Patent US3771329A successfully refreshed from Google Patents.
US3771329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjusting device for the tightness of the knitting on knitting machines
Assignee: SCHIEBER R GmbH
•
Filing: 1972-01-31
•
Granted: 1973-11-13
•
Expires: 1992-01-31
Abstract
Abstract Knitting machine needle cam adjusting arrangements wherein a transport nut is moved along a shaft which is turned by a motor which also moves a potentiometer element forming a part of a bridge circuit which controls the motor to one of several optionally selectable positions. The transport nut is arranged to engage a stop on which a spring biased needle cam is mounted, to set the cam position.
Inventors
- 👤 E Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:36
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/32; D04B15/327; D04B15/66
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
120 words
Apparatus for adjusting the tightness of the knitting by changing the position of the stitch cams on knitting machines, such as flat-bed knitting machines, said apparatus comprising an electric motor mounted adjacent to a stitch cam to be adjusted and said motor being coupled to said cam to adjust the position thereof, and an electric motor control circuit for controlling the operation of said motor to adjust said cam to a predetermined position, said control circuit comprising an electric bridge circuit, said bridge circuit including, on one side thereof, an electric displacement pickup firmly connected with the stitch cam, and on the other side, at least one individually adjustable electric setting device via which the electric motor can be controlled.
Claim 2
Dependent Claim
120 words
Apparatus for adjusting the tightness of the knitting by changing the position of the stitch cams on knitting machines, such as flat-bed knitting machines, said apparatus comprising an electric motor mounted adjacent to a stitch cam to be adjusted and said motor being coupled to said cam to adjust the position thereof, and an electric motor control circuit for controlling the operation of said motor to adjust said cam to a predetermined position, said control circuit comprising an electric bridge circuit, said bridge circuit including, on one side thereof, an electric displacement pickup firmly connected with the stitch cam, and on the other side, at least one individually adjustable electric setting device via which the electric motor can be controlled.
Claim 3
Dependent Claim
15 words
Apparatus according to claim 1, by the fact that the electric setting devices are potentiometers.
Claim 4
Dependent Claim
17 words
Apparatus according to claim 1 wherein the electric displacement pickup is rigidly connected with the stitch cam.
Claim 5
Dependent Claim
25 words
Apparatus according to claim 1, wherein the electric setting devices are connectable in automatically optionally controlled manner with the control apparatus of the knitting machine.
Claim 6
Dependent Claim
45 words
Apparatus according to claim 1, wherein there is provided supporting means by which the entire adjusting device, including said stitch cam, is supported vertically under spring action in a carriage lock in such a manner that it can be moved upward by the needle butts.
Claim 7
Dependent Claim
31 words
Apparatus according to claim 5, wherein said supporting means includes guide elements mounted to permit the stitch cam to be adjusted upon movement of the adjusting device to an upward position.
References Cited (Backward Citations)
US1571765A
Cited
US3035426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |