Work holders – Holder mounted for movement – Including means to shift holder position
Patent
1988-02-02
1989-07-18
Schmidt, Frederick R.
Work holders
Holder mounted for movement
Including means to shift holder position
269254CS, 269268, B23Q 318
Patent
active
048487600
ABSTRACT:
An apparatus for clamping tire tubes for repair thereof. The apparatus includes a base with a frame extending upwardly therefrom. A mandrel is attached to the upper end of the frame. A vertically movable actuating rod is positioned adjacent the frame and biased downwardly by a spring, the force of which may be adjusted. The lower end of the actuating rod is connected to a foot pedal for overcoming the force of the spring and raising the rod. The upper end of the rod has a yoke assembly connected thereto. The yoke assembly has a substantially U-shaped yoke forming a pair of upwardly extending arms, each arm having a substantially horizontal clamping bar connected thereto. The yoke is preferably at least partially flexible so that the arms will deflect outwardly as a result of the downward force exerted by the spring when the clamping bars engage a tire tube positioned on the mandrel.
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patent: 2384803 (1945-09-01), Anderson
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patent: 3088348 (1963-05-01), Harris
Blankenship Harold R.
Blankenship Timothy R.
Holmes David A.
Schmidt Frederick R.
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