US3636732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn-feeding means for knitting machines
Assignee: Bentley Engineering Co Ltd
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Filing: 1970-04-20
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Granted: 1972-01-25
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Expires: 1990-04-20
Abstract
Abstract A circular knitting machine is provided with a yarn feeder to be positioned in the neighborhood of the needle circle, and an arm carrying the yarn feeder pivoted at a distance from the needle circle for movement to bring the yarn feeder into and out of an active yarn-feeding position, and locating means to restrain the yarn feeder against undesired movement when in active position. In a machine having a multiplicity of knitting stations, all the feeder arms are pivoted about a common axis and the yarn feeders having long arms are provided with each locating means in the vicinity of the needle circle.
Inventors
- 👤 Keith Gerald Townsend
- 👤 David Arthur Harlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:00
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/38; D04B15/54; D04B15/58
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
74 words
In a circular knitting machine, the combination comprising: a yarn feeder to be positioned in the neighborhood of the needle circle, an arm carrying said yarn feeder, means mounting said arm at a distance from the yarn feeder for movement to bring the yarn feeder into and out of an active yarn feeding position, and locating means to restrain the feeder against undesired movement when the feeder is in an active yarn feeding position.
Claim 2
Dependent Claim
74 words
In a circular knitting machine, the combination comprising: a yarn feeder to be positioned in the neighborhood of the needle circle, an arm carrying said yarn feeder, means mounting said arm at a distance from the yarn feeder for movement to bring the yarn feeder into and out of an active yarn feeding position, and locating means to restrain the feeder against undesired movement when the feeder is in an active yarn feeding position.
Claim 3
Dependent Claim
19 words
A combination according to claim 1, wherein said locating means is positioned in the vicinity of the needle circle.
Claim 4
Dependent Claim
24 words
A combination according to claim 1, wherein said locating means includes means for restraining the yarn feeder against undesired movement both heightwise and laterally.
Claim 5
Dependent Claim
28 words
A combination according to claim 1 wherein the locating means includes means to position the yarn feeder accurately in relation to the needles when in a yarn-feeding position.
Claim 6
Dependent Claim
79 words
In a circular knitting machine having a multiplicity of feeding stations spaced apart around a needle cylinder, a combination according to claim 1 having a yarn feeder at each of said feeding stations, feeder-carrying arms one for each of said feeders means pivoting said arms to rock about a common axis displaced from the needle cylinder, and feeder locating means for at least each of those yarn feeders which are displaced to a substantial extent from said common axis.
Claim 7
Dependent Claim
42 words
A combination according to claim 1, wherein the feeder-locating means comprises a plate and means yieldably urging a part carried by the feeder arm at the feeder end yieldably towards said plate when said yarn feeder is in an active yarn-feeding position.
Claim 8
Dependent Claim
29 words
A combination according to claim 6 comprising spring means urging said part carried by the feeder arm against said plate to retain the yarn feeder frictionally against undesired displacement.
Claim 9
Dependent Claim
31 words
A combination according to claim 6 wherein said plate is provided with means defining a recessed seating into which said part carried by the feeder arm is urged to locate it.
Claim 10
Dependent Claim
64 words
A combination according to claim 5 wherein the feeder arms related to feeding stations on the side of the needle cylinder more distant from the pivotal axis of the feeder arms have their end parts offset angularly as viewed in plan from the main parts of said arms to reach partly round the needle cylinder to carry a yarn feeder at the required position.
Claim 11
Dependent Claim
28 words
A combination according to claim 1 including means for adjusting the operative height of a yarn feeder at which it is located in its active yarn feeding position.
Claim 12
Dependent Claim
30 words
A combination according to claim 10, wherein said adjusting means comprises a heightwise adjustable member having means therein defining an opening cooperative with a depending part of the feeder arm.
Claim 13
Dependent Claim
72 words
A combination according to claim 1 comprising two yarn feeders, one for a main yarn and the other for a terry yarn, carried by said arm and means mounting the yard feeder for the terry yarn against the other yaRn feeder to feed terry yarn at a higher level than the main yarn and permitting adjustment of the terry yarn feeder heightwise in relation to the yarn feeder for the main yarn.
Claim 14
Dependent Claim
86 words
A combination according to claim 1 comprising a latchguard ring, flanged nuts engaging the latchguard ring to anchor same at spaced intervals, an outer latch ring having spaced inturned lugs, bolts mounted in said inturned lugs and carrying said flanged nuts and a supporting plate below the latch ring engaged by said bolts, and wherein the yarn feeder depends when in an active yarn feeding position through the space between the latchguard ring and the latch ring to engage and be located on the supporting plate.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |