US3737023A - Conveyor chain assemblies - Google Patents

Conveyor chain assemblies Download PDF

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Publication number
US3737023A
US3737023A US00180627A US3737023DA US3737023A US 3737023 A US3737023 A US 3737023A US 00180627 A US00180627 A US 00180627A US 3737023D A US3737023D A US 3737023DA US 3737023 A US3737023 A US 3737023A
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United States
Prior art keywords
connector
bore
chain
link
retaining pin
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Expired - Lifetime
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US00180627A
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P Collier
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Parsons Chain Co Ltd
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Parsons Chain Co Ltd
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    • 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
    • B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
    • B65G19/18—Details
    • B65G19/22—Impellers, e.g. push-plates, scrapers; Guiding means therefor
    • B65G19/24—Attachment of impellers to traction element
    • 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
    • B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
    • B65G19/04—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels
    • B65G19/06—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel
    • B65G19/08—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel and attached to a single belt, rope or chain
    • 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
    • B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
    • B65G19/04—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels
    • B65G19/06—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel
    • B65G19/10—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel and attached to a pair of belts, ropes or chains

Definitions

  • the invention relates to a chain scraper assembly in which scraper bars are secured at spaced intervales to chain lenghts.
  • the inventive feature resides in the means for connecting the scraper bar to the conveyor chain by means of a connector having transverse slots adapted to'receive a chain link, the chain link being secured in position within the slots by a pin or pins inserted in a hole or holes provided in the connector and so angled as to cut through the bottom of the outer slot and merge in the side wall of the inner slot, the inner end ofthe or each pin, when the link is in position, making engagement with the outer face of inside limb of the link.
  • This invention relates to conveyor chain assemblies having scraper bars attached at regular intervals, the chains being connected to individual scrapers by connectors.
  • Connectors take various forms, those in which the connector is made up of (i) multiple interlocking components and (ii) one-piece member. Where the connector is in one piece and comprises transverse slots to receive opposite limbs of a chain link, the slots being separated by a central tongue and bounded by inner and outer side walls, it is necessary to secure the chain link in position by deforming the metal of the connector to enclose the link or by mechanical means, e.g. a pin.
  • the link in a connector formed of a one-piece member having transverse slots separated by a central tongue to receive the chain link, the link is secured in position within the slots by means such as a pin or pins, which is so positioned in relation to its points of engagement with the respective limbs of the link that it is held under tension by reaction therewith.
  • the pin bears on the inner limb of the chain link and also with that part of the outer limb which faces the inside of the slot.
  • the head of the connector is drilled to provide a pin hole or holes which intersects the bottom of the outer slot and at its or their inner ends emerges at a point in the side wall of the inner slot so that a line drawn through the perimeter of the hole would lie in a plane which is tangential to the surface of the link.
  • the link is held in position by two pins each bearing as aforesaid against the inner limb of the link so that the latter is enclosed within its slot.
  • FIG. 1 is a side elevation of a connector in accordance with a preferred embodiment of the invention and showing a chain link in position;
  • FIG. 2 is a plan view of the arrangement of FIG. 1.
  • a one-piece connector comprising a body part 1 terminating in an enlarged head 2 in which are transverse slots 3, 4, separated by a central tongue 5.
  • the chain link indicated at C is held in position by two pins 6 inserted in angularly inclined bores open at their upper ends at 7 on the upper face of the connector and 2 and at the lower ends in the inner side wall of the tongue 5.
  • the two bores merge with the bottom wall of the outer slot 3 so that each pin is exposed in order to make contact as indicated at 8 with one limb of the chain link C, contact with the other limb being made by the protruding end of the pins as indicated at 10.
  • the pin may be tapered at one end so as to set up a wedging action and-thereby increase the thrust exerted through the pin on the opposite limb of the link.
  • the connector of this invention can be used not only in the manufacture .of continuous chain conveyor assemblies but also as a convenient means of repairing a scraper assembly having clamp-on or other types of connectors.
  • each connector having an upper surface and a lower surfacefonned by inner and outer transverse slots and a central tongue therebetween, each slot opening in a direction away from said upper surface and having a base wall portion more closely adjacent thereto, the improvement comprising means for securing a chain link within the slots, said chain link securing means including a bore at each connector extending diagonally through said connector from the upper surface thereof and into said central tongue, said bore further emerging into said outer transverse slot through said base wall portion threof, a retaining pin in said bore, and a surface of said retaining pin being exposed through said bore into said inner transverse slot.
  • the connector as defined in claim 3 including an another and identically formed bore in said connector and a retaining pin therein.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chain Conveyers (AREA)

Abstract

The invention relates to a chain scraper assembly in which scraper bars are secured at spaced intervales to chain lenghts. The inventive feature resides in the means for connecting the scraper bar to the conveyor chain by means of a connector having transverse slots adapted to receive a chain link, the chain link being secured in position within the slots by a pin or pins inserted in a hole or holes provided in the connector and so angled as to cut through the bottom of the outer slot and merge in the side wall of the inner slot, the inner end of the or each pin, when the link is in position, making engagement with the outer face of inside limb of the link.

Description

United States Patent 1191 Collier 1 June 5, 1973 [54] CONVEYOR CHAIN ASSEMBLIES [73] Assignee: Parsons Chain Company Limited,
Stowport-on-Severn, England 22 Filed: Sept. 15, 1971 21 Appl. No.: 180,627
[5 6] 7 References Cited UNITED STATES PATENTS 3,522,875 8/1970 Sme'rd ....l98/176 2,524,186 10/1950 Beninger ..l98/l75 Primary ExaminerRichard E. Aegerter Attorney-Donald M. Wight, Charles E. Brown and Vincent L. Ramik et al.
57 ABSTRACT The invention relates to a chain scraper assembly in which scraper bars are secured at spaced intervales to chain lenghts. The inventive feature resides in the means for connecting the scraper bar to the conveyor chain by means of a connector having transverse slots adapted to'receive a chain link, the chain link being secured in position within the slots by a pin or pins inserted in a hole or holes provided in the connector and so angled as to cut through the bottom of the outer slot and merge in the side wall of the inner slot, the inner end ofthe or each pin, when the link is in position, making engagement with the outer face of inside limb of the link.
4 Claims, 2 Drawing Figures CONVEYOR CHAIN ASSEMBLIES This invention relates to conveyor chain assemblies having scraper bars attached at regular intervals, the chains being connected to individual scrapers by connectors.
The present invention is concerned with an improved design of connector. Connectors take various forms, those in which the connector is made up of (i) multiple interlocking components and (ii) one-piece member. Where the connector is in one piece and comprises transverse slots to receive opposite limbs of a chain link, the slots being separated by a central tongue and bounded by inner and outer side walls, it is necessary to secure the chain link in position by deforming the metal of the connector to enclose the link or by mechanical means, e.g. a pin.
According to the present invention in a connector formed of a one-piece member having transverse slots separated by a central tongue to receive the chain link, the link is secured in position within the slots by means such as a pin or pins, which is so positioned in relation to its points of engagement with the respective limbs of the link that it is held under tension by reaction therewith.
In one such arrangement the pin bears on the inner limb of the chain link and also with that part of the outer limb which faces the inside of the slot. For this purpose the head of the connector is drilled to provide a pin hole or holes which intersects the bottom of the outer slot and at its or their inner ends emerges at a point in the side wall of the inner slot so that a line drawn through the perimeter of the hole would lie in a plane which is tangential to the surface of the link.
Preferably the link is held in position by two pins each bearing as aforesaid against the inner limb of the link so that the latter is enclosed within its slot.
The invention is illustrated in the accompanying drawings, in which:
FIG. 1 is a side elevation of a connector in accordance with a preferred embodiment of the invention and showing a chain link in position;
FIG. 2 is a plan view of the arrangement of FIG. 1.
Referring to the drawings there is shown a one-piece connector comprising a body part 1 terminating in an enlarged head 2 in which are transverse slots 3, 4, separated by a central tongue 5.
In the connector of this invention the chain link indicated at C is held in position by two pins 6 inserted in angularly inclined bores open at their upper ends at 7 on the upper face of the connector and 2 and at the lower ends in the inner side wall of the tongue 5. The two bores merge with the bottom wall of the outer slot 3 so that each pin is exposed in order to make contact as indicated at 8 with one limb of the chain link C, contact with the other limb being made by the protruding end of the pins as indicated at 10.
It will be appreciated that by reason of the pins having frictional engagement with the respective limbs of the link in this manner the pins are placed under tension and thus the link is firmly retained in position. The pin may be tapered at one end so as to set up a wedging action and-thereby increase the thrust exerted through the pin on the opposite limb of the link.
The connector of this invention can be used not only in the manufacture .of continuous chain conveyor assemblies but also as a convenient means of repairing a scraper assembly having clamp-on or other types of connectors.
What is claimed is:
1. In a chain scraper conveyor assembly having two chain rows and scraper bars connected at their ends to selected links of chain runs by connectors, each connector having an upper surface and a lower surfacefonned by inner and outer transverse slots and a central tongue therebetween, each slot opening in a direction away from said upper surface and having a base wall portion more closely adjacent thereto, the improvement comprising means for securing a chain link within the slots, said chain link securing means including a bore at each connector extending diagonally through said connector from the upper surface thereof and into said central tongue, said bore further emerging into said outer transverse slot through said base wall portion threof, a retaining pin in said bore, and a surface of said retaining pin being exposed through said bore into said inner transverse slot.
2. The improvement in a chain scraper conveyor assembly as defined in claim 1 including an another and identically formed bore in said connector and a retaining pin therein.
3. A connector for securing scraper bars to links of chains of the type in which each connector includes an upper surface and a lower surface formed by inner and outer transverse slots and a central tongue therebetween, each slot opening in a direction away from the upper surface and having a base wall portion more closely adjacent thereto, the improvement comprising means for securing a chain link within the slots,-said chain link securing means including a bore in each connector extending diagonally through said connector from the upper surface thereof and into said central tongue, said bore further emerging into said outer transverse slot through said base wall portion thereof, a retaining pin in said bore, and a surface of said retaining pin being exposed through said bore into said inner transverse slot.
4. The connector as defined in claim 3 including an another and identically formed bore in said connector and a retaining pin therein.

Claims (4)

1. In a chain scraper conveyor assembly having two chain rows and scraper bars connected at their ends to selected links of chain runs by connectors, each connector having an upper surface and a lower surface formed by inner and outer transverse slots and a central tongue therebetween, each slot opening in a direction away from said upper surface and having a base wall portion more closely adjacent thereto, the improvement comprising means for securing a chain link within the slots, said chain link securing means including a bore at each connector extending diagonally through said connector from the upper surface thereof and into said central tongue, said bore further emerging into said outer transverse slot through said base wall portion threof, a retaining pin in said bore, and a surface of said retaining pin being exposed through said bore into said inner transverse slot.
2. The improvement in a chain scraper conveyor assembly as defined in claim 1 including an another and identically formed bore in said connector and a retaining pin therein.
3. A connector for securing scraper bars to links of chains of the type in which each connector includes an upper surface and a lower surface formed by inner and outer transverse slots and a central tongue therebetween, each slot opening in a direction away from the upper surface and having a base wall portion more closely adjacent thereto, the improvement comprising means for securing a chain link within the slots, said chain link securing means including a bore in each connector extending diagonally through said connector from the upper surface thereof and into said central tongue, said bore further emerging into said outer transverse slot through said base wall portion thereof, a retaining pin in said bore, and a surface of said retaining pin being exposed through said bore into said inner transverse slot.
4. The connector as defined in claim 3 including an another and identically formed bore in said connector and a retaining pin therein.
US00180627A 1971-09-15 1971-09-15 Conveyor chain assemblies Expired - Lifetime US3737023A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079833A (en) * 1976-03-31 1978-03-21 Joy Manufacturing Company Conveyor chain flight assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524186A (en) * 1946-06-03 1950-10-03 Beninger Clarence Removable conveyer slat and latch therefor
US3522875A (en) * 1966-12-30 1970-08-04 Parsons Chain Co Ltd Continuous chain scraper assemblies

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2524186A (en) * 1946-06-03 1950-10-03 Beninger Clarence Removable conveyer slat and latch therefor
US3522875A (en) * 1966-12-30 1970-08-04 Parsons Chain Co Ltd Continuous chain scraper assemblies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079833A (en) * 1976-03-31 1978-03-21 Joy Manufacturing Company Conveyor chain flight assembly

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