Geometrical instruments – Area integrators – Electrical
Patent
1984-01-18
1985-04-09
Little, Willis
Geometrical instruments
Area integrators
Electrical
33125A, G01B 1104
Patent
active
045092621
ABSTRACT:
A length measuring system for measuring or adjusting the relative position of two objects includes a housing for a scale. This housing is fastened to a mounting surface of one object by means of at least one clamping shoe which engages a groove in a side surface of the housing. The inside surface of the groove adjacent to the mounting surface encloses with the mounting surface an angle .alpha. measured in a plane perpendicular to the lengthwise extent of the housing. The clamping shoe abuts by means of appropriately situated projections the mounting surface, the side surface of the housing, and the inside surface of the groove. Thus, the mounting shoe applies a rotational torque to the housing. This torque is about an axis of rotation running the longitudinal extent of the housing. In this way, a whole surface engagement of the support surface of the housing against the mounting surface is provided, despite the fact that the clamping shoes are positioned on only one side of the housing.
REFERENCES:
patent: 4070759 (1978-01-01), Nelle
patent: 4169316 (1979-10-01), Ernst
patent: 4184262 (1980-01-01), Kolb et al.
patent: 4198757 (1980-04-01), Nelle
patent: 4413416 (1983-11-01), Ernst
Neuere Entwicklungen bei fotoelektrischen Langenmessgeraten, pp. 435-438, from Messen+prufen/automatik Jul./Aug. 1974, by Dipl.-Ing. A. Ernst.
Dr. Johannes Heidenhain GmbH
Little Willis
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