Jack R Lowery

US Patent:

45427712, Sep 24, 1985

Filed:

Feb 3, 1984

Appl. No.:

6/576889

Inventors:

George L. Payet - Fort Mill SC
James E. Hendrix - Spartanburg SC
Jack R. Lowery - Lancaster SC

Assignee:

Springs Industries, Inc. - Fort Mill SC

International Classification:

D03J 108

US Classification:

139302

Abstract:

An improved anvil construction, for use in an ultrasonic apparatus for edge cutting and sealing moving lengths of at least partially thermoplastic material, particularly textile fabric having at least some thermoplastic fibers, and including a vibrating sonic horn cooperating with and vibrating against the anvil for such ultrasonic edge cutting and sealing as the material moves between the sonic horn and the anvil. The anvil includes a peaked cutting edge and first and second surfaces extending in respective opposite directions from the cutting edge and is characterized by being adjustable to positions for effecting clean and sharp edge cutting and desired amounts of edge sealing in the material while resisting wear on the anvil. Such adjustment is in the form of pivotal movement of an anvil member to adjust the acuteness of the included angles of first and second surfaces extending from the cutting edge of the anvil and in the form of timed rotation of an anvil wheel member so that a fresh portion of the cutting edge thereof may be positioned for contact by the sonic horn when wear occurs on such cutting edge.

US Patent:

43999913, Aug 23, 1983

Filed:

Sep 25, 1981

Appl. No.:

6/305593

Inventors:

Palmer B. Everall - Lancaster SC
Jack R. Lowery - Lancaster SC

Assignee:

Springs Mills, Inc. - Fort Mill SC

International Classification:

B65H 2954

US Classification:

271175

Abstract:

A mechanism for stacking and accumulating a plurality of stacks of predetermined numbers of flat flexible articles, such as pillowcases and like products, sequentially received therein, such as from a machine fabricating such articles. A plurality of bar holders sequentially receive the articles in draped-over superimposed position at an entrance end of the mechanism to form separate stacks and are selectively conveyed longitudinally through the mechanism (1) from the entrance end through a stacking section to an accumulating section, (2) incrementally through the accumulating section to an exit end of the mechanism in a plurality of incremental longitudinal distances each of which is less than the longitudinal distance through the stacking section, and (3) back to the entrance.