US3759457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web-guiding apparatus and position-sensing and control unit therefor
Assignee: AIR TROL SYSTEMS Inc
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Filing: 1971-12-01
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Granted: 1973-09-18
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Expires: 1991-12-01
Abstract
Abstract A web-guiding apparatus and position-sensing and control unit therefor for use in sensing and maintaining the proper position and alignment of a web of paper or like flexible sheet material unwound from a roll thereof mounted on a web-supporting roll or cylinder which, in turn, is mounted on a movable supporting frame or carriage for use with web-laminating or sheet-laminating apparatus for laminating a first sheet or web of flexible sheet material, such as paper, plastic resinous film, or the like, to a second sheet or web of the same or comparable flexible sheet material, and for similar purposes, such as sensing and maintaining the proper position of an endless belt conveyor. The supporting frame or carriage is movable transversely of the web of sheet material by hydraulically actuated power means which is under the control of pneumatic pressure-applying means so as to maintain proper alignment of the web and its lateral or side marginal edges during movement of the web during the operation of laminating the first web of flexible sheet material to a second web of flexible sheet material, or when the web is moved for other purposes. The pneumatic pressure-applying means is under the control of air flow control valve means which, in turn, is under the control of pneumatically controlled web-misalignment and position sensing means which senses and is responsive to the normal proper operating position of a marginal or lateral edge portion of the web of flexible sheet material, and to lateral movement thereof during lengthwise movement of the web. The position-sensing means or unit controls the operation of the air flow control valve means for the pneumatic pressure-applying means and actuates the pneumatic pressure-applying means and the hydraulically-actuated power means so as to move the movable roll-supporting frame or carriage and the roll of flexible sheet material mouted thereon transversely of the long axis or direction of travel of the web to correct lateral misalignment or movement of the web and thus maintain the web of flexible sheet material in its normal and proper operating position. The position sensing means or unit maintains the air flow control means in normally-closed position and the pneumatic pressureapplying means inactive when the web of flexible sheet material is in its normal and proper operating position. The invention embodies manually operable control means for the air flow control valve means to enable the pneumatic pressureapplying means and the power means to be controlled manually. The position-sensing and control unit may also be used with a web of flexible sheet material having a scalloped, notched or like serrated marginal edge portion and for sensing and maintaining proper alignment of an endless belt conveyor.
Inventors
- 👤 F Edes
- 👤 H Gianatasio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:59
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/02; B65H23/032; B65H23/0326; B65G; B65G39/00; B65G39/10; B65G39/12; B65G39/16; B65H23/0204; B65H23/0212; D; D21; D21F; D21F1/00; D21F1/36; D21F1/365; F; F15; F15B; F15B5/00; F15B5/003
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
463 words
Apparatus for guiding a movable sheet of flexible material having lateral outer marginal edge portions and which is movable lengthwise along the longitudinal axis of the said sheet of flexible material relative to the said lateral outer marginal edge portions thereof, comprising: a. first supporting means for supporting the said movable sheet of flexible material for movement lengthwise of its said longitudinal axis; b. second supporting means or movably supporting the said first supporting means and the said sheet of flexible material supported thereby for movement in a direction generally transversely relative to the said longitudinal axis of the said sheet of flexible material; c. pneumatic position-sensing means arranged at a point along one of the said lateral outer marginal edge portions of the said movable sheet of flexible material for sensing lateral movement of the said sheet of flexible material in a direction generally transversely relative to the said longitudinal axis of the sheet of flexible material and in a direction toward or away from the said one lateral outer marginal edge portion of the said movable sheet of flexible material; d. power means for moving the said second supporting means and the said first supporting means and the said sheet of flexible material carried thereby in a direction generally transversely relative to the said longitudinal axis of the said sheet of flexible material; and e. pneumatically operated means under the control of the said position-sensing means for actuating the said power means including 1. first pneumatically operated means for actuating the said power means; and 2. second pneumatically operated means for actuating the said first pneumatically operated actuating means for the said power means; f. the said first pneumatically operated means for actuating the said power means including 1. a first pneumatic system for supplying air under pressure to the said power means including a) a pair of normally closed air flow control valves for selectively controlling the flow of air under pressure through said first pneumatic system to actuate the said first pneumatic system to actuate the said power means at different times in either of two opposite directions; and 2. a second pneumatic system under control of and responsive to the said position-sensing means for selectively controlling the operation of the said normally closed air flow control valves so as to selectively open the said normally closed air flow control valves and thereby actuate the said power means in a direction to move the said second supporting means and the said flexible sheet material carried thereby in a direction transversely relative to the longitudinal axis of the said flexible sheet material to correct the lateral misalignment of the said flexible sheet material to correct lateral misalignment of the said flexible sheet material as sensed by the said position-sensing meanS.
Claim 2
Dependent Claim
463 words
Apparatus for guiding a movable sheet of flexible material having lateral outer marginal edge portions and which is movable lengthwise along the longitudinal axis of the said sheet of flexible material relative to the said lateral outer marginal edge portions thereof, comprising: a. first supporting means for supporting the said movable sheet of flexible material for movement lengthwise of its said longitudinal axis; b. second supporting means or movably supporting the said first supporting means and the said sheet of flexible material supported thereby for movement in a direction generally transversely relative to the said longitudinal axis of the said sheet of flexible material; c. pneumatic position-sensing means arranged at a point along one of the said lateral outer marginal edge portions of the said movable sheet of flexible material for sensing lateral movement of the said sheet of flexible material in a direction generally transversely relative to the said longitudinal axis of the sheet of flexible material and in a direction toward or away from the said one lateral outer marginal edge portion of the said movable sheet of flexible material; d. power means for moving the said second supporting means and the said first supporting means and the said sheet of flexible material carried thereby in a direction generally transversely relative to the said longitudinal axis of the said sheet of flexible material; and e. pneumatically operated means under the control of the said position-sensing means for actuating the said power means including 1. first pneumatically operated means for actuating the said power means; and 2. second pneumatically operated means for actuating the said first pneumatically operated actuating means for the said power means; f. the said first pneumatically operated means for actuating the said power means including 1. a first pneumatic system for supplying air under pressure to the said power means including a) a pair of normally closed air flow control valves for selectively controlling the flow of air under pressure through said first pneumatic system to actuate the said first pneumatic system to actuate the said power means at different times in either of two opposite directions; and 2. a second pneumatic system under control of and responsive to the said position-sensing means for selectively controlling the operation of the said normally closed air flow control valves so as to selectively open the said normally closed air flow control valves and thereby actuate the said power means in a direction to move the said second supporting means and the said flexible sheet material carried thereby in a direction transversely relative to the longitudinal axis of the said flexible sheet material to correct the lateral misalignment of the said flexible sheet material to correct lateral misalignment of the said flexible sheet material as sensed by the said position-sensing meanS.
Claim 3
Dependent Claim
137 words
pneumatic position-sensing and control means arranged externally of the said portable housing and adapted to be positioned as a selected point along and adjacent to one of the said lateral outer marginal edge portions of the said sheet for sensing movement of the said sheet toward and away from its normal operating position and for controlling the operation of the said first penumatic system; the said pneumatic position-sensing and control means including a) control means for preventing the flow of air under pressure from the said position-sensing and control means through the said second air-conducting means in the second pneumatic system to the said air flow control valve means in the said first pneumatic system when the said sheet is in its normal and proper operating position as sensed by the said pneumatic position-sensing and control means.
Claim 4
Dependent Claim
137 words
pneumatic position-sensing and control means arranged externally of the said portable housing and adapted to be positioned as a selected point along and adjacent to one of the said lateral outer marginal edge portions of the said sheet for sensing movement of the said sheet toward and away from its normal operating position and for controlling the operation of the said first penumatic system; the said pneumatic position-sensing and control means including a) control means for preventing the flow of air under pressure from the said position-sensing and control means through the said second air-conducting means in the second pneumatic system to the said air flow control valve means in the said first pneumatic system when the said sheet is in its normal and proper operating position as sensed by the said pneumatic position-sensing and control means.
Claim 5
Dependent Claim
32 words
second pneumatically operated means for actuating the said first pneumatically operated actuating means for the said power means; f. the said first pneumatically operated means for actuating the said power means including
Claim 6
Dependent Claim
32 words
second pneumatically operated means for actuating the said first pneumatically operated actuating means for the said power means; f. the said first pneumatically operated means for actuating the said power means including
Claim 7
Dependent Claim
109 words
a second pneumatic system under control of and responsive to the said position-sensing means for selectively controlling the operation of the said normally closed air flow control valves so as to selectively open the said normally closed air flow control valves and thereby actuate the said power means in a direction to move the said second supporting means and the said flexible sheet material carried thereby in a direction transversely relative to the longitudinal axis of the said flexible sheet material to correct the lateral misalignment of the said flexible sheet material to correct lateral misalignment of the said flexible sheet material as sensed by the said position-sensing meanS.
Claim 8
Dependent Claim
109 words
a second pneumatic system under control of and responsive to the said position-sensing means for selectively controlling the operation of the said normally closed air flow control valves so as to selectively open the said normally closed air flow control valves and thereby actuate the said power means in a direction to move the said second supporting means and the said flexible sheet material carried thereby in a direction transversely relative to the longitudinal axis of the said flexible sheet material to correct the lateral misalignment of the said flexible sheet material to correct lateral misalignment of the said flexible sheet material as sensed by the said position-sensing meanS.
Claim 9
Dependent Claim
15 words
Apparatus as defined in claim 1 in which a. the said pneumatic position-sensing means includes
Claim 10
Dependent Claim
77 words
air flow control valve means in the said first air-conducting means in the said portable housing for controlling a supply of air under pressure to activate the said power means to move the said sheet-supporting means in a direction laterally relative to the said lateral outer marginal edge portions of the said sheet; e. a second pneumatic system for controlling the operation of the first pneumatic system and the said air flow control valve means therein including
Claim 11
Dependent Claim
77 words
air flow control valve means in the said first air-conducting means in the said portable housing for controlling a supply of air under pressure to activate the said power means to move the said sheet-supporting means in a direction laterally relative to the said lateral outer marginal edge portions of the said sheet; e. a second pneumatic system for controlling the operation of the first pneumatic system and the said air flow control valve means therein including
Claim 12
Dependent Claim
36 words
air flow control valve means in the said first air-conducting means; c. a second pneumatic system for controlling the operation of the said first pneumatic system and the said air flow control valve means therein including
Claim 13
Dependent Claim
36 words
air flow control valve means in the said first air-conducting means; c. a second pneumatic system for controlling the operation of the said first pneumatic system and the said air flow control valve means therein including
Claim 14
Dependent Claim
133 words
pneumatic position-sensing and control means arranged externally of the said portable housing and adapted to be positioned at a selected point along and adjacent to one of the said lateral outer marginal edge portions of the said sheet and responsive to lateral movement of the said sheet toward and away from its normal operating position for controlling the operation of the said first pneumatic system; the said pneumatic position-sensing and control means including a) control means for preventing the flow of air under pressure from the said position-sensing and control means through the said second pneumatic system to the said air flow control valve means in the said first pneumatic system when the said sheet is in its normal and proper operating position as sensed by the said pneumatic position-sensing and control means.
Claim 15
Dependent Claim
133 words
pneumatic position-sensing and control means arranged externally of the said portable housing and adapted to be positioned at a selected point along and adjacent to one of the said lateral outer marginal edge portions of the said sheet and responsive to lateral movement of the said sheet toward and away from its normal operating position for controlling the operation of the said first pneumatic system; the said pneumatic position-sensing and control means including a) control means for preventing the flow of air under pressure from the said position-sensing and control means through the said second pneumatic system to the said air flow control valve means in the said first pneumatic system when the said sheet is in its normal and proper operating position as sensed by the said pneumatic position-sensing and control means.
Claim 16
Dependent Claim
46 words
Apparatus as defined in claim 1 in which the said second pneumatic system includes a. manually operable air flow valve control means for selectively opening the said normally closed air flow control valves in the said first pneumatic system independently of the said pneumatic position-sensing means.
Claim 17
Dependent Claim
129 words
A web-guiding apparatus and position-sensing and control unit therefor for use with a roll of flexible sheet material adapted to be withdrawn from the said roll as a web having lateral outer marginal edge portions extending lengthwise of the longitudinal axis of the said web; comprising a. roll-supporting means for supporting a roll of said flexible sheet material to be unwound lengthwise therefrom as a web; b. mounting means for mounting the said roll-supporting means for movement transversely of the said web; c. power means for moving the said roll-supporting means and the said mounting means and the said roll of flexible sheet material laterally relative to the said lateral outer marginal edge portions of the said web; d. pneumatic operating means for operating the said power means; including
Claim 18
Dependent Claim
129 words
A web-guiding apparatus and position-sensing and control unit therefor for use with a roll of flexible sheet material adapted to be withdrawn from the said roll as a web having lateral outer marginal edge portions extending lengthwise of the longitudinal axis of the said web; comprising a. roll-supporting means for supporting a roll of said flexible sheet material to be unwound lengthwise therefrom as a web; b. mounting means for mounting the said roll-supporting means for movement transversely of the said web; c. power means for moving the said roll-supporting means and the said mounting means and the said roll of flexible sheet material laterally relative to the said lateral outer marginal edge portions of the said web; d. pneumatic operating means for operating the said power means; including
Claim 19
Dependent Claim
180 words
A web-guiding apparatus and a position-sensing and control unit therefor for use with a web of flexible sheet material adapted to be withdrawn therefrom lengthwise as a web having lateral outer marginal edge portions extending lengthwise of the longitudinal axis of the said web, comprising: a. a supporting frame; b. roll-supporting means for supporting a roll of said flexible sheet material on the said supporting frame; c. mounting means for movably mounting the said roll-supporting means for movement transversely of the said web; d. power means for moving the said supporting frame and the said roll-supporting means mounted thereon transversely relative to the said lateral outer marginal edge portions of the said web; e. a first pneumatic system for supplying air under pressure to actuate the said power means in a direction to cause the said power means to move the said mounting means and the said roll-supporting means mounted thereon in a direction laterally relative to the said lateral outer marginal edge portions of the said web and its said longitudinal axis; f. the said first pneumatic system including
Claim 20
Dependent Claim
180 words
A web-guiding apparatus and a position-sensing and control unit therefor for use with a web of flexible sheet material adapted to be withdrawn therefrom lengthwise as a web having lateral outer marginal edge portions extending lengthwise of the longitudinal axis of the said web, comprising: a. a supporting frame; b. roll-supporting means for supporting a roll of said flexible sheet material on the said supporting frame; c. mounting means for movably mounting the said roll-supporting means for movement transversely of the said web; d. power means for moving the said supporting frame and the said roll-supporting means mounted thereon transversely relative to the said lateral outer marginal edge portions of the said web; e. a first pneumatic system for supplying air under pressure to actuate the said power means in a direction to cause the said power means to move the said mounting means and the said roll-supporting means mounted thereon in a direction laterally relative to the said lateral outer marginal edge portions of the said web and its said longitudinal axis; f. the said first pneumatic system including
Claim 21
Dependent Claim
45 words
Apparatus as defined in claim 5 in which the said second pneumatic system includes a. manually operable means for controlling the operation of the said air flow control valve means in the said first pneumatic system independently of the said pneumatic position-sensing and control means.
Claim 22
Dependent Claim
40 words
Apparatus as defined in claim 5 which includes a. a portable housing; and in which components of the said first pneumatic system and of the said second pneumatic system are arranged in and are movable with the said portable housing.
Claim 23
Dependent Claim
23 words
Apparatus as defined in claim 7 in which the said pneumatic position-sensing and control means is disposed exteriorly of the said portable housing.
Claim 24
Dependent Claim
69 words
A sheet-guiding and position-sensing and control unit therefor for use with a sheet of flexible material having lateral outer marginal edge portions extending lengthwise of the longitudinal axis of the said sheet, comprising: a. sheet-supporting means; b. power means for moving the said sheet-supporting means laterally relative to the said lateral outer marginal edge portions of the said sheet; c. a portable housing; d. a first pneumatic system including
Claim 25
Dependent Claim
69 words
A sheet-guiding and position-sensing and control unit therefor for use with a sheet of flexible material having lateral outer marginal edge portions extending lengthwise of the longitudinal axis of the said sheet, comprising: a. sheet-supporting means; b. power means for moving the said sheet-supporting means laterally relative to the said lateral outer marginal edge portions of the said sheet; c. a portable housing; d. a first pneumatic system including
Claim 26
Dependent Claim
29 words
A sheet-guiding and position-sensing and control unit therefor as defined in claim 9 in which the said position-sensing and control means includes a. a position-sensing and control head having
Claim 27
Dependent Claim
60 words
A sheet-guiding and position-sensing and control unit therefor as defined in claim 10 which includes a. meaNs for adjustably mounting the said position-sensing and control head and the said flexible air-conducting means relative to the said portable housing at a preselected point along and relative to one of the said lateral and outer marginal edge portions of the said sheet.
Claim 28
Dependent Claim
60 words
A sheet-guiding and position-sensing and control unit therefor as defined in claim 9 in which the said second pneumatic system includes a. manually operable air flow valve control means for selectively operating the said air flow control valve means in the said first pneumatic system independently of the said pneumatic position-sensing and control means in the said first pneumatic system.
Claim 29
Dependent Claim
85 words
A portable sheet-guiding and position-sensing and control unit for use with a sheet of flexible material having lateral outer marginal edge portions extending lengthwise of the longitudinal axis of the said sheet and for use with sheet-supporting means for supporting the said sheet and power means for moving the said sheet-supporting means laterally relative to the said lateral outer marginal edge portions of the said sheet, said portable sheet-guiding and position-sensing and control unit comprising a. a portable housing; b. a first pneumatic system including
Claim 30
Dependent Claim
85 words
A portable sheet-guiding and position-sensing and control unit for use with a sheet of flexible material having lateral outer marginal edge portions extending lengthwise of the longitudinal axis of the said sheet and for use with sheet-supporting means for supporting the said sheet and power means for moving the said sheet-supporting means laterally relative to the said lateral outer marginal edge portions of the said sheet, said portable sheet-guiding and position-sensing and control unit comprising a. a portable housing; b. a first pneumatic system including
Claim 31
Dependent Claim
30 words
A portable sheet-guiding and position-sensing and control unit as defined in claim 13 in which the said position-sensing and control means includes a. a position sensing and control head having
Claim 32
Dependent Claim
60 words
A portable sheet-guiding and position-sensing and control unit as defined in claim 14 which includes a. means for adjustably mounting the said position-sensing and control head and the said flexible air-conducting means relative to the said portable housing at a preselected point along and relative to one of the said lateral and outer marginal edge portions of the said sheet.
Claim 33
Dependent Claim
60 words
A portable sheet-guiding and position-sensing and control unit as defined in claim 13 in which the said second pneumatic system includes a. manually operaBle air flow valve control means for selectively operating the said air flow control valve means in the said first pneumatic system independently of the said pneumatic position-sensing and control means in the said second pneumatic system.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |