Title: Angle indicating attachment for drills

Abstract: A device to be attached to drills, particularly power drills, for indicating the angular relation of the rotational axis of the drill to a surface being drilled and permitting the drill operator to guide the drill in accurately pointing the axis of the drill bit at any angle up to about 45.degree. out of square, or plumb to about 45.degree. out of plumb, or any combination thereof. Furthermore, the device can be utilized as an angle drilling gauge independently of its attachment to a drill in order to determine the angle between two planar surfaces joined at an angle from square to about 45.degree. right or 45.degree. left out of square.

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Other info:

Inventors: Conway, Ceil L. (Essexville, MI, US)

Application Number: 964786
Filing Date: 1978-11-29
Publication_date: 1980-10-14
Assignee:
Primary Class(es): 408/16 408/112, 408/241R
Other Classes:
US Patent Ref:

889273	Jun, 1908	Thomas	408/16.
2454372	Nov, 1948	Billeter	408/241.
2670638	Mar, 1954	Ro, Sr.	408/112.
2802380	Aug, 1957	Fossheim	408/16.
3242773	Mar, 1966	Van Praag	408/16.
3664754	May, 1972	Kelbel	408/241.
3890058	Jun, 1975	Self et al.	408/112.

Other Refs:
Primary Examiner: Hinson, Harrison L.
Assistant Examiner:
Attorney: O'Brien; Clarence A., Jacobson; Harvey B.