Flush bolt boring jig

Details Flush bolt boring jig Flush bolt boring jig

1990-04-16

1991-09-10

Schwartz, Larry I.

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

Movable relative to tool along tool-axis

408108, 408109, B23B 4514

Patent

active

050469010

ABSTRACT:
A flush bolt boring jig is rigidly attached to a drill. The drill has a bit which is the length of the bore to be formed in the door. The jig holds the drill rigidly so the bore being drilled in the door is parallel to the free end of the door. This is done by tracks mounted by clamps in such a way that the tracks are parallel to the free end of the door. The jig is attached to a pair of slide tubes which slide on the tracks. Since the drill is attached to the jig, as the hole in the door deepens, the drill moving with the slide tubes over the tracks moves in a straight line so that the bore being formed is exactly parallel to the free end of the door.

REFERENCES:
patent: 17017 (1857-04-01), Bosenbury
patent: 165681 (1875-07-01), Moyer
patent: 290339 (1883-12-01), McDaniel
patent: 544402 (1895-08-01), Crane
patent: 661135 (1900-11-01), Andrews
patent: 1317285 (1919-09-01), Glaude
patent: 2416912 (1947-03-01), De Curtis
patent: 2463266 (1949-03-01), Habenicht
patent: 2888965 (1959-06-01), Phillips
patent: 3362447 (1968-01-01), Elder, Jr.
patent: 3762829 (1973-10-01), Yilmaz
patent: 3967687 (1976-07-01), Fowler
patent: 4031931 (1977-06-01), Balcombe
patent: 4235565 (1980-11-01), Albano

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