Geometrical instruments – Area integrators – Electrical
Patent
1978-01-16
1979-10-16
Stearns, Richard R.
Geometrical instruments
Area integrators
Electrical
33174PC, 331795R, G01B 520, G01B 728
Patent
active
041708300
ABSTRACT:
A feeler for measuring lengths operable in a controlled measuring direction provided as an additional device for two-coordinates measuring heads. The feeler includes a feeler lever which has one end designed as a circular feeler tip for feeling engagement with the workpiece to be measured. The feeler is mounted in a bi-valent joint on a base plate carried by the measuring head which joint permits a displacement of the feeler tip in the measuring plane in any desired direction. The other end of the feeler lever is linked to a straight line guide which is mounted on a disc arranged on the base plate so as to be rotatable by any desired angle about an axis extending in a direction perpendicular to the measuring plane. At the above mentioned other end the feeler lever is subjected to a measuring force which acts in the direction of the straight line guide. The disc has connected thereto an indicator for measuring the displacement of the above mentioned other end.
REFERENCES:
patent: 1564589 (1925-12-01), Laessker
patent: 3514869 (1970-06-01), Kelling
patent: 3714715 (1973-02-01), Coes, Jr.
patent: 3945126 (1976-03-01), Bloch
Boerger et al., "Balance Beam Probe Assembly for Measuring Three-Dimensional Surface Profiles", W. Electric Tech. Dig., No. 32, 10-1973, pp. 11 & 12.
Stearns Richard R.
W. Ferd. Klingelnberg Sohne
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