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Publication numberUS3650043 A
Publication typeGrant
Publication dateMar 21, 1972
Filing dateApr 3, 1970
Priority dateApr 3, 1970
Also published asCA925120A1, DE2116283A1
Publication numberUS 3650043 A, US 3650043A, US-A-3650043, US3650043 A, US3650043A
InventorsWm F Overly, Kenneth J Pagel
Original AssigneeOverly Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Web stabilizer
US 3650043 A
Abstract
An air foil web stabilizer is constructed with its opposite ends disposed generally at a slight angle to provide a lateral component to the air discharge in the general direction of web movement to thereby remove wrinkles from the web.
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Description  (OCR text may contain errors)

United States Patent Overly et al.

[451 Mar. 21, 1972 [54] WEB STABILIZER [72] Inventors: Wm. F. Overly, Minneconne; Kenneth J.

Page], Neenah, both of Wis.

[73] Assignee: Overly, Inc., Neenah, Wis.

[22] Filed: Apr. 3, 1970 [21] Appl. No.: 25,505

[52] US. Cl ..34/l56, 34/160, 226/97 [51] Int. Cl ..F26b 13/00 {58] Field of Search ..34/160, 156; 226/97 [56] References Cited UNITED STATES PATENTS 1,140,873 5/191 5 Carter.... .I.... 3 4 1 0 2,402,545 6/1946 Frum ..34/l60 X FOREIGN PATENTS OR APPLICATIONS 323,192 7/1902 France ....34/l60 1,05 8,200 2/1967 Great Britain ..34/23 Primary ExaminerCarroll B. Dority, Jr. Attorney-Andrus, Sceales, Starke & Sawall [57] ABSTRACT An air foil web stabilizer is constructed with its opposite ends disposed generally at a slight angle to provide a lateral component to the air discharge in the general direction of web movement to thereby remove wrinkles from the web.

6 Claims, 5 Drawing Figures PATENTEDMARZI m2 3.650.043

INVENTORS WM. F OVERLY BY KENNETH J. PAGEL dttorneys WEB STABILIZER This invention utilizes an air foil web stabilizer of the general type illustrated in application Ser. No. 817,834, filed Apr. 21, 1969 by the present inventors and which has now become US. Pat. No. 3,587,177 issued June 28,1971.

BACKGROUND OF THE INVENTION The present invention provides an effective wrinkle remover usable without direct contact with the web, wherever there is any tendency for a moving web to wrinkle. In fact the device of the present invention may be employed wherever it is desired to prevent wrinkling of a moving web, as well as for removing wrinkles from a web.

One of the problems encountered in paper mills lies in the tendency of the web to wrinkle following its passage through the sizing press.

Heretofore, it has been the practice to employ a bowed roll to remove the wrinkles from the paper web as it comes from the sizing press.

Similar problems of wrinkling of webs arise at other stages of paper making and also in the printing and even in textile making and usage.

SUMMARY OF THE INVENTION According to the present invention an air foil web stabilizer, which as previously constructed and employed extended straight across the web normal to the direction of web movement and with its discharge of air in either the direction of or against web movement, is constructed with its opposite end portions disposed at a slight trailer angle to give the air discharging forwardly therefrom a lateral component which tends to stress or stretch the web laterally and progressively as it moves forwardly.

The present invention eliminates the need for a bowed roll.

BRIEF DESCRIPTION OF THE DRAWING The accompanying drawing illustrates the best mode presently contemplated by the inventor for carrying out the invention.

In the drawings:

FIG. 1 is a plan view illustrating employment of the invention in a part of a paper machine;

FIG. 2 is a side elevation of the apparatus illustrated in FIG. 1 with parts broken away and sectioned;

FIG. 3 is a detail section of the air foil construction taken on line 3-3 of FIG. 1;

FIG. 4 illustrates a variation in construction of the stabilizer; and

FIG. 5 illustrates another variation in the stabilizer construction.

DESCRIPTION OF THE PREFERRED EMBODIMENT The invention is illustrated as applied to a web of paper 1 leaving the sizing press turning roll 2 and passing over a second roll 3 in its course through a paper machine. Notice that numerous wrinkles or waves 4 appear in the web 1 as it leaves the turning roll 2.

In applying the invention an air foil stabilizer 5 is disposed transversely above the web and a second air foil stabilizer 6 is disposed transversely below the web as shown in Flg. l.

The air foil stabilizers 5 and 6 are of the construction generally illustrated and described in application Ser. No. 817,834, referred to above.

As illustrated in the drawing, each stabilizer 5 and 6 comthe trailing side of the chamber 7 'ust behind the curved air for] surface. The air follows the an oil surface 10 forwardly in between the plenum chamber 7 and the web 1 in the general direction of movement of the web as indicated by the arrows in FIGS. 1 and 2.

In carrying out the present invention, the plenum chamber 7, instead of being straight from end to end, has its opposite end portions angled approximately from 5l0 from the center line 12 in a trailing direction relative to the direction of movement of the web.

As illustrated, the angular end portions of the plenum chamber 7 extend straight from each corresponding end to near the center where the supply pipe 9 connects with the plenum chamber and the plenum chamber points either in the direction of web movement or opposite thereto.

Note in FIG. 1 that the wrinkles or waves 4 in the web 1 disappear as the web leaves the region of the stabilizers 5 and 6.

The exact angle employed for the end portions of the plenum chamber may vary as shown in F IG. 4 where end portions 13 are disposed at a greater angle and are generally shorter, leaving a central portion 14 that is parallel to the center line normal to the direction of web movement.

A more expensive construction is illustrated in FIG. 5, where the plenum chamber 15 is curved from end to end with the ends gradually trailing from the center and simulating the effect of the earlier described angular constructions.

Various modes of carrying out the invention are contemplated as being within the scope of the following claims particularly pointing out and distinctly claiming the subject matter which is regarded as the invention.

We claim:

1. An air foil web stabilizer comprising a generally tubular plenum chamber extending transversely of a moving web with a longitudinally extending air discharge slot directed toward the web and an air foil surface including a curved portion to which said slot discharge is generally tangential and a substantially flat portion merging therewith and disposed generally in a plane parallel to and adjacent the web for controlling the flow of air along the surface of the web in the general direction parallel to web movement, characterized by having the end portions of the stabilizer angularly offset in a trailing direction of air flow in the general plane of the web to provide a lateral component of air direction generally stressing the web transversely thereof to avoid wrinkles in the web.

2. The construction of claim 1 in which the end portions of the stabilizer trail the center thereof in relation to the direction of movement of the web to provide an air flow in the general direction of web movement.

3. The construction of claim 1 employing two similar web stabilizers disposed on opposite sides of the web.

4. The construction of claim 1 in which the angularly disposed end portions of the stabilizer extend straight from the center to the corresponding opposite ends at an angle of approximately from 5-l0 from the longitudinal center line of the stabilizer.

5. The construction of claim 1 in which a central portion of the stabilizer extends normal to the direction of web movement and the end portions are disposed at a substantial angle therefrom.

6. The construction of claim 1 in which the stabilizer is generally curved from end to end in the general plane of the web.

Patent Citations
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US1140873 *May 25, 1915Winthrop L CarterMachine and method for waxing paper.
US2402545 *Jan 29, 1944Jun 25, 1946Nat Steel CorpApparatus for drying striplike material
FR323192A * Title not available
GB1058200A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3861062 *Jun 15, 1972Jan 21, 1975Rueti Ag MaschfArrangement for drying a fabric
US4014487 *Mar 31, 1976Mar 29, 1977Crown Zellerbach CorporationWeb threading system
US4186860 *Oct 16, 1978Feb 5, 1980Crown Zellerbach CorporationWeb threading system
US4247993 *Aug 14, 1978Feb 3, 1981Valmet OyNozzle apparatus for airborne paper web dryers
US4322026 *Apr 14, 1980Mar 30, 1982Young Engineering, Inc.Method and apparatus for controlling a moving web
US4680873 *Feb 11, 1985Jul 21, 1987Flakt AbMethod for controlling shrinkage and/or stretching of a paper web in the drying section of paper machine, in the form of a cylinder drier and/or fan dryer, transversely to the feed direction of the web and arrangements for carrying out the method
US5184555 *Sep 13, 1991Feb 9, 1993Quad/Tech, Inc.Apparatus for reducing chill roll condensation
US5347726 *Dec 29, 1992Sep 20, 1994Quad/Tech Inc.Method for reducing chill roll condensation
US5430580 *Aug 17, 1993Jul 4, 1995Eastman Kodak CompanyPneumatic edge clamp and magnetic bias array for anhysteretic recording
US5466298 *Oct 1, 1993Nov 14, 1995James River Paper Company, Inc.Web cleaning method
US5496406 *Aug 5, 1994Mar 5, 1996J. M. Voith GmbhCoating device having infrared and suspension drying sections
US5577294 *Jul 25, 1995Nov 26, 1996James River Paper Company, Inc.Web cleaner apparatus and method
US5590480 *Mar 29, 1995Jan 7, 1997W. R. Grace & Co.-Conn.combination air bar and hole bar flotation dryer
US5647144 *Nov 13, 1995Jul 15, 1997W.R. Grace & Co.-Conn.Combination air bar and hole bar flotation dryer
US5738760 *Aug 9, 1996Apr 14, 1998Valmet-Karlstad AbMethod of and a device for transferring running dried web from one device to a subsequent device
US5745244 *Aug 9, 1996Apr 28, 1998Valmet-Karlstad AbScanning device for scanning a physical property of a fibrous web
US5970627 *Dec 11, 1997Oct 26, 1999Thermo Wisconsin, Inc.Active web stabilization apparatus
US5979731 *Oct 29, 1997Nov 9, 1999Eastman Kodak CompanyMethod and apparatus for preventing creases in thin webs
US5991964 *Jun 22, 1998Nov 30, 1999Kimberly-Clark Worldwide, Inc.Web cleaner
US6074531 *Mar 11, 1998Jun 13, 2000Valmet-Karlstad AbDevice in a measuring station
US6193810Nov 30, 1999Feb 27, 2001Kimberly-Clark Worldwide, Inc.Web cleaning method
US6325896Sep 23, 1999Dec 4, 2001Valmet-Karlstad AbApparatus for transferring a fast running fibrous web from a first location to a second location
US6328852Jul 13, 2000Dec 11, 2001Kimberly-Clark Worldwide, Inc.Method and apparatus for improving stability of moving webs
US8584584Feb 23, 2006Nov 19, 2013Goss International Americas, Inc.Noncontact web stabilizer
USRE39601 *Apr 14, 2000May 1, 2007Metso Paper Karlstad AbProviding a substantially web-wide surface having an upstream end and a shape conforming to at least a portion of that of the predetermined run, creating a flow of air in the direction of the web run by supplying pressurized air
EP0507218A1 *Mar 27, 1992Oct 7, 1992J.M. Voith GmbHDryer section
WO1985003534A1 *Feb 11, 1985Aug 15, 1985Flaekt AbA method for controlling shrinkage and/or stretching of a paper web in the drying section of a paper machine, in the form of a cylinder drier and/or fan dryer, transversely to the feed direction of the web; and arrangements for carrying out the method
WO1999029603A1 *Dec 4, 1998Jun 17, 1999Thermo Wisconsin IncActive web stabilization apparatus
WO2001014233A1 *Aug 23, 2000Mar 1, 2001Kimberly Clark CoMethod and apparatus for improving stability of moving webs
WO2007100452A2 *Feb 7, 2007Sep 7, 2007Goss Int Americas IncNoncontact web stabilizer
Classifications
U.S. Classification34/643, 226/196.1, 26/98, 26/87, 242/615.11
International ClassificationD21F1/36, D06C3/00, B65H23/24
Cooperative ClassificationD06C3/00, D06C2700/10, D21F1/365, B65H23/24
European ClassificationD06C3/00, D21F1/36B, B65H23/24