Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1995-02-06
1997-12-09
Marmor, Charles A.
Machine element or mechanism
Control lever and linkage systems
Elements
74813L, 269 47, 359818, G05G 104
Patent
active
056948140
ABSTRACT:
A locking arrangement suitable for use in precision optical instruments comprising first and second mountings (56, 58) defining respective opposing first and second concave surfaces (60, 62) and a member (64) for location between the mountings and defining oppositely directed convex surfaces (66, 68) for engaging a respective concave surfaces. A clamping arrangement (72, 74) is provided and has an adjustment configuration in which the member (64) is rotatable about an axis passing through the engaging surfaces and a locking configuration in which, with the first mounting (56) fixed in position and the second mounting (58) fixed against movement along the axis, the surfaces are held in locking engagement.
REFERENCES:
patent: 2641965 (1953-06-01), Valenza
patent: 3822088 (1974-07-01), Steiner
patent: 5328290 (1994-07-01), Plastina
patent: 5355539 (1994-10-01), Boettger
Davis IV F. Eugene
Fenstermacher David M.
Marmor Charles A.
Pilkington P-E Limited
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