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Publication numberUS2660429 A
Publication typeGrant
Publication dateNov 24, 1953
Filing dateJun 4, 1951
Priority dateJun 4, 1951
Publication numberUS 2660429 A, US 2660429A, US-A-2660429, US2660429 A, US2660429A
InventorsLorig Edwin T
Original AssigneeUnited States Steel Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for automatically centering moving objects
US 2660429 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Nov. 24, 1953 T. 1.0m@ 2,660,429


, APPARATUS FOR AUTOMATICALLY CENTERING MOVING OBJECTS Edwin T. Lorig, Pittsburgh, Pa., assignor to United States Steel Corporation, a corporation of New Jersey Application June 4, 1951, Serial No. 229,723

9 Claims. (C1. 271-26) This invention relates to apparatus for automatically centering la moving object such as a strip and is a continuation-impart of my copending application, Serial No. 145,648, led February 23, 1950, now Patent No. 2,593,158, The apparatus disclosed in said patent has proved to be entirely satisfactory for most purposes, but there are certain applications where centering action faster than that obtained by that apparatus is required.

It is therefore an object of my invention to provide apparatus for automatically and rapidly centering a moving object.

This and other objects will be more apparent after referring to the following specification and attached drawings, in which:

Figure 1 is a sectional view of one embodiment of my invention;

Figure 2 is a sectional view, similar to Figure 1, but showing a load being applied to the device;

Figures 3 and 4 are fragmentary views showing slight modifications of my device; and

Figure 5 is a sectional view, similar to Figure 1 showing a further embodiment of my invention.

Referring more particularly to the drawings the reference numeral 2 indicates a rotatable 'shaft mounted in bearings 4. The shaft 2 may be either idle or driven, in which latter case an extension 6 is provided at one end for connection to a driving mechanism (not-shown). A pair of opposed frusto-conical rolls 8 are mounted on the shaft with their large diameter ends adjacent each other. Each of the rolls 8 consists of a tube IIJ surrounding the shaft 2 and fastened thereto adjacent the bearing 4 by means of an end ring I2. The internal diameter of the tube I8 is greater than the outside diameter of the shaft 2 so that its unsupported end is free to deflect under load. A thin end web I4 is fastened to the tube I0 adjacent its outer or supported end and a similar web I6 fastened to the tube I0 adjacent its inner or free end. A frusto-conical rim portion I8 is fastened to the spaced apart Webs I4 and I6. The web I6 may be positioned on the tube Ill at any point between the position shown and the web I4. While both webs are shown fastened to both the tube I0 and rim portion I8, part of these connections may be omitted, it only being necessary that the rim portion I8 be Vcentered on the tube I0 and rotate therewith. When pressure is applied to the surface of the rolls 8 by means of a strip S the rotating rims I8 and tubes I0 move inwardly toward the shaft 2 at the line or surface of contact and outwardly at a point diametrically opposite as shown in Figure 2. The

strip S may have either line contact with the rims I8 or be wrapped around an arc thereof. As long as the strip S is centered on the rolls 8 and the bearing pressure of the strip on the rolls is uniform over its full width, no lateral movement of the strip will occur as it passes over the roll. If the strip is off-center or the strip contact is nonuniform from side to side, the forces exerted by the roll having the greatest contact with the strip S will cause the strip to move rapidly into a centered position on the rolls.

A slight modification of my device is shown in Figure 3 in which a tongue and groove construction 2li is provided at the center of the rims I8 in order to cause both rims to deiiect in unison.

Figure 4 shows another slight embodiment of my invention in which a rubber or neoprene gasket 22 is provided between the centerfwebs I5 to seal the assembly and prevent infiltration of injurious materials into the interior thereof.

Figure 5 shows another embodiment of my invention in which the frusto-conical rim portion I8 is omitted. In this embodiment a plurality of spaced apart webs 2E are fastened to each of the tubes I0 with the frusto-conical rims of each of the rolls being provided by the outer surface of the webs. The operation of this embodiment is the same as that of Figure l.

While several embodiments of my invention have been shown and described it will be apparent that other adaptations and modifications may be made without departing from the scope of the following claims.

I claim:

1. Apparatus for automatically centering a moving object comprising a rotatable shaft, a pair of axially opposed rolls mounted on said shaft substantially coaxial therewith, each of said rolls including a tube surrounding ysaid shaft, theinternal diameter of said tube being substantially greater than the outside diameter of said shaft, the outer end of `said tube being fastened to said shaft coaxially therewith and its inner end being unsupported and the tube being free to deiect under load in a direction transverse to its axis about its shaft attached end as a pivot, a plurality of spaced apart webs surrounding said tube for rotation therewith, a rim portion carried by said Webs substantially coaxial with said shaft, the first of said 4webs being adjacent the outer end of said rim portion and the second of said webs being between the first web and the inner end of the rim portions.

2. Apparatus for automatically centering a moving object comprising a rotatable shaft, a

Patent Citations
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US1474021 *Jul 5, 1923Nov 13, 1923Lees James EdwardRoller for drawing mechanism for fibrous material
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2925168 *Nov 8, 1954Feb 16, 1960United States Steel CorpApparatus for improving tracking of endless belts
US2977112 *Jul 15, 1957Mar 28, 1961Offner Franklin FPaper drive
US3029655 *Jan 7, 1960Apr 17, 1962United States Steel CorpApparatus for automatically centering a moving object
US3334447 *Sep 28, 1965Aug 8, 1967Leveque Treffle JSanding machine
US3386729 *Jul 16, 1965Jun 4, 1968Uarco IncDeleaver
US3719098 *Mar 22, 1971Mar 6, 1973Olin CorpPulley belt assembly
US3860780 *Sep 24, 1973Jan 14, 1975Dynaloc CorpMethod of making self-centering pulley using mig welding
US4180155 *Mar 13, 1978Dec 25, 1979Industrial Service & Manufacturing Co.Multiple pitch self-cleaning belt pulley
US4336900 *Jul 17, 1980Jun 29, 1982Bell & Howell CompanyAdjustable tape guiding method and apparatus
US4607420 *Feb 6, 1984Aug 26, 1986Schwabische Huttenwerke GmbhRoller for a machine for manufacturing endless tape material
US4620432 *May 31, 1985Nov 4, 1986Belorussky Politekhnichesky InstitutDevice for manufacturing microwire
US4991276 *Jul 31, 1989Feb 12, 1991Bricmanage, Inc.Flexible conveyance and guidance roller for use in metalworking furnace structures
US5254045 *Oct 17, 1991Oct 19, 1993Bando Chemicals Industries, Ltd.Flat belt driving device
US5330575 *Nov 18, 1992Jul 19, 1994Blackhawk Metal Products, Inc.Method and apparatus for application of wallpaper paster
US6007627 *Nov 13, 1997Dec 28, 1999The Proceter & Gamble CompanyMethod and apparatus for processing a discontinuous coating on a substrate
US6315703 *May 7, 1999Nov 13, 2001Kleinewefers Textilmaschinen GmbhPressure treatment roller
US8042804 *Oct 25, 2011Canon Kabushiki KaishaSheet conveying apparatus and image forming apparatus
US20040154146 *May 17, 2001Aug 12, 2004Pruitt Paul R.Web spreader roll and methods for spreading webs of material
US20090243212 *Mar 25, 2009Oct 1, 2009Canon Kabushiki KaishaSheet conveying apparatus and image forming apparatus
US20120223117 *Sep 6, 2012Kasiske Jr W CharlesWeb media moving method
U.S. Classification226/192, 492/42, 492/27, 474/187, 474/94
International ClassificationB65G39/071, F16H7/18, F16H7/00, B65G39/00
Cooperative ClassificationF16H7/18, B65G39/071
European ClassificationB65G39/071, F16H7/18