Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent
1980-09-08
1982-08-10
Staab, Lawrence J.
Machine element or mechanism
Mechanical movements
Rotary to or from reciprocating or oscillating
74 8915, 744248R, F16H 2512, F16H 2920
Patent
active
043432000
ABSTRACT:
A reversing attachment adapted to be applied to a diamond thread screw of the type having intersecting thread grooves, for effecting reversal in the axial direction of travel of a follower associated with the screw, the reversal occurring at any one of a number of predetermined points along the length thereof. The attachment is in the form of an abutment which is positioned at a groove intersection, and which is arranged to engage a driving element of the follower as the latter approaches the abutment so as to prevent passage of the driving element past the intersection. In accomplishing the reversal, the drive element is directly engaged by the abutment, and is caused to shift axially with respect to the follower such that the element transfer from one groove of the diamond thread screw to the oppositely-directed groove. The abutment is releasably carried by the screw, and can be merely snapped in place at the desired point along its length so as to enable the reciprocating stroke of the follower to be varied between two arbitrary points that are essentially independent of the locations of the ends of the screw thread.
REFERENCES:
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patent: 4031765 (1977-06-01), Metz
Alworth James
Kennedy John C.
La Barre Berger
Sandin Gus
Lehmann H. Gibner
Lehmann K. Gibner
Staab Lawrence J.
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