F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
74/284
F16H 53/06 (2006.01) G01J 3/06 (2006.01) G01J 3/18 (2006.01)
Patent
CA 1130114
PP 1239 ABSTRACT: A cam and follower arrangement in which the cam consists of a track, carried by a rotatable member, and has one or more abrupt directional transitions and the follower is biassed to engage one wall or the other of the track appropriate to the direction of rotation of the member, by means including a direct-current electric motor operated in a stalled condition. The arrangement is employed in a monochromator for spectrophotometric apparatus to drive a filter-holder, to position one of a number of optical filters in the incoming beam of light.
346640
Firth John R.
Perkins Charles V.
Pye (electronic Products) Limited
Van Steinburg C.e.
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