Geometrical instruments – Gauge – Screw thread
Patent
1982-12-28
1984-06-12
Haroian, Harry N.
Geometrical instruments
Gauge
Screw thread
33147M, 33143R, G01B 348
Patent
active
044533160
ABSTRACT:
The object to be measured (2) is placed on carrier (1). Measuring pins (7,8) can be adjusted roughly in terms of height after loosening screws (11). Sliding carriages (5,6) are guided movably by spherical guides in measurement support members (3,4) perpendicularly to the direction of measurement. Measuring pins (7,8) located in support members (3,4) which are provided with handles (13) and which are connected with sliding carriages (5,6) by means of leaf springs (14). If the laterally adjustable support member (4) is moved into the measuring position, the sliding carriages (5,6) with their measuring pins (7,8) can, within the limits of leaf springs (14), be freely centered in the pitch of the thread to be measured (2a) thus providing the ideal prerequisites for correct measurement of the thread diameter.
REFERENCES:
patent: 3432935 (1969-03-01), Reish
Groff, Jr. Emory L.
Haroian Harry N.
Trimos S.A.
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