September 1, 1915.] 



THE INDIA RUBBER WORLD 



661 



The roller F is made up of separate rings held in position on 

 the shaft G by vertically yielding springs. It is mounted in the 

 swinging bracket // which is held in a raised position i>. thi 

 spring rod / and regulated by the wing nut /, The bracket // 

 yields to accommodate soles of different thii km -s and the spring 

 controlled rings of the roller F force the thinner portions of the 

 sole into contact with the cement roller E. [Gideon J. Julian, 

 assignor to l'nited Shoe Machinery Co., L'nited States patent 

 No. 1,145,'Wo | 



OTHER DEVICES. 



A New Tire. — McNaull's latest patent covers a novel method 

 oi attaching the beads to the fabric that forms the casing, Each 



head is made up of three groups of wires. The margins of the 



six strips of fabric which extend across the tire, forming the 

 casing, are folded around each opposite group of wires. An ad- 

 ditional strip of fabric extends across the inner side of the casing 

 covering the three opposite groups of wires, its margins over- 

 lapping the outside groups of wires and their coverings. [ William 

 D McNaull, l'nited States patent No. 1.147.032.] 



Automatic Machine for Making ruBut \i< Fabric- Subers 



has patented a machine for making unwoven laminated tubular 

 fabric in continuous lengths on horizontal, moving mandrels from 

 bands of cords previously impregnated with rubber. [Lawrence 

 A. Subers. United States patent No. 1,145,446.] 



A Portable Electric Vulcanizes. — It is a small and compact 



car vulcanizer, operated by electric current of low voltage that 

 is available from the storage battery usually carried in auto- 

 mobiles for lighting and ignition. | Oliver C. Dennis. L'nited 

 States patent No. 1.147.K47.| 



Improved Slitting and Rewinding Machine.— Cameron has 

 invented a new slitting method by which the spreading of the 

 cut material is avoided. The circular cutter has two cutting 

 edges which sever the web, producing a thin narrow strip which 

 is either rewound with the cut sections or removed from the 

 machine. [James A. Cameron and Gustaf Birger Birch, as- 

 signors to Cameron Machine Co. l'nited States patent No. 

 1,148,146.] 



Method of Making Water Bottles. — The body and neck por- 

 tions are molded in a single piece over a core. The neck is 

 formed with an opening so that the core can be withdrawn. 

 [George E. Hall. L'nited States patent No. 1,148,226.] 



Inner Tube Testing and Tire Carrying Device. — This is an 

 annular trough-shaped receptacle made of any material that will 

 hold water. It serves the two-fold purpose of a device for testing 

 inner tubes for leaks and a tire-case adapted to be carried on the 

 tire-holder of an automobile. [Jacob Closz. L'nited States patent 

 No. 1,148,287.] 



Air Hag for Repairing Tires. — The bag consists of an inner 

 tube and valve with outer covering of frictioned duck. It is 

 used in the ordinary mold for repairing tire casings and when 

 inflated holds the patch under compression and the outer surfaces 

 firmly in contact with the walls of the mold. [Alvin L. Johnson 

 and Alfred O. Alsten. L'nited States patent No. 1,148,171.] 



Machine for Armoring Air Brake Hose. — In the manufac- 

 ture of rubber hose for railway service and particularly the 

 hose sections coupling the locomotive and tender, it is desirable 

 to reinforce the hose by winding with wire. Sill has invented a 

 simple and effective machine for doing this work. [Samuel J. 

 Sill, assignor of one-half to Herbert II. Hewitt. L'nited States 

 patent No. 1,149.224] 



Method of Making Cord Tires. — The cords are made by 

 twisting rubber-impregnated strands around a core of soft rubber. 

 These are cut into equal lengths and laid parallel to one another 

 on the annular core at an angle of 60 degrees. The bead cores 

 are then applied and a second ply of cords is laid over the 

 first at a reverse angle. [Richard Griffith, assignor to Miller 

 Rubber Co. L'nited States patent No. 1,149.364.] 



Pressure Cure Vulcanizer. — Boots and -hoes are vulcanized 



by bi I and enclosed m an envelope and then 



ted to the action of beat and pressure in a vulcanizer. 



The envelope I with the air or live steam, thus 



eliminating oxidation. [Apsley Rubber Co., British patent No. 

 0.7(1.!, 1914.] 



The l'nited States patent \'o. 1,091 mted to William G. 



Mill, assignor to Vpsley Rubbei [ o. Hudson, Massachusetts. 

 apparentlj identical with the above, was illustrated and described 

 in The India Rubber World, Maj 1. 1914. 



Manufacturing Continuous Lengths oi Son Rubber I 

 in \in W 1 1 ii II -mi Ri bber. Solid tires with hard rubber founda 

 tion or solid tiro with a metal rim. covered on both sides with 

 hard rubber, are made by Gare's process. The soft and bard 

 rubber compounds are separately fed into the mold, when 



are formed and compressed by a plunger. The two bodii 



brought in contact before passing through the heated pan of the 

 mold, where they are vulcanized together and extruded from 

 the machine, a molded tire on a hard rubber foundation. 

 [Thomas Gare, l'nited States patent No 1 146,699.] 



A Belting \m> Sheet Calender Wi.< vnizer.— Belting, water- 

 proof fabrics and sheet are calendered and vulcanized by passing 



them around a series of heated pressure rolls. [P. M. Matthew. 



British patent No. 5,464.1 



A New Braiding Mai mine. Pneumatic tire- are m 

 vertical braiding machine adapted to support and slowly rotate 

 a core upon which the casing is braided. W hen the braiding is 

 finished the core is removed from the machine, the casing slitted 

 around the inner circumference .if this core and the braided fab- 

 ric removed for subsequent treatment. [W. II. Dunkerley and 

 T. J. Arnold, British patent No. 7,226, 1 



A NEW OVERFLOW TRIMMING PRESS. 



The automatic machine shown in the accompanying illustration 

 lias been recently designed for trimming the rind or overflow 

 fmm rubber heels, soles, horseshoe pads, valves and other me- 

 dian; made 

 in molds. 



It is constructed 

 on the princi] i 

 an ordinary be It- 

 driven punch press 

 with a reciprocating 

 plunger and ope- 

 rated by the usual 

 trip r..d. The heel 

 die consist! of two 

 sliding jaws corresponding to 

 the curve of the back and 

 sides oi the heel, and a 

 tionary breast with a cutting 

 attai hed. The die parts 



are fastened to the sliding 

 carriage, which is moved in 

 and out by the handle shown 

 in the illustration. 



I ' - ■ iperate the machine, thi 

 hei 1 to be trimmed is placed 

 in the die cavity and the car- 

 pushed f o r w a r d , 

 ^pP ^9 winch action trips the • 



The plunger head d( 

 and strikes on the two vertical pins which force the sliding jaws 

 together. These close tightly around the heel and against the 

 i, cutting through the overflow. The press then comes to 

 a full stop. When the carriage and die are drawn out. the ejector 

 throws out the trimmed heel, and another heel is placed in tin- 

 die cavitj and the operation repeated. [Rumrill & Co., Bo 

 Arthur J. Wills. North Brool eld, Massachusetts, sali 



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