March 1, 1917.] 



THE INDIA RUBBER WORLD 



333 



1,213,223. 



1,213,225. 



1,213.525. 

 1,213,600. 



1,213,601. 

 1,214,277. 



1,214,295. 



1,214,888. 

 1,215,648. 



1,215,680. 

 1,215,828. 



1,215,910. 

 1,215,934. 



172.649. 

 172,829. 

 172,830. 



OTHER MACHINERY PATENTS. 



THE UNITED STATES. 



Tire press vulcanizer. N. W. McLeod, St. Louis, Mo., assignor 

 10 American Motors Tire Co., Detroit, Mich. 



Pneumatic tire mold. N. W. McLeod, St. Louis, 

 to American Motors Tire Co., Detroit, Midi. 



Mo., assignor 



Collapsible core. R. M. Merriam, Akron, Ohio. 



"Pire and method of making the same. W. H. Dunkerley, Pater- 

 son, N. J. 



Tire braiding machine. W. H. Dunkerley, Paterson, N. J. 



Apparatus for vulcanizing tire shoes. H. Z. Cobb, Winchester, 

 Mass., assignor to United States Rubber Co., New Bruns- 

 wick, N. J. 



Mei'hod and apparatus for cutting rubber blanks. J. R. Gam- 

 meter, Akron, Ohio, assignor to The B. F. Goodrich Co., 

 New York City. 



Tire casing mold. W. H, Burritt, St. Louis, Mo. 



Tire forming apparatus. R. T. Griffith, assignor to The Miller 

 Rubber Co. — both of Akron, Ohio. 



Tire remover and replacer. A. N.- Mason, Paducah, Ky. 



Mold for making pneumatic tires. N. W. McLeod, St. Louis, 

 Mo., assignor to American Motors Tire Co., Detroit, Mich. 



Pressure cure vulcanizing apparatus. M. H, Clark, Hastings- 

 npon-Hud«on, N. Y.i assignor to Boston Rubber Shoe Co., 

 Boston, Mass. 



Cross wrapping machine. O. A. Heckman, Akron, Ohio. 



THE DOMINION OF CANADA. 



Collapsible core. D, R. Hanawalt, Akron, Ohio. 



Repair vulcanizer. A. B. Low, Denver, Colo. 



Repair vulcanizer. A, B. Low, Denver, Colo. 



THE UNITED KINGDOM. 



12.943 (1915). 

 13.139 ( 

 13,141 C 

 13,682 C 



(1915). 



(1915). 



(1915J. 



13,776 (1915). 



102,178. 



102,443. 



Apparatus for lemoving air from rubber compound. W. J, 

 Mellersch- Jackson, 28 Southampton Buildings, London. 

 (Rubber Regenerating Co., New York City.) 



Rubber sole laying machine.. W. J. Mellersh-Jackson, 28 

 Southampton Buildings, London. (Boston Rubber Shoe 

 Co., Boston, Mass.) 



Rubber footwear stitching apparatus. W. J. Mellersh-Jack- 

 son, 28 Southampton Euilaings, London. (Boston Rub- 

 ber Shoe Co., Boston, Mass.) 



Apparatus for curing and coagulating rubber latex. Rub- 

 ber Curing Patents Syndicate, Norwich Union Buildings, 

 St. James' street, London, and F. A. Byrne, 2 Ludgatc 

 Hill, Birmingham. 



Bearings for the rollers of a rubber mill, etc. Naamlooze 

 Vennootschap Deventer Ijzergieterij en Machine-Fabriek 

 Voorhen, J. L. Nering Eogel & Co., and R. van Vlotcn, 

 Deventer, Netherlands. 



Apparatus for the manufacture of rubber and like tubing. 

 H. Wade. HI Hatton Garden, London. (B. B. Gold- 

 smith, New York City.) 



Clamp for use in securing leather or rubber soles to shoes 

 by cement. H. Umbers, 29 Vernon street, and E. G. 

 Dolman, 22 Ringley street — both in Harpurhey, Man- 

 chester. 



H 



rl 



•^=i 



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o ooooo>^G 

 o o o o o o I 

 o o o o o o 



PROCESS PATENTS. 



FRENCH PROCESS FOR RECLAIMING BOTH RUBBER AND FABRIC. 



METHOD for integrally removing rubber from the canvas of 

 worn out pneumatic tires. This method permits the complete 



recovery of the rubber 

 contained in the cloth 

 which, entirely freed from 

 rubber, may then be used 

 again. 



To obtain this result, the 

 rubber scrap is treated 

 with a dissolvent, for in- 

 stance, xylol, subjected to 

 powerful agitation while at 

 the same time kept at a 

 high temperature. 



This agitation is pro- 

 duced by violent ebullition 

 of the xylol in a vacuum at from 100 to 110 degrees, combined 

 with circulation of the liquid obtained by an arrangement 

 similar to that used in ordinary lye-washing machines. 



The drawing shows a sectional elevation of the apparatus 

 which consists of a digester A in the bottom of which is arranged 

 a steam coil B. This heating can also be effected by means of the 



steam jacketed casing. Inside the digester, covered with a mov- 

 able lid C, is a removable basket D, provided at the upper part 

 and the center with caps E. In this basket is placed the material 

 from which the rubber is to be removed after first being washed. 



The upper part of the digester A communicates by means of a 

 pipe F with a reflux condenser G, which returns to the digester 

 the liquid resulting from the condensation of the steam. A tube 

 H connects the condenser with an exhausting-pump. 



After the cloth has been freed from rubber, it is placed in a 

 washing-machine with cold xylol. This removes the particles of 

 rubber still adhering to the cloth and also the resin and free 

 sulphur. 



The impure xylol resulting from this operation may be ad- 

 vantageously employed to swell the rubber in the preliminary 

 treatment of the tires, always, however, after it has been filtered 

 to free it from the particles of rubber. After the cloth has been 

 rinsed in the washing machine, it is put into the basket D and 

 this is placed into the digester A containing clean xylol. 



A vacuum is produced in the digester and heat to about 110 

 degrees is applied, prodiicing violent ebullition. When the opera- 

 tion is judged to be concluded, the digester is emptied and a 

 second operation begun. 



All liquids with which cloth containing rubber in dissolution has 

 been treated after the manner just explained, will still serve to 

 effect the dissolution of rubber particles. 



By the above method, the freeing of cloth from the rubber is 

 almost integral ; but to obtain a perfect result, a fresh quantity of 

 xylol is added in the digester and the temperature is brought to 

 about ISO degrees under pressure for a certain length of time. 

 When the operation is concluded the cloth is replaced in the 

 washing machine, is washed, rinsed and finally dried in a current 

 of warm and inert gas. [H. Debauge. French patent No. 481,293 

 (July 20, 1915).] 



A NOVEL TIRE FABRIC CONSTRUCTION. 



Under present conditions tire-building strips are cut on the 

 bias from tire fabrics of standard widths, but the length of the 

 strips is relatively short and limited to the width of the fabric. 

 This invention provides 

 a strip that may be cut 

 lengthwise or trans- 

 versely of the weave 

 and in width somewhat 

 greater than the trans- 

 verse circumference of 

 the tire. As seen in the 

 illustration, the longi- 

 tudinal edges are ser- 

 rated and the free ends 

 of the flaps are so 

 spaced that when the strip is wound circumferentially around 

 the core and the edges brought down against the sides, _ the 

 edges of the flaps will meet. When the strip is cut longi- 

 tudinally of the fabric one length may be used to construct an 

 entire casing. [Robert M. Merriman, Akron, Ohio. United 

 States patent No. 1,213,929.] 



OTHER PROCESS PATENTS. 



1,213,905. Process for vulcanizing plastics. C. J. Kandall, Naugatuck, 

 Conn., assignor to Boston Rubber Shoe Co., Boston, Mass. 



1,215,275. Woven rubber fabric. A. H. Henderson, assignor to The Hen- 

 derson Riil)ber Co. — both of Baltimore. Md. 



THE DOMINION OF CANADA. 

 172,569. Method of making wilcanizcd rubber. Canadian Consolidated 

 Rubber Co., Limited. Montreal, Quebec, assignee of C. D. 

 Mason, Naugatuck, Conn. 

 172,679. Method of producing double texture fabrics. J. Meade, Stougbton, 

 Mass. 



THE ITNITED KINGDOM. 



12,944 (1915). Forming rubber articles by dipping. W. J. Mcllersli- 

 Jackson. 28 .Southampton Buildings, London. (Rubber 

 Regenerating Co., New York City.) 



