US3837077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shears for cutting a filling thread in a weaving machine
Assignee: Voestalpine AG
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Filing: 1973-09-07
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Granted: 1974-09-24
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Expires: 1993-09-07
Abstract
Abstract A stationary carrier is formed with a mouth defined by two spaced apart stationary cutting edges. The carrier has a sleevelike portion. A circular cylindrical rod has an angled end portion which constitutes a shear blade extending between said stationary cutting edges and having two cutting edges which are disposed on opposite sides of said blade and face respective ones of said stationary cutting edges. The rod is formed with a flat and extends in and is guided by said sleevelike portion and is reciprocable to cause said cutting edges of said blade to cooperate with said stationary cutting edges. A stationary leaf spring bears on said flat and tends to hold said rod in such an angular position that said blade crosses said stationary cutting edges.
Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:39
CPC Classifications
D; D03; D03D; D03D47/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
142 words
Shears for cutting a filling thread in a weaving machine, which shears comprise a stationary carrier formed with a mouth defined by two spaced apart stationary cutting edges, said carrier having a sleevelike portion, a circular cylindrical rod, which has an angled end portion which constitutes a shear blade extending between said stationary cutting edges and having two cutting edges which are disposed on opposite sides of said blade and face respective ones of said stationary cutting edges, said rod being formed with a flat and extending in and being guided by said sleevelike portion and being reciprocable to cause said cutting edges of said blade to cooperate with said stationary cutting edges, and a stationary leaf spring which bears on said flat and tends to hold said rod in such an angular position that said blade crosses said stationary cutting edges.
Claim 2
Dependent Claim
142 words
Shears for cutting a filling thread in a weaving machine, which shears comprise a stationary carrier formed with a mouth defined by two spaced apart stationary cutting edges, said carrier having a sleevelike portion, a circular cylindrical rod, which has an angled end portion which constitutes a shear blade extending between said stationary cutting edges and having two cutting edges which are disposed on opposite sides of said blade and face respective ones of said stationary cutting edges, said rod being formed with a flat and extending in and being guided by said sleevelike portion and being reciprocable to cause said cutting edges of said blade to cooperate with said stationary cutting edges, and a stationary leaf spring which bears on said flat and tends to hold said rod in such an angular position that said blade crosses said stationary cutting edges.
Claim 3
Dependent Claim
102 words
Shears as set forth in claim 1, in which said sleevelike portion has two recesses which are disposed on opposite sides of said sleevelike portion and extend parallel to the axis thereof, at least one of said recesses being formed with a window, said flat being exposed through said window in all positions which the rod is adapted to assume during its reciprocation, a resilient holder is provided, which is U-shaped and has two legs engaging said sleevelike portion in respective ones of said recesses, and said leaf spring consists of a tongue which is struck out of one of said legs.
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |