Screw adjustment mechanism with pre-set backlash
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United States of America Patent
Stats
-
Jun 25, 1991
Grant Date -
N/A
app pub date -
Jul 3, 1989
filing date -
Jul 3, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A screw adjustment mechanism with pre-set backlash for an ink fountain blade, includes the adjusting screw threadedly mounting two bushings separated by a compression spring which biases the threads of the respective bushings into engagement with opposite sides of the screw thread a desired amount. The biased bushings are each fixed to the fountain blade. The bushings' thread contact with opposite sides of the screw thread effectively eliminates backlash (lost motion), but the contact can be adjusted to provide a desired resistance to screw adjustment.
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Cited Art Landscape
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