Cutting by use of rotating axially moving tool – With signal – indicator – illuminator or optical means
Patent
1975-08-06
1976-12-28
Simpson, Othell M.
Cutting by use of rotating axially moving tool
With signal, indicator, illuminator or optical means
408109, 408115, B23B 4728
Patent
active
039998800
ABSTRACT:
A drilling fixture for use in precisely drilling long bores in a workpiece, such as a door, comprises a pair of plates secured to each other in parallel spaced relationship, a sleeve mounted in the space between the pair of plates, and a pair of rotatable bearings carried by the sleeve for receiving the drill and securely holding same in position during the drilling operation. A clamp is secured to the pair of plates for clamping same to the workpiece in alignment with the longitudinal axis of the sleeve, and presetting means are provided for moving the sleeve at right angles to its longitudinal axis to thereby precisely preset same with respect to the workpiece. A pair of parallel sighting devices are fixed to the sleeve in spaced relationship along the sleeve longitudinal axis to precisely align the sleeve, and the drill when received therein, with the drilling axis.
REFERENCES:
patent: 917488 (1909-04-01), Roberts
patent: 2507204 (1950-05-01), Giern et al.
patent: 2583283 (1952-01-01), Volz
patent: 3626513 (1971-12-01), Pytlak
patent: 3708237 (1973-01-01), Kruse
patent: 3762829 (1973-10-01), Yilmaz
Assaraf Simon
Shabtai Joseph
Barish Benjamin J.
Bilinsky Z. R.
Simpson Othell M.
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