September 1, 1921 



THE INDIA RUBBER WORLD 



907 



track in front of the main structure, alternately serving either 

 of two building cores. — The Goodyear Tire & Rubber Co., as- 



Mech.\nical Tire Builder 



signee of William Bogart Harsel — both of Akron, Ohio. 

 adian patent No. 210,429. 



Can- 



SPONGE RUBBER BALLS 



Sponge rubber balls may be molded in two-part vented molds 

 as follows : the rubber composition compounded to blow into a 

 porous condition on heating is first formed in cylindrical shape by 

 a tubing machine and cross-cut into sections of suitable length to 

 reach across the diameter of the ball cavity. When so placed 

 vertically, the mold is closed and vulcanizing heat applied, thus 

 causing the cylindrical rubber stock to expand laterally. The air 

 contained in the mold cavity escapes by the vents at either end of 

 the cylinder of rubber and allows the latter to expand by becoming 

 porous and filling out to the full spherical size of the cavity. — 

 Charles F. Flemming, assignor to The Miller Rubber Co. — both of 

 Akron, Ohio. United States patent No. 1,370,805. 



MACHINE FOR DIPPING AND SOLVENT RECOVERY 



In the dipping machine here illustrated, heating surfaces are 

 arranged beside the cooling surfaces in the casing inclosing the 

 mold carriers in such manner that the walls of the casing lying 



on the two sides of the 

 mold carrier are given 

 different degrees of tem- 

 perature. There is thus 

 obtained energetic circu- 

 lation and intensive dry- 

 ing effect. 



The solvent recover- 

 ing device A is arranged 

 above the dipping device 

 B. The former com- 

 prises a casing C 

 through which the re- 

 volving mold carrier D 

 is journaled. The molds 

 E on which the rubber 

 articles are formed is 

 arranged in series on D 

 as indicated. In the 

 lower part of A is an 

 opening for the admission of dipping tank F closed by a slide G 

 operated cither by hand or power attachment. The encased dip- 

 ping device B consists of tank F for the rubber solution, mounted 

 on a hydraulic plunger H. 



The left side of casing A is formed as a cooling mantle I, piped 

 for the circulation of water. A guide baftle-plate J is attached 



The Boecler Dipping Machine 



to the casing and bent to run concentrically around the mold 

 carrier D, and perforated where shown by the arrows for the 

 escape of solvent vapors. The casing C of the recovery device 

 A is provided on part of its circumference with a serpentine 

 heating appliance K. 



In operation the slide G is opened and the tank F raised to 

 the dipping height to permit immersion of the series of molds E 

 in rotation. The solvent vapor escapes rapidly in the circula- 

 tion of warm air indicated by the arrows and condenses freely 

 by contact with the water-cooled section and may be drawn oflF 

 through an outlet pipe. — Albert Boecler, Malmci, Sweden. 

 United States patent No. 1,380,862. 



N 



O. 1 



OTHER MACHINERY PATENTS 



THE UNITED STATES 



382,007 C(lla|>5iMf tire core. T. Midglcy, Sr., Wortliington, O., 



assicinnr to The Fisk Rubber Co., Chicopee Falls. Mass. 

 3S2.035 Collapsible tire core. F. A. Watson, Springfield. O. 

 Apparatus for extruding, cooling, and cutting rubber. L. R. 



McOuire, assignor to the Firestone Tire & Rubber Co. — both 



of Akron, O. 

 Pncumaticlire-buildini; machine. T. L. Butler, Akron, O., as- 

 signor to The B. F. Goodrich Co., New York, N. Y. 

 Rubber-heel trimmer. T. B. Huestis, assignor to National India 



Rubber Co.— both of Bristol, R. I. 

 Machine for trimming flashed edges of forked rubber binding. 



W. J. Kent, New York, N. \., assignor to The Mechanical 



Rubber Co., a New Jersey corporation. 

 Vulcanizing oven. C. J. Berthel. Alcrcn, O. 

 Mold for making heels, lifts, soles, etc., from rubber. H. C, 



Riduut. Bournemouth, England. 

 Repair vulcanizing device. S. J. Hurwitz, Youngstown, O. 

 Expansible core. J. Traum, Coshocton, O. 

 Apparatus for loosening tires from cores. A. O. Abbott, Jr., 



assignor to Morgan tk Wright — both of Detroit, Mich. 

 Control for tire-stripping machine. M. Davis, assignor to 



Morgan & Wright — both of Detroit, Mich. 

 Tire-supporting device for tire molds. A. H. Harris, Barber- 



tdi, assignor to E. A. Armstrong, Akron — both in Ohio. 

 Repair vulcanizer. W. R. Younger, Alexandria, La. 



THE DOMINION OF CAN.ADA 



212,301 Apparatus for sulutioning tire beads. The Dunlop Tire & 



1, 

 382,207 



1,382,471 

 1,382,642 

 1.382,651 



1,382,948 

 1,383,857 



1,383,951 

 1,384,362 

 1,384,419 



1,384,431 



1,384,463 



1,384.503 



Rubber Goods Co., Limited, assignee of T. A. 

 of Toronto, Ont. 



-both 



163,580 



163,781 



THE UNITED KINGDOM 



Control device for adjusting rollers uf rubber-mixing, grinding 

 .-.r washing maclnne. Iddon Brothers, Limited, and H, E. 

 Iddon, Brookfield Iron Works, Leyland, Lancashire. 



Apparatus for covering endless wires for use in edges of tire 

 casings. W. & A. Bates, Limited, and J. Healey, St. Mary's 

 Mills, Leicester, and F. Shaw & Co., Limited, Corbett Street 

 Ironworks, Bradford, Manchester. 



NEW ZEALAND 



43,276 Apparatus for manufacturing pneumatic tires, 

 gate, Devizes, Wiltshire, Eng. 



T. Sloper, South- 



Paul 



GERMANY 



DESIGN PATENTS ISSXTED, WITH DATES OF ISSUE 



778,110 (.April 13, 1921) \"ulcaiiizing apparatus. Josef and 



Elsig, Merheimerstrasse 114, Koln Nippes. 

 782,033 (May 28. 1921) Electrically heated vulcanizing apparatus. Ap- 



paratebaugesellschaft m. b. II., Baden-Oos. 

 783,498 (May 31, 1921) Tool for making tire covers. Lorenz Schafer, 



Konigswall 50, Dortmund. 

 783,907 (May 31, 1921) Tool for making tire covers. Lorenz Schafer, 



Konigswall 50, Dortmund. 



N 



339,810 



PROCESS PATENTS 



THE UNITED STATES 



O. 1,382,208 Manufacture of articles of fabric and rubber. H. F. 

 Maranville, assignor to the Firestone Tire & Rubber Co. — 

 both of Akron, O. 



1,382,367 Manufacture of tire carcasses. K. B. Kilborn, assignor to 

 The Goodyear Tire & Rubber Co. — both of Akron, O. (Origi- 

 nal application divided.) 



GERMANY 



PATENTS ISSUED, WITH DATES OF ISSUE 

 (March 25, 1920) Method for improving pneumatic tires. Lucas 



Kinkel, Szeghegy-Bacska, Jugo-Slavia; represented by R, 



Fischer, Berlin, S. W. 

 (April 17, 1920) Attachint: exchangeable rubber heels. Gustav 



Milst, a. d. Hafen 69, Bremen. 

 (November 14, 1920) Process for making treads. Waller Einert, 



WfjIfTstrnsse 23. Hanover, 

 DESIGN PATENTS ISSUED WITH DATES OF ISSUE 

 (April 11, 1921) Attaching exchangeable rubber heels. Ludwig 



Stadlcr, Werfstrasse 5, Regensburg-Unterer Wohrd. 

 (June 3, 1921) Process for obtaining non-slipping rubber heels. 



Krnst Wlcek, Seumestrasse 83, I-cipzig-Schleiissig. 

 (September 20. 1920) Splicing tube ends for bicycles, automo- 

 biles, etc. Peter Miiller, Fraulautcrn, Saar. 

 (June 10, 1921) Inflating tires. Oskar Klemm, Sternplatz 6, 



Berlin-Johannistbal. 

 (June 11, 1921) Coupling and uncoupling belting. Anton 



Stchlik, Vienna; represented by A. Elliot, Berlin. S. W. 48. 

 (June 13. 1921) Attaching rubber heels. Wilhclm Hayer, 

 Schkcuditzerstrasse 22, Leipzig-Gohlis. 



