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Publication numberUS754797 A
Publication typeGrant
Publication dateMar 15, 1904
Filing dateSep 24, 1903
Priority dateSep 24, 1903
Publication numberUS 754797 A, US 754797A, US-A-754797, US754797 A, US754797A
InventorsJoseph H Ostrander
Original AssigneeJoseph H Ostrander
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 754797 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

PATENTED MAR. 15,1904.






//v VENTOR Joae akflflafiander A HOME rs WITNESSES.

'No. 754,797. PATBNTBD MAR. 15, 1904.





WITNESSES: INVENTOI? :ZisqakJiOaZrancZer C@@Mm/ BY Mn m was PEYERS co; mowwma. wAsmum'on. n. c.

Patented March 15, 1904,




SPECIFICATION forming part of Letters Patent No. 754,797, dated March 15, 1904.

Application filed September 24, 1903. Serial No. 174,439. (No model.)

To all whom it may concern:

Be it known that I, J OSEPH H. OSTRANDER,

ton, or paper, and is especially adapted for paper-pulp and paper-machine felts, an object being to provide a spreader of novel construction that may be readily attached to a machine and which will effectually spread the papercarrying felt; and a further object is to make the device adjustable, whereby it is possible to prevent the felt or paper sheet from creasing or wrinkling while traveling over the spreader.

I will describe a felt-spreader embodying my invention, and then point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional elevation on the line a: x of Fig. 2 of a felt-spreader embodying my invention. Fig. 2 is a plan view thereof. Fig. 3 is an end elevation, and Fig. 4 is a section on the line 3 y of Fig. 2.

The spreader comprises a series of short rollers 1, mounted to rotate independently on a rod 2, longitudinally curved in the arc of a circle, the central projecting portion being forward or in the direction of the line of movement of the felt. The rod 2 is supported on a tube 3 by means of end arms 4:, acenter arm 5, and arms 5 between the arms 4=and 5. The ends of the tube 3 are made angular, as indicated at 6, to engage in correspondinglyshaped openings in brackets 7 movable vertically on standards 8 9, which may be supported in any suitable manner in the machineframe-for instance, on the sills thereof, as indicated in Fig. 1and as many spreaders may be employed as desired. The brackets 7 are prevented from turning by having web portions 10 engaging in channels 11, formed in the inner sides of the standards. The brackets are held from moving downward or releasing the tube 3 by means of latches 12, pivoted to swing on the brackets and engaging the upper sides of the angular portions of the tube. Itis to be understood that these brackets are mainly for the purpose of preventing a rotary movement of the tube and the consequent displacement of the spreader.

A shaft 13 extends through the tube 3, and on one end of this shaft is a pinion 1 1, engaging with a rack 15 on the standard 8, and a similar pinion 16 on the other end of the shaft engages with a rack 17 on the standard 9. Also on the shaft 13 is a worm-wheel 18, engaging with a worm 19, having a step-bearing 20 at its lower end and a bearing at its upper end in an arm 21, projected from the standard 8, and above this arm 21 the wormshank is provided with a hand-wheel 22.

In the operation the felt for the paper sheet or strip passes over the spreader, and the plurality of short rollers arranged in the segment of a circle, as is shown, operate to spread the felt laterally or from the center outward in both directions, keeping the same taut, or practically so, and thus preventing wrinkling. To secure the required tension on the felt, the spreader may be raised or lowered by manipulating the worm 19.

Having thus described my invention, I claim as new and desireto secure by Letters Patent- 1. A felt-spreader comprising a plurality of rollers, a curved rod on which the rollers are mounted to rotate independently one of another, and means for vertically adjusting said rod.

2. A felt-spreader comprising a plurality of rollers, a rod formed in the arc of acircleand on which the rollers are mounted, a tube, supporting connections between said tube and rod, standards, brackets movable vertically along said standards and having angular openings to receive correspondingly-shaped portions of the tube, a shaft extended through the-tube, pinions on said shaft, racks on the standards with which the pinions engage, and means for rotating'the shaft.

3. A felt-spreader comprising a plurality of short rollers, a longitudinallycurved rod on which the rollers are mounted to rotate, a supporting-tube for said rod, standards, brackets movable vertically along said standards and having angular openings to receive correspondingly-shaped portions of the tube, racks on said standards, a shaft extended through the tube, pinions on the shaft for engaging with said racks, a Worm-Wheel on the shaft, and a Worm engaging with the Worm- Wheel.

4:. A felt-spreader comprising a plurality of rollers arranged in the arc of a circle, a tubular support for the rollers, standards, brackets movable vertically along said standards and having angular openings to receive correspondinglyshaped portions of the tube, latches mounted to swing on the brackets for engaging the upper sides of the angular portions of the tube, and means for moving the tube with the brackets vertically along the standards.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing Witnesses. I




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3161563 *Sep 4, 1962Dec 15, 1964 Method and apparatus for the lateral stretching of webs, and resultant product
US3285487 *Jan 19, 1965Nov 15, 1966Huyck CorpSpreader bar having rollers thereon
US3498878 *May 29, 1968Mar 3, 1970Westvaco CorpMagnetic curl breaker
US3786975 *Jul 7, 1972Jan 22, 1974Jagenberg Werke AgApparatus for broad-drawing sheet materials
US5407417 *Apr 10, 1991Apr 18, 1995Goldstein; FredricRibbon curling device
US6723032 *Sep 20, 2001Apr 20, 2004Metso Paper, Inc.Segmented roll
US7384586Mar 23, 2004Jun 10, 20083M Innovative Properties CompanyMethod for flexing a web
US7399173Mar 23, 2004Jul 15, 20083M Innovative Properties CompanyApparatus for flexing a web
US7753669May 1, 2008Jul 13, 20103M Innovative Properties CompanySystem for flexing a web
US7998534Sep 26, 2007Aug 16, 20113M Innovative Properties CompanySystem and method for controlling curl in multi-layer webs
US8647556Sep 26, 2007Feb 11, 20143M Innovative Properties CompanySystem and method for controlling curl in multi-layer webs
US8871298Feb 7, 2007Oct 28, 20143M Innovative Properties CompanyMethod for manufacturing on a film substrate at a temperature above its glass transition
Cooperative ClassificationD06C3/067