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US 4,044,698 AGranted
Apparatus for joining plies of material such as textile fabric
AssigneeStahl-Urban Company
InventorWilliam R. Conner, Jr.
Life of this patent
Estimating the term…
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AssigneeStahl-Urban Company
InventorWilliam R. Conner, Jr.
Estimating the term…
Apparatus for joining together two plies of material such as textile fabric comprising a sewing machine, contour guide means for shifting the plies as they are fed forward through the sewing machine to effect contour seaming of the plies, and a feed control clamp for clamping the trailing ends of the plies as they are fed forward. This clamp, clamped on the trailing ends of the plies, moves forward with the plies as they are fed forward. It is also automatically shifted from side to side as it moves forward to maintain the edge of the plies being sewn aligned with the contour guide means. The apparatus further comprises loading means which is adapted, while a pair of plies is being sewn, to receive the next pair to be sewn and, upon completion of sewing the first pair, to enter the next pair in the sewing machine and in the feed control clamp.
Apparatus for joining plies of material such as textile fabric comprising means for seaming the plies together along an edge thereof, means for feeding the plies through the seaming means, and contour guide means for shifting the plies as they are fed forward by the feeding means to effect contour seaming of the plies, wherein the improvement comprises the provision of means for controlling the feed of the plies, said control means comprising a control clamp for clamping the plies as they are fed forward and means mounting said control clamp for movement with the plies as they are fed forward, and loading means adapted, while one assembly of plies is being fed through the seaming means, to receive the next assembly of plies to be seamed and operable upon completion of seaming of the said one assembly to enter the next assembly in the seaming means and in said control clamp.
Apparatus as set forth in clamp 1 wherein said control clamp is biased in the direction away from the seaming means to tension the plies clamped by said control clamp as the plies feed forward through the seaming means.
Apparatus for joining plies of material, such as textile fabric, comprising means for seaming the plies together along an edge thereof, means for feeding the plies through the seaming means, and contour guide means for shifting the plies as they are fed forward by the feeding means to effect contour seaming of the plies, wherein the improvement comprises the provision of means for controlling the feed of the plies to the contour guide means, said control means comprising a control clamp for clamping the plies as they are fed forward, means mounting the clamp for movement with the plies as they are fed forward and also for side-to-side movement relative to the direction of feed, means for sensing the position of the edge of the plies as the plies approach the contour guide means, and means responsive to said sensing means for shifting said clamp from side to side as it moves forward generally to align the edge of the plies with the contour guide means as the plies enter the latter.
Dependencies are inferred from the claim text.