Patent US3861130A successfully refreshed from Google Patents.
US3861130A
Expired / Lapsed
US
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Auxiliary ring rail positioning means for textile twister or like machine
Assignee: SACO LOWELL CORP
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Filing: 1973-10-24
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Granted: 1975-01-21
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Expires: 1993-10-24
Abstract
Abstract In immediate response to the detection by a yardage counter or the like of a full package condition at the textile machine, the auxiliary ring rail positioning means rapidly moves each ring rail of the machine directly and unidirectionally, from whatever random vertical position it might then occupy, to a preselected doffing position preferably located between and in spaced relation to the opposite ends of the normal path of reciprocatory movement of the ring rail. Upon each subsequently ensuing startup of the machine, the auxiliary ring rail positioning means rapidly reciprocates each ring rail, between the aforesaid preselected doffing position and the lower limit of the rail''s normal path of reciprocatory movement, for an adjustably variable time period sufficient to ''''tie-in'''' the yarn ends.
Inventors
- 👤 Michael A Vidler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:49
CPC Classifications
D; D01; D01H; D01H13/00; D01H13/14; D01H13/24; D01H9/00; D01H9/02; D01H9/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
190 words
In a textile yarn twister or like machine adapted during normal operation to collect yarn for packages and during doffing to have empty package members substituted for full packages thereon, said machine having a builder mechanism, a ring rail reciprocatorily movable by said builder mechanism along a vertical path of travel during normal operation of said machine and adapted to be positioned preparatory to doffing of said machine at a preselected doffing position along said path of travel, and full package detecting means for detecting a full package condition at said machine, the improvement comprising: auxiliary ring rail positioning means for, in automatic response to each detection by said detecting means of a full package condition, rapidly and unidirectionally moving said ring rail to said preselected doffing position from the particular random position occupied by said ring rail upon said detection of said full package condition by said detecting means, said auxiliary means moving said ring rail downwardly to said preselected doffing position when said random ring rail position is thereabove and moving said ring rail upwardly to said preselected doffing position when said random ring rail position is therebelow.
Claim 2
Dependent Claim
190 words
In a textile yarn twister or like machine adapted during normal operation to collect yarn for packages and during doffing to have empty package members substituted for full packages thereon, said machine having a builder mechanism, a ring rail reciprocatorily movable by said builder mechanism along a vertical path of travel during normal operation of said machine and adapted to be positioned preparatory to doffing of said machine at a preselected doffing position along said path of travel, and full package detecting means for detecting a full package condition at said machine, the improvement comprising: auxiliary ring rail positioning means for, in automatic response to each detection by said detecting means of a full package condition, rapidly and unidirectionally moving said ring rail to said preselected doffing position from the particular random position occupied by said ring rail upon said detection of said full package condition by said detecting means, said auxiliary means moving said ring rail downwardly to said preselected doffing position when said random ring rail position is thereabove and moving said ring rail upwardly to said preselected doffing position when said random ring rail position is therebelow.
Claim 3
Dependent Claim
113 words
Apparatus as in claim 1, wherein said auxiliary ring rail positioning means includes reversible auxiliary ring rail drive means for when actuated in a first operating condition thereof moving said ring rail rapidly upwardly and for when actuated in a second operating condition thereof moving said ring rail rapidly downwardly, and control means for monitoring during operating of said machine the vertical position of said ring rail relative to said preselected doffing position thereof and for, upon the detection of a full package condition by said detecting means, actuating said auxiliary drive means in the appropriate one of said operating conditions thereof to move said ring rail unidirectionally to said preselected doffing position.
Claim 4
Dependent Claim
117 words
Apparatus as in claim 2 wherein said builder mechanism includes builder drive means, a windlass having a center shaft, a worm gear mounted upon said windlass shaft, a worm shaft for driving said worm gear, and first clutch means for when actuated operatively connecting said builder drive means to one end of said worm shaft, said auxiliary ring rail positioning means including second clutch means for when actuated operatively connecting said auxiliary drive means to the other end of said worm shaft, and said control circuit means including switching means for simultaneously deactuating said first clutch means and actuating said second clutch means upon each detection of a full package condition by said full package detecting means.
Claim 5
Dependent Claim
92 words
Apparatus as in claim 1, wherein said auxiliary ring rail positioning means includes reversible auxiliary ring rail drive means operatively connected to said ring rail during doffing of said machine, control means operatively connected to said auxiliary ring rail drive means for causing the same, upon start-up of said machine following the substitution of empty package members for full packages thereon, to rapidly reciprocate said ring rail for a preselected adjustable time period between said preselected doffing position of said ring rail and the bottom of said vertical path of travel thereof.
Claim 6
Dependent Claim
101 words
Apparatus as in claim 1, wherein said auxiliary Ring rail positioning means includes switching means actuable upon movement of said ring rail to said doffing position thereof, said switching means including a switch element and a cooperating switch actuating element, one of said elements being mounted for movement in unison with said ring rail along a path of travel correlated with said path of travel of said ring rail, and means mounting the other of said elements adjacent said path of travel of said one element for switch-actuating cooperating between said elements when said ring rail is in said doffing position.
Claim 7
Dependent Claim
30 words
Apparatus as in claim 5, wherein said mounting means mounts said other of said elements for adjustive movement parallel to said path of travel of said one of said elements.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |