202 



THE INDIA RUBBER WORLD 



[January 1, 1917. 



PROCESS PATENTS. 



Elastic Fabric and Process for Its Manufacture. In manu- 

 facturing elastic fabrics for use in making suspenders, masks 

 for protection against asphyxiating gas, etc., the rubber threads 

 are dressed, that is, tightly enclosed in a sheath of fabric. This 

 holds the rubber while it is stretched, in the course of manu- 

 facture, and prevents it from relaxing totally, the object being 

 to give nerve to the rubber. 



In the new process, however, the rubber threads are dressed 

 at the same time the fabric is woven, thus saving the preliminary 

 operation of dressing the rubber threads. 



It consists in forming, with a textile thread, a small chain on 

 a rubber thread, which constitutes the core of the chain. If the 

 rubber thread is more or less stretched during this operation it 

 will have more or less nerve and if several of the chains are 

 disposed side by side, and connected by one or more weft threads, 

 the result will be a fabric that is lengthwise elastic. 



The little chain is shown in the drawing on the left and is 

 made on a passementerie loom of the needle or chainette type. 

 The rubber threads coming from a bobbin pass through holes 

 placed equally distant from one another in a guide-bar in front 

 of the loom. The bar is arranged above the needles and the 

 rubber threads running through it are separated from one an- 

 other by the distance or interval between two consecutive needles. 

 The rubber threads are placed between each needle and the 

 guide-bar and are animated with an even, to and fro movement, 

 which is adjusted so that each rubber thread passes alternately 

 after the formation of a link, to the right and to the left of the 

 corresponding needle. The result is, the chain is formed around 

 each rubber thread and the weft joining the chains to one an- 

 other goes through each of the links of the little chain. 



As each little chain is made up of three strands, the weft 

 threads, passing through the chain, leave two strands on one 

 side and one on the other side and, after shrinkage, the fabric 

 would be unbalanced. To correct this, a weft thread is passed 

 on each side of the rubber thread, single weft on the side 

 where there are two strands, and double weft on the side on 

 which the strands of the little chains are single. 



Thus in the center drawing will be seen the face of the fabric 

 with two strands and one warp, while the reverse side with 

 single strands and double warp is shown on the right. [Louis 

 Brun. French Patent No. 480,735 (1916).] 



Ventilated Rubber Glove. Flutes or air passages are molded 

 in the glove, extending along the backs of the fingers and 

 thumb to points beyond the wrist. [John C. Gibson, Akron, 

 Ohio. United States patent No. 1,206,102.] 



1,204,609. 



1,204,816. 



OTHER PROCESS PATENTS. 



THE IINITED STATES. 

 Dental rubber composition and art of manufacture. S. G. Sup- 

 plee. East Orange. N. J., and C. J. R. Engstrom, Los Angeles, 

 Calif. 



Belting composed of wire coils, non-metallic pins, and a rubber 

 filler enclosing the coils and pins. E. Pattee, Santa Crui. 



C.ilif. 



Process for constructing endless belts and molds therefor. F, 

 Hall, Newark, Ohio. 



Process of manufacturing rubber boots. R. B. Price, New 

 York City, assignor to Rubber Regenerating Co., Mishawaka, 

 Ind. 



Plastic composition comprising a mass of rubber and a multi- 

 tude of short untwisted textile fibers. J. R. Sabford, Salis- 

 bury, Conn. 



Process of fitting hard rubber jars to storage battery boxes. C. 

 Hodge, Radnor, Pa. 



Method of repairing tire casings of the clincher type. O. F. 

 Hungerford, assignor of one-fourth to C. E. Crookston — both 

 of Middleville, and three-fourths to B. M. Soule, Grand 

 Rapids — both in Michigan. 



Process of making rubber water bottles. M. B. Clarke, Canton, 

 Ohio. 



Fabric for tires. L. J. Campbell, Chicago, 111. 

 THE TTNITED KINGDOM. 

 11,229 (1915). Shoe soleb. T. C. Redfern, Dawson and Springbank street!, 

 Hyde, Cheshire. 



1,204,976. 

 1,206,914. 



1,206,920. 



1,207,293. 

 1,207,294. 



1,207,372. 

 1,207,709. 



MISCELLANEOUS PATENTS. 



A Sectional Rim. Briefly, this comprises an annular base 

 rim with side flanges; two flange rings adapted to co-act with a 

 clincher or straight-side tire; a movable wedge-shaped key piece 

 held in place by a spring latch. [Ernest Hopkinson, East 

 Orange, New Jersey. United States patent No. 1,204,019.] 



Internal Tire Pump. For maintaining tire pressure a block 

 of soft vulcanized rubber with molded air chamber, air passages 

 and valves is placed between the inner tube and casing, and 

 cemented to the former. The depression of the tire casing and 

 the resiliency of the rubber block jointly pump air into the 

 tire. [Henry F. Molkenbur, St. Paul, Minnesota. United States 

 patent No. 1,207,427.] 



CONTAINERS EOR TIRE REPAIR MATERIALS. 



Auto-repair kits have grown in popularity of late, as the 

 majority' of motorists do their own tire repairing; moreover, in 

 the tool box of many cars will be found the little paper screw 

 top can containing a blow-out patch, rubber cement and cold 

 patches for emergency purposes. 



Large quantities of these screw top paper cans and tubes are 

 used by manufacturers of repair materials to contain cementless 

 patches, frictioned and coated fabric, unvulcanized tread and 

 tube stock, combination tube stock for inside use and vulcanized 

 pure gum patching sheet for general purposes. Talc for dusting 

 the inner surfaces of casings before inserting the tube, is usually 



sold in these containers. They are made in many different sizes 

 to hold combinations of standard supplies and containers for 

 specially equipped tire repair kits are made to order. [The St. 

 Louis Paper Can & Tube Co., St. Louis, Missouri.] 



NO MOTOR ROADS IN AMERICA! 



Explaining the enormous United States consumption of rubber, 

 "Le Grand Livre Commercial et Industriel," November S, 1916, 

 says : 



The enormous consumption of rubber in the United States 

 amounts almost to two-thirds of the world's production. This is 

 due to the great consumption of pneumatic tires in the United 

 States. There, there are hardly any wagon roads. All is rail- 

 ways and rivers. The roads are bad, and, frequently, are 

 nothing more than trails. The wearing out of tires is, therefore, 

 formidable. But what do the Americans care, if they can cover 

 kilometers. On another hand, the cheap automobile has general- 

 ized the use of motor cars, hence, a number of automobiles 

 that we don't know in our old Europe. 



