Geometrical instruments – Indicator of direction of force traversing natural media – Vehicle running gear – or headlight – inclination
Patent
1980-09-02
1983-07-19
Martin, Jr., William D.
Geometrical instruments
Indicator of direction of force traversing natural media
Vehicle running gear, or headlight, inclination
33347, G01C 928, B23B 4900
Patent
active
043935990
ABSTRACT:
A leveling mechanism having bubble levels is removably attachable to a hand-held power drill. In one form, the leveling mechanism includes a drive shaft coupled between the drill and a chuck for rotation therewith. The drive shaft is rotatably mounted to a support, and the support is held stationary relative to the drill housing. The support may include first and second surfaces parallel and perpendicular, respectively, to the axis of rotation of the drive shaft for supporting first and second bubble levels. Alternatively, the support may include a support plate and a level plate hinged thereto for supporting one or more bubble levels; a grooved alignment plate engages the edges of the support plate and level plate for maintaining a predetermined angular relationship therebetween. In another form, the leveling mechanism is removably attached to the front face of the drill housing. A circular projection extends from the front face of the drill housing, and the leveling mechanism extends around the outer periphery of the projection; a collar threadedly engages the inner periphery of the projection for securing the leveling mechanism to the drill.
REFERENCES:
patent: 2767483 (1956-10-01), Sauer
patent: 3664032 (1972-05-01), Tompkins
patent: 3664754 (1972-05-01), Kelbel
patent: 3807051 (1974-04-01), Funakubo
patent: 3864839 (1975-02-01), Wolf
patent: 3884593 (1975-05-01), Christoffer
patent: 4141151 (1979-02-01), Jansky
patent: 4154001 (1979-05-01), Serafin
Product Specification Manual, Portalign Tool Corp., "Portalign" Drill Guide Model Nos. 101-A, 101-1B etc.
Promotional Brochure Form No. 0541, Black & Decker, "Guidemate", Model No. 79-015.
Martin, Jr. William D.
Sterrenberg John W.
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