Ralph List Phones & Addresses
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Lansdowne, PA
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Brookville, PA
Publications
Us Patents
Strand Winding
View pageUS Patent:
39944441, Nov 30, 1976
Filed:
Jan 20, 1975
Appl. No.:
5/542503
Inventors:
Ralph W. List - East Lansdowne PA
Robert K. Stanley - Media PA
Robert K. Stanley - Media PA
Assignee:
Textured Yarn Co., Inc. - Kennett Square PA
International Classification:
B65H 6704
US Classification:
242 18A
Abstract:
Package winding of textile strands uninterrupted by transfer from a full to an empty package is accomplished by delaying lateral transfer of the winding strand from a full to an empty package and by picking up a resulting transfer tail of the laterally transferring strand adjacent the end of the empty package. The transfer delay step utilizes a bistable inertial device located to intercept the laterally transferring strand and to be repositioned thereby and to release the strand after momentary inertia-induced delay during which the strand begins to wind onto the empty package. The pickup step utilizes rotary devices located at the spaced adjacent ends of spindles for the respective packages, such device on the spindle of the package to which the strand is transferring being adapted to engage and grip it. The strand is broken or otherwise severed between the pickup device and the full package, thereby enabling the strand to be traversed onto the empty package.
Strand Treatment Apparatus
View pageUS Patent:
39369188, Feb 10, 1976
Filed:
Jan 20, 1975
Appl. No.:
5/542443
Inventors:
Ralph W. List - East Lansdowne PA
Malcolm F. Irwin - West Chester PA
Robert K. Stanley - Media PA
Malcolm F. Irwin - West Chester PA
Robert K. Stanley - Media PA
Assignee:
Textured Yarn Co., Inc. - Kennett Square PA
International Classification:
D06C 106
US Classification:
28 59
Abstract:
Conveyor apparatus for temporary holdup of textile strands, especially crimped strands for setting. Screenlike conveyor belts receive the strand between downwardly converging flights and discharge the strand from between upwardly diverging flights. The conveyor apparatus is housed in a heated steam-fed enclosure.
Strand Winding Apparatus
View pageUS Patent:
41038355, Aug 1, 1978
Filed:
Aug 31, 1976
Appl. No.:
5/719277
Inventors:
Ralph W. List - East Lansdowne PA
Assignee:
Techniservice Division, Textured Yarn Co., Inc. - Kennett Square PA
International Classification:
B65H 5402
B65H 6704
B65H 6704
US Classification:
242 18A
Abstract:
Textile strands are transferred from a full package to an empty bobbin spaced endwise therefrom, by delaying traverse of the winding strand and by picking up the strand and forming a resulting transfer tail on the end of the empty bobbin. The pickup step utilizes rotary bristles located at the spaced adjacent ends of spindles for the respective packages. The transfer delay step may utilize a bistable inertial device positioned to intercept the transferring strand, and functioning to release the strand after a momentary delay, after which delay the strand is wound onto the empty bobbin to begin the formation of a package. The inertial device has adjustable ears and includes variable weights serving to vary the timing delay, whereby the length and position of the transfer tail may be controlled and adjusted. It also has a specially tapered structure so that even if transfer is attempted while the device is positioned out of phase, the yarn will nevertheless reposition the device in phase to actuate the delay function.
Strand Treatment
View pageUS Patent:
39494535, Apr 13, 1976
Filed:
Jan 20, 1975
Appl. No.:
5/542182
Inventors:
Ralph W. List - East Lansdowne PA
Malcolm F. Irwin - West Chester PA
Robert K. Stanley - Media PA
Malcolm F. Irwin - West Chester PA
Robert K. Stanley - Media PA
Assignee:
Textured Yarn Co., Inc. - Kennett Square PA
International Classification:
D02J 112
US Classification:
28 72HR
Abstract:
Conveyor apparatus for temporary holdup of textile strands, especially crimped strands for setting. Screenlike conveyor belts receive the strand between downwardly converging flights and discharge the strand from between upwardly diverging flights. The conveyor apparatus is housed in a heated steam-fed enclosure.
Strand Winding
View pageUS Patent:
39360067, Feb 3, 1976
Filed:
May 6, 1974
Appl. No.:
5/467018
Inventors:
Ralph W. List - East Lansdowne PA
Robert K. Stanley - Media PA
Robert K. Stanley - Media PA
Assignee:
Textured Yarn Co., Inc. - Kennett Square PA
International Classification:
B65H 6704
US Classification:
242 18A
Abstract:
Package winding of textile strands uninterrupted by transfer from a full to an empty package is accomplished by delaying lateral transfer of the winding strand from a full to an empty package and by picking up a resulting transfer tail of the laterally transferring strand adjacent the end of the empty package. The transfer delay step utilizes a bistable inertial device located to intercept the laterally transferring strand and to be repositioned thereby and to release the strand after momentary inertia-induced delay during which the strand begins to wind onto the empty package. The pickup step utilizes rotary devices located at the spaced adjacent ends of spindles for the respective packages, such device on the spindle of the package to which the strand is transferring being adapted to engage and grip it. The strand is broken or otherwise severed between the pickup device and the full package, thereby enabling the strand to be traversed onto the empty package.
Strand Treatment Apparatus And Method
View pageUS Patent:
39529339, Apr 27, 1976
Filed:
Apr 18, 1974
Appl. No.:
5/461976
Inventors:
Ralph W. List - East Lansdowne PA
Malcolm F. Irwin - West Chester PA
Robert K. Stanley - Media PA
Malcolm F. Irwin - West Chester PA
Robert K. Stanley - Media PA
Assignee:
Textured Yarn Co., Inc. - Kennett Square PA
International Classification:
B65H 1734
US Classification:
226118
Abstract:
Conveyor apparatus for temporary holdup of textile strands, especially crimped strands for setting. Screenlike conveyor belts receive the strand between downwardly converging flights and discharge the strand from between upwardly diverging flights. The conveyor apparatus is housed in a heated steam-fed enclosure.
Strand Winding
View pageUS Patent:
40088596, Feb 22, 1977
Filed:
Jan 20, 1975
Appl. No.:
5/542502
Inventors:
Ralph W. List - East Lansdowne PA
Robert K. Stanley - Media PA
Robert K. Stanley - Media PA
Assignee:
Textured Yarn Co., Inc. - Kennett Square PA
International Classification:
B65H 6704
B65H 5700
B65H 5700
US Classification:
242 18A
Abstract:
Package winding of textile strands uninterrupted by transfer from a full to an empty package is accomplished by delaying lateral transfer of the winding strand from a full to an empty package and by picking up a resulting transfer tail of the laterally transferring strand adjacent the end of the empty package. The transfer delay step utilizes a bistable inertial device located to intercept the laterally transferring strand and to be repositioned thereby and to release the strand after momentary inertia-induced delay during which the strand begins to wind onto the empty package. The pickup step utilizes rotary devices located at the spaced adjacent ends of spindles for the respective packages, such device on the spindle of the package to which the strand is transferring being adapted to engage and grip it. The strand is broken or otherwise severed between the pickup device and the full package, thereby enabling the strand to be traversed onto the empty package.