Machine element or mechanism – Gearing – Directly cooperating gears
Patent
1996-07-30
1998-12-29
Lorence, Richard M.
Machine element or mechanism
Gearing
Directly cooperating gears
74 8915, 403340, 403362, 411437, F16H 2524
Patent
active
058529497
ABSTRACT:
The linear traversing apparatus includes a lead screw formed from a plurality of lead screw segments which are supported at regular intervals, that is, at the intersection of adjacent lead screw segments, along a span by fixed hollow cylindrical splice points. The lead screw segments include external threading which engages the internal threading of a C-shaped spanning nut. The C-shaped spanning nut has a circumferential portion removed so that the spanning nut can clear the fixed hollow cylindrical splice points and associated support structure as the spanning nut traverses the lead screw in response to the rotation of the lead screw and the inhibition of rotation of the spanning nut. The rotation of the spanning nut is inhibited typically by mechanical communication with an instrument or other device which is engaged by a rail or slot parallel to the longitudinal axis of rotation of the lead screw.
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Lorence Richard M.
Lund Scott
Thermo Fibertek Inc.
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