Digital indicating type dimension measuring instrument

Details Digital indicating type dimension measuring instrument Digital indicating type dimension measuring instrument

1984-03-12

1986-01-28

Steams, Richard R.

Geometrical instruments

Area integrators

Electrical

33DIG6, G01B 322, G01B 702

Patent

active

045662010

ABSTRACT:
This invention relates to a digital indication type dimension measuring instrument provided with a shock absorbing mechanism for controlling an overspeed of a spindle. The shock absorbing mechanism is provided with a pressure adjusting device which comprises a valve chamber having a communication hole communicated with a pressure chamber in a cylinder, an open hole communicated with the atmosphere and a ball valve for suitably opening or blocking the communication hole. When the spindle is inclined to a predetermined angle of inclination or more, the ball valve opens the communication hole to release a pressure fluid in the cylinder to the atmosphere.

REFERENCES:
patent: 2527173 (1950-10-01), Boat
patent: 3721010 (1973-03-01), Ristow
patent: 3975829 (1976-08-01), Possati

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