388 



THE INDIA RUBBER WORLD 



[April 1, 1915. 



This turns thi j drum and the cord is wound around 



it. raising the counterweight, which places a tension on the 

 fabric that is even and continuous throughout the operation. 

 *, ~ soon as a strip oi fabric lias been wound on the core, the 



c 



// 



A — Revolving Frame. B — Tension Roller Shaft. C — Tension Roller. D — 



Jaw I lutch. E — Grooved Drum. F — Counter Weight. G — Clutch 



Lever. H — Clutch Operating Shaft. / — Brake. J — Brake Arm. 



operator moves the lever downward, therebj throwing out 

 the clutch and applying the brake to the drum. [United 

 States patent No. 1.127,494.] 



VULCANIZING APPARATUS. 



"TMIK V tratus for vulcanizing footwear is operated 



•*■ as follows: The vulcanizer is heated preparatory to the 

 introduction of the footwear. The goods are placed in the heater 

 and the door is closed. The air is exhausted by the vacuum 

 pump and the low pressure and the heat remove air and other 

 gases from the rubber. This serves to compress the footwear 

 on the lasts. The vacuum pump is then stopped, the vacuum 

 broken and communication established with the preheater, which 

 causes the pressure pump to become active by release of pres- 

 sure in the temperature regulator. The action of the pump 



A — Vulcani7er. IJ — Preheater. C — Vacuum Pump. D — Pressure Pump. 

 E — Temperature Regulator. 



continues until the predetermined pressure is reached in the 

 vulcanizer, after which the pump acts either slowly or rapidly 

 nr intermittently, as conditions demand, for maintaining a con- 

 stant pressure throughout the run. At the time the vulcanizer 

 is placed in connection with the preheater the steam employed 

 as the heating agent for the vulcanizing medium is exerting its 

 influence on the same within the coil of the preheater. The 

 pressure pump fills the chamber and gradually raises the tem- 

 perature to the limit set upon the capacity of the preheater by 

 the adjustment of the regulator scale beam. When the tem- 

 perature reaches this limit it is maintained until the completion 

 of thi [United States patent No. 1,125.609.] 



SOLVENT RECOVERY APPARATUS. 



T -1 !!!-. illustration shows Boeder's solvent recovery apparatus ap- 

 *■ plied to a slabbing machine used for making "IT" packing. 



I In two horizontal rolls are 

 enclosed in a casing and prac- 

 tically divide it in two com- 

 partments. The inclined sides 

 of the lower •compartment 

 are provided with pipes 

 through which cold water cir- 

 culates. There is also an 

 opening for discharging t he- 

 condensed solvent. Hand 

 holes on the front and back 

 communicate with the inte- 

 rior of the casing. [British 

 patent No. 22.638.] 



JU_ 



A— Large Roll. B— Small Roll. C— 

 Casing. D — Water Pipes. E — Hand 

 Holes. 



IMPREGNATING AND SHEETING FIBERS. 



c 



OTTON or other fibers are impregnated with rubber and 



formed in a sheet by Dew's machine. 

 I'hick layers of liber are fed from a trough, between the feed 



B — Feed Trough. D — Feed Rollers. E — Comb Device. F — Presser 

 Rollers. G — Fiber Guide. H and / — Solution Rollers. K — Presser Roller. 



rollers and over a comb device by which the fibers are laid 

 parallel to one another. They are then passed between presser 

 rollers, through a guide and between the solution rollers. These 

 rollers dip in a solution of rubber and the presser roller re- 

 moves the surplus. (British patent No. 11,731.) 



NEW STYLE SLITTING AND COILING MACHINE. 



/"'AMERON'S latest machine is designed to handle all sorts 

 ^"* of problems in slitting and coiling various kinds of ma- 

 terials, such as sheet rubber, rubber-coated fabrics, paper and 

 other materials used in the form of a narrow strip. 



It is equipped to measure the yardage accurately, as a check 

 on waste or loss, and will cut the material in the width of strip 

 required in any size of coil. It produces firm rolls with even 

 edges and of uniform tension, without requiring the goods to 

 be actually stretched 



The Cameron principle consists in the use of a "cleaving" or 

 "scoring wheel." which presses through the material rather than 

 cuts through it. This scoring wheel is a circular disc having a 

 V-shaped edge, blunt and mounted on a ball-bearing center, and 

 pressed with a spring pressure against a steel cylinder of intense 

 hardness having a highly polished smooth surface. The sev- 

 ered strips have a perfectly clean edge and will not only remain 

 free from raveling on the edge but in the unwinding of the coils 

 there is no tendency for the threads to become untangled and 

 unravel at the edges. This fact is of prime importance in cable 

 winding strip of all kinds and in insulating strip sold to the trade. 



The rewinding apparatus which rolls up the goods following 

 the slitting is known as the "Surface Rewind." It consists of 

 two supporting rolls, of which the cutter roll is one and the 

 riding roll, which presses upon the upper surface of the coils 

 and holds them in uniform contact with the supporting rolls, is 



