Jig for boring dowel holes in true alignment with each other

Details Jig for boring dowel holes in true alignment with each other Jig for boring dowel holes in true alignment with each other

1993-08-25

1995-04-18

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

B23B 4900

Patent

active

054073065

ABSTRACT:
The invention is directed to a jig for boring doweling holes into alignment with one another in two boards or the like to be connected with one another by dowels or pegs and adhesives or bonding, comprising a plate which can be placed upon the board to be drilled, said plate comprising at least one guide hole for a drill and an adjustable and removable stop. In order to achieve elimination of the hitherto required insertion and removal of the dowels or pegs into or from the dowel holes of a board for positional determination of the bores in the second board, a displaceable or adjustable centering pin 14 probing the dowel hole 16 of the already drilled board 1 in an aligned manner is allocated to the guide hole 9.

REFERENCES:
patent: 3775020 (1973-11-01), Stoutenberg
patent: 4176989 (1979-12-01), Wolff
patent: 4594032 (1986-06-01), Warburg
patent: 4602898 (1986-07-01), Brown et al.
patent: 4834593 (1989-05-01), Fallon

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