August 1, 1921 



THE INDIA RUBBER WORLD 



825 



New Machines and Appliances 



A NEW TIRE-BUILDING CORE 



THE Giant 'Time Saver" is the newest development in tire- 

 building cores used for building the tire and removing it 

 preparatory for the air-bag and final cure, .\ccording to 

 the old method when the tire was completed on the core, it re- 

 quired three or four 

 men approximately 15 

 minutes to remove 

 the tire from the 



core with chain or air 

 hoist. This operation 

 is difficult, the tools 

 required are clumsy 

 and the handling of 

 the core is a great 

 strain on the men. 



It is said that one 

 man can remo\e any 

 giant-sized tire from 

 the "Time Save r" 

 building core and re- 

 assemble it in about 

 six minutes. The op- 

 eration can be done 

 directly on the tire building stand without removing the core. 



If it is desired to build the carcass on the building machine 

 and finish, the tire on the building stand, the whole core can be 

 transferred from machine to stand or vice-versa. The operation 

 of fastening the core to the machine or stand requires shifting 

 of but one lock lever that engages the face plate of the machine, 

 or chuck to the chuck body, or core. The chuck body part 

 of this new core is made so that any core within the range of 

 36 by 6, 38 by 7 and 40 by 8 sizes may be attached thereto. — De 

 Mattia Bros., Garfield, New Jersey. 



The Giant "Time Saver" Core 



HYDRAULIC PRESS FOR APPLYING TRUCK TIRES 



The press shown herewith is designed to force solid rubber 

 truck tires, with their rims, on and oflf truck wheels in the most 

 convenient, quick and efficient manner. 



S. L. Type Solid Tike I'ress 



The head on this press is a solid steel casting. The base is 

 formed by strain-rod lug extensions cast on the head of the 

 hydraulic cylmder. Cold-rolled steel strain-rods connect the head 

 with the base. The cylinder is of open-hearth cast steel. The 

 pump is mounted on an extension cast on the cylinder. The cir- 



cular platen is of cast steel also. It is guided by an exception- 

 ally long ram bearing in the cylinder throat. The rams are of 

 semi-steel outside, packed with L"-leather packing which is the 

 most convenient form to repack when worn out. 



The motor, mounted on the bracket on the left side of the 

 press, drives the pump through a belt. Direct-connected motor 

 drive through gears can be provided if desired or the press may 

 be equipped with a power attachment to be driven by a belt 

 from a line-shaft. 



The press may be equipped with a lifting device for inserting 

 and removing the wheels and their tires. The hydraulic lift 

 attached to a press will lift the heaviest truck wheel by manipu- 

 lating a valve while the pump is in operation. — The Hydraulic 

 Press Manufacturing Co., Mount Gilead, Ohio. 



HYDRAULIC VULCANIZING PRESS 



A hydraulic vulcanizing press, 66 by 39 inches, specially de- 

 signed for large production of rubber heels and soles, is here 

 shown. It is operated by two 16-inch rams at one ton per square 



inch, giving a 



total pressure of 

 400 tons on the 

 steam plates. 

 The press is 

 sunk somewhat 

 below the floor 

 level to render 

 the four open- 

 ings easily ac- 

 cessible. The 

 molds are 

 charged and 

 discharged by 

 one operator at 

 each side of the 

 press. 



A special fea- 

 ture not em- 

 ployed on 

 American-made 

 presses is to be 

 noted in the 

 split nuts at top 

 and bottom of 

 the side rods. 

 When screwed 

 to position these 

 are held fast by 

 a couple of 



transverse bolts which pass through lugs on one side of the nut 

 and insure its tight grip on the rod. — Francis Shaw & Co., Lim- 

 ited. Manchester, England. 



Shaw's Heel and Sole Press 



TRUCK FOR CARRYING TIRE MOLDS AND CORES 



A factory truck has been specially designed to handle tire 

 molds and cores. P.y means of this new type of truck the molds, 

 or cores, supported on a long ram, can be readily transported 

 about the plant. 



The mechanism of the truck consists of a carriage mounted 

 on rollers, running vertically between channel guides and lifted 

 by an electrically-driven cable hoist. The hoist motor is con- 

 trolled by a small reversing switch mounted on the dash and its 

 operation in both directions is limited by suitable switches. The 

 truck has a capacity of 2,500 pounds, spaced evenly on the ram. 



