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US4338973A Expired / Lapsed US ⏱️ 0.0 years remaining

Catch mechanism for a weaving machine

Assignee: Sulzer AG
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Filing: 1980-05-23
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Granted: 1982-07-13
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Expires: 2000-05-23
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Abstract

Abstract The catch mechanism employs a straight line guideway for moving an ejector reciprocally in a straight line path. The ejector has a foot piece for engaging only the foremost gripper projectile of a series of projectiles in a channel so as to positively eject the foremost projectile. A pivotally mounted spring biased pawl is used to retain the projectiles in the channel and is biased outwardly during an ejection process by the movement of the ejector.

Inventors

  • 👤 Rudolf Stauner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 17:14
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/12; D03D47/24

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 61 words
A catch mechanism for a weaving machine, said catch mechanism having a channel for receiving a sequential series of weft insertion gripper projectiles, said channel having a horizontal section and a vertical section; and an ejector for sequentially ejecting each projectile from said channel, said ejector being reciprocally movable in a straight line path into and out of said vertical section.
Claim 2
Dependent Claim 61 words
A catch mechanism for a weaving machine, said catch mechanism having a channel for receiving a sequential series of weft insertion gripper projectiles, said channel having a horizontal section and a vertical section; and an ejector for sequentially ejecting each projectile from said channel, said ejector being reciprocally movable in a straight line path into and out of said vertical section.
Claim 3
Dependent Claim 81 words
A catch mechanism as set forth in claim 1 which further has a pawl movable between a blocking position in said channel to retain a series of projectiles in said channel and a release position spaced from said channel to permit passage of a projectile thereby, and a force accumulator biasing said pawl into said blocking position, said accumulator being displaceable to permit movement of said pawl from said blocking position into said release position under the force of said ejector.
Claim 4
Dependent Claim 31 words
A catch mechanism as set forth in claim 2 wherein said ejector has a depression therein and said pawl has a stop movable into said depression upon ejection of a projectile.
Claim 5
Dependent Claim 134 words
A catch mechanism for a weaving machine, said catch mechanism having a channel for receiving a sequential series of weft insertion gripper projectiles; an ejector for sequentially ejecting each projectile from said channel, said ejector being reciprocally movable in a straight line path and having a slide thereon with a depression therein; a pawl movable between a blocking position in said channel to retain a series of projectiles in said channel and a release position spaced from said channel to permit passage of a projectile, said pawl having a stop movable into said depression upon ejection of a projectile; and a force accumulator biasing said pawl into said blocking position, said accumulator being displaceable to permit movement of said pawl from said blocking position into said release position under the force of said ejector.
Claim 6
Dependent Claim 134 words
A catch mechanism for a weaving machine, said catch mechanism having a channel for receiving a sequential series of weft insertion gripper projectiles; an ejector for sequentially ejecting each projectile from said channel, said ejector being reciprocally movable in a straight line path and having a slide thereon with a depression therein; a pawl movable between a blocking position in said channel to retain a series of projectiles in said channel and a release position spaced from said channel to permit passage of a projectile, said pawl having a stop movable into said depression upon ejection of a projectile; and a force accumulator biasing said pawl into said blocking position, said accumulator being displaceable to permit movement of said pawl from said blocking position into said release position under the force of said ejector.
Claim 7
Dependent Claim 141 words
A catch mechanism for a weaving machine, said catch mechanism having a channel for receiving a sequential series of weft insertion gripper projectiles; an ejector for sequentially ejecting each projectile from said channel, said ejector being reciprocally moving in a straight line path and having a depression therein; a pawl movable between a blocking position in said channel to retain a series of projectiles in said channel and a release position spaced from said channel to permit passage of a projectile thereby, said pawl including an adjustably mounted shaped piece therein having a stop mounted thereon for movement into said depression upon ejection of a projectile; and a force accumulator biasing said pawl into said blocking position, said accumulator being displaceable to permit movement of said pawl from said blocking position into said release position under the force of said ejector.
Claim 8
Dependent Claim 141 words
A catch mechanism for a weaving machine, said catch mechanism having a channel for receiving a sequential series of weft insertion gripper projectiles; an ejector for sequentially ejecting each projectile from said channel, said ejector being reciprocally moving in a straight line path and having a depression therein; a pawl movable between a blocking position in said channel to retain a series of projectiles in said channel and a release position spaced from said channel to permit passage of a projectile thereby, said pawl including an adjustably mounted shaped piece therein having a stop mounted thereon for movement into said depression upon ejection of a projectile; and a force accumulator biasing said pawl into said blocking position, said accumulator being displaceable to permit movement of said pawl from said blocking position into said release position under the force of said ejector.
Claim 9
Dependent Claim 79 words
A catch mechanism for a weaving machine comprising a housing having a shaped channel therein for guiding a sequentially delivered series of gripper projectiles therein from a catching station to an ejection station through a curved path having a horizontal section and a vertical section; and an ejector reciprocally mounted in said housing for movement in a straight-line path to move into said vertical section of said channel to eject a projectile in said ejection station from said channel.
Claim 10
Dependent Claim 79 words
A catch mechanism for a weaving machine comprising a housing having a shaped channel therein for guiding a sequentially delivered series of gripper projectiles therein from a catching station to an ejection station through a curved path having a horizontal section and a vertical section; and an ejector reciprocally mounted in said housing for movement in a straight-line path to move into said vertical section of said channel to eject a projectile in said ejection station from said channel.
Claim 11
Dependent Claim 82 words
A catch mechanism as set forth in claim 6 which further comprises a pawl movable between a blocking position in said channel to retain a series of projectiles in said channel and a release position spaced from said channel to permit passage of a foremost projectile thereby, and a force accumulator biasing said pawl into said blocking position, said accumulator being displaceable to permit movement of said pawl from said blocking position into said release position under the force of said ejector.
Claim 12
Dependent Claim 16 words
A catch mechanism as set forth in claim 7 wherein said force accumulator is a spring.
Claim 13
Dependent Claim 28 words
A catch mechanism as set forth in claim 6 wherein said straight line path is disposed at an angle of from 10° to 20° to a vertical plane.
Claim 14
Dependent Claim 173 words
A catch mechanism for a weaving machine comprising a housing having a shaped channel therein for guiding a sequentially delivered series of gripper projectiles therein from a catching station to an ejection station; an ejector reciprocally mounted in said housing for movement in a straight-line path to move into said channel to eject a projectile in said ejection station from said channel, said ejector including a foot piece for engaging a foremost projectile in said channel at said ejection station and an intermediately disposed plate having a depression therein; a pawl movable between a blocking position in said channel to retain a series of projectiles in said channel and a release position spaced from said channel to permit passage of a foremost projectile thereby, said pawl having a stop movable into said depression upon ejection of a projectile; and a force accumulator biasing said pawl into said blocking position, said accumulator being displaceable to permit movement of said pawl from said blocking position into said release position under the force of said ejector.
Claim 15
Dependent Claim 173 words
A catch mechanism for a weaving machine comprising a housing having a shaped channel therein for guiding a sequentially delivered series of gripper projectiles therein from a catching station to an ejection station; an ejector reciprocally mounted in said housing for movement in a straight-line path to move into said channel to eject a projectile in said ejection station from said channel, said ejector including a foot piece for engaging a foremost projectile in said channel at said ejection station and an intermediately disposed plate having a depression therein; a pawl movable between a blocking position in said channel to retain a series of projectiles in said channel and a release position spaced from said channel to permit passage of a foremost projectile thereby, said pawl having a stop movable into said depression upon ejection of a projectile; and a force accumulator biasing said pawl into said blocking position, said accumulator being displaceable to permit movement of said pawl from said blocking position into said release position under the force of said ejector.

References Cited (Backward Citations)

US2538798A Cited
FR790166A Cited
US2696222A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-07-12 1986-01-11 1986-07-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-07-12 1990-01-11 1990-07-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-07-12 1994-01-11 1994-07-13 $7700.00 Window Closed / Lapsed

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