Patent US1754404A successfully refreshed from Google Patents.
Patent US3840942A successfully refreshed from Google Patents.
US3840942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web control apparatus
Assignee: Individual
•
Filing: 1973-01-31
•
Granted: 1974-10-15
•
Expires: 1993-01-31
Abstract
Abstract A web control apparatus for a carding machine has a pair of spaced guides, one on each side of the web, with means for positioning said guides in a first predetermined fixed outer position out of confining engagement with the web and in a second predetermined fixed inner position closely adjacent web delivery means condensing the web in a substantially T-shaped configuration for delivery to calender rolls, and power operated means moving the guides from the first position to the second position, so that fibers of a moving web may be condensed into a cohesive strand for delivery to the calender rolls.
Inventors
- 👤 W Thomason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:03
CPC Classifications
D; D01; D01G; D01G15/00; D01G15/02; D01G15/12; D01G15/46
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
144 words
In a carding machine having a web delivery means carried adjacent a doffer and roll means receiving the web therefrom, the improvement comprising a web control apparatus interposed between said web delivery means and said roll means including: A. a pair of spaced guides; one on each side of the web; B. means positioning said guides in a first predetermined fixed position out of condensing engagement with the web; C. means positioning said guides in a second predetermined fixed position closely adjacent said web delivery means, said roll means pulling the web through the guides condensing said web in a substantially T-shaped configuration; D. power operated means moving said guides from said first position to said second position; and E. switch means for actuating said power operated means delivering said web; whereby the fibers of said web may be condensed into a cohesive strand.
Claim 2
Dependent Claim
144 words
In a carding machine having a web delivery means carried adjacent a doffer and roll means receiving the web therefrom, the improvement comprising a web control apparatus interposed between said web delivery means and said roll means including: A. a pair of spaced guides; one on each side of the web; B. means positioning said guides in a first predetermined fixed position out of condensing engagement with the web; C. means positioning said guides in a second predetermined fixed position closely adjacent said web delivery means, said roll means pulling the web through the guides condensing said web in a substantially T-shaped configuration; D. power operated means moving said guides from said first position to said second position; and E. switch means for actuating said power operated means delivering said web; whereby the fibers of said web may be condensed into a cohesive strand.
Claim 3
Dependent Claim
30 words
The structure set forth in claim 1, wherein said carding machine has sliver forming means receiving said cohesive strand and including means actuating said switch means responsive to said sliver.
Claim 4
Dependent Claim
16 words
The structure set forth in claim 1, wherein said power operated means includes a pneumatic cylinder.
Claim 5
Dependent Claim
36 words
The structure set forth in claim 1 including, a stop motion detecting the presence or absence of a strand from said calender rolls, and means positioning said switch means for actuation responsive to said stop motion.
Claim 6
Dependent Claim
122 words
A web control apparatus for a carding machine receiving a web from web delivery means for delivery to sliver forming means comprising: A. a trackway disposed transversely of said web closely adjacent said web delivery means; B. a pair of spaced guides, one on each side of the web, carried on said trackway; C. means positioning said guides in a first predetermined outer fixed position on said trackway out of condensing engagement with the web; D. means positioning said guides in a second predetermined inner fixed position on said trackway condensing said web in a substantially T-shaped configuration for delivery to the sliver forming means; and E. power operated means moving said guides from said outer position to said inner second position.
Claim 7
Dependent Claim
122 words
A web control apparatus for a carding machine receiving a web from web delivery means for delivery to sliver forming means comprising: A. a trackway disposed transversely of said web closely adjacent said web delivery means; B. a pair of spaced guides, one on each side of the web, carried on said trackway; C. means positioning said guides in a first predetermined outer fixed position on said trackway out of condensing engagement with the web; D. means positioning said guides in a second predetermined inner fixed position on said trackway condensing said web in a substantially T-shaped configuration for delivery to the sliver forming means; and E. power operated means moving said guides from said outer position to said inner second position.
Claim 8
Dependent Claim
38 words
The structure set forth in claim 5, wherein said power operated means includes a pneumatic cylinder and piston and wherein said means positioning said guides in a first position and in a second position includes a piston rod.
Claim 9
Dependent Claim
18 words
The structure set forth in claim 5 including, means actuating said power operated means responsive to said sliver.
References Cited (Backward Citations)
US2293712A
Cited
US2326331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |