US3572026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive control for roving frame
Assignee: N Schlumberger SAS
•
Filing: 1969-03-10
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Granted: 1971-03-23
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Expires: 1989-03-10
Abstract
Abstract A control for winding yarn in textile machines to rotate the bobbin at a speed which is inversely proportional to the diameter of the yarn wound on the bobbin including: a pair of cone pulleys with a transmission axially slidable with respect thereto and guided through a carriage. The carriage is threadedly engageable with an axially displaceable threaded member which in turn is connected to a compensating means whereby rotation of the cones axially displaces the threaded member through the belt and carriage, and this displacement is amplified by the compensating means thereby effecting the output of the pulley transmission and the rotational speed of the bobbin.
Inventors
- 👤 Jean Frederic Herubel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:13
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/14; D01H1/20; D01H1/32; D01H1/34
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
130 words
A control for textile machines comprising a driving cone pulley, a driven cone pulley, the axes of the pulleys being arranged substantially parallel to one another, a transmission belt operatively connected between the pulleys for transmitting torque from the driving pulley to the driven pulley, the transmission belt being arranged for axial sliding movement along to the pulleys, a member, a carriage for guiding the belt axially movable therewith, operatively connected to the member and axially displaceable in response to movements of the member in a first direction and compensating means responsive to the displacement of the member for effecting a further displacement of the member in a second direction and a further axial movement of the carriage and belt to thereby effect the output torque of the driving pulley.
Claim 2
Dependent Claim
130 words
A control for textile machines comprising a driving cone pulley, a driven cone pulley, the axes of the pulleys being arranged substantially parallel to one another, a transmission belt operatively connected between the pulleys for transmitting torque from the driving pulley to the driven pulley, the transmission belt being arranged for axial sliding movement along to the pulleys, a member, a carriage for guiding the belt axially movable therewith, operatively connected to the member and axially displaceable in response to movements of the member in a first direction and compensating means responsive to the displacement of the member for effecting a further displacement of the member in a second direction and a further axial movement of the carriage and belt to thereby effect the output torque of the driving pulley.
Claim 3
Dependent Claim
29 words
A control as claimed in claim 1, wherein the said member is threaded and the said carriage has a threaded portion and the operative connection is a threaded engagement.
Claim 4
Dependent Claim
78 words
A control as claimed in claim 2, wherein the compensating means includes a cam means for rotating the cam in response to a displacement of the member, a pivotally mounted lever connected to the member and including a follower portion responsive to the rotation of the cam whereby the displacement of the member in the first direction effects the rotation of the cam which pivots the lever which in turn further displaces the member in the first direction.
Claim 5
Dependent Claim
28 words
A control as claimed in claim 1 wherein means for returning the transmission belt to its initial axial position at the end of a working cycle are provided.
Claim 6
Dependent Claim
86 words
A control as claimed in claim 4 wherein the means for returning the transmission belt includes means responsive to the rotation of the cam to the end of the effective portion of the working cycle, said responsive means actuating an auxiliary driving means, said auxiliary driving means operatively connected to the driven pulley and the member for rotating the driven pulley and displacing the member in the reverse direction opposite to their normal directions of movement thereby returning the carriage and belt to their initial position.
Claim 7
Dependent Claim
33 words
A control as claimed in claim 5, wherein means are provided for driving the driving pulley, and wherein the said responsive means actuate means to uncouple the means for driving the driving pulley.
Claim 8
Dependent Claim
21 words
A control as claimed in claim 6 wherein the auxiliary driving means is connected to the member through a freewheel assembly.
Claim 9
Dependent Claim
27 words
A control as claimed in claim 7, wherein a transmission belt is continuously connected between the auxiliary driving means, the driving pulley and a free wheel assembly.
Claim 10
Dependent Claim
57 words
A control as claimed in claim 6 wherein a bobbin is provided, transmission means connected between the driven pulley and the bobbin and means for winding thread on the bobbin whereby variations in torque and the rotational speed of the driven pulley are in effect responsive to the degree of winding of the material on the bobbin.
Claim 11
Dependent Claim
65 words
A control as claimed in claim 9, wherein a rocker unit is provided for reciprocating movement of the bobbin and varying the rotation speed of the bobbin in response to the increase in material wound on the bobbin, wherein uncoupling means for the rocker unit are provided and wherein this uncoupling means is also actuated by the said responsive means to uncouple the rocker unit.
Claim 12
Dependent Claim
20 words
A control as claimed in claim 5, wherein The said responsive means includes an electrical circuit including a limit switch.
Claim 13
Dependent Claim
38 words
A control as claimed in claim 1, wherein the pulleys are arranged so that the belt engages a relatively large diameter of one pulley as it engages a relatively small diameter of the other pulley and vice versa.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |