US3728852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servicing assembly for automatic yarn piecing apparatus
Assignee: Maremont Corp
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Filing: 1971-06-03
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Granted: 1973-04-24
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Expires: 1991-06-03
Abstract
Abstract The disclosed servicing assembly, which preferably includes yarn-positioning and traveler-threading mechanisms, is operable adjacent a ring rail of the spinning machine being serviced by the piecing apparatus. The servicing assembly is mounted by a compound bracket upon an upright splined shaft, which shaft is rotatably mounted upon the mobile carriage of the piecing apparatus and operatively connected to a control cam mechanism of the apparatus, for cable-controlled vertical movement of the assembly longitudinally of the shaft and horizontal movement thereof in response to shaft rotation. A spring biased latch normally maintains the assembly in an elevated position above the maximum elevation of the ring rail of the spinning machine serviced by the apparatus. Release of the latch permits gravity descent of the assembly from its elevated position, whereupon a support member connected thereto is biased from a retracted position to an extended position wherein it overlays and engages the ring rail and thereby supports the assembly for vertical movement in unison therewith. Rotation of the splined shaft about its axis effects desired movement of the entire assembly horizontally toward and away from the spinning machine, and produces desired relative movement between a yarn depressor and other servicing components of the assembly. The yarn depressor preferably is provided with a cam surface engageable with the ring rail to insure its precise positioning relative thereto. Return upward movement of the assembly to its elevated position, which return movement is realized by a cable system having desirable ''''fail-safe'''' features, automatically effects reengagement of the latch and movement of the support member to its retracted position.
Inventors
- 👤 G Anderson
- 👤 A Harmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:03
CPC Classifications
D; D01; D01H; D01H15/00; D01H15/013
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
204 words
In an automatic yarn piecing apparatus servicing a textile spinning frame or like machine having a vertically movable ring rail, said apparatuS including a carriage movable longitudinally of said machine adjacent said ring rail, and a servicing assembly adapted during each piecing operation to be supported by said ring rail for movement therewith, the improvement comprising: assembly mounting means upon said carriage mounting said assembly for vertical movement thereof upwardly to and downwardly from an elevated position above the maximum elevation of said ring rail; a servicing assembly support member connected to said assembly for vertical movement therewith and for lateral movement relative thereto between an extended position wherein said support member projects from said carriage into overlying relationship with said ring rail and a retracted position wherein said support member is laterally offset from overlying relationship with said ring rail, said support member when in said extended position thereof being adapted to engage said ring rail and to thereby support said servicing assembly for said movement with said ring rail; and support member lateral moving means for laterally moving said support member from one to another of its said positions in response to vertical movement of said assembly adjacent said elevated position thereof.
Claim 2
Dependent Claim
204 words
In an automatic yarn piecing apparatus servicing a textile spinning frame or like machine having a vertically movable ring rail, said apparatuS including a carriage movable longitudinally of said machine adjacent said ring rail, and a servicing assembly adapted during each piecing operation to be supported by said ring rail for movement therewith, the improvement comprising: assembly mounting means upon said carriage mounting said assembly for vertical movement thereof upwardly to and downwardly from an elevated position above the maximum elevation of said ring rail; a servicing assembly support member connected to said assembly for vertical movement therewith and for lateral movement relative thereto between an extended position wherein said support member projects from said carriage into overlying relationship with said ring rail and a retracted position wherein said support member is laterally offset from overlying relationship with said ring rail, said support member when in said extended position thereof being adapted to engage said ring rail and to thereby support said servicing assembly for said movement with said ring rail; and support member lateral moving means for laterally moving said support member from one to another of its said positions in response to vertical movement of said assembly adjacent said elevated position thereof.
Claim 3
Dependent Claim
86 words
Apparatus as in claim 1, wherein said support member lateral moving means includes biasing means for biasing said support member toward said extended position thereof, and cam means mounted by said carriage adjacent said elevated position of said assembly, said support member engaging and being retracted by said cam means upon upward movement of said assembly to said elevated position thereof, and said support member disengaging said cam means and being extended by said biasing means upon downward movement of said assembly from said elevated position.
Claim 4
Dependent Claim
66 words
Apparatus as in claim 1, wherein said support member when in its extended position is adapted to engage said ring rail and support said assembly for vertical movement in unison with said ring rail at a desired distance above said ring rail, and further including adjustable means operatively associated with said support member for permitting adjustment of said distance between said assembly and said ring rail.
Claim 5
Dependent Claim
30 words
Apparatus as in claim 1, including releasable latch means carried by said carriage for releasably latching said assembly in its said elevated position upon upward movement of said assembly thereto.
Claim 6
Dependent Claim
57 words
Apparatus as in claim 1, wherein said assembly mounting means includes an upright shaft mounted upon said carriage for rotation about its axis, and bracket means connecting said assembly to said shaft for vertical movement longitudinally of said shaft and for lateral movement toward and away from said spinning machine in response to rotation of said shaft.
Claim 7
Dependent Claim
51 words
Apparatus as in claim 5, wherein said bracket means includes first and second bracket sections connected to said shaft and movable longitudinally thereof as a unit, said second bracket section being pivotable about the axis of said shaft relative to said first bracket section in response to rotation of said shaft.
Claim 8
Dependent Claim
50 words
Apparatus as in claim 6, wherein said second bracket section is pivotally connected to said assembly, and said bracket means further includes a third bracket section extending generally parallel to said second bracket section and pivotally connected adjacent its opposite ends to said first bracket section and to said assembly.
Claim 9
Dependent Claim
59 words
Apparatus as in claim 5, wherein said servicing assembly includes a plurality of servicing mechanisms, means mounting one of said mechanisms for movement relative to another of said mechanisms, and cooperating means upon said assembly and upon said bracket for initiating said movement of said one mechanism in response to movement of said assembly away from said spinning machine.
Claim 10
Dependent Claim
148 words
In an automatic yarn piecing apparatus servicing a textile spinning frame or like machine having a ring rail supporting a spinning ring mounting a traveler thereon, said apparatus including a servicing Assembly operable adjacent said ring rail and having a first servicing mechanism adapted to extend a length of yarn over said spinning ring and a second servicing mechanism adapted to engage and position said yarn for traveler-threading purposes, the improvement comprising: assembly mounting means mounting said assembly for movement toward and away from said spinning ring; mechanism mounting means upon said assembly mounting said second mechanism for movement relative to said first mechanism from an inoperative position to an operative position; and cooperating means associated with both of said mounting means for cooperatively effecting said movement of said second mechanism relative to said first mechanism in response to movement of said assembly away from said spinning ring.
Claim 11
Dependent Claim
148 words
In an automatic yarn piecing apparatus servicing a textile spinning frame or like machine having a ring rail supporting a spinning ring mounting a traveler thereon, said apparatus including a servicing Assembly operable adjacent said ring rail and having a first servicing mechanism adapted to extend a length of yarn over said spinning ring and a second servicing mechanism adapted to engage and position said yarn for traveler-threading purposes, the improvement comprising: assembly mounting means mounting said assembly for movement toward and away from said spinning ring; mechanism mounting means upon said assembly mounting said second mechanism for movement relative to said first mechanism from an inoperative position to an operative position; and cooperating means associated with both of said mounting means for cooperatively effecting said movement of said second mechanism relative to said first mechanism in response to movement of said assembly away from said spinning ring.
Claim 12
Dependent Claim
57 words
Apparatus as in claim 9, wherein said mechanism mounting means includes a pivot pin mounted upon said assembly for rotary movement about and linear movement longitudinally of its axis, said second mechanism being affixed to said pivot pin and pivotable therewith relative to said first mechanism upon predetermined linear movement of said pin longitudinally of its axis.
Claim 13
Dependent Claim
83 words
Apparatus as in claim 10, wherein said pivot pin extends substantially horizontally, and said second mechanism pivots downwardly about the axis of said pin in moving from its inoperative position and to its operative position, and further including stop means carried by said assembly and underlying said second mechanism when in its inoperative position to restrain said movement thereof to its operative position, said second mechanism being displaced from overlying engagement with said stop means by said predetermined linear movement of said pin.
Claim 14
Dependent Claim
137 words
In an automatic yarn piecing apparatus servicing a textile spinning frame or like machine having a vertically movable ring rail, said apparatus including a carriage movable longitudinally of said machine adjacent said ring rail, and a servicing assembly adapted during each piecing operation to be supported by said ring rail for movement therewith, the improvement comprising: assembly mounting means upon said carriage mounting said assembly for vertical movement upwardly to and downwardly from an elevated position above the maximum elevation of said ring rail; cable means upon said carriage for moving said assembly upwardly to its said elevated position and for permitting gravity descent of said assembly downwardly therefrom; and releasable latch means upon said carriage for releasably securing said assembly in its said elevated position upon upward movement of said assembly thereto by said cable means.
Claim 15
Dependent Claim
137 words
In an automatic yarn piecing apparatus servicing a textile spinning frame or like machine having a vertically movable ring rail, said apparatus including a carriage movable longitudinally of said machine adjacent said ring rail, and a servicing assembly adapted during each piecing operation to be supported by said ring rail for movement therewith, the improvement comprising: assembly mounting means upon said carriage mounting said assembly for vertical movement upwardly to and downwardly from an elevated position above the maximum elevation of said ring rail; cable means upon said carriage for moving said assembly upwardly to its said elevated position and for permitting gravity descent of said assembly downwardly therefrom; and releasable latch means upon said carriage for releasably securing said assembly in its said elevated position upon upward movement of said assembly thereto by said cable means.
Claim 16
Dependent Claim
124 words
Apparatus as in claim 12, wherein said assembly mounting means includes an upright shaft mounted upon said carriage for rotation about its axis, and bracket means connecting said assembly to said shaft for vertical movement longitudinally of said shaft and for lateral movement of said assembly toward and away from said spinning machine in response to rotation of said shaft, said latch means including a latch element movable into and out of the path of vertical travel of said bracket means and having a cam surface thereon causing movement of said latch element out of the path of vertical travel of said bracket means upon engagement thereby, and resilient means biasing said latch means into the path of vertical travel of said bracket means.
Claim 17
Dependent Claim
63 words
Apparatus as in claim 13, wherein said cable means includes a cable passing freely and substantially vertically through said bracket means and drivable in opposite directions, and lug means upon said cable engageable with said bracket means when said cable is driven upwardly through said bracket means, said lug means being movable relative to said bracket means when said cable is driven downwardly.
Claim 18
Dependent Claim
29 words
Apparatus as in claim 14, including a pair of oppositely rotatable capstans, said cable being wrapped a plurality of times about said capstans and driven thereby upon actuation thereof.
Claim 19
Dependent Claim
140 words
In an automatic yarn piecing apparatus servicing a textile spinning frame or like machine having a vertically movable ring rail, said apparatus including a carriage movable longitudinally of said machine forwardly of said ring rail, and a servicing assembly adapted to operate adjacent said ring rail, the improvement comprising: an upright shaft mounted upon said carriage for rotation about its axis; bracket means connecting said servicing assembly to said shaft for vertical movement of said bracket means and said assembly longitudinally of said shaft in unison with said ring rail and for lateral movement of said assembly toward and away from said ring rail in response to rotation of said shaft about its axis; and resilient means operatively connected to said shaft for rotating the same in a direction effective to cause movement of said assembly toward said ring rail.
Claim 20
Dependent Claim
140 words
In an automatic yarn piecing apparatus servicing a textile spinning frame or like machine having a vertically movable ring rail, said apparatus including a carriage movable longitudinally of said machine forwardly of said ring rail, and a servicing assembly adapted to operate adjacent said ring rail, the improvement comprising: an upright shaft mounted upon said carriage for rotation about its axis; bracket means connecting said servicing assembly to said shaft for vertical movement of said bracket means and said assembly longitudinally of said shaft in unison with said ring rail and for lateral movement of said assembly toward and away from said ring rail in response to rotation of said shaft about its axis; and resilient means operatively connected to said shaft for rotating the same in a direction effective to cause movement of said assembly toward said ring rail.
Claim 21
Dependent Claim
52 words
Apparatus as in claim 16, wherein said bracket means includes a plurality of interconnected bracket sections movable as a unit longitudinally of said shaft, one of said bracket sections being affixed to said shaft for pivotal movement in response to rotation of said shaft relative to the other of said bracket sections.
Claim 22
Dependent Claim
142 words
In an automatic yarn piecing apparatus servicing a textile spinning frame or like machine including a ring rail supporting a spinning ring having a traveler flange thereon, said apparatus including a servicing assembly adapted during each piecing operation to be moved generally horizontally toward said ring rail of said machine, the improvement comprising: a yarn depressor mechanism carried by said assembly for movement relative thereto in a generally vertical direction and for generally horizontal movement with said assembly into abutment with the main body portion of said spinning ring; and cam means carried by said depressor mechanism and engageable with said ring rail during said generally horizontal movement of said assembly for thereby moving said depressor generally vertically relative to said assembly to position said depressor a desired vertical distance from said traveler flange of said spinning ring abutted by said depressor.
Claim 23
Dependent Claim
142 words
In an automatic yarn piecing apparatus servicing a textile spinning frame or like machine including a ring rail supporting a spinning ring having a traveler flange thereon, said apparatus including a servicing assembly adapted during each piecing operation to be moved generally horizontally toward said ring rail of said machine, the improvement comprising: a yarn depressor mechanism carried by said assembly for movement relative thereto in a generally vertical direction and for generally horizontal movement with said assembly into abutment with the main body portion of said spinning ring; and cam means carried by said depressor mechanism and engageable with said ring rail during said generally horizontal movement of said assembly for thereby moving said depressor generally vertically relative to said assembly to position said depressor a desired vertical distance from said traveler flange of said spinning ring abutted by said depressor.
Claim 24
Dependent Claim
28 words
Apparatus as in claim 18, wherein said ring rail includes an annular ring holder encircling said spinning ring, and said cam means is engageable with said ring holder.
Claim 25
Dependent Claim
150 words
In an automatic yarn piecing apparatus servicing a textile spinning frame or like machine including a ring rail supporting a spinning ring thereon, said apparatus including a servicing assembly adapted during each piecing operation to be moved generally horizontally toward said ring rail of said spinning machine for positioning a servicing mechanism of said assembly adjacent said spinning ring, the improvement comprising: assembly mounting means including a bracket mounted for generally horizontal movement toward said ring rail during each piecing operation; means interconnecting said bracket and said assembly for generally horizontal movement of said assembly with said bracket and for adjustive lateral movement of said assembly relative to said bracket; and cam means carried by said servicing assembly and engageable with said spinning ring during said generally horizontal movement of said assembly for thereby adjustively moving said assembly laterally as required to align said servicing mechanism with said spinning ring.
Claim 26
Dependent Claim
150 words
In an automatic yarn piecing apparatus servicing a textile spinning frame or like machine including a ring rail supporting a spinning ring thereon, said apparatus including a servicing assembly adapted during each piecing operation to be moved generally horizontally toward said ring rail of said spinning machine for positioning a servicing mechanism of said assembly adjacent said spinning ring, the improvement comprising: assembly mounting means including a bracket mounted for generally horizontal movement toward said ring rail during each piecing operation; means interconnecting said bracket and said assembly for generally horizontal movement of said assembly with said bracket and for adjustive lateral movement of said assembly relative to said bracket; and cam means carried by said servicing assembly and engageable with said spinning ring during said generally horizontal movement of said assembly for thereby adjustively moving said assembly laterally as required to align said servicing mechanism with said spinning ring.
Claim 27
Dependent Claim
33 words
Apparatus as in claim 20, wherein said cam means comprises an arcuate member having a curvature complementary to the curvature of the outer surface of the main body portion of said spinning ring.
Claim 28
Dependent Claim
51 words
Apparatus as in claim 20, wherein said bracket includes a plurality of bracket sections, and lost-motion connecting means so interconnecting said assembly and one of said bracket sections as to permit said lateral movement of said assembly under the impetus of said engagement of said cam means with said spinning ring.
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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |