US3661019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for transforming a rotary motion into a linear reversing motion, particularly for textile machines
Assignee: Elitex Zavody Textilniho
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Filing: 1970-05-07
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Granted: 1972-05-09
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Expires: 1990-05-07
Abstract
Abstract A device for transforming a rotary motion into a reciprocatory linear motion. The device is useful, for example, for use as a yarn laying traverse mechanism for textile machines such as winding machines. Two spaced parallel cylinders are driven, usually at constant speed. The cylinders are provided with helical grooves, corresponding elements of which are in transverse alignment. A yarn guide member is mounted for travel between and longitudinally of the cylinders. The yarn guide member is provided with a transversely slidable pin; means is provided for shifting one end of the pin into the helical groove in one of the cylinders at the end of a forward stroke of the guide member, and for shifting the other end of the pin into the helical groove in the other of the cylinders at the end of the reverse stroke of the guide member.
Inventors
- 👤 Josef Kacalek
- 👤 Josef Bartos
- 👤 Miroslav Stransky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:51
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/08; F16H25/12; F16H25/122; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/18312; Y10T74/1832
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
171 words
A device for transforming a rotary motion to a reciprocatory linear motion, comprising two transversely spaced parallel rollers, means drivingly to connect the rollers to rotate in synchronism, a helical guiding groove in each roller, a guide member mounted between the rollers for reciprocation parallel thereto, a drive pin mounted on the guide member for reciprocation transversely of the rollers, means for shifting the drive pin at the ends of its strokes so that the pin drivingly engages the groove in one roller during the forward stroke of the guide member and drivingly engages the groove in the other roller during the reverse stroke of the guide member, and means at the longitudinally opposite ends of the device for stopping the guide member at the ends of its operative strokes, the means for shifting the drive pin so that it alternately engages the grooves in the opposite rollers comprising means on the driving pin engaged by the respective stop means at the ends of the operative strokes of the guide member.
Claim 2
Independent Claim
171 words
A device for transforming a rotary motion to a reciprocatory linear motion, comprising two transversely spaced parallel rollers, means drivingly to connect the rollers to rotate in synchronism, a helical guiding groove in each roller, a guide member mounted between the rollers for reciprocation parallel thereto, a drive pin mounted on the guide member for reciprocation transversely of the rollers, means for shifting the drive pin at the ends of its strokes so that the pin drivingly engages the groove in one roller during the forward stroke of the guide member and drivingly engages the groove in the other roller during the reverse stroke of the guide member, and means at the longitudinally opposite ends of the device for stopping the guide member at the ends of its operative strokes, the means for shifting the drive pin so that it alternately engages the grooves in the opposite rollers comprising means on the driving pin engaged by the respective stop means at the ends of the operative strokes of the guide member.
Claim 3
Dependent Claim
68 words
A device according to claim 1, wherein the drive pin has a passage therethrough directed parallel to the rollers, and wherein the confronting axially inner ends of the stop members are bevelled in opposite directions, the peaks of the stop members being receivable within the passage in the pin whereby to thrust the pin in opposite directions at the ends of successive operative strokes of the guide member.
Claim 4
Independent Claim
141 words
A device for transforming a rotary motion to a reciprocatory linear motion, comprising two transversely spaced parallel rollers, means drivingly to connect the rollers to rotate in synchronism, a helical guiding groove in each roller, a guide member mounted between the rollers for reciprocation parallel thereto, a drive pin mounted on the guide member for reciprocation transversely of the rollers, and means for shifting the drive pin at the ends of its strokes so that the pin drivingly engages the groove in one roller during the forward stroke of the guide member and drivingly engages the groove in the other roller during the reverse stroke of the guide member, the guide member having two oppositely disposed recesses, one at each of its transverse ends, said recesses accurately receiving the respective rollers whereby the rollers guide the guide member in its reciprocation.
Claim 5
Independent Claim
141 words
A device for transforming a rotary motion to a reciprocatory linear motion, comprising two transversely spaced parallel rollers, means drivingly to connect the rollers to rotate in synchronism, a helical guiding groove in each roller, a guide member mounted between the rollers for reciprocation parallel thereto, a drive pin mounted on the guide member for reciprocation transversely of the rollers, and means for shifting the drive pin at the ends of its strokes so that the pin drivingly engages the groove in one roller during the forward stroke of the guide member and drivingly engages the groove in the other roller during the reverse stroke of the guide member, the guide member having two oppositely disposed recesses, one at each of its transverse ends, said recesses accurately receiving the respective rollers whereby the rollers guide the guide member in its reciprocation.
Claim 6
Dependent Claim
57 words
A device according to claim 3 wherein the recesses have part-circular cylindrical guiding surfaces disposed with their axes parallel to the axes of the rollers, the rollers are of circular cylindrical configuration with the exception of the helical groove in each, and the circular cylindrical surface of each roller accurately engages the surface of the respective recess.
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |