Signature gathering machine
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United States of America Patent
Stats
-
May 24, 1983
Grant Date -
N/A
app pub date -
Jun 26, 1981
filing date -
Jun 26, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention is concerned with the elimination of vibration in signature gathering machine delivery chains. Reciprocal motion in some components of a signature gathering system creates periodic forces which may be at or near the natural frequency of the delivery chain. This causes undesired vibration in the chain. The present invention damps this vibration by continuously constraining the lower run of the chain and by placing a positive drive at the tail end sprocket of the chain to take up some of the slack in the return run. The vibration is also substantially reduced at its source by placing a flywheel on the mainline drive shaft near the point where the reciprocal motion is derived.
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Family
International Classification(s)
Cited Art Landscape
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