Work holders – Holder mounted for movement – With indexing steps
Patent
1983-06-13
1985-10-01
Schmidt, Frederick R.
Work holders
Holder mounted for movement
With indexing steps
242 719, 269 71, 269 76, 269101, 269907, 269238, 269254CS, B23Q 104
Patent
active
045441456
ABSTRACT:
A vise for holding small objects. It is particularly useful as a fly tying vise. It comprises a support bearing a housing having a rotatable central arbor carried in low friction bearings. The preferred form has a hub mounted at each end of the arbor. One hub houses a clutch or other locking device. The other hub bears a clamping arrangement having fixed and moveable members with distal jaw portions adapted to hold an object such as a fishhook. The clamping arrangement has a longitudinal axis essentially parallel to but off-axis from the longitudinal axis of the arbor. The axis of the arbor does not pass through the jaws of the clamping arrangement. This permits a hook to be held in the vise with its shank lying on the axis of rotation of the arbor. In this way body thread or other dressing can be rapidly and accurately applied as the fly is created. Jaw members have essentially parallel and planar opposing faces with the maximum opening being controlled by an adjusting screw. This screw also serves as the fulcrum point of a lever arrangement which multiplies the clamping force applied to an object being held in the jaws. The off-axis location of the clamping arrangement causes it to come to a resting position directly below the axis of the arbor when the arbor is free to rotate.
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Gehr Keith D.
Hartman Judy J.
Schmidt Frederick R.
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