. India rubber world. pose of removing the rubber tread after the wrapping process is completed. It isheld in place by means of an adjustable expanding ring E whichis manipulated by the hand wheel F. The speed regulating mechanism is the most interesting featureof this machine. It consists of two cone-shaped pulleys G and H( lig. 2), connected by a belt 1 which is automatically moved overthe pulleys as the tire increases in size. This is accomplishedby means of a fork K carried on the rods L L and connectedwith a lever M pivoted to the frame at X. This lever engageswith the slotted end of the
. India rubber world. pose of removing the rubber tread after the wrapping process is completed. It isheld in place by means of an adjustable expanding ring E whichis manipulated by the hand wheel F. The speed regulating mechanism is the most interesting featureof this machine. It consists of two cone-shaped pulleys G and H( lig. 2), connected by a belt 1 which is automatically moved overthe pulleys as the tire increases in size. This is accomplishedby means of a fork K carried on the rods L L and connectedwith a lever M pivoted to the frame at X. This lever engageswith the slotted end of the lever O, the opposite end of whichhas a roller P which bears against the tire as it is being built upon the mandrel. As the tire increases in size during the windingprocess the series of levers causes the belt I to be moved acrossthe cone-shaped pulleys so as to reduce the speed of the pulley pulley, having a pinion Q which engages the large gear speed of the tire periphery is kept constant throughout the. Fig. 3.—Price Solid Tire Wrapping Machine. winding process. The shaft S also has a clutch T by means ofwhich tlic mandrel D may be thrown out of gear without stoppingthe calender. The heavy roller U is employed to press the strips of rubbertogether so that all air is excluded from the tire. In additionto the roller a vacuum pump is sometimes used, with the openend of the air pipe placed in-the angle V so as to withdrawthe air away from the rubber strip as the latter is being wound. After the winding is continued until the tire is of the desiredthickness, the tread may be turned to the required shape by meansof the cutting apparatus W. This cutter may be of the com-pound type .so that the knife may be operated in any direction,and it may also include a buffing or finishing wheel to follow thecutter. The clutch T may be disengaged from the gear R andengaged with the gear X which is driven by a chain Y from thegear Z. This also gives a higher speed in the shaft S
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