US3919952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Looper or needle eccentric adjustment means for tufting machines
Assignee: Philips Road Engineering Ltd
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Filing: 1974-07-11
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Granted: 1975-11-18
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Expires: 1994-07-11
Abstract
Abstract A tufting machine which includes a rockable jack shaft carrying at one side of the machine a duplicated jack shaft lever coupled to impart operational movement to loopers or neeldes of the machine, the duplicated jack shaft lever consisting of two levers of different length disposed side by side, both levers being independently and detachably connected to the jack shaft, the longer lever being connected at its end remote from the jack shaft to means for rocking the jack shaft and the shorter lever being connected at its end remote from the jack shaft to the longer lever by an eccentric stud which is rotatable to effect relative angular adjustment of the levers.
Inventors
- 👤 Ernest Kenneth Lund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:20
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/16; D05C15/20; D05C15/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
155 words
In a tufting machine, the combination of a machine element mounted for movement to and fro in a predetermined but adjustable stroke, a continuously rotatable drive shaft and an operating linkage for imparting said movement to said machine element from said drive shaft, said operating linkage including a rocking shaft, a duplicated lever comprising a first lever and a second lever each having a first and a second end, first releasable means connecting the first end of the first lever to the rocking shaft, independent second releasable means connecting the first end of the second lever to the rocking shaft, means connecting the second end of the first lever to a member of said operating linkage, and an eccentric stud and slot means interconnecting the second end of the second lever to the first lever, said eccentric stud being rotatable to effect relative angular adjustment of said levers upon release of said first releasable means.
Claim 2
Dependent Claim
155 words
In a tufting machine, the combination of a machine element mounted for movement to and fro in a predetermined but adjustable stroke, a continuously rotatable drive shaft and an operating linkage for imparting said movement to said machine element from said drive shaft, said operating linkage including a rocking shaft, a duplicated lever comprising a first lever and a second lever each having a first and a second end, first releasable means connecting the first end of the first lever to the rocking shaft, independent second releasable means connecting the first end of the second lever to the rocking shaft, means connecting the second end of the first lever to a member of said operating linkage, and an eccentric stud and slot means interconnecting the second end of the second lever to the first lever, said eccentric stud being rotatable to effect relative angular adjustment of said levers upon release of said first releasable means.
Claim 3
Dependent Claim
16 words
A tufting machine according to claim 1, wherein said machine element comprises a number of loopers.
Claim 4
Dependent Claim
16 words
A tufting machine according to claim 1, wherein said machine element comprises a number of needles.
Claim 5
Dependent Claim
47 words
A tufting machine according to claim 1, wherein said eccentric stud has a larger portion engaging a hole in said first lever and an eccentric similar portion engaging a slot in said second lever, said machine including a lock nut on the smaller portion of said stud.
Claim 6
Dependent Claim
34 words
A tufting machine according to claim 2, which includes a shaft carrying said loopers, a bracket on said shaft, an arm on said rocking shaft and a link coupling said bracket to said arm.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |