1984-07-02
1986-03-04
Henry, Jon W.
74479, 74665B, G05G 1100, F16H 3706
Patent
active
045737711
ABSTRACT:
In a microscope, a nosepiece support assembly and a coarse and fine adjustment mechanism in direct operative control of the support assembly, the support assembly including a nosepiece mounting carriage with a depending rod rigid therewith and mounting a cam follower which rides on the edge of a cam, rotation of which is controlled by the adjustment mechanism. The adjustment mechanism in turn includes a reduction gear assembly utilizing dual gear trains and mounted to a cam-mounting shaft externally of the frame of the microscope and housed within a coarse adjustment handwheel for immediate access thereto. One of the gear trains incorporates a compound gear having a torsion spring between the individual gears to enhance gear train interengagement throughout the gear assembly.
REFERENCES:
patent: 2421126 (1947-05-01), Ott
Henry Jon W.
Raines Stephen
Spencer Alan H.
Warner-Lambert Technologies Inc.
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