Process and apparatus for stopping draw frames and the like
AssigneeRussell Corporation
InventorFletcher D. Adamson
Life of this patent
Estimating the term…
Abstract
Disclosed is a process and apparatus for stopping the drawing action of a draw frame whenever sliver breaks. The sliver is pneumatically conveyed into the field of influence of a sensor which generates a signal indicating the presence of the broken sliver therein. This signal is used to stop the draw frame, thus eliminating the production of sub-weight sliver or roving.
Claims5
In apparatus for stopping a roll-type draw frame of the kind in which a sliver when broken moves away from the path of slivers drafted by the rolls of the machine,
- (a) means to move broken slivers from all the rolls along a common, converging path, whereby all broken slivers from all the rolls pass by substantially the same location in the apparatus,
- (b) a sensor having a field of influence located immediately adjacent the common converging path of said broken slivers and effective to generate a signal in response to the presence of said broken slivers in said field, and
- (c) means to utilize such signal to stop the drafting action of the frame.
The process of stopping a draw frame responsive to the mis-drawing of an end passing therethrough comprising:
- (a) directing all of the mis-drawn or broken ends along a common, converging path removed from the path taken by the ends during normal drafting,
- (b) generating a signal indicative of the fact that a broken end is proceeding along said common, converging path, and
- (c) employing said signal to stop the drafting action of the frame.
Dependencies are inferred from the claim text.