Patent US3996973A successfully refreshed from Google Patents.
US3996973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive shaft for swinging of reed teeth
Assignee: Ruti Machinery Works Ltd
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Filing: 1975-07-07
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Granted: 1976-12-14
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Expires: 1995-07-07
Abstract
Abstract Shaft arrangement for the swinging of reed teeth in a wave-type loom in which at least one lubricating groove extends the length of the shaft that drives the swinging of the reed teeth.
Inventors
- 👤 Edgar Strauss
- 👤 Xaver Gsell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:32
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/12; D03D47/26; D03D47/262; D03D47/265
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
136 words
Shaft arrangement on a traveling wave loom for the pivoting of the reed teeth during the operation of the loom in which reed teeth are formed of elongated thin blades, the wide sides of which are perpendicular to a helically profiled contracting surface of a rotating screw shaft of said shaft arrangement and one edge of each abuts against the surface of said shaft, at least one lubricating groove extending the length of said shaft for supplying lubricant between the contacting surfaces of said surface and said one edge abutting against said surface and a lubricant holder means which is impregnated with a lubricant being contained in said groove, said groove following the profile of said shaft so as to always be forward of the point of maximum pressure between said surface and said one edge.
Claim 2
Dependent Claim
136 words
Shaft arrangement on a traveling wave loom for the pivoting of the reed teeth during the operation of the loom in which reed teeth are formed of elongated thin blades, the wide sides of which are perpendicular to a helically profiled contracting surface of a rotating screw shaft of said shaft arrangement and one edge of each abuts against the surface of said shaft, at least one lubricating groove extending the length of said shaft for supplying lubricant between the contacting surfaces of said surface and said one edge abutting against said surface and a lubricant holder means which is impregnated with a lubricant being contained in said groove, said groove following the profile of said shaft so as to always be forward of the point of maximum pressure between said surface and said one edge.
Claim 3
Dependent Claim
40 words
The shaft arrangement according to claim 1 in which the shaft about which the reed teeth pivot has at least two grooves which extend parallel to the shaft axis and are arranged with rotational symmetry with respect to the latter.
Claim 4
Dependent Claim
17 words
The shaft arrangement according to claim 1 in which the lubricant is substantially nonvolatile and chemically stable.
Claim 5
Dependent Claim
18 words
The shaft arrangement according to claim 1 in which the lubricant is in the form of a grease.
Claim 6
Dependent Claim
25 words
The shaft arrangement according to claim 1 in which the lubricant contains natural wax and the surface of the shaft is formed from polyoxymethylene-type plastic.
Claim 7
Dependent Claim
25 words
The shaft arrangement according to claim 1 in which the lubricant contains paraffin wax and the surface of the shaft is formed from polyoxymethylene-type plastic.
Claim 8
Dependent Claim
19 words
The shaft arrangement according to claim 1 in which the lubricant holder means is formed of a textile braid.
Claim 9
Dependent Claim
24 words
The shaft arrangement according to claim 1 in which the lubricant holder means has a relatively dense surface and consists of relatively wear-resistant material.
Claim 10
Dependent Claim
31 words
The shaft arrangement according to claim 1 in which the groove is open below the lubricant holder means towards at least one interconnected storage space for containing a supply of lubricant.
Claim 11
Dependent Claim
39 words
The shaft arrangement according to claim 9 in which the groove is of rectangular cross-section and along its bottom surface there extends a second groove serving as lubricant storage space which second groove is narrower than said first groove.
Claim 12
Dependent Claim
41 words
The shaft arrangement according to claim 9 in which hollow spaces are provided at regular distances apart from each other serving as lubricant storage spaces along the groove from the bottom surface of the groove towards the inside of the shaft.
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) | 1979-12-14 | 1980-06-14 | 1980-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-14 | 1984-06-14 | 1984-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-14 | 1988-06-14 | 1988-12-14 | $7700.00 | Window Closed / Lapsed |