Coarse-fine focusing device for precision machinery

Details Coarse-fine focusing device for precision machinery Coarse-fine focusing device for precision machinery

1975-05-08

1977-05-03

Scott, Samuel

Machine element or mechanism

Shaft operators

Plural speed

74665B, 350 86, F16H 3518, G02B 2126

Patent

active

040207056

ABSTRACT:
A coarse-fine focusing device for precision machinery capable of accurate coarse and fine adjustments free from any play in which a gear fixed to a pinion shaft having a pinion is connected to a gear fixed to a fine adjustment shaft, to which a fine adjustment handle is mounted, by a reduction gear mechanism provided in a coarse adjustment handle which is mounted coaxially with said fine adjustment handle.

REFERENCES:
patent: 1503553 (1924-08-01), Powell
patent: 2877651 (1959-03-01), Erbe et al.
patent: 3019705 (1962-02-01), Wilkinson
patent: 3065642 (1962-11-01), Capelle et al.
patent: 3355955 (1967-12-01), Aller
patent: 3385116 (1968-05-01), Carlson et al.
patent: 3492059 (1970-01-01), Shio
patent: 3683704 (1972-08-01), Kuroha

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