire, guaranteed to be proof against puncture, l)low-out. 

 heat, water and grease, is to be presently placed on the market 

 by a company in Fort Madison, Iowa. The peculiarity of the 

 "Perfection" tire — as it is branded — is that a fabric made of woven 

 asbestos takes the place of the usual Sea Island cotton fabric. 

 Its breaker strip is wo\en from asbestos-covered wire. 



TIBE TREAD WEAR. 



An item of tread wear not commonly recognized is sliding 

 friction. P. W. Litchfield, of the Goodyear Tire & Rubber Co,, 

 defines this as the friction between the tire and the ground due 

 to surface motion of the tread. .As the tire surface is doubly 

 curved, flattening it against the ground involves a certain amount 

 of surface distortion. When this distortion is transferred from 

 nne part of the tread to another, a continuous sliding friction is 

 (.reduced. 



NO WONDER THE TIRES ARE STRONG. 



A STORY told by pictures is niucli more impressive than 

 a story told by words. For instance, the Goodrich 

 company, describing the cable cords which form the body of 

 the Silvertown cord tires, speaks as follows: 



"With 144 strands of cotton thread made from long fibered 

 Sea Lsland Cotton, each one impregnated with rubber which 

 has literally been drive.! into it, and then cabled together 



and again impregnated with rubber, each cord which goes 

 into a Silvertown is capal)le of standing approximately 250 

 pounds of straiAl't tensile pull." 



That is a good description, brief and intelligible; but one 

 really gets a better idea of the strength of this cord by look- 

 ing at the accompanying illustration, which shows a stoci 

 gentleman, said to weiyh IQf) pounds— and lu ceri mily looks it 

 — sustaining his w\\n]v weight by a sin^li SiKtrti i LOrd 



A Single Siiakktow \ 

 It might be added that 



190-Pound Man. 



ilructing the tires these cords 

 are laid across the tread at an angle of 45 degrees. One layer 

 is placed above the other at an angle of 90 degrees. Two 

 of these layers constitute the carcass of the tire, on top of 

 which are laid a cushion drum. I.reakcr strip, and tlie tread 

 rubber. 



CORD TIRES AT THE ASTOR CUP RACE. 



The Astor Cup Race held October 9 at tlie Sheepshead I'.ay 

 Motor Speedway, near New York City, was a notable triumph 

 for American built automobiles and American tires. The dis- 

 tance, 350 miles, was co\ ered by the winner in 3 hours 24 minutes 

 42 seconds — an average speed of 102 miles per hour — and the 

 second car finished within 90 seconds of the winner. Only six 

 cars finished, and out of these six the first five were American 

 machines equipped with (joodricli Silvertown Cord tires. In 

 fact the sixth car at the linish — a French Delage — was also run- 

 ning on "Silvertowns," and averaged better than 84 miles per 

 hour. 



In reading these figures few realize the tremendous strain 

 such terrific sustained siieeifs ini|)ose upon rubtier tires. I'.ut in 

 spite of the terrible grind only ten tires were changed during the 

 entire race. Of these, nine were on right, or outside wheels ; the 

 only left tire changed being replaced as a measure of prudence 

 because it appeared dangerously worn. The winning car 

 covered the distance ..f the race without a single tire being 

 changed. 



