September 1, 1919.] 



THE INDIA RUBBER WORLD 



699 



The central unit of the machine inchides a mandrel-driving 

 mechanism, and a cord-impregnating, feeding, and tensioning 

 mechanism for supplying the cord to the mandrel. A second 

 unit consists of the mandrel-collecting and feeding mechanism. 

 The third unit comprises the gum-wrapping and stripping 

 mechanism. 



In operation, the cord from the spool D passes through the 

 cement pot E, through the vacuum-drying chamber F, around 

 the tension G to a securing hook on the end of a mandrel H 

 whicli is spirally grooved at a light pitch. The mandrel is 

 rotated and the winding of the rubberized cord upon the man- 

 drel commences. At this time the mandrel-loading mechanism 

 is put in operation so tliat when the first mandrel is completely 



M.\CHINE FOR M.\KING TlRE-BulLDI N'G F-\BRir StRIPS. 



wound, another one will be in the proper position to be next 

 covered with the cord. 



When the mandrel is nearly wound the free end of a gum 

 strip / is attached to the end of the mandrel and the driving 

 mechanism / thrown into operation. This causes the screw- 

 threaded rail K to revolve slowly, and the gum-strip-applying 

 mechanism to travel in opposite direction to that of the mandrel. 

 The difference in speed compensates for the width of the gum 

 strip, allowing sufficient lapping to cover the mandrel completely. 

 At the completion of this operation the rotation of the mandrel 

 is stopped and the operator then severs the cord at the junction 

 of the two mandrels, fastening the ends around the securing 

 hooks on the mandrels. The transferring cradle is then rocked, 

 delivering the freshly covered mandrel into the stripping trough L. 

 The machine is again started and the operation just described 

 is repeated. 



In the stripping trough the mandrel is stripped of its covering 

 by means of a knife inserted into an appropriate groove. The 

 operator slowly revolves the mandrel with one hand at 

 the same time thrusts the knife forward in the groove with 

 his other hand and severs the cords and fabric. He then de- 

 posits the severed frabric strip in any suitable stock take-up 

 or rolling table. (Frank A. Seiberling, Akron, Ohio, assignor 

 to The Goodyear Tire & Rubber Co., a corporation of Ohio. 

 United States patent No. 1,309.424.) 



N 



OTHER MACHINERY PATENTS 

 THE UNITED STATES. 



1,308,834. Repair vulcanizeT; J. W. Artli 



Williams Foundry & Machine Co, 



309. R4,";. Kloctnc riii.ur vuK-.-iiii/fr ( 



309,894. Tii- II. '.I:ii- ,,;.!.,,■,, I I L i: l.,r 



assignor to The 

 f Akron, O. 

 nis, Chicago, 111. 

 nor to The Good- 



rubber articles. 



1.310.440. Apparatus and method d rubber ■ artic 



F. T. Roberts, Clevel.ni.l li -.r to The F; 



mount Rubber Co., Clevil i :,,,., 



1.310.441. Apparatus and method I'm ■,■..,]. ,uy , ,1 im nipples. F 



Roberts. Cleveland Hcishts, assifinor to The Paramo 

 Rubber Co., Cleveland— both in Ohio. 



1.310.442. Apparatus and method for making hollow rubber artic 



F. T. Roberts, Cleveland Heights, assignor to The Pi 

 mount Rubber Co., Cleveland— both in Ohio. 



191,586. 

 191,722. 



Machine for building [meumatictire casings. E, Hopkinson, 



New York City. 

 Apparatus for vulcanizing rubber boots and shoes. F. R. 



Ross, Cape Girardeau, Mo. 

 Apparatus for making fibrous webs for electric insulation. 



E. Haefely, Basel, Switzerland. 

 Press for vulcanizing tires to different degrees of hardness. 



J. H. Birkenbeuel, Portland. Ore. 

 Repair vulcanizer. E. T. Horsey. Cleveland, O. 

 Tire-vulcanizing apparatus. M. Le R. Hunger, Pittsburgh, 



Pa., assignor to E. B. Sawver, Lincoln, Neb. 

 -Apparatus for making rubber shoe-soles. P. and B. De Mattia, 



Clifton, N. J. 



THE DOMINION OF CANADA. 



Apparatus for vulcanizing rubber water bottles. The Canadian 

 Consolidated Rubber Co., Limited, Montreal, Que., assignee 

 of J. L. Mahoney, New Haven, Conn., U. S. A. 



Apparatus for makine hollcw rubber articles. The Aranar Co., 

 assignee of F. T. Roberts— both of Cleveland, O., U. S. A. 



THE UNITED KINGDOM. 



tires. Dunlop Rubber Co.. 14 

 and C. Macbeth and C. K. Jone 

 Birminghan 



1a?a 



Ardwick. Man- 

 chester. 

 Apparatus for making joint-making packing from rubber and 

 asbestos fiber. Potter's .Asbestos Co., Rochdale, and D. Bridge 

 & Co. and R. Bridge, Castleton Iron Works, Castleton, both 



491,189, 

 491.191 

 491,283 



street, Bradford, Manchester. • 



THE FRENCH REPUBLIC. 



Improvements in apparatus for impregnati 



the fabrication 



enders for the 



rolli, 



up. Re 



machines for shaping cylit 

 ■ere Rubber Co. 

 ocess tor mixing rubber or 



bodif 



by 



Apna 



C. H. Gray. 



M.-ichine for attaching two-piece heels having rubber tread por- 

 tion. United Shoe Machinery Co. of France. 



Machine for inserting buckles in galoshes. United Shoe Ma- 

 chinery Co. of France. 



Improvements in apparatus for placing valves on pneumatic 

 tires or other pneumatic articles. Dunlop Rubber Co. of 

 Australasia, Limited. 



N°- 



PROCESS PATENTS. 

 THE UNITED STATES. 



1,309,118. Stripping down carcasses of used tires to make leggings. 



J. J. Dettling and E. A. Tinsman. Akron, O. 

 1,309,687. Manufacture of inner tubes for pneumatic tires I B 

 Jeffries. Llanelly, Wales. - • . 



,310,013. Reclamation of vulcanized rubber by swelling under pressure 

 and suddenly releasing pressure. H. R. Haertel. Franklin, 

 Mass. 

 ,310,436. Manufacture of tubes for pneumatic tires. F. T Roberts 

 , „ „- , ass'Sn'-r to The Paramount Rubber Co.— both of Qeveland, o'. 

 ,310,437. Manufacture of inflatable rubber articles. F. T. Roberts, as- 

 signor to The Paramount Rubber Co. — both of Cleveland O 

 ,311,392. Joining rubber tubes. R. J. Harrison, Chicopee Falls. Mass. 

 ,311,738. Manufacture of puncture-proof tire-tubes. G F Armstrong 

 Rutherford, N. J. 



THE DOMINION OF CANADA. 



Manufacturing felt articles with an apron, etc. The Canadian 

 Consolidated Rubber Co., Limited, Montreal, Que., assignee 

 of F. Sage, Hastings, Mich., U. S. A. 



Closing opening in hollow rubber article, vulcanizing, etc. The 

 Canadian Consolidated Rubber Co., Limited. Montreal Due 

 assignee of J. L, Mahoney, New Haven, Conn., U. S. A 



Joining vulcanized rubber parts under tension, applying pres- 

 vulcanizing. The Canadian Consolidated Rubber 



191,583. 

 191,584. 

 191,585. 



191,723. 



Co., Limited, Montreal, Qu 

 New Haven, Conn., U. S. .' 

 ulcani: 

 land, C, U. 



THE UNITED KINGDOM. 



apping electr 



J. L. Ma 



ape of rubber 

 ir Co., Wood- 

 . -. 33 Kinfauns 

 Road, Goodmaves, both in Esse.x. 



rnamenting rubber articles by dipping in solution of colored 

 rubber, dropping other colors on them irregularly, drying, 

 and vulcanizing. C. E. Leheup, 35 Vernon Road, Leyton- 

 stone, London. 



anufacture of packing and insulating material from layers of 

 thin asbestos felt coated with rubber. I. H, Levin. 101 

 West 140th street. New York City, U. S. A. (Not yet ac- 



cepted.) 

 Manufacture of ru 

 gun, Tokio, Japa 



THE FRENCH REPUBUC 



Method and means employed in making 



balls. K. Fukuda, 3394, Oimachi-Ihara- 



