Tire-bend′er.
A device for bending tires to a uniform circular curve.
That illustrated (
Fig. 6471) has two lower rollers, which may be placed at various distances apart, in a bed-plate having semicircular grooves to receive their journals, and an upper roller journaled in a swing-frame, adjustable by a screw-thread-
[
2580]
ed strap-rod.
The rollers are adjusted to the curve of the particular tire to be formed, and are turned by levers or cranks, drawing the bar of metal between them.
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Gettemy's tire-bending and shrinking machine. |
In
Fig. 6472, the journal-blocks of the end rollers slide in inclined guides, being actuated by links connecting them to crankpins on the central ratchet-wheel, which is turned by a lever.
An index-finger on the shaft of this wheel indicates the diameter of the tire which is being passed through the machine.
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Ballou's tire-bending machine. |
In
Fig. 6473, the wheel is revolved by a lever which engages the ratchet-teeth, and the tire is wound on the periphery, the lower roller pressing it against the wheel.
