US4046099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for sizing a yarn sheet
Assignee: Tsudakoma Corp
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Filing: 1975-11-13
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Granted: 1977-09-06
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Expires: 1995-11-13
Abstract
Abstract Sizing of a yarn sheet is practiced without direct immersion into a size bath through running pressure contact of same with a rotary sizing roller while the process is so automatically controlled that, at starting of the sizing operation, the drive for running of the yarn sheet starts after all the related working elements are registered at their operative positions and, at stopping of the operation, the elements are released from the registered operative positions after the yarn sheet has come to a complete stop.
Inventors
- 👤 Tokuji Komatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:57
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/34; D06B1/00; D06B1/10; D06B1/14
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
226 words
Apparatus for sizing a yarn sheet comprising, in combination, a rotary feed roller of said yarn sheet a size bath, a rotary sizing roller partly immersed in said size bath, first means for placing said yarn sheet in pressure contact with said sizing roller in the area not immersed in said size bath, a rotary squeeze roller for forming a nip for said yarn sheet in cooperation with a bottom roller, second means for placing said squeeze roller in pressure contact with said bottom roller, a drive motor mechanically coupled to said feed, sizing and bottom rollers, means for simultaneously actuating operations of said first and second placing means, and an automatic control device electrically coupled to said drive motor and said actuating means and provided with stopping and starting switches, said control device comprising means operating immediately in response to actuation of said starting switch for operating said actuating means, and for initiating the operation of said drive motor following a predetermined time after actuation of said starting switch and for removing power from said drive motor immediately upon actuation of said stopping switch and for reversing the operation of said actuating means following a second predetermined time after actuation of said stopping switch, said second predetermined time being sufficient to insure that inertia running of said yarn sheet has come to a complete stop.
Claim 2
Dependent Claim
226 words
Apparatus for sizing a yarn sheet comprising, in combination, a rotary feed roller of said yarn sheet a size bath, a rotary sizing roller partly immersed in said size bath, first means for placing said yarn sheet in pressure contact with said sizing roller in the area not immersed in said size bath, a rotary squeeze roller for forming a nip for said yarn sheet in cooperation with a bottom roller, second means for placing said squeeze roller in pressure contact with said bottom roller, a drive motor mechanically coupled to said feed, sizing and bottom rollers, means for simultaneously actuating operations of said first and second placing means, and an automatic control device electrically coupled to said drive motor and said actuating means and provided with stopping and starting switches, said control device comprising means operating immediately in response to actuation of said starting switch for operating said actuating means, and for initiating the operation of said drive motor following a predetermined time after actuation of said starting switch and for removing power from said drive motor immediately upon actuation of said stopping switch and for reversing the operation of said actuating means following a second predetermined time after actuation of said stopping switch, said second predetermined time being sufficient to insure that inertia running of said yarn sheet has come to a complete stop.
Claim 3
Dependent Claim
87 words
Apparatus as claimed in claim 1 in which said actuating means includes a first piston cylinder connected to said first placing means, a second piston cylinder connected to said second placing means, a pressure fluid supply source, an electro-magnetic check valve connected to said pressure fluid supply source and electrically coupled to said automatic control device, a first piping connecting said check valve to the upper chambers of said piston cylinders and a second piping connecting said check valve to the lower chambers of said piston cylinders.
Claim 4
Dependent Claim
67 words
Apparatus as claimed in claim 1 in which said automatic control device includes a machine starting and stopping circuit including said stopping and starting switches; said actuating means comprising a roller lowering circuit, a roller lifting circuit; and a drive motor actuating circuit, all of said circuits being connected in parallel to each other, between a pair of output lines coupled to a given electric power source.
Claim 5
Dependent Claim
107 words
Apparatus as claimed in claim 3 in which said machine stopping and starting circuit includes a first sub-circuit coupled at one terminal thereof to one of said output lines and comprising first, second and third relays arranged in parallel to each other, a second sub-circuit coupled at one terminal thereof to the other terminal of said first sub-circuit and comprising a relay a-contact of said first relay, and said starting switch arranged in parallel to each other, and said stopping switch coupled at one terminal thereof to the other terminal of said second sub-circuit and at the other terminal thereof to the other of said output lines.
Claim 6
Dependent Claim
16 words
Apparatus as claimed in claim 4 in which said stopping switch is of a self-return type.
Claim 7
Dependent Claim
16 words
Apparatus as claimed in claim 4 in which said starting switch is of a self-return type.
Claim 8
Dependent Claim
36 words
Apparatus as claimed in claim 4 in which said roller lowering circuit includes a relay a-contact of said second relay and a first solenoid for said actuating means, both being coupled in series to each other.
Claim 9
Dependent Claim
16 words
Apparatus as claimed in claim 7 in which said relay a-contact is of a time-limit-return type.
Claim 10
Dependent Claim
36 words
Apparatus as claimed in claim 4 in which said roller lifting circuit includes a relay b-contact of said second relay and a second solenoid for said actuating means, both being coupled in series to each other.
Claim 11
Dependent Claim
16 words
Apparatus as claimed in claim 9 in which said relay b-contact is of a time-limit-return type.
Claim 12
Dependent Claim
37 words
Apparatus as claimed in claim 4 in which said drive motor actuating circuit includes a relay a-contact of said third relay and an electro-magnetic contact for said drive motor, both being coupled in series to each other.
Claim 13
Dependent Claim
16 words
Apparatus as claimed in claim 11 in which said relay a-contact is of a time-limit-acting type.
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) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |