94 



THE INDIA RUBBER WORLD 



[November 1, 1913. 



B is mounted on a roller bearing T so that it will easily follow 

 the direction of the core C. 



As each la>'er of fabric is placed on the core, various rolling, 

 compressing and stitching tools carried by the arm D are brought 

 into play to form the material closely about the core. This arm 

 is pivoted to the base at U so that it may be swung around to 

 present the various working tools to the tire. After each layer 

 of fabric is laid on the core, a stock rack is moved over in line 

 with the tire. This rack contains the various materials entering 

 into the tire and these are fed onto the latter in layers by means 

 of a carrier. For this purpose the core is made to rotate in the 

 opposite direction. After each layer of material is laid in place 

 by the carrier the rack is swung out of position and the arm D 

 with a suitable tool is swung back to work the material into a 

 finished surface. These operations are continued until the tire is 

 built up. In order to place the wires in the beads or rim edges, 

 the core is turned to a horizontal position, first on one side and 

 then on the other. 



This machine is claimed to greatly facilitate the manufacture 

 of tires owing to the fact that the core may be power-driven at 

 varying speeds, and also for the reason that the tool arm and 

 stock rack can be moved away from the core and the latter 

 turned to various positions. This makes it easy for the operator 

 to reach all parts of the tire to perform the trimming and fin- 

 ishing processes. [U. S. Patent No. 1,042,649.] 



A SURFACE SPEED rUDICATOR. 



In almost every machine there is a certain speed at which the 

 greatest amount of work is turned out or at which the greatest 

 efficiency is obtained. This is especially so in rubber working 

 machinery. For this reason it is often of advantage to know the 

 approximate speed at which the surface of a pulley is traveling 

 without having to calculate it from the revolutions. The illus- 

 trations show an attachment intended for this purpose, and whicli 

 has been designed for application to an ordinary shaft speedom- 



ARMORING MACHINE FOR HOSE AND CABLE. 



Surface Speed Indicator On and 

 Off Speedometer Shank. Wheel 

 IS Rubber-Tired to Prevent Slip- 

 ping. 



eter. It consists of a rubber-banded wheel which may be in- 

 stantly slipped on or off the spindle, and which in operation is 

 pressed against the face of a shaft or pulley for a definite period, 

 such as a minute. By dividing the resulting revolutions of the 

 dial by 2, the number of feet per minute the surface of the object 

 is traveling is obtained, since each turn of the small rubber-tired 

 wheel means a linear movement of six inches. The device is not 

 claimed to be exactly accurate, but adequate approximate results 

 are obtained by its use. IThe L. S. Starrett Co., Athol. Massa- 

 chusetts.! 



A citizen of Sabine, Texas, has invented a life preserver con- 

 sisting oiE two tubular rubber belts, one going around the waist 

 and one fastening under the chin. The idea is to inflate both 

 of these with air and fasten them properly in position and then 

 float as long as the emergency may require. 



A MONG the rubber working machines which have been re- 

 ^~*- cently placed on the foreign markets, is an automatic device 

 of simple construction for placing reinforcement on hose. It is 

 designed especially for winding metal armor rm rubber hose or 



Machine for Winding Metal Armor on Hose. 



cable, but may also be employed in cciiling sheet iron, rope, etc., 

 and it will handle round, half-round or flat wire equally well. 

 The hose to be armored is coiled on the reel .) and passed 

 through the hollow- shaft B, emerging from the opposite end. 

 The wire armor is wound on the reel D and the loose end passed 

 over the pulley E, from which point it is carried up to the guide 

 F surrounding the hose G. As the receiving reel H is set in 

 motion through a belt from the transmission shaft, the hose is 

 pulled forward at a definite speed. Another belt sets the shaft 

 carrying the coil of wire in motion, so that the armor is evenly 

 coiled around the hose. [W. Furstenbcrg. Bruxelles-.'^nderlecht. 

 Belgium.] 



A CONVENIENT TIRE WRAPPING MACHINE. 



One of tile newer tire wrapping machines, designed for auto- 

 matically wrapping the treads of automobile tires preparatory to 

 vulcanizing, is shown herewith. The tire lies flat on the table 

 and horizontal rollers and is made to revolve horizontally 

 against the stationary rollers in the rear and the adjustable 

 rollers at the front as the tread is wrapped. The rotary drum 

 carries a spool upon which is wound the tape for wrapping the 

 tire. This drum revolves on fiber rollers and is driven by tw& 



Miller Tire Wrapping Machine. 



belts. As the drum revolves it carries the spool around with 

 it, wrapping the tape tightly around the tread. At the same 

 time the tire advances latterally so that when it has made one 

 complete revolution the tread is entirely covered. This ma- 

 chine is built for operation either with nr without an electric 

 motor, and weighs, ready for shipping, 800 pounds. [Charles 

 E. Miller, Anderson. Indiana] 



