E - Fixed Constructions – 05 – B
Patent
E - Fixed Constructions
05
B
70/51, 74/65
E05B 37/00 (2006.01)
Patent
CA 1057073
ABSTRACT OF THE DISCLOSURE: A mechanism for converting predetermined alter- nating rotational movements to rectilinear movements is embodied in a combination lock having a casing with an elongated recess, a bolt slidably mounted in the casing for axial movement between a retracted unlocked position and a projected locking position, the bolt being non-rotatable in the casing and having an axial cylindrical recess, a cylindrical can rotatably mounted in the bolt recess and held against axial movement relative to the casing; the cam is formed with grooves in its cylindrical surface inclined in opposite directions lengthwise of the cam and intersecting each other at predetermined positions angularly disposed about the axis of the cam; the bolt mounts an inwardly projecting follower slidably fitting into the cam grooves and means are provided for manually rotating the cam alternately in opposite direc- tions in accordance with the intersections of the grooves to cause the follower to move the bolt axially in the casing.
280952
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