US3813019A - Web stabilizing device - Google Patents
Web stabilizing device Download PDFInfo
- Publication number
- US3813019A US3813019A US00287528A US28752872A US3813019A US 3813019 A US3813019 A US 3813019A US 00287528 A US00287528 A US 00287528A US 28752872 A US28752872 A US 28752872A US 3813019 A US3813019 A US 3813019A
- Authority
- US
- United States
- Prior art keywords
- web
- path
- plate
- stabilizer
- slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/34—Apparatus for taking-out curl from webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
Definitions
- ABSTRACT Means is provided for eliminating web flutter which is associated with the conveyance of a free web at high speeds.
- Themeans comprises a plate which is spaced relative to the web forming an acute angle therewith.
- the presence of the plate causes the air carried by the web to be collected in a small region thereby eliminating the turbulence associated with the free movement of the web.
- FIG. 3 shows in detailthe location of a stabilizing de SUMMARY OF THE INVENTION
- a web conveyor such as a paper dryer, is shown generally at It and has a plurality of horizontally extending, evenly staggered dryer drums or rolls I2, and a plurality of upper and lower felt rolls M.
- a web supporting synthetic fabric 16 is conveyed about the upper rolls l4 and another fabric is conveyed on the lower rolls.
- a web 18, such as a paper web is conveyed about the felt rolls 14 and intermediate the dryer rolls l2 and the web supporting fabric I6.
- Each stabilizer comprises a cylindrical section 22 having an open end 24 and a closed end 26, and a plate having one end joining, as the drawing shows, approximately tangentially with section 22
- the generally cylindrical wall of the stabilizer is extended as a lip 28 spaced in outward radial relation with that end of the plate 30 which 30 joins with the cylindrical section to form a longitudiedge of the web and in a position adjacent to the web will eliminate the flutter normally associated therewith nally extending opening or slot 32.
- Air supply means 34 is provided for supplying air under pressure into the open end of the stabilizer which air supply means may be variable.
- the stabilizer 20 is positioned intermediately of a pair of rolls 12 in adjacent relationship along the path of the web l8, and in offset relation to such path, so that the plate 30, as it extends away from the section 20, converges with a portion of the web path extending in the direction of movement of the web (see arrows of FIGS. 2 and 3) to form an acute angle with the path and to define a converging region therebetween which terminates in a slot-like gap 35 between the distal end of the plate and the web during operation.
- the slot is aligned in this position of the stabilizer to discharge air toward the converging end of the region between the plate and the web path.
- this stabilizer 20 causes the air being carried by the web 18 to collect at the apex formed between the plate 30 and the web 18. As this air builds up within the apex, it forms an associated pressure therewith which forces the web 18 away from the stabilizer 20. As the air escapes from the portion between the web 18 and the plate 30, the pressure will be reduced substantially thereby causing the air carried by the web to lose its fluttering effect.
- the width of the web 18 will usually vary from approximately to 280 inches. It has been found that a stabilizer having an 18 inch length and spaced relative to each edge of the web is sufficiently large to'accomplish the function of eliminating web flutter. Although it is preferable to position stabilizers 26 only along the opposite edges of the web 18, if preferred, a single stabilizer extending the entire width'of the web 18 may be used.
- Apparatus for conveying fragile webs comprising:
- said cylindrical section being generally enclosed except for said slot and an opening adapting it to connect with air supply means;
- said stabilizer being positioned relative to said path so that the plate, as it extends away from said cylindrical section, converges with a portion of said path extending in the direction of movement of the web to form an acute angle with the path and to define a converging region therebetween terminating in a slot-like gap between the distal end of the plate and the web during operation, said slot being aligned by said positioning of the stabilizer to discharge air toward the converging end of said region.
- the apparatus of claim 1 comprising: a plurality of said stabilizers of less width than said web and located adjacent opposite edges of the web.
Landscapes
- Paper (AREA)
Abstract
Description
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA147,773A CA979936A (en) | 1972-07-24 | 1972-07-24 | Web stabilizing device |
Publications (1)
Publication Number | Publication Date |
---|---|
US3813019A true US3813019A (en) | 1974-05-28 |
Family
ID=4093912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00287528A Expired - Lifetime US3813019A (en) | 1972-07-24 | 1972-09-08 | Web stabilizing device |
Country Status (2)
Country | Link |
---|---|
US (1) | US3813019A (en) |
CA (1) | CA979936A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4179330A (en) * | 1978-09-05 | 1979-12-18 | Page Robert E | Apparatus for handling web material, and method |
US4321107A (en) * | 1978-09-05 | 1982-03-23 | Beloit Corporation | Method of suppressing paper web flutter |
FR2519298A1 (en) * | 1981-12-31 | 1983-07-08 | Roland Man Druckmasch | DEVICE FOR GUIDING THE PRINTING MEDIA BELT BETWEEN TWO PRINTER GROUPS FOR OFFSET ROTATORS |
EP0313806A1 (en) * | 1987-10-28 | 1989-05-03 | Hilmar Vits | Process and apparatus for stabilizing the flatter of edges of free moving webs guided over cylinders |
US5967457A (en) * | 1996-07-23 | 1999-10-19 | Thermo Wisconsin, Inc. | Airfoil web stabilization and turning apparatus and method |
RU2634001C2 (en) * | 2015-01-30 | 2017-10-23 | Райфенхойзер Гмбх Унд Ко. Кг Машиненфабрик | Method of nonwoven fabric guiding and guiding device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3066882A (en) * | 1960-03-21 | 1962-12-04 | Dow Chemical Co | Roll starting method and mechanism for a rewinder |
US3227017A (en) * | 1962-06-18 | 1966-01-04 | Phillips Petroleum Co | Transporting film |
US3273775A (en) * | 1964-12-02 | 1966-09-20 | Hercules Inc | Apparatus for feeding thin film to cutting knives |
US3419203A (en) * | 1967-03-20 | 1968-12-31 | Beloit Corp | High speed paper making machine |
GB1176027A (en) * | 1966-04-26 | 1970-01-01 | Ucb Sa | A Device for Improving the Transport of Wrapping Materials in Wrapping Machines. |
-
1972
- 1972-07-24 CA CA147,773A patent/CA979936A/en not_active Expired
- 1972-09-08 US US00287528A patent/US3813019A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3066882A (en) * | 1960-03-21 | 1962-12-04 | Dow Chemical Co | Roll starting method and mechanism for a rewinder |
US3227017A (en) * | 1962-06-18 | 1966-01-04 | Phillips Petroleum Co | Transporting film |
US3273775A (en) * | 1964-12-02 | 1966-09-20 | Hercules Inc | Apparatus for feeding thin film to cutting knives |
GB1176027A (en) * | 1966-04-26 | 1970-01-01 | Ucb Sa | A Device for Improving the Transport of Wrapping Materials in Wrapping Machines. |
US3419203A (en) * | 1967-03-20 | 1968-12-31 | Beloit Corp | High speed paper making machine |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4179330A (en) * | 1978-09-05 | 1979-12-18 | Page Robert E | Apparatus for handling web material, and method |
US4321107A (en) * | 1978-09-05 | 1982-03-23 | Beloit Corporation | Method of suppressing paper web flutter |
FR2519298A1 (en) * | 1981-12-31 | 1983-07-08 | Roland Man Druckmasch | DEVICE FOR GUIDING THE PRINTING MEDIA BELT BETWEEN TWO PRINTER GROUPS FOR OFFSET ROTATORS |
EP0313806A1 (en) * | 1987-10-28 | 1989-05-03 | Hilmar Vits | Process and apparatus for stabilizing the flatter of edges of free moving webs guided over cylinders |
US5967457A (en) * | 1996-07-23 | 1999-10-19 | Thermo Wisconsin, Inc. | Airfoil web stabilization and turning apparatus and method |
RU2634001C2 (en) * | 2015-01-30 | 2017-10-23 | Райфенхойзер Гмбх Унд Ко. Кг Машиненфабрик | Method of nonwoven fabric guiding and guiding device |
Also Published As
Publication number | Publication date |
---|---|
CA979936A (en) | 1975-12-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HERCULES INCORPORATED HERCULES PLAZA WILMINGTON, D Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MIDLAND-ROSS CORPORATION;REEL/FRAME:004343/0610 Effective date: 19841204 |
|
AS | Assignment |
Owner name: ROSS PULP & PAPER, INC. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HERCULES INCORPORATED;REEL/FRAME:005208/0364 Effective date: 19871203 |
|
AS | Assignment |
Owner name: ROSS PULP & PAPER, INC., Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HERCULES INCORPORATED;REEL/FRAME:005150/0306 Effective date: 19871207 Owner name: HERCULES INCORPORATED, DELAWARE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MIDLAND-ROSS CORPORATION;REEL/FRAME:005178/0217 Effective date: 19841204 Owner name: FLAKT ROSS INC. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ROSS PULP & PAPER, INC.;REEL/FRAME:005164/0534 Effective date: 19871203 |