502 



THE INDIA RUBBER WORLD 



[May 1, 1920. 



nished for application to any hand-operated portable elevator. 

 (Revolvator Co., Jersey City, New Jersey.) 



A DISK. TYPE FRICTION CLUTCH. 



The simplicity of construction and the mechanical features 

 embodied in the friction clutch here shown should recommend its 

 use to rubber engineers. 



The continuous fric- 

 tion surfaces consist of 

 three parts that are 

 dust proof. The fric- 

 tion plate on the stand- 

 ard clutch is lined on 

 both sides with contin- 

 uous hard maple seg- 

 ments and can be re- 

 moved for rehnii 

 without disturbing the 

 other parts. For special 

 conditions the friction 

 plate may be fitted 

 with asbestos fiber, vul- 

 ■canized fiber, or other 

 friction surfaces. The 



pressure developed by the double toggles is such that the larger 

 sizes of clutches are readily engaged and disengaged by means 

 of ordinary hand levers, without the use of geared operating 

 devices. The positive action of the double toggle movement in 

 both directions, engages and disengages the clutch without the 

 use of springs. The adjustment for wear is made entirely by 

 one adjusting collar only, giving a uniform pressure on all parts 

 of the friction surfaces. {A. Planiondon Manufacturing Co., 12-24 

 North Clinton street, Chicago, Illinois.) 



N^ 



The Pl-\mon'don Clutch and Ge.\r. 



Battery Se['-\rator Machine. 



1,333,927. 

 1,334,185. 



1,335,150. Mold 



OTHER MACHINERY PATENTS. 

 THE UNITED STATES. 



33,882. .'Xpp.ir.-iliis for trimming heel-pads, rubber soles and tips 



for boots, etc. J. Sumner, Lcyland, assignor to Wood-.Milne, 



Limited, Manchester — both in tngland. 

 Tire-making machine. E. C. McGraw, assignor to The McGraw 



Tire & Rubber Co.— both of East PalesUne, O. 

 Machine for making tire casings. W. C. Stevens, assignor 



to Firestone Tire & Rubber Co.— both of .'\kron, O. 

 Mold for tires. M. L. Mu.iger, Lincoln. Neb. 

 Air bag with removable outer surface layer, for vulcanizing 



pneumatic tires. F. Fcnton, assignor to The Miller Rubber 



Co.— both of Akron, O. 

 Apparatus and method for removing entrapped air from un- 



cured rubber articles. T. Midgley, Springfield, assignor to 

 opee Falls — both in Massachusetts. 



1,335,353. 

 1.335,783. 

 1,335,879. 



1,336,220. 

 1,336,319. 



1,336,328. 

 1,336,329. 



Mo 



nd proce 



for 



making 



Anderson 



Ues 



MACHINERY PATENTS. 

 MACHINE FOR MAKING STORAGE BATTERY SEPARATORS. 



» COMPOSITE BODY of rubber and fibrous material for makmg 

 J\ porous battery separators is formed on the machine here 

 shown in side elevation and plan. 



A strip of soft unctired gum A is fed on the steam heated 



drum B, and a 

 arge number of 

 cotton threads 

 from spools C 

 are passed over 

 guide D and 

 around pressure 

 roller E. Sup- 

 plementing the 

 internal heat of 

 the drum, ex- 

 ternal heat is 

 applied to the 

 rubber strip by 

 the curved iron 

 F attached to 

 the pressure-roller lever. .As the drum revolves the threads are 

 practically embedded in the soft rubber strip in a substantially 

 side-by-side position extending across the periphery of the drum. 

 When a strip of the desired thickness is formed, it is cut trans- 

 versely and run off the drum by means of the chute (7 to a 

 receiving table. A suitable number of these strips are superposed 

 and compressed in a press vulcanizer where the composite body of 

 rubber and fiber is semi-cured, after which it is cut into sections 

 of the proper thickness. (Harry L. Boyer, assignor to Joseph 

 S'tokes Rubber Co., Trenton, New Jersey. United States patent 

 No. 1,330,976.) 



Air bag for vulcanizers. J. H. Smith, San Francisco, Calif. 



Repair vulcanizers. A. A. Dorsey, Lawrence, Kans. 



Apparatus and method for building pneumatic tires. B. Dar- 



row, assignor to The Goodyear Tire & Rubber Co.— both of 



Akron, O. 

 Repair vulcanizer. \V. A. Gwynn, assignor to S. E. Gwynn — 



both of St. Louis, Mo. 

 Machine for placing washers in rubber-heel molds. B. W. 



Martin, ZanesviUe, and H. Sams, Akron— both in Ohio. 

 Apparatus for wrapping and unwrapping tires. C. Ziegler, Bar- 



Apparatus for wrapping and unwrapping tires. C. Ziegler, Bar- 



THE DOMINION OF CANADA. 



ling machine. W. C^ Stevens, Akron, O., U. S. A. 



of J. Poi 

 Steven 



198,565. 



198,610. 



198,816. 



198,822. 

 198,823. 



Til 



Vulcanizing machine. The City Trust Co., 

 zcl— both of Buffalo, N. Y., U. S. A. 



Apparatus for applying cushi( 

 and C. \V. Steel 



Machine for pre 

 Alta. 



Repair vulcanizer. M. L. Munger, Lincoln, Neb., U. S. A. 



Apparatus for separating tires from cores. The Canadian Con- 

 solidated Rubber Co., Limited, Montreal, Que., assignee of 

 J. J. Shea, Hartford, Conn.. U. S. A. 



'^' - •'' - -- *^' ing machine. The Goodyear Tire & 



■ ^ U. 



Rubber Co 



jf E. 



Nail— both of Akn 



U. 



Vulcanizing apparatus. Firestone Tire & Rubber Co., Akron, 

 assienee of O. F. Beck, Lawndale. and J. W. Speers and R. R. 

 Jones, both of Akron— all in Ohio, U. S. A. 



Segmental tire-core. The Goodyear Tire & Rubber Co., as- 

 signee of C. Wattleworth— both of Akron, O., U. S. A. 



Interlocking tire-mold. The Goodyear Tire & Rubber Co., as- 

 signee of C. Wattleworth— both of Akron, O., U. S. A. 



THE UNITED KINGDOM. 



Drive for rubber mill. F. Iddon, School Lane, Leyland, 



Lancashire. 

 Rubber mixer. Farrell Foundry & Machine Co., 30 Main street, 



assignee of D. R. Bowen, 5 Clover street, and C. F. Schnuck 



of Ansonia 



AUSTRALIA. 

 To Americans. 



shape fabric for cord tires. 



J. D. Thomson, Ohi( 



N' 



198,772. 

 198,821. 



10,077. 

 11,667. 



GERMANY. 



Mold for solid rubber tires, casings, and the like. Leonhard 

 Herbert, Frankfort am Main. (Date of application, October 

 13. 1918.) 



PROCESS PATENTS. 



THE DOMINION OF CANADA. 



7,734. Manufacture of cushion tires. F. W. Strong, Dallas. 



Tex., U. S. A. 

 84. Vulcanizing rubberized fabric or sheet rubber. The City 



Trust Co., assignee of Joseph Porzel — both of Buffalo, N. Y., 



U. S. A. 

 Manufacture of solid tires, with means to permit escape of 



entrapped air during vulcanization. D. E. Goodenberger, 



Akron, O., U. S. A. 

 Manufacture of tires from cord fabric. J. C. Tuttle, Akron, 



O., U. S. A. 

 Preparation of tire tread and side wall stock. The Goodyear 



Tire & Rubber Co., assignee of B. Darrow — both of Akron, 



O., U. S. A. 



THE UNITED KINGDOM. 



Finishing fabric by beetling roll of alternate layers of rubber or 

 rubberized fabric and the fabric to be finished, etc. J. H. 

 Wrigley, 4 Darley Road, Whalley Range, Manchester, and 

 A. B. Henshilwood, 1430 Leeds Road. Thornbury, Bradford, 



AUSTRALIA. 

 To Americans. 



Molding rubber balls. W. J. Spruson, for F. T. Roberts and 

 R. H. Rosenfeld. Cleveland, " " £• * 



Retreading pneumatic 



H. Goldberg, Chicago, 



