US3915199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring the inserting length of a plurality of wefts in a shuttleless loom
Assignee: Teijin Ltd
•
Filing: 1973-08-08
•
Granted: 1975-10-28
•
Expires: 1993-08-08
Abstract
Abstract An apparatus for measuring the inserting lengths of a plurality of different kinds of wefts in a shuttleless loom which comprises contacting or retracting measuring rollers with or from a measuring drum to withdraw a plurality of wefts from supply packages outside the loom and delivering the wefts to storing devices or stopping them, wherein the measuring rollers are rotated at the same peripheral speeds as that of the measuring roller even while these measuring rollers are spaced from the measuring drum, thereby to render the delivery length of the wefts equal to the product of the peripheral speed of the measuring drum and by the contacting time of the measuring rollers. If desired, the wefts are gripped on the weft supply package side of the measuring drum when the measuring roller departs from the measuring drum to stop the withdrawing of the weft. The retracting and contacting actions of the mearasuring rollers may be transmitted to the supporting arms for the measuring rollers through a single transmission mechanism.
Inventors
- 👤 Kazuyoshi Kida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:19
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/34; D03D47/36; D03D47/361
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
139 words
An apparatus for measuring the insertion lengths of wefts of different types inserted into a shuttleless loom, wherein said apparatus comprises: at least one rotating measuring drum; a plurality of measuring rollers mounted on shafts wherein at least one measuring roller is provided for each type of weft; individual arm means supporting each roller adjacent to said measuring drum; means for bringing said rollers selectively and individually into engagement with said measuring drum to advance the associated weft between the roller and drum while measuring the lengths of said weft; and flexible means for coupling the shafts on which the rollers are mounted wherein the rollers out of engagement with the drum are coupled to the roller in engagement with the drum to rotate the rollers out of engagement at the same peripheral speed as the roller in engagement.
Claim 2
Independent Claim
139 words
An apparatus for measuring the insertion lengths of wefts of different types inserted into a shuttleless loom, wherein said apparatus comprises: at least one rotating measuring drum; a plurality of measuring rollers mounted on shafts wherein at least one measuring roller is provided for each type of weft; individual arm means supporting each roller adjacent to said measuring drum; means for bringing said rollers selectively and individually into engagement with said measuring drum to advance the associated weft between the roller and drum while measuring the lengths of said weft; and flexible means for coupling the shafts on which the rollers are mounted wherein the rollers out of engagement with the drum are coupled to the roller in engagement with the drum to rotate the rollers out of engagement at the same peripheral speed as the roller in engagement.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1, wherein said coupling means includes endless transmission means entrained to drive each roller from a common shaft.
Claim 4
Dependent Claim
30 words
The apparatus of claim 2, wherein the endless transmission means includes a pulley secured to rotate with each roller and an endless belt connecting each pulley to the common shaft.
Claim 5
Independent Claim
35 words
The apparatus of claim l further including means for causing a subsequent roller to engage the drum and advance a subsequent weft when each roller retracts away from the drum after having advanced a weft.
Claim 6
Dependent Claim
35 words
The apparatus of claim 1, wherein the means for bringing the rollers into engagement with the drum are arms and wherein a single transmitting mechanism operates the arms to engage the rollers with the drum.
Claim 7
Dependent Claim
66 words
The apparatus of claim 5, wherein the means for engaging and disengaging the rollers with the drum includes: a cam rotated in accordance with a change mechanism of a loom; a rod reciprocated by said cam; and a crank reciprocated by said rod to raise and lower arms upon which the rollers are mounted via cams attached to the cranks that engage followers on the arms.
Claim 8
Dependent Claim
35 words
The apparatus of claim 2, wherein the means for bringing the rollers into engagement with the drum are arms and wherein a single transmitting mechanism operates the arms to engage the rollers with the drum.
Claim 9
Independent Claim
164 words
An apparatus for measuring the insertion lengths of wefts of different types inserted into a shuttleless loom, wherein said apparatus comprises: at least one rotating measuring drum; a plurality of measuring rollers wherein at least one measuring roller is provided for each type of weft; individual arm means supporting each roller adjacent to said measuring drum; means for bringing said rollers selectively and individually into engagement with said measuring drum to advance the associated weft between the roller and drum while measuring the lengths of said weft; and means for coupling the rollers out of engagement with the drum to the roller in engagement with the drum to rotate the rollers out of engagement at the same peripheral speed as the roller in engagement, wherein said coupling means includes tiltable drive rollers which remain in engagement with the measuring rollers to rotate the measuring roller out of engagement with the drum at the same speed as the measuring roller in engagement with the drum.
Claim 10
Independent Claim
164 words
An apparatus for measuring the insertion lengths of wefts of different types inserted into a shuttleless loom, wherein said apparatus comprises: at least one rotating measuring drum; a plurality of measuring rollers wherein at least one measuring roller is provided for each type of weft; individual arm means supporting each roller adjacent to said measuring drum; means for bringing said rollers selectively and individually into engagement with said measuring drum to advance the associated weft between the roller and drum while measuring the lengths of said weft; and means for coupling the rollers out of engagement with the drum to the roller in engagement with the drum to rotate the rollers out of engagement at the same peripheral speed as the roller in engagement, wherein said coupling means includes tiltable drive rollers which remain in engagement with the measuring rollers to rotate the measuring roller out of engagement with the drum at the same speed as the measuring roller in engagement with the drum.
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) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |