Machine element or mechanism – Gearing – Directly cooperating gears
Patent
1978-04-24
1979-05-29
Gerin, Leonard H.
Machine element or mechanism
Gearing
Directly cooperating gears
81156, 81175, F16H 118, B25B 1316, B25B 1300
Patent
active
041563689
ABSTRACT:
An adjustable tool including at least two tool parts, each having a work engaging surface, the parts being interconnected such that the work engaging surfaces are relatively movable, an elongated rotary and reciprocal, threaded actuator operatively associated with a part such that upon rotation or reciprocation of the actuator, relative movement between the parts will occur, a tool base mounting the parts in the actuator and a clutch on the base and receiving the actuator for selectively engaging or disengaging the threads on the actuator, the actuator being substantially freely reciprocal within the base when the threads are disengaged to allow rapid relative movement between the work engaging surfaces to occur to effect rapid adjustment of the relative position of the surfaces, the actuator being rotatable when the threads are engaged to effect fine adjustment and/or the application of clamping force by the work engaging surfaces. Also disclosed is an improved clutch construction.
REFERENCES:
patent: 2491543 (1949-12-01), Alfonso
patent: 4023431 (1977-05-01), Pavlas
patent: 4048897 (1977-09-01), Price, Jr.
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