Position indicating system and method

Details Position indicating system and method Position indicating system and method

1982-02-26

1985-08-13

Wise, Edward J.

Boots, shoes, and leggings

364474, 364167, G05B 1919

Patent

active

045354146

ABSTRACT:
A position indicating system and method for use in detecting relative movement between machine components such as components of measuring machines, machine tools and other forms of machinery to be automatically and precisely controlled in operation. A lead or drive screw supported by one machine component or assembly contains marker recordings provided along one or more surfaces of its helical thread which recordings are scanned to generate pulses as the screw rotates in synchronization with the relative movement between machine components. The marker recordings may be provided along the base of the screw thread, either or both its side walls or the top wall or helical crown of the thread and may be photoelectrically, magnetically or otherwise detected by a sensor supported by a threaded bushing riding in the thread of the screw.

REFERENCES:
patent: 3681582 (1972-08-01), Kimio et al.
patent: 4038890 (1977-08-01), Winget
patent: 4049942 (1977-09-01), Balleys et al.
patent: 4203064 (1980-05-01), Suzuki et al.
patent: 4250551 (1981-02-01), Paveglio, Jr. et al.
patent: 4338556 (1982-07-01), Hetzel
patent: 4370721 (1983-01-01), Berenberg et al.
patent: 4376970 (1983-03-01), Ilseman et al.
patent: 4392195 (1983-07-01), Inoue

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