122 



THE INDIA RUBBER WORLD 



[December 1, 1915. 



The material is fed into the hopper D and is forced by the 

 stock worm E towards chamber A. When the material reaches 

 the opening into the larger chamber A, it expands and is subjected 

 to the direct action of a vacuum through one or more pipes F. 

 This removes all entrapped 

 air, moisture and gases. 

 An cfYectual seal is pro- 

 vided by the movement of 

 the material in the hop- 

 per and in the large cham- 

 ber A, thus allowing an 

 efficient vacuum to be ex- 

 erted. The material is 

 then carried along by 

 stock wcirm />'. rotated by belt wheel C, to the discharge outlet G'. 

 Ikayniond B. Price, assignor to Rubber Regenerating Co., United 

 States patent No. 1,156,096.] 



MACHINE FOR APPLYING NON-SKID STUDS, 



Steel studs of leather non-skid treads are evenly spaced 

 around the tread in three staggered rows by the machine illus- 

 trated herewith. Referring to the drawing — the hoop shaped 

 template A has three rows of holes corresponding lo the studs 

 of the tread, and is sup- 

 ported by three rollers B. 

 It is turned intermittently 

 by a pawl that engages 

 teeth cut on the inner peri- 

 phery of the template. The 

 lever C that moves the 

 pawl rocks on shaft D 

 through a cam on the drn - 

 ing shaft. The template A 

 is adjusted transversely for 

 a new row of studs by the 

 eccentric sleeves of the 

 rollers B operated by han- 

 dles E. 



The leather tread is 

 slipped on the template, 

 which is then placed in the 

 machine. The punch F, 

 guided by the template, 

 punches a hole, and a stud 

 IS brought forward and in- 

 serted from below by the plunger H. A washer, fed from above 

 the template, is dropped over the stem of the stud, which is then 

 riveted by the hammer G. [Dunlop Rubber Co., Limited, and 

 F. J. Keegan, British patent No. 10,214, 1914.] 



HYDRAULIC TIRE VULCANIZING MOLD AND PRESS. 



In this process the tire cover is molded and vulcanized simultane- 

 ously by placing the cover, in the form of a cylindrical ring, 

 in contact with a suitably grooved heated ring, and pressing 

 it by radially moving segments. ^ 



In the illustration A is the ring, which is :' ""—'■ ^^^ 



heated by making it a part of a steam-heated ^ 



chamber, and C is one of the movable seg- 

 ments. When two or more tires are to be 

 molded and pressed, either ring A may be 

 grooved, or additional rings, as B, may be 

 employed. 



The radial segments are forced outwards 

 by the toggle-joints D, joined to the piston 

 E, working in the upper part of hydraulic 

 cylinder F. The radial segments slide be- 

 tween the fixed parts G and H, and are at- 

 tached to the cylinder F, which moves over 

 a fixed piston /. The two pistons are separated by a diaphragm 

 about two-thirds of the way up in the cylinder. 



In operation, water under jiressure is admitted above the fixed 

 piston / to raise the cylinder F and press head, and when further 

 upward motion is stopped by plate H, water under pressure is 

 admitted under the piston E to straighten out the toggle-joints 

 and compress the tire cover. [Dunlop Rubber Co. and C. Mac- 

 beth, British patent No. 11,732, 1914.] 



-both of 



■Y^-^i' 



157,694. 

 157,751. 

 157,759. 

 158,278. 



158,284. 



159,792. 

 159.840. 

 159,895. 



159,947. 



160.075. 



OTHER MACHINERY PATENTS. 



UNITED STATES OF AMERICA. 



ISSUED OCTOBER 19, 1915. 



Collapsible core. T. Midgley, Sr., and T. Midgle> 



VV.,rtliin|.;lon, ( Ihio. 

 Mill. I .1 ' 1. ling collapsible cores. T. Midgley, Sr., and 



I .1 linih of Worthington, Ohio. 



In,, 1 innar, Akron, Ohio. 



Ki.i.ii: ;ii!' I I i C*. Taarud, Minneapolis, Minn. 



laking hollow rubber articles. F. T. Roberts, 

 nton, N. T., assignor to The Aranar Co., Cleveland, Ohio. 



(See The InIjia Rubber World, August 1, 1915, page 600.) 

 ISSUED OCTOBER 26, 1915. 

 Process of insulating wire. O. T. Hungerford, Belleville, N. J. 

 Repair vulcanizing apparatus. J. W. Arthur, Warren, Ohio. 

 Dental vulcanizer attachment. T. T. Cater, Columbus, Kan. 

 Wrapping machine. W. B. Pierce and F. M. Pierce, assignors 



to Pierce Wrapping Machine Co. — all of Chicago, 111. 

 Apparatus for splicing inner tubes. H. Raflovich, New York, 



N. Y. 

 Vulcanizer. C. A. Shaler, Waupun, Wis. 

 Machine for wrapping coils of wire. F. M. Pierce and W. B. 



Pierce, assignors to Pierce Wrapping Machine Co. — all of 



Chicago, 111. 

 Wrapping machine. F. M. Pierce and W. B. Pierce, assignors 



to Pierce Wrapping Machine Co. — all of Chicago, 111. 

 ISSUED NOVEMBER 2, 1915. 

 Tire making machine. J. Koch and J. F. Zimmerman — both of 



Akron, Ohio. 

 •IuIh vulcanizer. F. W. Kremer, Rutherford, N. J. 

 PiilvLri.-niR machine. Dominique Vecchini, New York, N. Y., 



assignor to Franco-American Rubber Co., Wilmington, Del. 

 Repair vulcanizer. D. P. Einrem, Springfield, S. D. 



ISSUED NOVEMBER 9, 1915. 

 Bead tool. F. F. Brucker, assignor to Miller Rubber Co.— 



both of Akron, Ohio. 

 Tire mold. G- J. Paynter, Philadelphia, Pa. 

 Tire building machine. W. H. Hermann, Lancaster, Ohio. 

 Machine for making tubes and tires. C. A. Cauda, Eliza- 

 beth, N. J. 

 Mechanism for winding insulated electric cables. G. A. Johnson, 



Newark. N. J. 

 Tire making maci.ine. -A. H. Harris, Youngstown, Ohio. 



UNITED KINGDOM. 

 ISSUED OCTOBER 6, 1915. 

 il4>. Ilrush with bristles set in rubber. W. J. Mellersh-Jackson, 



J8 Southampton Buildings, London. 

 114). Brush with bristles set in rubber. W. J. Mellersh-Jackson, 

 28 Southampton Buildings, London. 

 ISSUED OCTOBER 13, 1915. 

 114). Ucvulcanizer. M. Chapel and T. Thiberville— both of 41 



Boulevard des Capucines, Paris. 

 114). Testing golf balls. S. H. McQuown, "Wathcote," Park 



imbridge, Massachusetts, U. S. A. 

 ISSUED OCTOBER 20, 1915. 



Budapest, Hungary. 

 ISSUED NOVEMBER 3, 1915. 

 Braiding machine. J. Lundgren, 3357 N. 15th 

 adcl.jhia, and Carlson- Wenstrom Manufact 



THE GERMAN EMPIRE. 

 PATENTS ISSUED (With Dates of Validity). 

 (.March 6, 1912). Tire making machine. The l)e Laski & Tliropp 

 Circular Woven Tire Co., Trenton, N. J., U. S. A. Represented 

 by M. Loser and O. H. Knoop, patent-lawyers, Dresden. 



