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US3288338A - Apparatus for automatically centering elongated objects - Google Patents

Apparatus for automatically centering elongated objects Download PDF

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Publication number
US3288338A
US3288338A US363568A US36356864A US3288338A US 3288338 A US3288338 A US 3288338A US 363568 A US363568 A US 363568A US 36356864 A US36356864 A US 36356864A US 3288338 A US3288338 A US 3288338A
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US
United States
Prior art keywords
covering
roll
flanges
rubber
diameter
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
Application number
US363568A
Inventor
Harry C Morrow
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United States Steel Corp
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United States Steel Corp
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Publication date
Application filed by United States Steel Corp filed Critical United States Steel Corp
Priority to US363568A priority Critical patent/US3288338A/en
Priority to GB16831/65A priority patent/GB1094841A/en
Priority to NL6505446A priority patent/NL6505446A/xx
Application granted granted Critical
Publication of US3288338A publication Critical patent/US3288338A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02—Adaptations of individual rollers and supports therefor
    • B65G39/07—Other adaptations of sleeves
    • B65G39/071—Other adaptations of sleeves for aligning belts or sheets
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/36—Guiding mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor

Definitions

  • FIGURE 1 is a plan view of an endless woven metal belt supported on head and tail self-centering rolls;
  • FIGURE 2 is a view, partly in section, showing a roll of my invention
  • FIGURE 3 is a view showing a second roll of my invention
  • FIGURE 4 is a view, similar to FIGURE 3, showing a third embodiment of my invention.
  • FIGURE 5 is a view, similar to FIGURE 3, showing a fourth embodiment of my invention.
  • reference numeral 2 indicates an endless woven metal belt which may be of any standard construction.
  • the belt 2. passes around spaced apart automatic centering rolls 4 and 6 with the roll 6 being driven by a motor 8. Since the rolls 4 and 6 have the same construction only one roll will be described in detail.
  • the roll 6 has a metal shell 10 including end flanges 12. While the roll shell is shown solid it will be understood that it may be hollow. Extending between the end flanges 12 and surrounding the metal shell 10 is a rubber covering 14 having a central radial slot 16 therein and slots '18 and 2t) on each side of a slot 16. The slots 18 and 20 extend from the roll surface inwardly toward the axis of the roll away from the transverse center thereof.
  • the distance between the flanges 12 is less than the width of the belt 2 and preferably is between 2 /z and 3 inches less than the width of the belt. It is preferred that the outer diameter of the flanges l2 and the rubber covering 14 be uniform over the full width of the belt.
  • roll shell 22 is provided with spaced apart flanges 24 which differ from the flanges 12 in that the outer surface thereof is arranged on a taper with the diameter increasing from the end of the roll inwardly toward the transverse center.
  • Rubber covering 26 is slotted in the same manner as rubber covering 14, but intead of having a uniform diameter the covering 26 has a central flat portion 28 of maximum diameter and tapered side portions 30.
  • the taper of the side portion 30 is the same as the taper of the outside surface of the flanges 24.
  • the roll shown in FIGURE 4 has a metal shell 31, spaced apart flanges 32 which have cylindrical outer surfaces, and a rubber covering 34 having a cylindrical cen- 3,288,338 Patented Nov. 29, 1966 ter portion 36, and flat end portions 38 which are connected to center portion 36 by tapered portions 40.
  • the diameter of the flanges 32 is the same as the diameter of flat portion 38 and the slotting of the covering 34 is the same as in the other embodiments.
  • a metal shell 42 has spaced apart flanges 44 with a rubber covering 46 therebetween.
  • the outer surface of flanges 44 and rubber covering 46 form a continuous crown.
  • the slotting of the rubber covering 46 is the same as in the other embodiments.
  • the rubber covering is of less length than the width of the belt 2 and that the outer contour of the flanges conforms to the outer contour of the rubber covering adjacent thereto so that there is a smooth transition between the metal and the rubber.
  • the diameter of the flange adjacent the rubber covering is the same as the diameter of the rubber covering adjacent thereto and the angle of the face of the flange with respect to the axis of the roll is the same as the angle of the surface of the rubber covering with respect to the axis of the roll.
  • the rolls shown may be used in handling other elongated objects such as strip having raw edges and that other resilient or rubber like material may be substituted for the rubber covering.
  • a roll for automatically centering an elongated metal object passing thereover which comprises a metal shell, a radial flange at each end of said shell for support ing the edges of the object, the distance between said flanges being less than the width of the object passing thereover, and a rubber like covering extending between said flanges, said covering having a central radial slot therein and spaced apart slots on each side of said radial slot exending inwardly toward the axis of the roll away from the transverse center thereof, the diameter of each flange adjacent said covering being the same as the diameter of the covering adjacent thereto and the face of the flange and the surface of the rubber covering adjacent thereto being arranged at the same angle to the axis of the roll.
  • a roll according to claim I in which the outer surface of the roll is cylindrical.
  • a roll according to claim I in which the outer surface of the covering has a central flat portion of maximum diameter and tapered side portions, and the outer faces of the flanges are tapered to a minimum diameter at the ends of the roll.
  • An assembly comprising an endless woven metal belt, and a pair of rolls around which the belt passes, at least one of said rolls being a self-centering roll including a metal shell, a radial flange at each end of said shell, the distance between said flanges being less than the width of said belt, and a rubber like covering extending between said flanges, said covering having a central radial slot therein and spaced part slots on each side of said radial slot extending inwardly toward the axis of the roll away from the transverse center thereof, the diameter of each flange adjacent said covering being the same as the diame- 3 ter of the covering adjacent thereto and the face of the flange and the surface of the rubber covering adjacent thereto being arranged at the same angle to the axis of the roll.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Tyre Moulding (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Description

Nov. 29, 1966 H. c. MORROW APPARATUS FOR AUTOMATICALLY CENTERING ELONGATED OBJECTS Filed April 29, 1964 INVE/VTUR HARRY c. MORROW United States Patent 3,288,338 APPARATUS FUR AUTOMATICALLY CENTERING ELONGATED OBJECTS Harry C. Morrow, Bethel Park, Pa., assignor to United States teel Corporation, a corporation of Delaware Filed Apr. 29, 1964, Ser. No. 363,568 10 Claims. (Cl. 226-193) This invention relates to apparatus for automatically centering elongated objects and particularly for centering endless woven metal belts. Woven metal belts are difficult to center and it has been proposed to use self-centering rolls such as shown in Lorig Patent No. 2,592,581, dated April 15, 1952 to keep the belt centered. While these rolls perform the centering function satisfactorily the rolls are rubber covered and the life of the roll is relatively short. I have found that this short life of the roll is caused by the rough or raw edges of the belt.
It is therefore an object of my invention to provide apparatus for automatically centering elongated objects having raw edges wherein rubber covered centering rolls are provided with a wear surface for the edge of the object without destroying the centering action of the roll.
This and other objects will be more apparent after referring to the following specification and attached drawing, in which:
FIGURE 1 is a plan view of an endless woven metal belt supported on head and tail self-centering rolls;
FIGURE 2 is a view, partly in section, showing a roll of my invention;
FIGURE 3 is a view showing a second roll of my invention;
FIGURE 4 is a view, similar to FIGURE 3, showing a third embodiment of my invention; and
FIGURE 5 is a view, similar to FIGURE 3, showing a fourth embodiment of my invention.
Referring more particularly to FIGURES 1 and 2 of the drawings, reference numeral 2 indicates an endless woven metal belt which may be of any standard construction. The belt 2. passes around spaced apart automatic centering rolls 4 and 6 with the roll 6 being driven by a motor 8. Since the rolls 4 and 6 have the same construction only one roll will be described in detail.
According to my invention the roll 6 has a metal shell 10 including end flanges 12. While the roll shell is shown solid it will be understood that it may be hollow. Extending between the end flanges 12 and surrounding the metal shell 10 is a rubber covering 14 having a central radial slot 16 therein and slots '18 and 2t) on each side of a slot 16. The slots 18 and 20 extend from the roll surface inwardly toward the axis of the roll away from the transverse center thereof. The distance between the flanges 12 is less than the width of the belt 2 and preferably is between 2 /z and 3 inches less than the width of the belt. It is preferred that the outer diameter of the flanges l2 and the rubber covering 14 be uniform over the full width of the belt.
In the embodiment shown in FIGURE 3 roll shell 22 is provided with spaced apart flanges 24 which differ from the flanges 12 in that the outer surface thereof is arranged on a taper with the diameter increasing from the end of the roll inwardly toward the transverse center. Rubber covering 26 is slotted in the same manner as rubber covering 14, but intead of having a uniform diameter the covering 26 has a central flat portion 28 of maximum diameter and tapered side portions 30. The taper of the side portion 30 is the same as the taper of the outside surface of the flanges 24.
The roll shown in FIGURE 4 has a metal shell 31, spaced apart flanges 32 which have cylindrical outer surfaces, and a rubber covering 34 having a cylindrical cen- 3,288,338 Patented Nov. 29, 1966 ter portion 36, and flat end portions 38 which are connected to center portion 36 by tapered portions 40. The diameter of the flanges 32 is the same as the diameter of flat portion 38 and the slotting of the covering 34 is the same as in the other embodiments.
In the embodiment of FIGURE 5 a metal shell 42 has spaced apart flanges 44 with a rubber covering 46 therebetween. In this embodiment the outer surface of flanges 44 and rubber covering 46 form a continuous crown.
The slotting of the rubber covering 46 is the same as in the other embodiments.
It will be seen that in each of the rolls the rubber covering is of less length than the width of the belt 2 and that the outer contour of the flanges conforms to the outer contour of the rubber covering adjacent thereto so that there is a smooth transition between the metal and the rubber. In other words the diameter of the flange adjacent the rubber covering is the same as the diameter of the rubber covering adjacent thereto and the angle of the face of the flange with respect to the axis of the roll is the same as the angle of the surface of the rubber covering with respect to the axis of the roll. It will be understood that the rolls shown may be used in handling other elongated objects such as strip having raw edges and that other resilient or rubber like material may be substituted for the rubber covering.
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. A roll for automatically centering an elongated metal object passing thereover which comprises a metal shell, a radial flange at each end of said shell for support ing the edges of the object, the distance between said flanges being less than the width of the object passing thereover, and a rubber like covering extending between said flanges, said covering having a central radial slot therein and spaced apart slots on each side of said radial slot exending inwardly toward the axis of the roll away from the transverse center thereof, the diameter of each flange adjacent said covering being the same as the diameter of the covering adjacent thereto and the face of the flange and the surface of the rubber covering adjacent thereto being arranged at the same angle to the axis of the roll.
2. A roll according to claim I in which the outer surface of the roll is cylindrical.
3. A roll according to claim I in which the outer surface of the covering has a central flat portion of maximum diameter and tapered side portions, and the outer faces of the flanges are tapered to a minimum diameter at the ends of the roll.
4. A roll according to claim 1 in which the outer surface of the covering has a central flat portion of maximum 7 diameter, a flat portion of minimum diameter at each end of the covering and tapered intermediate portions connecting the central and end portions, and the outer faces of the flanges are cylindrical.
5. A roll according to claim 1 in which the outer surface of the roll is crowned.
6. An assembly comprising an endless woven metal belt, and a pair of rolls around which the belt passes, at least one of said rolls being a self-centering roll including a metal shell, a radial flange at each end of said shell, the distance between said flanges being less than the width of said belt, and a rubber like covering extending between said flanges, said covering having a central radial slot therein and spaced part slots on each side of said radial slot extending inwardly toward the axis of the roll away from the transverse center thereof, the diameter of each flange adjacent said covering being the same as the diame- 3 ter of the covering adjacent thereto and the face of the flange and the surface of the rubber covering adjacent thereto being arranged at the same angle to the axis of the roll.
7. An assembly according to claim 6 in which the outer 5 surface of said self-centering roll is cylindrical.
8. An assembly according to claim 6 in which the said covering has a central flat portion of maximum diameter and tapered side portions, and the outer faces of the flanges are tapered to a minimum diameter at the end of the roll.
9. An assembly according to claim 6 in which the said covering has a central flat portion of maximum diameter, a fiat portion of minimum diameter at each end of the covering and tapered intermediate portions connecting the central and end portions, and the outer faces of the flanges are cylindrical.
10. An assembly according to claim 6 in which the outer surface of said self-centering roll is crowned.
References Cited by the Examiner UNITED STATES PATENTS 2,582,280 1/1952 Robertson 226-190 X 2,721,739 10/1955 Mursch 226192 3,077,293 2/1963 Watkins 226191 X FOREIGN PATENTS 581,525 8/1959 Canada. 755,839 8/1956 Great Britain.
OTHER REFERENCES United States Steel: The Application of Self Centering Rolls, USS Publication No. ADVL-230-53,
15 printed in U.S.A., FIG. 7 of p. 12.
M. HENSON WOOD, JR., Primary Examiner.
I. N. ERLICH, Examiner.

Claims (1)

1. A ROLL FOR AUTOMATICALLY CENTERING AN ELONGATED METAL OBJECT PASSING THEREOVER WHICH COMPRISES A METAL SHELL, A RADIAL FLANGE AT EACH END OF SAID SHELL FOR SUPPORTING THE EDGES OF THE OBJECT, THE DISTANCE BETWEEN SAID SAID FLANGES BEING LESS THAN THE WIDTH OF THE OBJECT PASSING THEREOVER, AND A RUBBER LIKE COVERING EXTENDING BETWEEN SAID FLANGES, SAID COVERING HAVING A CENTRAL RADIAL SLOT THEREIN AND SPACED APART SLOTS ON EACH SIDE OF SAID RADIAL SLOT EXTENDING INWARDLY TOWARD THE AXIS OF THE ROLL AWAY FROM THE TRANSVERSE CENTER THEREOF, THE DIAMETER OF EACH FLANGE ADJACENT SAID COVERING BEING THE SAME AS THE DIAMETER OF THE COVERING ADJACENT THERETO AND THE FACE OF THE FLANGE AND THE SURFACE OF THE RUBBER COVERING ADJACENT THERETO BEING ARRANGED AT THE SAME ANGLE TO THE AXIS OF THE ROLL.
US363568A 1964-04-29 1964-04-29 Apparatus for automatically centering elongated objects Expired - Lifetime US3288338A (en)

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US363568A US3288338A (en) 1964-04-29 1964-04-29 Apparatus for automatically centering elongated objects
GB16831/65A GB1094841A (en) 1964-04-29 1965-04-21 Apparatus for automatically centering elongated strips
NL6505446A NL6505446A (en) 1964-04-29 1965-04-28

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643791A (en) * 1969-10-14 1972-02-22 United States Steel Corp Apparatus for automatically centering strip
US4150773A (en) * 1976-12-30 1979-04-24 Robert Bosch Gmbh Guide roller construction for magnetic tape recording/reproducing systems, and especially for video tape systems
DE19908917A1 (en) * 1999-03-02 2000-09-07 Schlafhorst & Co W Drive disk for the carrier belt to remove dirt/debris from a textile machine has a peripheral groove to take a friction cladding as teeth with a toothed belt to prevent belt slippage
US20150043942A1 (en) * 2013-08-08 2015-02-12 Kyocera Document Solutions Inc. Driving device for driving endless metal belt and image forming apparatus
US9010495B2 (en) 2004-08-04 2015-04-21 Otis Elevator Company Sheave for use in an elevator system
US20150233445A1 (en) * 2013-05-28 2015-08-20 Kyocera Document Solutions Inc. Metal belt and driving mechanism with same metal belt
US20160039639A1 (en) * 2013-03-15 2016-02-11 Otis Elevator Company Asymmetric and steered sheaves for twisted multi-belt elevator systems
US20160039640A1 (en) * 2013-03-15 2016-02-11 Otis Elevator Company Traction sheave for elevator system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3263068D1 (en) * 1981-02-02 1985-05-23 Dataproducts Corp Pulley system for band printers

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582280A (en) * 1948-08-30 1952-01-15 John D Robertson Curved expander roll
US2721739A (en) * 1952-04-17 1955-10-25 United States Steel Corp Apparatus for positioning strip
GB755839A (en) * 1953-03-18 1956-08-29 United States Steel Corp Improvements in or relating to endless conveyor belts
CA581525A (en) * 1959-08-18 H. Mursch William Flexible self-centering roll
US3077293A (en) * 1960-05-16 1963-02-12 Midwestern Instr Inc Pressure roller assembly for recording media

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA581525A (en) * 1959-08-18 H. Mursch William Flexible self-centering roll
US2582280A (en) * 1948-08-30 1952-01-15 John D Robertson Curved expander roll
US2721739A (en) * 1952-04-17 1955-10-25 United States Steel Corp Apparatus for positioning strip
GB755839A (en) * 1953-03-18 1956-08-29 United States Steel Corp Improvements in or relating to endless conveyor belts
US3077293A (en) * 1960-05-16 1963-02-12 Midwestern Instr Inc Pressure roller assembly for recording media

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643791A (en) * 1969-10-14 1972-02-22 United States Steel Corp Apparatus for automatically centering strip
US4150773A (en) * 1976-12-30 1979-04-24 Robert Bosch Gmbh Guide roller construction for magnetic tape recording/reproducing systems, and especially for video tape systems
DE19908917A1 (en) * 1999-03-02 2000-09-07 Schlafhorst & Co W Drive disk for the carrier belt to remove dirt/debris from a textile machine has a peripheral groove to take a friction cladding as teeth with a toothed belt to prevent belt slippage
US9010495B2 (en) 2004-08-04 2015-04-21 Otis Elevator Company Sheave for use in an elevator system
US9643819B2 (en) * 2013-03-15 2017-05-09 Otis Elevator Company Asymmetric and steered sheaves for twisted multi-belt elevator systems
US10301151B2 (en) * 2013-03-15 2019-05-28 Otis Elevator Company Traction sheave for elevator system
US9932205B2 (en) * 2013-03-15 2018-04-03 Otis Elevator Company Asymmetric and steered sheaves for twisted multi-belt elevator systems
US20160039639A1 (en) * 2013-03-15 2016-02-11 Otis Elevator Company Asymmetric and steered sheaves for twisted multi-belt elevator systems
US20160039640A1 (en) * 2013-03-15 2016-02-11 Otis Elevator Company Traction sheave for elevator system
US20170129743A1 (en) * 2013-03-15 2017-05-11 Otis Elevator Company Asymmetric and steered sheaves for twisted multi-belt elevator systems
US9423002B2 (en) * 2013-05-28 2016-08-23 Kyocera Document Solutions Inc. Metal belt and driving mechanism with same metal belt
US20150233445A1 (en) * 2013-05-28 2015-08-20 Kyocera Document Solutions Inc. Metal belt and driving mechanism with same metal belt
US9285752B2 (en) * 2013-08-08 2016-03-15 Kyocera Document Solutions Inc. Driving device for driving endless metal belt and image forming apparatus
US20150043942A1 (en) * 2013-08-08 2015-02-12 Kyocera Document Solutions Inc. Driving device for driving endless metal belt and image forming apparatus

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NL6505446A (en) 1965-11-01
GB1094841A (en) 1967-12-13

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