JcLV 1, 1912.] 



THE INDIA RUBBER WORLD 



503 



hard wear really comes — not on these cup rims — but on the wide 

 reinforced edge of the shoe. When the shoe is lifted from the 

 floor just enough suction is formed by the vacuum-cup to keep 

 the wearer from sliding. The manufacturers make not only the 

 soles all in one piece, but also make soles and heels separate, 

 which are sold to the manufacturers of sporting shoes. [The 

 Flexible Rubber Goods Co., Salisbury, Connecticut.] 



THE "HOCO" TIRE PATCH CLAMP. 



Among some of the new contrivances for mending tires is one 

 called the "Hoco" clamp. It is made of steel, with aluminum 

 tinish, is about 5x8 and weighs 2 

 pounds, therefore is of convenient 

 size to carry around. When clamped 

 upon the inner tube, it forces the 

 cement to the extreme outer edges 

 of the patch wliere it is most needed. 

 It nut only clamps the patch tightly to the inner tube, but also 

 prevents any air bubbles rising, or the edges peeling back. 

 [Montgomery, Ward & Co., Chicago, Illinois.] 



AN AEROPLANE SHOCK ABSORBER. 



It is obvious enough that an aeroplane — from the very nature 

 of its work — is liable at times to hit the ground very hard. To 

 be sure, the ejcperienced aviator usually alights with very httle 

 shock. The amateur, on the other hand, usually strikes the 

 earth with a thud. But even in the hands of an expert the 

 flying machine is Hkely at any time to land very suddenly, and 

 any device that will tend to lessen the shock of the impact is 

 sure of a welcome. The pneumatic tires on the wheels, of course. 



GooDYE.^R Bleriot Type Shock Absorber. 



help materially ; but it has been found by aviators that some 

 additional shock absorber is eminently desirable. 



The Goodyear Tire & Rubber Co. has produced a shock ab- 

 sorber which it called the "Goodyear Bleriot" that has been tried 

 by a number of American monoplanists with satisfactory results. 

 The accompanying cut gives a little idea of its appearance. It is 

 made from 14 to 18 inches in length with a diameter of 1 S-16 

 inch. It is made of such a combination of molded rubber as 

 will give it the greatest strength and elasticity. It is wrapped 

 under tension with a diagonal thread fabric. The aim is to make 

 it tough, durable and capable of standing tremendous shocks. 

 Strong metal clamps securely fastened at each end connect the 

 absorber with the framework. They come in sets of four. 

 Under a load of 300 pounds they will stretch eight inches 

 and have an ultimate stretch of over 200 per cent. [Goodyear 

 Tire and Rubber Co., Akron, Ohio.] 



MOVING STAIRWAYS FOR FACTORIES. 



The primary reason for mentioning this type of escalator is 

 the fact that the hand rail consists of a chain over which is 

 moulded a thick protective covering of rubber. On second 

 thought, there appears another reason for describing it in full^ 

 its adaptability to modern rubber factories. 



Reno Esc.\l.mor. 



These stairways, though not new by any means, are unusual in 

 factories. The one illustrated will carry 7,500 passengers per 

 hour. The cost of operating is extremely small. They are ab- 

 solutely safe and are easily controlled. The moving treads are 

 carried upon anti-friction wheels, and the moving hand-rails, as 

 already mentioned, are steel chains covered with rubber. One 

 of the strongest arguments in favor of moving stairways is that 

 the top floors become as desirable to the worker as any others, 

 and this is of great advantage, as the upper floors are always 

 better lighted and ventilated. The same company which makes 

 these stairways also makes them for the purpose of handling 

 merchandise. [Reno Inclined Elevator Company, New York.] 



INDIA-RUBBER GOODS IN COMMERCE. 



Replete with information for rubber manufacturers : 

 Pearson's "Crude Rubber and Compounding Ingredients." 



Mr. 



EXPORTS FROM THE UNITED STATES. 



OFFICIAL statement of values of exports of manufactures 

 of india-rubber and gutta-percha for the month of April, 

 1912, and the first ten months of five fiscal years, beginning 

 July 1: 



Belting, Boots All 



Months. Packing and Other Tot.^l. 



and Hose. Shoes. Rubber. 



April 1912 $207,890 $90,632 $653,380 $951,902 



July-March 1,710,395 1,232,428 5,330,999 8,273,822 



Total, 1911-12.... $1,918,285 $1,323,060 $5,984,379 $9,225,724 



Total, 1910-11.... 1,742,683 1,894,282 5,198.295 8,835,260 



Total, 1909-10.... 1,580.088 1.593,696 4,082,427 7,256,211 



Total, 1908-09.... 1,225,882 1.139.271 3,165,096 5,530,249 



Total, 1907-08.... 1,141.634 1,365,616 3,122,544 5,629,794 



The above heading "All Other Rubber," for the month of 

 April, 1912. and for the first ten months of the fiscal years, begin- 

 ning with July, include the following details relating to tires : 



For All 



Months. Automobiles. Other. Total. 



.'kpril, 1912 values $194,132 $73,370 $267,502 



July-March 1,869,471 393,920 2,263,391 



Total, 1911-12 $2,063,603 $467,290 $2,530,893 



Total, 1910-11 1,528,136 479,213 2,007,349 



