THE INDIA RUBBER WORLD 



415 



londi- 



PNEUMATIC TIRE VULCANIZING BAG. 



This iincntiiin rolatts to annular fluid pressure bags which 

 are employed in vulcanizing certain type^ <<i imeumaiic tire 

 casings, such as cord tires, to hold them 

 tion while being cured. Referring 

 1(1 the illustration, .1 is an annular 

 inflatable bag made of frictioned ^- 

 fabric, suitably reinforced and \ 

 thickened at the base or inner 

 wall by extra plies of fabric. The 

 shield B is composed of the same 

 materials and is attached by its 

 irner margin to the i)ase of the bag, forming a continuous an- 

 nular flap. Tins is prevented from adhering to the bag during 

 vulcanization by dusting the surfaces with talc. 



Afterwards the collapsed l)ag is inserted in the casing C. the 

 head ring D is applied and the tire placed in the vulcanizing 

 mold E. The bag is then inflated by fluid pressure applied 

 through the tube /'. transmitting uniform pressure through the 

 shield flap to all adjacent parts of the inner tire wall. Thus 

 ridges in the latter are avoided, and at the same time the shield 

 acts as a protector against possible overheating of the vulcaniz- 

 ing bag. [J. J. Johnson. Jr., and J. R. Gammeter, both of Akron, 

 Ohio, assignors to The B. F. Goodrich Co. of New York City. 

 United States patent Xo. 1,177,112.] 



P,\CKi.\G Cutter. — Square or round packing can be accurately 

 cut at the desired angle by this machine, producing smooth, per- 

 fect fitting ends. [R. .\. Landry, Houston Heights. Texas. 

 United States patent Xo. 1,176,838.] 



PxEVM.\TK' Tire Mold. — It is a two-part annular mold with 

 interchangeable tread forming rings and inside and outside 

 rings for aligning the mold parts. Pressure is applied to the 

 interior of the tire by a water inflated bag. [G. E. Batcheller, 

 New York City. United States patent Xo. 1.175,681.] 



BRITISH AND FRENCH PATENTS. 



Ei.-\siic F.vBRics. In making fabric for surgical elastic hos- 

 iery, rubber threads covered with ordinary cotton thread are ar- 

 ranged in pairs forming the warp, while non-elastic threads are 

 used as the rtller, thereby producing an open mesh elastic fabric 

 I A. F. Porter, 12 .\ldersgate street, London, England. British 

 patent Xo. 23,561 (1914).] 



Aeroi>l.\xe wheel .\xd ri.m. The object of this invention is 

 to permit rapid mounting and de-mounting of tires having wired 

 or inextcnsible beads, yet prevent lateral displacement of the 

 tire when fitted to the rim. [Dunlop Rubber Co.. Limited. 14 

 Regent street, London, and Colin Macbeth, Aston Cross. Birm- 

 ingham. England. British patent Xo. 2,638 (1915).] 



Overflow Tri.viming M.^chine. — This invention comprises a 

 rotary cutter operating in conjunction with an adjustable table 

 and a lever for holding the material in contact with the cutter. 

 [Edwin Harrison. Brook College, Leyland. Preston. England. 

 British patent No. 5.218 (1915).] 



E.MBOSsiNG Shoe C.\lender With Ixterch.v.vce.vble Design- 

 Sleeves. — The embossing roller is removable and is provided 

 with interchangeable sleeves bearing the engraved designs and 

 patterns desired to be impressed on the rubber. [Charles \\'ool- 

 lett, 176 Rice Lane, Walton, Liverpool, England. British patent 

 Xo. 460 (19161.1 



Exi'.vxDiNG ViLC.\xiziNG MoLD. — In making linings for pneu- 

 matic tires an expansible body of zinc provides for the ex- 

 pansion of the mold parts when heated. [T. Sloper. Southgate 

 Devizes. Wiltshire. England. British patent No. 22,995 (1916).] 



Method of Making Tire Casings. — The outer covers of pneu- 

 matic tires are generally built up with fabrics coated with a rub- 

 ber solution, and cut bias at an angle of about 45 degrees. The in- 

 ventor inserts between the superimposed canvas layers a woven, 

 fabric cut bias. This fabric is coated and equally elastic in 

 both directions, viz., in the plane of the wheel and in the direc- 

 tion perpendicular to the said plane. Its intemled purpose is 



to provide equal resistance in both directions. [M. Laroche. 

 French patent No. 47,825 (July 25, 1914.).] 



Machine for Making Ixl.md i.r Mosaic Work.— The material 

 which forms the foundation or backing for the inlaid work, is 

 supported by rollers which communicate to it a forward move- 

 ment. A series of mechanically controlled "die" rollers arranged 

 above the supporting rollers, cuts out the pieces forming the 

 mosaic which are ejected and placed on the foundation to which 

 they are firmly attached, forming the design. [E. T. Fenwick. 

 French patent Xo 478.210 (March 31. 1915).] 



OTHER MACHINERY PATENTS. 



THE UNITED STATES. 



66. Skiving nunchim-. .1. H. Reed assignor of one-half to D A 

 Sutherland— both uf Lynn, Mass. 



machine. T. Midgley, Worthington, Ohio 



176,686. W 



,-^„„- ^PV^'."'' '° Morgan & Wright, Detroiir Jiich. 

 1/6,883. .Method and core for building tire casings. W. R. Denman 

 on, Ohio. 



, , , ,, . ,,. , ■ - - Morgan & Wright 



both of Detroit, Mich. 



177.755. Collapsible core. A. .\damson, .\kron, Ohio. 



177.756. Collapsible core. A. Adamson, Akron, Ohio. 



l//,833. Mold for making rubber heels. I. G. Tufford, assignor to The 



I. T. S. Rubber Co.— both of Elvria, Ohio. 

 178,908. Feeding device for tubing machines. G. F. Fisher, Plainf.eld 



X. J., assignor to Morgan & Wright, Detroit, Mich. 

 1/8,974. Tire making machine. P. D. Thropp and I. E. Thropp, and 



A. de Laski— all of Weehawken, assignors to The de Laski 



and Thropp Circular Woven Tire Co., Trenton — both in New 



.Tersey. 

 179.033. Method of and apparatus for reinforcirg inflatable tire tubes. 



.7. H. Poole, assignor to Reinforced Inner Tube Co.— both of 



rockton, Mas; 



179,077. Machine for forini 



ricach Citv. Ohii 



179,200. Means for Jplicing 



ubber tubes and the like. E. S. Currer 

 liable tubes. D. Lowe, East .\kron, Ohi 



THE UNITED KINGDOM. 



2i.22i ( 



-'3,224 (1914). Ma 



Ohi( 



ing rubber. S. C. 

 Belfast. 



on building. 



A. Suber 



Mar 



I-."" \\-.~t r : i ■:'..(. Cleveland, Ohio 

 liiialed fabric b.nn.ls. S. A. Subers, Marion 

 building. 1270 West Third street. Cleveland, Ohio. 

 23,590 (1914). Molding tires. W. Reid. 8 Albert Drive, Pollokshields, and 

 .1. Stungo, 157 St. Vincent street— both in Glasgow. 



THE DOMINION OF CANADA. 



NEW MANUFACTURING PROCESSES. 



Pressire CiRE. — Rubber articles, hose tubes and tlie like are 

 subjected to vulcanizing heat and external fluid pressure in a 

 closed chamber, then a cooling liquid is admitted to the chamber 

 while the goods are under pressure. [John M. Bierer, assignor 

 to Boston Woven Hose & Rubber Co., Cambridge, Massachusetts. 

 L'nited States patent Xo. 1,177,678.] 



IxxER Tvbe Made of Gut. — The interior or exterior of the gut 

 is impregnated with rubber or a similar solution which improves 

 its resiliency as well as increasing its impermeability to air. 

 These inner tubes can be made with or without seams, in one 

 piece or in several parts, according to the size desired, and are in- 

 tended for automobile, motorcycle and bicycle tires. The tube is 

 provided with a valve through which air or any other material 

 can be forced into it. [Wilhelm Pook, Marienthalerstrasse 126. 

 Hamburg. Germany. German patent Xo. 640.924.] 



OTHER PROCESS PATENTS. 



THE UNITED STATES. 



111. 



iig fabr 



K. Ma 



23.069 

 •23,222 



J. Melle 

 Third str 



THE UNITED KINGDOM. 

 (1914). Tubular fabric for cotton fire hose. V 



Jackson, 28 Southampton Buildings, I.oi 

 (1914). Compound fabrics. I.. .\. Subers, 1270 Wi 



Cleveland, Ohio. 

 (1914). Compound fabrics. 1.. A. Subers, 1270 West Third 



Cleveland, Ohio. 

 (1914). Compound fabrics. L. A. Subers, 1270 West Third 



Cleveland, Ohio. 



THE FRENCH REPUBLIC. 



