US3768244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ring rail lifting apparatus for spinning machinery
Assignee: Nihon Spindle Manufacturing Co Ltd
•
Filing: 1971-12-22
•
Granted: 1973-10-30
•
Expires: 1991-12-22
Abstract
Abstract A ring rail lifting apparatus for spinning machinery, including a pulse generating device for generating pulses according to the rotation speed of the frame motor of a spinning machine without receiving power from the frame, and a pulse motor operated by the pulses supplied from said pulse generating device. The driving mechanism operated by said pulse motor is arranged so as to give vertical motion to the ring rail, and this motion is controlled by an interlocking device interlocked with the ring rail.
Inventors
- 👤 S Yasutomi
- 👤 S Takahashi
- 👤 K Nerio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:11
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/14; D01H1/36
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
150 words
An apparatus for lifting a ring rail for spinning machinery, comprising means for generating pulses at a rate related to the speed at which thread is supplied to said ring rail; pulse motor means operatively coupled to said pulse generating means for operational response to the pulses generated by said pulse generating means; transmitting means operatively coupling said pulse motor and ring rail for the vertical displacement of said ring rail; and feedback means including detecting means directly coupled to said ring rail for displacement in response to the vertical displacement of said ring rail and control means mechanically coupled to said detecting means and said transmitting means and electrically coupled to said pulse motor means for the reversal of said pulse motor means and of the direction of vertical displacement of said ring rail at least in part in response to a predetermined traverse length of said ring rail.
Claim 2
Independent Claim
150 words
An apparatus for lifting a ring rail for spinning machinery, comprising means for generating pulses at a rate related to the speed at which thread is supplied to said ring rail; pulse motor means operatively coupled to said pulse generating means for operational response to the pulses generated by said pulse generating means; transmitting means operatively coupling said pulse motor and ring rail for the vertical displacement of said ring rail; and feedback means including detecting means directly coupled to said ring rail for displacement in response to the vertical displacement of said ring rail and control means mechanically coupled to said detecting means and said transmitting means and electrically coupled to said pulse motor means for the reversal of said pulse motor means and of the direction of vertical displacement of said ring rail at least in part in response to a predetermined traverse length of said ring rail.
Claim 3
Dependent Claim
80 words
An apparatus for lifting a ring rail as recited in claim 1, wherein said transmitting means iNcludes fluid actuated drive means operatively coupled to said ring rail for the displacement thereof and servo valve means operatively coupled to said fluid drive means for the control thereof, said servo valve means having a displaceable valve member mechanically coupled to said control means and said pulse motor means for the positioning thereof to regulate the direction of traverse of said ring rail.
Claim 4
Dependent Claim
142 words
An apparatus for lifting a ring rail as recited in claim 2, including coupling means intermediate said valve member and said control means, said coupling means including a socket member formed with a threaded bore and mounted for rotational displacement about the axis of said bore but restrained from axial displacement and a threaded shaft member received within said threaded bore and coupled to said valve member, said control means including means for rotating said socket member in response to the displacement of said detecting means, said transmission means including means rotatably coupling said pulse motor and said threaded shaft for the rotation thereof, said valve member being displaced to control the direction of traverse of said ring rail in response to the axial displacement of said threaded shaft in response to relative rotational displacement of said threaded shaft and socket member.
Claim 5
Dependent Claim
120 words
An apparatus for lifting a ring rail as recited in claim 1, wherein said control means includes a shaft operatively coupled to said detecting means for rotation thereby; a first contact arm; means coupling said first contact arm to said shaft for the rotation of said arm with said shaft while permitting the stopping of the rotation of said arm independent of the continued rotation of said shaft; and first and second fixed contacts circumferentially spaced about said shaft in the path of said first contact arm, said fixed contacts and contact arm being electrically coupled to said pulse motor so that engagement of said first contact arm and said fixed contacts at least in part controls the reversal thereof.
Claim 6
Dependent Claim
137 words
An apparatus for lifting a ring rail as recited in claim 4, wherein said control means includes means for counting a predetermined number of pulses from said pulse generating means after the rotation of said first arm is stopped by the engagement thereof with one of said fixed contact members during which time said pulse motor continues to rotate in the same direction until reversed upon the counting of said predetermined number of said pulses so that the reversal of the direction of traverse of said ring rail from at least one direction of said traverse is in response to the composite of the traverse of said ring rail a predetermined length in said direction represented by the circumferential spacing between said fixed contacts and a predetermined period of time represented by said predetermined member of pulses.
Claim 7
Dependent Claim
81 words
An apparatus for displacing a ring rail as recited in claim 4, including a second contact arm; means coupling said second contact arm to said shaft for the rotation thereof in response to the rotation of said shaft while permitting the continued rotation of said shaft upon the stopping of said second contact arm; and fixed contact means in the path of said second arm for at least in part controlling the joggling cycle of the displacement of said ring rail.
Claim 8
Dependent Claim
110 words
An apparatus for displacing a ring rail as recited in claim 1, wherein said pulse generating means is adapted to produce pulses of a low frequency, a medium frequency and a high frequency, said control means being adapted to apply said low frequency pulses to said pulse motor means to effect the rising building motion of said ring rail; to apply said medium frequency pulses to said pulse motor means to effect the falling building motion of said ring rail; and to apply said high frequency pulses to said pulse motor means to effect the joggling winding and the quick falling of the ring rail in the full cop operation.
Claim 9
Dependent Claim
38 words
An apparatus for lifting a ring rail as recited in claim 1, wherein said detecTing means is rigidly coupled to said ring rail, said control means being operative at least in part in response to said detecting 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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |