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THE INDIA RUBBER WORLD 



[December 1, 1915. 



New Machines and Appliances. 



TWO NEW ADAMSON MOLD PRESSES. 



THIS liydraulically operated mold press, with swing bolts 

 which may be quickly removed, shows a vast improvement 

 over the ordinary hose vulcanizing press. 

 The machine, which is shown herewith, receives molds up to 

 24 inches in width and 20 or more feet in length. 



In operation the top mold and platen, which are clamped to- 

 gether, are raised sufficiently to allow the operator ready access 



to the lower mold. The lengths of hose, on their respective man- 

 drels, are now placed into the cavities of the lower mold, the 

 upper mold and platen are then lowered, and then the bolts are 

 swung into position. Water under pressure is simultaneously 

 turned into the 6 cylinders, forcing the rams upward and the two 

 mold sections together, thereby exerting the necessary pressure 

 on the hose. The steam is then turned on until the cure is com- 

 plete. 



The second illustration shows a new bicycle tire mold press 

 operated hydraulically, with a swinging lower mold to facilitate 

 the insertion or removal of the tire. 





inserted. The platen and mold are then swung back into align- 

 ment with the upper platen, when the ram action is started. The 

 upper platens have an opening to afford inflation of the tires 

 when the press is closed. First, the lower platen will be 

 forced up against the upper platen which, in turn, will force the 

 lower platen of the next tier against its upper platen. The con- 

 tinued application of the ram will force tight joints, when the 

 steam is admitted for curing the tires. [Adamson Machine Co., 

 .'Xkron, Ohio.] 



WILLS' AUTOMATIC JAR RING CUTTING LATHE. 



The special feature of this machine is an intermittent rotating 

 star gear which controls the travel of the disc cutting knife and 

 is automatically locked in position during each cut. thus in- 



suring uniformity in thickness of the rings produced. The illus- 

 tration shows the assembled machine with a partly cut rubber 

 sleeve on the mandrel. [United States patent No. 1,036,763, 

 Arthur J. Wills, North Brookfield, Massachusetts.] 



SOUTHWARK TIRE BEAD PRESS. 



The illustration herewith shows a special type of quick-acting 

 press for forming and shaping beads. The advantages of this 



It may have a number of platens arranged one above the other, 

 to any desired height. The lower platen can be swung out 

 clear of the machine by the handle, as shown, and the tire mold 



machine are explained in tlie following description furnished by 

 the manufacturers : 



"The moving table is controlled by air cylinders, thus per- 

 mitting the table to be moved in and out of the work very 

 quickly, necessitating the minimum amount of labor. The table 

 is sufficiently long to permit the bead being taken out and a 



