Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Adjustable – tool-guiding jig
Patent
1991-04-02
1992-10-27
Schwartz, Larry I.
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Adjustable, tool-guiding jig
408 72R, B23B 4902
Patent
active
051584069
ABSTRACT:
The invention is directed to a fixture for accurately boring a hole in a workpiece which comprises a base member and a clamping means for mounting the fixture on top of the workpiece. A guide block is mounted in the base member for movement along a path extending across a surface of the workpiece. The guide block has an elongated boring guide hole extending therethrough in a direction towards the workpiece for guidingly receiving a boring bit. A scale or other similar means is affixed to the guide block for accurately locating the boring guide hole at a selectable, predetermiend position relative to the workpiece. One or more set screws or the like are provided on the base member for securing the guide block in place once the boring guide hole has been properly located. A series of detents or holes may also be provide on the guide block to receive the set screws and thereby aid in locating the boring guide hole.
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patent: 4306823 (1981-12-01), Nashlund
patent: 4445277 (1984-05-01), Keefe
Doherty John R.
Schultz Robert
Schwartz Larry I.
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