Woodworking – Combined machine – Planing and matching
Patent
1975-02-14
1976-07-06
Jones, Jr., James L.
Woodworking
Combined machine
Planing and matching
B25B 2300
Patent
active
039676641
ABSTRACT:
A power driven screw driving tool having a screw holding nosepiece detachably mounted to its end, the nosepiece having slidable sleeve members cooperable with ball elements to obtain an initial locked condition of a screw entered into the nosepiece for positioning the screw relative to the work, and being cooperable with one another to obtain a released condition to permit the screw to be finally driven out of the tool into the work. A first embodiment describes the nosepiece as adapted for use with a tool in which the spindle and driving bit are restrained against axial movement relative to the housing. A variation of the first embodiment describes the nosepiece as having a screw back-up sleeve as being fixed to an inner sleeve, rather than relatively slidable as in the first embodiment. And a further embodiment discloses a modified form of the sleeves and back-up element in a nosepiece associated with a clutch engageable spindle and bit, the back-up element in this embodiment being adjustable according to variations in the heads of screws to be accommodated.
REFERENCES:
patent: 2327074 (1943-08-01), Snyder
patent: 2840126 (1958-06-01), Schmitt
Lesner Richard S.
MacDonald Murdo A.
Chicago Pneumatic Tool Company
Jones Jr. James L.
Rudy Stephen J.
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