Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Patent
1991-11-12
1992-10-20
Lawson, Lowell A.
Metal deforming
By use of tool acting during relative rotation between tool...
During rotation of work
72133, B21H 110
Patent
active
051566354
ABSTRACT:
A bicycle wheel straightener including a support surface, an axle retention bar attached to the support surface and including an axle, adjustable along the length of a slot in the retention bar, for rotatably supporting a bent bicycle wheel in a horizontal relationship relative to the support surface. A pair of spaced rollers are rotatably fixed to the support surface in position to engage and rotatably support a side of the rim of the bicycle wheel. A third roller is positioned between and vertically spaced from the first and second rollers and adjustably supported by a vertical frame member. A jackscrew provides vertical movement of the third roller relative to the first and second spaced rollers to selectively apply pressure to the opposite edge of the bicycle wheel rim supported by the pair of spaced rollers. The jackscrew exerts a straightening force on the wheel rim as the wheel is manually rotated. Two embodiments of the axle retention/adjustment structure are disclosed (FIGS. 3-4 and FIGS. 6-8). FIG. 5 illustrates an alternate embodiment of the wheel straightener support structure including the use of a pair of vertically spaced idler rollers.
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Lawson Lowell A.
Nelson Wallace J.
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