Ai'Rir. I, 1906.] 



THE INDIA RUBBER WORLD 



S33 



though all. The whole is also reinforced by metal binding 

 strips tipon the margins. Underneath the tread, next the 

 tire, is a lining made of fabric, enclosing a layer of granular 

 cork, which serves to prevent heat reaching the tire. This 

 lining forms part and parcel of the protector, which is in one 

 piece. The tread is fastened on the tire by liinged clips, 

 which hook under the rim clinches. This hinge in the clips 

 is a valuable idea in itself, if it is made of rust proof metal. 

 [John E. Caps, inventor, Kansas City, Missouri.] 



THE VOORHKES CONVEYING BELT. 

 AVTRR experimenting for a number of years, Mr. John J. 

 Voorhees has produced and patented a conveyor belt which 

 differs from others, with their surface of soft rubber, in that 

 its outer covering is so arranged that the cotton or other 

 fiber stands on end instead of being laid within the body of 

 the belt in layers. The ends of the fibers project slightly 

 beyond the smooth surface of the rubber, thereby supplying 

 something that takes the greater part of the wear from the 



rubber outer covering and adding greatl}- to the life and 

 utility to the belt. This fabric is vulcanized into the belt, 

 giving it the quality of great resistance to friction, without 

 detracting from its fiexibility. It is claimed also that the 

 belt is much stronger than that made under the old pro- 

 cesses. In one type of the Voorhees belt the vertical fibres 

 are distributed uniformly throughout, while in another the 

 fibers are disposed in clusters which may be as close and of 

 any size as may be desired. These clusters may be formed of 

 individual vertical fibers or flat tapes of fibers wound around 

 to the desired size ; but a substantial part of the fibers must 

 project vertically, so as to take the wear and tear of the sur. 

 f ice friction upon the ends of the fibers. [Voorhees Rubber 

 Manufacturing Co., Jersey City, New Jersey.] 



A NOVEL PNEUMATIC TIRE. 

 A STRIKING novelty that is engaging the attention of many 

 automobilists is the R. «& V. Traction Tread Tire, which has 

 just been brought out. This tire is constructed on lines 

 that are unlike those of an\- other anti skid, and it is claimed 

 that, while as near puncture proof as it is possible for a 

 pneumatic to be, even if a puncture should occur it would be 

 attended bj* no bad consequences. The tire has two distinct 

 features ; (i) a flat tread made of tough rubber, and (2) a double 

 ply interlining of bullet proof cloth. A leather protector 



studded with steel rivets is attached to the tread by means 

 of steel clamps that form a part of the protector itself. The 

 bullet proof cloth is woven in such a manner that even 

 should it be punctured, the wound closes itself, thus allow- 

 ing no air to escape, so that tire repairs while on the road 

 are unnecessary. Mr. John I). Prince, the inventor, and in 

 charge of the New York ofiice, is looking for a suitable fac- 

 tory. [K. & 1'. Traction Tread Tire Co., New York.] 



"GIBRALTAR" PACKING. 

 \Vr have received a neatly got up sample of the "Gibral- 

 tar" black sheet packing, which seems to be an excellent 

 product. It is astonishing how resistant this substance is 

 to all conditions. It is pliant and yielding, extremely tough, 

 and is entirely indifferent to oils, ammonia, or alkalies. It 

 is recommended for the most difficult places, where other 

 packings have failed. When used in steam fittings, it will 

 not harden or burn under severe heat, and will not blow out 

 under the highest pressure. It comes in four thicknesses, 

 from ^\, inch to 's inch, and is also furnished in gaskets and 

 rings. [New Jersey Car vSpring and Rubber Co., Jersey City, 

 New Jersey.] 



ROEDDING REPAIR SOLE AND HEEL. 



To the lumberman, rubber boots and shoes are as much a 

 necessity as an a.xe. It is a hard life at best ; but if he can 

 keep his feet dry and 

 warm, a certain meas- 

 ure of comfort is as- 

 sured, no matter if Na- 

 ture is trying to protect her io rests in her own way, by 

 loosing the elements against the woodsman. One great 

 trouble about rubber footwear under all conditions, is the 

 fact that it wears out too easily. A rubber boot or arctic 

 overshoe may be perfectly good, except for a cut or worn 

 place in the sole. To provide for this contingency, a Cana- 

 dian firm is making repair soles and heels, by means of 

 which a rubber boot or shoe can be easily soled by anybody, 

 and made practically as good as new. A special rubber ce- 

 ment is supplied for the purpose. [The Merchants Rubber 

 Co., Limited, Berlin, Ontario.] 



INDIA-RUBBER GOODS IN COMMERCE. 



EXPORTS FROM THE UNITED STATES. 



OFFICIAL statement of values of exports of manufactures 

 of India-rubber and Gutta-percha, for January, 1906, 

 and for the first seven months of five fiscal years, beginning 

 July I, from the treasury department at Washington : 



The revolving rubber heels, after having a great run in Eng- 

 land, have at last reached Germany, and Mr. Gustave Pabst, of 

 Hamburg, is doing quite a business in them. They are also 

 offered by a number of German manufacturers. 



