Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Adjustable – tool-guiding jig
Patent
1994-11-21
1995-11-14
Howell, Daniel W.
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Adjustable, tool-guiding jig
408103, B23B 4728
Patent
active
054660980
ABSTRACT:
A drill bit guiding device includes an end block, a mounting block, a pair of parallel guide rods between the end block and the mounting block, a slide member and a pushing screw. The end block has a flat end face and a plurality of through-holes formed perpendicularly through the flat end face. The slide member is mounted between the end block and the mounting block and integrally has a first portion passed perpendicularly through by the guide rods, and a second portion disposed parallel to the guide rods. The slide member further has a plurality of through-holes formed through the second portion, each corresponding to a respective one of the through-holes of the end block, and an axis transverse to an axis of the corresponding one of the through-holes in the end block. The pushing screw passes threadedly and perpendicularly through the mounting block and has a first end portion provided with an abutting member which moves towards or away from the slide member upon rotation of the pushing screw.
REFERENCES:
patent: 2602238 (1952-07-01), Wellman
patent: 5308199 (1994-05-01), Juang
patent: 5409329 (1995-04-01), Juang
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