Gravity conveyor with return
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United States of America Patent
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-
Jan 7, 1997
Issued Date -
N/A
app pub date -
Jul 5, 1995
filing date -
Jan 31, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drive mechanism for driving roller supported trolleys around a radiused track to the upper end of a gravity conveyor, in which one or more rotating members each have a spring-loaded element which is retracted as the member rotates across the top of a trolley and is spring extended into a recess in the top of the trolley to establish a driving contact. The trolley is then swept around the radiused track by rotation of the rotating member. The elements may comprise pivotally mounted inclined dogs which allow overrunning of the trolleys when impacted from the rear by succeeding trolleys. The trolleys may also be controllably lowered at the other end of the conveyor by rotation of a second powered rotary member having similar spring-loaded elements.
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