THE INDIA RUBBER WORLD 



[January 1, 1920. 



SECTIONAL TIRE CORE REMOVER. 



The removal of 

 sectional cores from 

 tire casings after 

 curing is facilitated 

 by the ingenious de- 

 vice that is adjust- 

 able to any size core, 

 and which is shown 

 in the accompanying 

 illustration. 



Small holes in 

 which the prongs of 

 the puller are in- 

 serted may be 

 drilled in the core 

 sections, or the 

 raised parts of the 

 core may be gripped 

 by the prongs that 

 are operated by the hand-lever 

 lever the sections are easily re 

 beads. (Gillette Rubber Co., Eau Claire. Wi 



ttachment. By means of this 

 3ved without kinking the tire 

 ■) 



BRAKE LINING CUTTER. 



This is a handy bench device that was primarily designed to 

 cut brake linings and intended to be used by the dealer or 

 garage man. In fact, the rubber manufacturer also could un- 

 doubtedly find this tool adaptable in many 

 ways, preferably as a hand stock cutter. 

 The cutter blade is of steel, 354 inches 

 wide, and may be easily removed for 

 sharpening. The hand lever is 15 inches 

 long, enabling the operator to cut easily 

 brake lining up to one-half inch in thick- 

 ness. (The Raybestos Co., Bridgeport, 

 Connecticut.) 



ILGAIR UNIT SYSTEM 

 OF HEATING. 



The question of heat- 

 ing is of importance tc 

 every rubber manufac- 

 turer, and particularly 

 so in view of the high 

 cost of fuel. Direct 

 heating requires num- 

 erous radiating sur- 

 faces, and blast heating 

 with its long ducts and 

 high-power blowers is 

 costly. According to 

 the present system each 

 unit constitutes a sep- 



n<- arate heater, and both 



the volume and the dis- 



controlled at one source. 



I } j 



This unit heater is a cabinet, open at both ends, containing a 

 two-stack radiator and a motor propeller fan. The air is drawn 

 in over the heated coils at about 1,000 feet per minute and 

 discharged at about 2,500 feet per minute. Stationary deflectors 

 spread the air in a horizontal plane, while a movable one controls 

 the placement of the air, thus controlling the direction of the 

 heat. As the air al the breathing line warms up, the deflector 

 is raised and the air current straightens out to a distance of 

 50 to 60 feet, the low velocity precluding drafts or dust circu- 

 lation on the floor. There are two different types — a pedestal 

 model for floor installations and one for ceiling suspension. 

 (Ilg Electric Ventilating Co., Whiting and Wells streets, Chi- 

 cago, Illinois.) 



MISCELLANEOUS PATENTS. 

 ELASTIC FABRIC FOR TIRE BUILDING. 



I7oR THE PURPOSE of at once avoiding waste and rendering 

 ■*• elastic the splice formed by joining bias-cut strips of fric- 

 tioned fabric for making tires and similar articles, the simple 

 device of slitting the selvages of the fabric at frequent intervals 



Pedestal Suspension. 



Ceiling Suspension. 



Tike Buildi.ng Fabric. 



has been patented. The result is that such a selvage edge bias 

 splice is as elastic as any other portion, the joint is less bulky 

 and all waste is eliminated. (Kurt W. Jappe, assignor to The 

 Miller Rubber Co., both of Akron, Ohio. United States patent 

 No. 1,318,876.) 



MACHINERY PATENTS. 



DEMOUNTABLE RIM FOR SOLID TIRES. 



'X'his is a detachable rim for solid tire wheels and nia}- be ap- 

 ■'■ plied to any wheel that has an ordinary turned rim intended 

 to fit a pressed on tire but calls for a tire of a little larger 

 diameter than that of 

 the "wheel. The space be- 

 tween the rim and the 

 inside of the band of the 

 tire is taken by an an- 

 nular ring of steel or 

 other cast metal which 

 is wedged in place and 

 thus holds the tire in 

 position. The grooves 

 for the wedges are 

 spaced around the ring, 

 being cut alternately on 

 the outer and the inner 

 surface ; they taper in 

 depth across the rim but 

 their sides are parallel. 

 Neither the rim of the 

 wheel nor the inner cir- 

 cumference of the band 

 tire is cut. 



The rim is turned in- 

 ternally so that it slides easily over the outer surface of the 

 wheel rim; externally its dimensions allow the band tire to slip 



Solid Tire Demou; 



Rim. 



