THE INDIA RUBBER WORLD 



[Jan I 



ANTI-WRINKLrNG DEVICE FOR SPREADERS. 



To prfvc-iit wrinkling of the Cloth while it is passing 

 through the spreading machine, the following devices are 

 of interest: 



The one shown first in the illustration is used nn top of 

 the machine and rests on ilu- pipe coil ilirectlv in front of 



tail roller, special 

 grooves being pro- 

 vided on the under 

 side of the device for 

 this purpose. 



The other is used 

 on the under side of 

 the spreading machine. It is attached under the frame sev- 

 eral feet ahead of the wind-up roller. The cloth runs under the 

 angle rollers and the proper tension is gained by the movable 

 counterw^eight on the projecting arm. [The American Tool & 

 Machine Co., Boston, Massachusetts.] 



MACHINERY PATENTS. 



A UNIVERSAL TIRE BUILDING AND WRAPPING MACHINE. 



HARRIS has invented a universal wrapping machine designed 

 to make cord tires, frictioned fabric tires, to cloth-wrap 

 tires for open curing and, linally, to wrap the finished tire with 

 paper strips to avoid damage in shipping and while in stock. 

 The diagram is a 

 front elevation. Belt 

 rollers A are elevated, 

 as shown by the dot- 

 ted lines, and a pair 

 of steel bead rings B 

 are introduced into 

 the side grooves of 

 the endless belt C. 

 This belt C now 

 serves to rotate the 

 bead reinforcing 

 members B m the di- 

 rection shown by the 

 arrow. A bobbin D 

 carrying a supply of 

 rubberized cord or 

 tire fabric is rotated 

 together with shuttle 

 E, and the end of the 

 cord is led over tension rolls to one bead ring. When the driving 

 mechanism is started, the shuttle E and the bead rings will be 

 rotated in a clockwise direction at varying speeds in interlinked 

 relation, the cord being thus wound in closely adjacent loops 

 over and around both reinforcing bead rings until the entire 

 space is covered by adjacent parallel strands collectively form- 

 ing a hollow, flat, tube-like, two-ply annular body material for the 

 tire. A repetition of this winding process will produce a four- 

 ply body material built upon the same bead rings, and so on, 

 until any desired number of superimposed layers of rubberized 

 cord or tire fabric have been added. By varying the relative 

 speed of the shuttle and the bead rings, a different angle of ap- 

 plying tlie cords may be obtained— a feature very desirable in a 

 carcass huilt up in this fashion. [A. H. Harris, Youngstown, 

 Ohio, United States patent No. 1.160,075.] 



DIPPING MACHINE FOR MAKING NIPPLES. 



This is Mahonc\ 's newest machine for forming nipples, medi- 

 cine dropper bulbs, linger cots and similar articles by dipping. 

 The side elevation shows the more novel features of the de- 

 vice, which is in the form of a reel that revolves on a shaft 

 driven by chain gear- 

 ing from the main 

 shaft. The reel sup- 

 ports nine shafts with 

 carrying heads, each 

 head composed of a 

 frame holding four 

 sets of forms fastened 

 in grooves E. Dip- 

 ping tanks B are 

 hlled with the rubber 

 solution and forms A 

 are applied to the 

 boards C, which are 

 placed in position in 

 the head of the frame 

 D When the forms 

 are in position cams 

 F raise the tanks B, 

 causing the forms to be immersed in the solution to a predeter- 

 mined depth, after wliich the tanks recede. Then the pinion G 

 is moved through about 140 degrees, and tbe ratchet mechanism 

 advances the carrying head D one step, thus bringing the next 

 set of forms in position over the dipping tanks. When this 

 has been accomplished, the set of forms which have already 

 been inmmersed have been moved forward about 36 degrees, 

 placing the forms almost vertically above their original positions, 

 thus permitting each deposit of solution to dry. 



When a sufficient number of immersions have taken place 

 to produce the desired thickness on the forms, the lowermost 

 dipping board of the frame is removed and a new one inserted. 

 In this way the operation of the machine is made continuous. 

 [J. L. Mahoney, New Haven. Connecticut, United States patent 

 No. 1,160,923.] 



BOOT AND SHOE SOLE ROLLING MACHINE. 



Instead of using the pressure of a hand-roller in attaching the 

 unvulcanized sole to the bottom of a rubber shoe, Hemenover 

 has invented a machine to do this work. 

 Tlie sole A is applied to the last and is clamped down against 

 the flexible pad B 

 by the pivoted hold- 

 down bar E, the 

 underside of the 

 knitted fabric dia- 

 phragm C resting 

 on the bottom of 

 the chamber D. Compressed air is admitted to this chamber 

 through the pipe F, and its pressure causes the diaphragm and 

 pad to be wrapped around and pressed tightly against the lower 

 parts of the shoe, thereby causing an evenly distributed pressure 

 on all parts of the sole, which in turn causes the latter to adhere 

 closely to the shoe body. The vertical latch lever G holds bar E 

 in clamping position and is pivoted to the frame H. The teeth / 

 on this bar engage abutment / on the hold-down bar, thus 

 making it easy to apply the latter to the last. 



After the pressure has been left on for a short time, the valve 

 K is turned to exhaust the chamber D, and a further turning 

 of the handle L then automatically releases the last when 

 the extension of this handle engages the lever G and re- 

 leases the hold-down bar E. [W. E. Hemenover, assignor 

 to The B. F. Goodrich Co., Akron, Ohio, United States 

 patent No. 1,160.983.] 



