Cutting chain for mining machines
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United States of America Patent
Stats
-
Jul 16, 1991
Grant Date -
N/A
app pub date -
Jun 21, 1990
filing date -
Jun 21, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An endless chain for carrying cutting elements for a mining machine comprises a plurality of pivotally interconnected link elements, some of which are constructed to mount outwardly projecting cutting tools. The link elements are pivotally interconnected so as to provide sprocket openings along the two outer edges of the cutting chain. A pair of axially spaced sprockets secured to a driving drum engage the sprocket openings provided along the two longitudinal edges of the cutting chain. The sprocket teeth are dimensioned to be of less peripheral width than the sprocket openings and the pitch of the sprocket openings slightly exceeds the pitch of the sprocket teeth, thus insuring that the driving force imparted to the cutting chain by the sprockets is imparted only by the two leading sprocket teeth as they approach their point of exit from the chain openings.
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