February 1, 1917.] 



THE INDIA RUBBER WORLD 



269 



and mold are rotated by an internal gear and pinion driven 

 by worm gearing from the main drive shaft D, and controlled 

 by a friction clutch operated by the treadle E. The large rotary 

 wire brush F revolves in the lower end of a swinging arm G, 

 and is driven by a belt from the main drive shaft D. The brush 

 is moved laterally to accommodate different sized molds by a 

 hand lever H. 



Tire Mold Cleaning Machine. 



The two small brushes /, /. are supported on arms that swing 

 around the vertical shaft /, the angle of the brushes being ad- 

 justed by hand-wheel A'. Adjustments for different mold sizes 

 are obtained by worm gearing operated by hand-wheel L. All 

 the mechanism is fulcrumed on the main drive shaft D so that 

 the large and small brushes may be raised when placing or 

 removing a mold on the table. 



The core cleaning machine is mounted on a base A provided 

 with housings B that support the main shaft C, upon which are 

 fulcrumed the swinging arms D, D. The two belt-driven, rotary 

 wire brushes £, E, are journaled in the ends of the swinging 

 arms, and are held in a central position by a bracket, and ad- 

 justed by a right and left hand screw operated by hand-wheel F. 



The core G is mounted on a carriage H that is moved back- 

 ward and forward by a face cam /; meanwhile the core is being 

 rotated by worm gearing /. A friction clutch operated by treadle K 

 controls the movement of the core and carriage, while the brushes 

 run continuously. Instead of mounting the core on the spider. 



Tire Core Cle.^ning Machine. 



two concave driving pulleys below, with one concave idler pulley 

 above, may he utilized to drive the core, thereby avoiding the 

 time necessary in chucking the core on the spider. Both mold 

 and tire cleaning machines shown in the drawings are operated 

 by belt-power. This, however, is optional, as motor drive may be 

 installed with an additional cost that in most cases is deemed 

 negligible. [R. W. Wheeler, Cleveland, Ohio.] 



MACHINERY PATENTS. 



AN OVEErLOW TRIMMING MACHINE. 



""PHE object of this machine is to remove the surplus material 

 ■*■ from rubber or composition heels, soles and similar molded 

 articles while in the molds. It is here shown in side elevation, 

 mounted on a table A, 

 upon which are placed 

 the molds B, containing 

 the articles to be 

 trimmed. The rectangu- 

 lar frame C is supported 

 on rollers that travel on 

 tracks D, permitting 



movement across the table of the frame on which the carriage 

 is mounted. The carriage comprises two parallel racks £ and 

 pinions F , driven by worm gearing G from the electric motor H 

 by means of belt /. The trimming roller / is journaled in 

 pivoted bearings, and adjustable to increase or diminish the fric- 

 tion of the roller in the trimming operation, and also to com- 

 pensate for different mold thicknesses. The roller is covered 

 with rubber, or any suitable abrading material may be used. 

 It is driven by a crossed belt from the motor countershaft, and 

 as the carriage traverses the table, the roller revolving in the 

 opposite direction removes, the overflow. Upon successive shifts 

 of the frame at each traverse of the carriage all the rows 

 of molds may be successively trimmed. [Harry D. Garber,. 

 Stoughton, Massachusetts, assignor to Plymouth Rubber Co., 

 Canton, Massachusetts. United States patent No. 1,208,944.] 



MACHINE FOE VULCANIZING HOSE IN CONTINUOUS LENGTHS. 



The drawing is a side elevation showing the machine partly 

 in section, mounted on end frames A, A that siipport the bear- 

 ings B, B. of the hollow drum C, which is surrounded 

 by a cylindrical, 

 chambered 

 jacket D. The 

 contacting cyl- 

 indrical faces of 

 both the drum 

 and jacket are 

 provided with 

 spiral grooves 

 E, forming a 

 continuous 

 mold cavity for 

 receiving the hose to be vulcanized in continuous lengths. 



The jacket D is formed in two half-sections that the upper 

 one may be removed when the hose is placed on the drum' 

 or when being removed after vulcanization, the lower section 

 of the jacket being supported in the meantime by two jack 

 screws F. F. To effect uniform curing the drum and jacket 

 are rotated by the large gear G, driven by the motor H, the 

 jack screws being lowered during this operation. 



Connections for supplying steam to the interior of the drum 

 and jacket are provided, also means for applying air under 

 pressure within the hose during the vulcanizing operation. 

 [Sarah D. Hewitt. Buffalo, Xew York. United States patent 

 No. 1,210,938.] 



A HORIZONTAL PRESS VITLCANIZEE. 



The novelty in this vulcanizer as compared with the vertical 

 type consists in accessibility of the operating parts and means 

 for more quickly charging and discharging the tire molds. More- 

 over, the boltless molds are piped individually, permitting the 

 use of inward or outward pressure in the vulcanizing process. 



The drawing represents a side elevation of the apparatus,, 

 vvhicli consists of a horizontal heater A, and a train of press- 

 cars B. B. B, that are coupled together and moved in and out off 

 the heater by an endless chain gearing driven by the motor C. 



