Digital electronic indicator

Details Digital electronic indicator Digital electronic indicator

1977-04-27

1978-09-19

Yasich, Daniel M.

Geometrical instruments

Area integrators

Electrical

73432A, G01B 520, H01J 338

Patent

active

041142802

ABSTRACT:
An indicator is made to fit within American Gauge Design dimension requirements to be compatible with existing accessories for indicators and still have a spindle with a travel of about 1/2 inch cooperating with an electro-optical, digital electronic measurement and readout system. A coupling is secured to the inner end of the spindle and supports a ruled glass scale for movement with the spindle in an axially offset position to move relative to a reader assembly that is mounted in the housing. A connecting arm is secured to the coupling for movement in a region spaced from the scale, a lifter rod is arranged opposite the spindle, and a lifter arm is connected between the lifter rod and the connecting arm so that the lifter rod moves about one-half the distance of the spindle. The connecting arm also prevents rotation of the spindle to maintain the orientation of the scale relative to the reader assembly.

REFERENCES:
patent: 1728626 (1929-09-01), Pairman
patent: 3131483 (1964-05-01), Koenig
patent: 3816929 (1974-06-01), Kiffe et al.
patent: 3991477 (1976-11-01), Zipin et al.

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