US3755033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for producing hems on cloth articles by means of adhesive
Assignee: SHERRILL INDUSTRIES Inc A CORP OF NC
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Filing: 1971-05-14
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Granted: 1973-08-28
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Expires: 1991-05-14
Abstract
Abstract A predetermined or sensed length of fabric, such as toweling, is delivered to a position between fixed and movable devices having parts which, upon engaging the fabric, have the capability of forming and folding it to produce industry standard hems. The fabric is severed between hem portions so that one hem is developed on the trailing end of one article while simultaneously a second hem is developed on the leading end of the next article. A part of the folding means also has the capability of depositing adhesive within the second fold of each hem to secure the hem without stitching after the application of pressure.
Inventors
- 👤 R Emus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:15
CPC Classifications
D; D06; D06H; D06H5/00; D03; D03D; D03D47/00; D03D47/40; D03D47/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
154 words
A method of producing hems on cloth articles comprising feeding a cloth web to a hemming station and arresting movement of the web at such station, engaging the cloth web at the hemming station on opposite sides by coacting folding means and producing in the cloth web substantially simultaneously first folds for a pair of hemS and substantially simultaneously severing the web substantially midway between the first folds by a means other than said folding means, turning the first folds substantially 90* oppositely with respect to the plane of the web, engaging the web on opposite sides in the regions of the first folds to produce second folds therein substantially simultaneously and depositing adhesive material into the second folds of the hems being produced, and pressing the double folded hems with the adhesive therein as the adhesive depositing means is withdrawn from the second folds of the hems to thereby complete the two hems.
Claim 2
Independent Claim
154 words
A method of producing hems on cloth articles comprising feeding a cloth web to a hemming station and arresting movement of the web at such station, engaging the cloth web at the hemming station on opposite sides by coacting folding means and producing in the cloth web substantially simultaneously first folds for a pair of hemS and substantially simultaneously severing the web substantially midway between the first folds by a means other than said folding means, turning the first folds substantially 90* oppositely with respect to the plane of the web, engaging the web on opposite sides in the regions of the first folds to produce second folds therein substantially simultaneously and depositing adhesive material into the second folds of the hems being produced, and pressing the double folded hems with the adhesive therein as the adhesive depositing means is withdrawn from the second folds of the hems to thereby complete the two hems.
Claim 3
Dependent Claim
28 words
A method as defined by claim 1, and wherein the adhesive is deposited laterally in the second folds of the hems by the means producing the second folds.
Claim 4
Dependent Claim
38 words
A method as defined by claim 1, and wherein the adhesive is deposited longitudinally along the second folds of the hems by the means producing the second folds as such means is withdrawn longitudinally from the second folds.
Claim 5
Independent Claim
152 words
A method of producing industry standard hems on cloth articles comprising the steps of feeding a cloth web intermittently vertically between two opposing coacting hemming means, engaging the cloth web with said means on opposite sides of the web while the web is at a dwell in its movement and forming a pair of first folds in the web which are vertically spaced, severing the web between said first folds while said engagement of the web is maintained, turning the first folds upwardly and downwardly substantially 90* after said severing and disengaging the opposite sides of the web, again engaging the opposite sides of the web with said means to form second folds therein adjacent the first folds, injecting adhesive into the second folds and pressing the first and second folds together firmly in a vertical direction while said folds are held generally at right angles to the plane of the web.
Claim 6
Independent Claim
152 words
A method of producing industry standard hems on cloth articles comprising the steps of feeding a cloth web intermittently vertically between two opposing coacting hemming means, engaging the cloth web with said means on opposite sides of the web while the web is at a dwell in its movement and forming a pair of first folds in the web which are vertically spaced, severing the web between said first folds while said engagement of the web is maintained, turning the first folds upwardly and downwardly substantially 90* after said severing and disengaging the opposite sides of the web, again engaging the opposite sides of the web with said means to form second folds therein adjacent the first folds, injecting adhesive into the second folds and pressing the first and second folds together firmly in a vertical direction while said folds are held generally at right angles to the plane of the web.
References Cited (Backward Citations)
US2744844A
Cited
US2740457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |