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Publication numberUS1536533 A
Publication typeGrant
Publication dateMay 5, 1925
Filing dateApr 1, 1924
Priority dateApr 1, 1924
Publication numberUS 1536533 A, US 1536533A, US-A-1536533, US1536533 A, US1536533A
InventorsSheehan William E
Original AssigneeSheehan William E
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Wet-web carrier for pulp and paper machines
US 1536533 A
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Description  (OCR text may contain errors)

May 5, 1925.

E. SHEEHAN WET WEB CARRIER -FOR PULP AND PAPER MACHINES Filed April 1, 1924 ss PR ffl) I N VEN TOR.

TTORNEY.

Patented May 5, 1925.

UNITED STATES PATENT OFFICE.

WILLIAM E. SHEEHAN, vF ALBANY, NEI/i7 YORK.

WET-WEB CARRIER FOR PULP AND PAPER. MACHINES.

Application filed April 1,

, Carriers for Pul and Paper Machines, of

which the following is a specification.

My present invention relates to web picking and web carrying means for all kinds of papel-making machines, or other ma- Mchinos which are designed to handle plastic pulp in a web or sheet.

The objectof this invention is to provide web picking and web supporting and carrying'means which will withstand greater strains, and wear longer, than will the usual papermakers felts now utilized forl such purposes. In the accomplishment of my object I make use of a strong, resilient, cushioning base provided with a covering of woven fabric, "preferably of wool, or with a plurality of wool yarns laid on the base in anydesired attern.

Myl improved we -picking' and web-carrying means is illustrated by the accompanying drawings, in which:

Fig. ,l is a diaI am of. a pulp or paper machine equippe in accordance with this invention; Fig. 2 is a plan view of a portion of one of my improved web-carrying means; Fig. 3 is a cross-section of the same; Fig. 4 is a plan and Fig. 5 is a crosssection of one form of my invention.

The same reference characters refer to the same parts throughout the views.

Referring to the drawings, B represents the cushioning base which may be of any suitable resilient material, such as rubber.

This base may be either solid or perforated, and either plain or reinforced, as for instance by having a suitable fabric incororated therein. To the lto vof the cushioning base B, is laid, an strongly at tached thereto, a covering C of woven fabric or of awplurality of yarns laid in any desired pattern, as for exam le, the yarns c, c, laid side hy side lengthwise of the base as illustrated in Figs. 2 and 3. This covering may be secured to the base in any suitable manner, as for example, by the use of a strong adhesive, or bybeing rolled or otherwise pressed into the surface of the rubber while it is in a plastic state.

My invention is intended to supersede the use of all kinds of woven felts such as are 1924. Serial No. 703,368.

now used in the manufacture of pulp and paperfor the purpose of handling the web of pulp while in almoist state, and which are known in the artas paper makers feite. My

invention is adaptable to all uses to which such felts are put-from the initial removal of the web of wet'pulp from the web form* ing device, t'o `its delivery tothe dryers.

When my improved web-carrier to be used for initially removing the web ef pulp from the web forming cylinder of a cylinder machine, or for carrying the plastic web from the web forming wire of a Fourdrinier machine, to and through the press rolls, the cushioning base is to be perforated for the purpose of permitting the free escape of.

water from the web when it is acted upon by those rolls. The covering which is laid on and attached to this cushioning base (which is to take the place of the usual drainage felt) will be composed of a plurality of smoothly laid yarn, or a smoothly woven and laid fabric. Thesurface of either type of covering being given a surface finish which will produce the desired finish on the web being produced.

When my improved web carrier is to be used in Vplace of what is known as a pick up felt, one purpose of which is to pick the web of jmoist pulp olf of the drainage felt and delivervit through the press rolls to the dryers, the cushioning base will be without perforations and the covering will be composed of a plurality of smoothly laid yarns, or a smoothly woven and laid fabric, in

. either case the surface will not be napped.

While I now prefer to make use of a covering composed of a plurality of individual yarns, a woven fabric may he substituted on either the solid or the perforated cushion base; the finish given the working face of the fabric depending on the class of service for which it is to be used.

A web picker, Aor a drainage type of web carrier, constructed in accordance with my invention is comparatively inexpensive to manufacture, and will withstand wear for a much longer period than will the usualA papermakers vfelt designed for the same service. Making use as I do of a cushioning base which lends itself to easy reinforcement, it is a simple matter to so construct my improved web carrier that it will withstand lnore than the usual strain to which it will be sub'ected in the service -for which it is designe and I am thus enabled to greatly reduce the cost by reducing the amount of Wool which is normally required to produce the usual wet web carrier or papermakers felt. l t Perhaps the greatest advantage of my irnproved Wet web carriers lies in the fact that .they are free from virtually all of the defe'cts which are inherent in the usual papermakers felts used for the same purposes.

prevent any appreciable' change in therelative positions of the yarns forming the 4 covering, or any appreciable change in the porosity or available drainage through the carrier. In the usual felt carriers a change in the relative positions of the yarn forming the fabric, such as takes place when such a carrier does not run true, will change the effective porosity of the carrier.

I claim:

` 1'. In pulp and paper machines the com.- bination of a web forming device, press rolls, and conveying means adapted to conresilient'materiah' such as rubber, having a covering of yarns attached to the surface thereof.

2. In pulp and paper machines the combination of a web forming, device, press rolls, and conveying means adapted to convey the Wet web of pulp from the "web forming dc- 'vice to and between the press rolls said means including a perforated endless base of a resilient material, such as rubber, having a covering of yarns attached to the surface thereof.

3. A Wet web carrier for use in p'ulp and paper machines, comprising an endless base of resilient material, such as rubber, with a covering of yarns securely attached to the surface thereof.

4. A Wet Web carrier for use in pulp and paper machines, comprising a perforated endless base of'a resilient material, such as rubber, with a covering of yarns securely attached to the surface thereof.

5. A Wet Web carrier for use in pulp and paper machines, comprising a lperforated endless base of a resilient material such as rubber with a Woven fabric securely attached to the surface thereof. l

In testimony whereof I have affixed my signature.

' WILLIAM E. SHEEHAN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2428097 *Dec 23, 1941Sep 30, 1947Asten Hill Mfg CoDrier felt seam securing strip and seam formed therewith
US3093535 *Jul 14, 1958Jun 11, 1963Stiftelsen Pappersbrukens ForsMethod of dewatering pulp webs
US3399111 *Dec 1, 1966Aug 27, 1968Huyck CorpSupplemental belt in combination with an endless belt in papermaking and method of installing the supplemental belt
US4271222 *Feb 4, 1980Jun 2, 1981Albany International Corp.Papermakers felt and method of manufacture
US5175037 *May 1, 1990Dec 29, 1992Thomas Josef Heimbach Gmbh & Co.Belt for papermaking machines
US5234551 *Dec 2, 1991Aug 10, 1993Dutt William HExtended nip press belt having an interwoven base fabric and an impervious impregnant
US5238537 *Dec 2, 1991Aug 24, 1993Dutt William HExtended nip press belt having an interwoven base fabric and an impervious impregnant
US5277728 *Apr 1, 1992Jan 11, 1994Albany International Corp.Curing the laminated polymeric resin, surface griding
US5477891 *Jul 8, 1994Dec 26, 1995Benesi; Steve C.Woven filter fabric
US5569358 *Jun 1, 1994Oct 29, 1996James River Corporation Of VirginiaImprinting felt and method of using the same
US5591305 *Mar 31, 1995Jan 7, 1997The James River Corporation Of VirginiaImprinting felt and method of using the same
US5615713 *Sep 29, 1995Apr 1, 1997Benesi; Steve C.Method for weaving a filter fabric belt for pressure filter apparatus
US5705446 *Jun 14, 1994Jan 6, 1998Mitsuboshi Belting Ltd.Wide endless belt
US6436240 *Jun 10, 1998Aug 20, 2002Voith Fabrics Heidenheim Gmbh & Co. KgPapermachine clothing
US6461474Jul 11, 2000Oct 8, 2002Kimberly-Clark Worldwide, Inc.Process for producing high-bulk tissue webs using nonwoven substrates
US6576090 *Oct 24, 2000Jun 10, 2003The Procter & Gamble CompanyDeflection member having suspended portions and process for making same
US6576091Oct 24, 2000Jun 10, 2003The Procter & Gamble CompanyMulti-layer deflection member and process for making same
US6616812 *Sep 27, 2001Sep 9, 2003Voith Paper Patent GmbhAnti-rewet felt for use in a papermaking machine
US6660129Oct 24, 2000Dec 9, 2003The Procter & Gamble CompanyMaking strong, soft, absorbent fibrous webs, paper webs
US6743571Oct 24, 2000Jun 1, 2004The Procter & Gamble CompanyMaking strong, soft, absorbent fibrous webs, such as, for example, paper webs.
US6913859Dec 15, 2003Jul 5, 2005The Proctor & Gamble CompanyMask for differential curing and process for making same
US7118647Jul 10, 2003Oct 10, 2006The Procter & Gamble CompanyProcess for producing a fibrous structure having increased surface area
US7799411Oct 26, 2007Sep 21, 2010The Procter & Gamble CompanyAbsorbent paper product having non-embossed surface features
US7914649Oct 26, 2007Mar 29, 2011The Procter & Gamble CompanyPapermaking belt for making multi-elevation paper structures
US8202605Aug 10, 2010Jun 19, 2012The Procter & Gamble CompanyAbsorbent paper product having non-embossed surface features
US8535484 *Jan 21, 2011Sep 17, 2013Albany International Corp.Ultra-resilient fabric and method of making thereof
US20120189806 *Jan 21, 2011Jul 26, 2012Albany International Corp.Ultra-resilient fabric and method of making thereof
DE1277658B *Jan 12, 1962Sep 12, 1968Plate & SuterSieb fuer Papiermaschinen
DE3231039A1 *Aug 20, 1982Mar 24, 1983Albany Int CorpBiegsames band fuer eine presse zum entwaessern einer faserstoffbahn
DE3231039C3 *Aug 20, 1982Mar 26, 1998Albany International Corp N DBiegsames Band für eine Presse zum Entwässern einer Faserstoffbahn
DE3235468A1 *Sep 24, 1982May 5, 1983Albany Int CorpBiegsames band fuer eine presse zum entwaessern einer faserstoffbahn und verfahren zu seiner herstellung
EP0196045A2 *Mar 24, 1986Oct 1, 1986Albany International Corp.Wet press papermakers felt and method of fabrication
EP0630739A1 *Jun 20, 1994Dec 28, 1994Mitsuboshi Belting Ltd.Wide endless belt
Classifications
U.S. Classification162/358.2, 139/383.00A
International ClassificationD21F1/00
Cooperative ClassificationD21F1/0036
European ClassificationD21F1/00E2