THE INDIA RUBBER WORLD 



[June 1, 1919. 



The material A. formed from a plastic composition of rubber 

 and asbestos compressed and dried in any manner, such as be- 

 tween endless bands B as described in British patent No. 1J1,772, 

 receives surfacing material from a hopper e on one or both 

 faces and passes to calendering rolls E which may be heated to 

 drive off solvent. 



^ 





t 



«Z) 



-g-m 



Machine for Making Asbestos Packing. 



From the calender, the sheet passes between presser rollers and 

 is wound up on the roller A shown at the right of the illustra- 

 tion. (Poller's Asbestos Co. and A. E. Stafford, Rochdale, Lan- 

 cashire, England. British patent No. 121,904.) 



CHICI-E GUM-STRAINING MACHINE. 



In the operation of this machine the melted chicle containing 

 the foreign matter flows in a continuous viscous stream from the 

 chute down onto the surface of the rotating cylinder and is car- 

 ried thereby under the rubber 

 roller, the pressure of which 

 squeezes the gum through the 

 screen and perforations into the 

 interior of the cylinder. 



From the interior of the cylin- 

 der the gum is gathered by a 

 spiral scraper and caused to flow 



Chicle Str-mxer. 



of the open end of the cylin- 

 der through a hole in the plate, 

 to the discharge spout. 



The cylinder and scraper are 

 heated to the required degree to 

 facilitate this flow of the gum 

 without heating it too hot. The 

 impurities in the gum are not 

 forced through the screen into 

 the cylinder, but are picked up 

 by the comparatively cold and more sticky yielding surface of the 

 rubber roller and carried thereby until they are collected from 

 the surface of the roller by the scraper at the top. (Karl E. 

 Peiler, assignor of one-ninth to himself, two-ninths to William 

 A. Lorenz, both of Hartford. Connecticut; and six-ninths to 

 Beechnut Packing Co., Canajoharie, New York. United States 

 patent No. 1,296,112. See United States patent No. 1,296,- 

 096.) 



MACHINE FOR MAKING RUBBER STOCK. 



Rubber stock may be built up of laminated strips, and en- 

 trapped fluids removed by this process. The machine illustrated 

 is designed to produce solid tire stock, and comprises an 

 ordinary tubing machine 

 A provided with a lam- 

 inating die B through 

 which the separated 

 strips are forced and 

 conveyed between com- 

 pression rollers CandD. 

 Pressure being applied 

 to the mass in the tubes 

 when the strips are extruded through the die into a region of 

 lower pressure, the gases are excluded. Furthermore, as the 

 strips pass between the compression rollers, any remaining gas- 

 pockets are broken and all hollows are flattened out so that 

 the stock leaves the rolls free of pockets and entrapped fluids. 



Solid-Tire-Stock Machine. 



(Thomas P. Little, assignor to The Fisk Rubber Co.. both of 

 Chicopee Falls, Massachusetts. United States patent No. 

 1,297.482.) 



MAKING GOLF BALLS. 



This patent relates to apparatus for molding elastic material 

 and particularly golf or like balls of the form described in 

 British patent specitication No. 120,658. The mold sections 7, 

 8, 13, 14 are provided with tapering radial pins 9 . . 14 which 

 converge to a common center and 

 are symmetrically disposed. Some 

 of the pins may be long enough to 

 support a hard core (1) to be 

 embedded in the material (2) of 

 the ball. In the construction 

 shown, the mold consists of four 

 sections, two (13, 14) of which 

 form the equatorial part of the 



ball. When molded, the material is drawn off the pins, and the 

 ball is completed as described in the above-mentioned specifica- 

 tion. The mold may be used for a rubber composition, which 

 is vulcanized therein, or for a composition which can be poured 

 into the inold and allowed to set. (W. J. Mellersh-Jackson, 28 

 Southampton Buildings, London. [Revere Rubber Co., 59 Reade 

 street. New York City.] British patent No. 121,239.) 



LL Mold 



N" 



1.298,644. 

 1,298,945. 



,300,341. 

 .30O.J91. 



189,960. 

 189,986. 

 190,005. 

 190,033. 



123,068. 

 123,136. 



123.137. 



123,138. 



123.414. 

 123,636. 



OTHER MACHINERY PATENTS. 



Calif. 

 ,298.124. Tire-building machine. W. C. Tyler, Racine, Wis., 

 assignor to The Goodyear Tire & Rubber Co., .Akron, O. 

 Repair vulcanizer. C. T. White, Santa Barbara, assignor of 



'A to G. E. White, Santa Cruz County, and 'A to W. E. 



Mouck. Santa Barbara County— all in California. 

 Repair vulcanizer. J. H. Wright, Lebanon, Mo. 

 Apparatus for the manufacture of electric cables. C. T. Beaver 



and E. A. Claremont. County of Chester, England. 

 Expansible core for vulcanizing tires. J. P. Smith, assignor 



to the Firestone Tire & Rubber Co.— both of .<\kron. O. 

 Edge-trimining machine. R. Hazeltine, assignor to The Fisk 



Rubber Co. — both of Chicopee Falls, Mass. 

 — Device for stripping lasts from boots. T. J. Kramer and H. 



Smerling, assignors to La Crosse Rubber Mills Co.— all of 



La Crosse, Wis. 

 .Apparatus for forming duplicate tire molds. B. Branville, New 



York City. 

 Machine foi shaping tire covers. F. H. Mercer and H. F. H. 



Blease. Melksham. England. 

 Tool-mounting for tire-machines. T. L. Butler, Akron, O., as- 

 signor to The B. F. Goodrich Co., New York City. 

 Core for tire casings. C. D. Hibbs, Fort Worth, Tex. 



THE DOMINION OF CANADA. 



Machine for .shaping tire covers. F. H. Mercer and H. F. H. 



Bleasc, Melksham, England. 

 Tube-wrapping machine. O. E. Heckman. Akron. O., U. S. A. 

 Mold for forming tires. W. D. McNauIl, Toledo. O., U. S. A. 

 Rubber-teoating machine. A. Schwartz, Brookline. Mass., U. S. A. 

 Tire-wrapping machine. The Canadian Consolidated Rubber Co., 



Limited, Montreal. Que., assignee of C. B. Whittelsey, 



Hartford, Conn.. TJ. g. A. 

 Machine for operating on heels having both leather and rubber 



parts. The United Shoe Machinery Co. of Canada, Limited, 



Maisonneuve, Quebec, assignee of J. F. Standish, Winthrop, 



Mass.. U. S. A. 



THE UNITED KINGDOM. 



Machine for deflating pneumatic tires. H. P. Kraft, 219 God- 

 win avenue, Ridgewood. N. T.. U. S. A. (Not yet accepted.) 



Apparatus for making solid tires. Henley's Telegraph Works 

 Co. and W. T. and G. Sutton, 13 Blomfield street. 

 Wall, London, and E. E. Judge, 36 Grange 



Apparat.!S for trimming solic" *■— "—'-•■- 

 to. and W. T. and G. 5" 

 Wall, London, and E. E. 



Apparatus for trimming solid - -.. . 



Co. and W. T. and G. Sutton, 13 Blomfield street. London 

 Wall, London, and E. E. Judge. 36 Grange Road. Gravesend. 



Machine for covering wires with plastic material. A. J. Welch, 

 13 Woodland Terrace, Old Charlton, London. 



mold. E. Hopkinson, 1790 Broadway. Xew Y'ork City, 



London 



U. S. 



N' 



PROCESS PATENTS. 



THE DOMINION OF CANADA. 



190,045. To manufacture endless inner tubes. The Mercer Tire Co., 

 assignee of H. Dech— both of Trenton, N. J., U. S. A. 



