Patent JPS6320210A successfully refreshed from Google Patents.
US3839939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strand carrier for braiding machines
Assignee: Boeing North American Inc
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Filing: 1971-05-25
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Granted: 1974-10-08
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Expires: 1991-05-25
Abstract
Abstract Strand carrier for high speed braiding machines having a rotatable bobbin from which strand material is withdrawn to be fabricated into braided material on the machine and spring clutch means including a first torque type coil spring for controlling the rotation of the bobbin in the strand withdrawal direction and a second torque type spring for controlling the rotation of the bobbin in a direction reverse to the strand withdrawal direction.
Inventors
- 👤 J Wily
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:48
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/02; B65H59/04; D; D04; D04C; D04C3/00; D04C3/02; D04C3/14; D04C3/18; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
243 words
A strand carrier for a braiding machine, said carrier having a foot member, a spindle on said foot member for rotatably supporting a bobbin of strand material, means for guiding said strand along a path from said bobbin to a point at which said strand is to be braided into fabric, a tension member for tensioning said strand in said path from said bobbin to said braiding point, and means for controlling the movement of said tension member between a strand take-up position and a second position, the improvement including a first member on said spindle connected to said bobbin for rotation therewith, a first spring means associated with said first member, a second member associated with said first spring means and said first member, said second member being operated to a first position by said tension member during movement thereof to said second position to condition said first spring means to release said first member and said bobbin for rotation in a strand pay-off direction, means for moving said second member to a second position when said tension member is moved to said strand take-up position, said first spring means being conditioned by movement of said second member to said second position to hold said first member and said bobbin against rotation in said strand pay-off direction, and means associated with said first member for holding said first member and said bobbin against movement in a direction reverse to said pay-off direction.
Claim 2
Dependent Claim
243 words
A strand carrier for a braiding machine, said carrier having a foot member, a spindle on said foot member for rotatably supporting a bobbin of strand material, means for guiding said strand along a path from said bobbin to a point at which said strand is to be braided into fabric, a tension member for tensioning said strand in said path from said bobbin to said braiding point, and means for controlling the movement of said tension member between a strand take-up position and a second position, the improvement including a first member on said spindle connected to said bobbin for rotation therewith, a first spring means associated with said first member, a second member associated with said first spring means and said first member, said second member being operated to a first position by said tension member during movement thereof to said second position to condition said first spring means to release said first member and said bobbin for rotation in a strand pay-off direction, means for moving said second member to a second position when said tension member is moved to said strand take-up position, said first spring means being conditioned by movement of said second member to said second position to hold said first member and said bobbin against rotation in said strand pay-off direction, and means associated with said first member for holding said first member and said bobbin against movement in a direction reverse to said pay-off direction.
Claim 3
Dependent Claim
101 words
A strand carrier according to claim 1 in which said first spring means comprises a torque type spring having coils normally tending to contract into gripping engagement with said first member to condition said first spring means to hold said first member and said bobbin against movement in said pay-off direction when said second member is in said second position, and said coils of said first spring means are expanded by said second member when moved to said first position to condition said first spring means to release said first member and said bobbin for rotation in said strand pay-off direction.
Claim 4
Dependent Claim
41 words
A strand carrier according to claim 1 in which said means for moving said second member to said second position comprises a spring connected to said second member, said spring normally tending to bias said second member to said second position.
Claim 5
Dependent Claim
133 words
A strand carrier according to claim 1 in which there is a third member supported in fixed position on said carrier, and said first spring means comprises a torque type spring having coils normally tending to contract into gripping engagement with said first and third members, one of the end coils of said first spring means being connected to said second member and the other end coil of said first spring means being connected to said third member, said coils of said first spring means being permitted to contract into gripping engagement with said first and third members when said second member is moved to said second position, and said coils of said first spring means being expanded to release said first member whEn said second member is moved to said first position.
Claim 6
Dependent Claim
96 words
A strand carrier according to claim 1 in which said means associated with said first member comprises a torque type coil spring having one end coil connected to a portion of said foot member, the coils of said coil spring normally tending to contract into gripping engagement with said first member and said portion of said foot member to hold said first member and said bobbin against rotation in said reverse direction, and said coils of said coil spring being arranged to release said first member during movement of said first member in said pay-off direction.
Claim 7
Dependent Claim
216 words
A strand carrier for a braiding machine comprising a base member, a spindle on said base member for rotatably supporting a bobbin of strand material, control means for guiding said strand along a path from said bobbin to a point at which said strand is to be braided into a fabric, said control means including a tensioning device movable between a strand take-up position and a second position and an actuator movable in response to said tensioning device, a brake member mounted on said spindle and connected to said bobbin for rotation therewith, a helical brake spring wound around said brake member, said spring being stressed and of a hand normally to wind down on said brake member to hold the brake member against rotation, an annular member operatively associated with said helical spring and said actuator, a part rigid with said annular member and engageable by said actuator when said tensioning device is in said second position, said part being operable upon engagement by said actuator to turn said annular member in a direction to unwind said helical spring to release said brake member and said bobbin for rotation in a strand pay-off direction, and further means to hold said brake member and said bobbin against rotation in a direction reverse to said pay-off direction.
Claim 8
Dependent Claim
216 words
A strand carrier for a braiding machine comprising a base member, a spindle on said base member for rotatably supporting a bobbin of strand material, control means for guiding said strand along a path from said bobbin to a point at which said strand is to be braided into a fabric, said control means including a tensioning device movable between a strand take-up position and a second position and an actuator movable in response to said tensioning device, a brake member mounted on said spindle and connected to said bobbin for rotation therewith, a helical brake spring wound around said brake member, said spring being stressed and of a hand normally to wind down on said brake member to hold the brake member against rotation, an annular member operatively associated with said helical spring and said actuator, a part rigid with said annular member and engageable by said actuator when said tensioning device is in said second position, said part being operable upon engagement by said actuator to turn said annular member in a direction to unwind said helical spring to release said brake member and said bobbin for rotation in a strand pay-off direction, and further means to hold said brake member and said bobbin against rotation in a direction reverse to said pay-off direction.
Claim 9
Dependent Claim
15 words
The strand carrier of claim 6, wherein said further means comprises cylindrically wound spring means.
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) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |