GB2232636A - Belt joints - Google Patents

Belt joints Download PDF

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Publication number
GB2232636A
GB2232636A GB9010997A GB9010997A GB2232636A GB 2232636 A GB2232636 A GB 2232636A GB 9010997 A GB9010997 A GB 9010997A GB 9010997 A GB9010997 A GB 9010997A GB 2232636 A GB2232636 A GB 2232636A
Authority
GB
United Kingdom
Prior art keywords
backing layer
belt
hot melt
adhesive
bonding
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.)
Granted
Application number
GB9010997A
Other versions
GB2232636B (en
GB9010997D0 (en
Inventor
Hiram Harry Halliwell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB9010997D0 publication Critical patent/GB9010997D0/en
Publication of GB2232636A publication Critical patent/GB2232636A/en
Application granted granted Critical
Publication of GB2232636B publication Critical patent/GB2232636B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G3/00—Belt fastenings, e.g. for conveyor belts
    • F16G3/10—Joining belts by sewing, sticking, vulcanising, or the like; Constructional adaptations of the belt ends for this purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/06—Connecting the ends of materials, e.g. for making abrasive belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like
    • B29C65/5021—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like
    • B29C65/5028—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like being textile in woven or non-woven form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/116—Single bevelled joints, i.e. one of the parts to be joined being bevelled in the joint area
    • B29C66/1162—Single bevel to bevel joints, e.g. mitre joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4324—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms for making closed loops, e.g. belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4329—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms the joint lines being transversal but non-orthogonal with respect to the axis of said tubular articles, i.e. being oblique
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/10—Joining materials by welding overlapping edges with an insertion of plastic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/709—Articles shaped in a closed loop, e.g. conveyor belts
    • B29L2031/7092—Conveyor belts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Adhesive Tapes (AREA)
  • Laminated Bodies (AREA)

Abstract

A continuous belt is formed by bonding together ends of belt forming material (20) in abutting relationship by means of a bonding layer (10) over the abutting ends, the bonding layer comprising hot melt adhesive (13) and a reinforced backing layer (11, 12). The bonding layer is placed in position and heat applied to melt the adhesive. The adhesive sets on cooling. The adhesive is a plastics and has a melt temperature above 60 DEG C. The backing layer comprises plastics material with a fibrous reinforcement bonded thereto. The fibrous reinforcement may be glass, other ceramic or a plastics fibre material. The backing layer may be in strip form and comprises a nylon backing 11 and aromatic polyamide filaments reinforcement 12 laterally of the strip or in a woven form. <IMAGE>

Description

Title: Belt Joints DESCRIPTION This invention concerns belt joints and, in particular, sanding belt joints.
Sanding belts are generally made by bending together ends of a strip of sanding material to form a continuous belt. Because the working surface of the sanding material is relatively rough it is not possible simply to bond the ends of the sanding material in overlapping relationship. Furthermore, it is desirable to have as smooth a joint as possible at the working surface of the belt.
To achieve a suitable joint is at present time consuming and costly. The sanding surface at one end of the sanding material strip has to be removed, the ends of the sanding material have to be feathered and adhesive applied to the end of the sanding material to bond the ends together with applied pressure.
It is, therefore, desirable to provide an alternative means of forming such belts that is less time consuming and hopefully less expensive.
An object of the invention is to provide means for forming continuous belts, such as sanding belts, that is relative simple yet effective.
According to the present invention it is proposed that ends of the belt forming material, such as for sanding belts, be bonded together in abutting relationship by means of a bonding layer over said abutting ends, for a sanding belt on non-sanding surfaces thereof, the bonding layer comprising hot melt adhesive on a reinforced backing layer.
This invention envisages, therefore, that the ends of the belt material will be placed in abutting relationship, the bonding layer placed in position and heat applied to melt the adhesive material to bond the reinforced backing layer to the belt material followed by cooling to set the adhesive.
The preferred hot melt adhesive material will be a plastics material. A particular suitable hot melt adhesive comprises a blend of EVA thermoplastic polymers and resins. Preferably the hot melt adhesive will have a melt temperature above 60 C, especially above 80 C, so that heating of a belt during use will not cause the joint to be weakened.
The preferred backing layer also preferably comprises plastics material with a fibrous reinforcement bonded thereto. The backing layer should have a higher melt temperature than the hot melt adhesive. Polyamide, such as nylon is believed to be particularly suitable as a backing layer. The fibre reinforcement may be glass fibre or other ceramic fibre material or may be a plastics fibre material, such as aromatic polyamide filaments.
One particularly suitable backing layer material is believed to be that sold under the trade name KEVLAR which is supplied in strip form and comprises a nylon backing and aromatic polyamide filament reinforcement laterally of the backing strip, but not normal to the edges thereof, or in a woven form.
Preferably bonding material will be provided comprising hot melt adhesive already applied to the fibre reinforcement side of the backing layer.
The invention further provides, therefore, bonding material, particularly but not exclusively for bonding sanding belts, comprising a fibre reinforced backing layer and a coating of a hot melt adhesive.
The invention will now be further described by way of example only, with reference to the accompanying drawing, in which: Figure 1 is a plan view of a bonding strip according to the invention; Figure 2 is a side view of the bonding strip of Figure 1; Figure 3 is a plan view of a sanding belt made in accordance with the invention; and Figure 4 is a side view of the belt of Figure 3.
Referring to Figures 1 and 2 of the accompanying drawings, a bonding strip 10 comprises a tough plastics layer 11, such as of nylon, onto which is bonded fibres or filaments 12 of aromatic polyamide or other suitable reinforcing material such as of glass or other ceramic fibres. The fibres or filament 12 are arranged generally parallel to each other but transverse to the strip 10 and inclined relative to the edges of the strip 10. Onto the fibres or filaments 12 is bonded a layer 13 of hot melt adhesive, such as a blend of EVA thermoplastic polymers and resins. The hot melt adhesive melts at around 60-80 C and when cooled provides a very strong bond.
Turning now to Figures 3 and 4 of the accompanying drawings, a sanding belt 20 is made by joining ends of a strip of sanding material having a sanding surface 22 on a backing layer 24. The ends of the strip of sanding material are cut diagonally and brought together to abut. On the backing face 24 of the sanding material strip over the abutting ends of the strip is positioned a length of the bonding strip 10 (Figure 1) and heat applied to promote bonding.
On the sanding face of the sanding belt the joint thus made is relatively smooth and by careful selection of the hot melt adhesive a very strong joint can be created, even to the extent that the belt material is more likely to tear under stress than the joint separate.

Claims (19)

1. A method of forming a continuous belt comprising the steps of bonding ends of belt forming material in abutting relationship by placing a bonding layer over said abutting ends, the bonding layer comprising hot melt adhesive on a reinforced backing layer and applying heat to melt the adhesive to bond the reinforced backing layer to the belt material and cooling to set the adhesive.
2. A method as claimed in claim 1, wherein the hot melt adhesive is of plastics.
3. A method as claimed in claim 1 or 2, wherein the hot melt adhesive has a melt temperature above 60 degrees Centigrade.
4. A method as claimed in claim 3, wherein the hot melt adhesive has a melt temperature above 80 degrees Centigrade.
5. A method as claimed in claims 2, 3 or 4, wherein the hot melt adhesive comprises a blend of EVA thermoplastic polymers and resins.
6. A method as claimed in any one of claims 1 to 5, wherein the backing layer comprises plastics material with a fibrous reinforcement bonded thereto.
7. A method as claimed in claim 6, wherein the fibrous reinforcement is arranged laterally of but not normal to edges of the backing strip..
8. A method as claimed in any one of claims 1 to 7, wherein the backing layer has a higher melt temperature than the bonding layer.
9. A method as claimed in claim 6,7 or 8, wherein the backing layer comprises polyamide.
10. A method as claimed in any one of claims 6 to 9, wherein the reinforcement of the backing layer comprises glass fibres.
11. A method as claimed in any one of claims 6 to 9, wherein the reinforcement of the backing layer comprises ceramic fibres.
12. A method as claimed in any one of claims 6 to 9, wherein the reinforcement of the backing layer comprises plastics fibres.
13. A method as claimed in claim 12, wherein the plastics fibres are polyamide fibres.
14. A method as claimed in any one of claims 6 to 13, wherein the bonding material comprises hot melt adhesive already applied to the fibre reinforcement side of the backing layer.
15. A method as claimed in any one of claims 1 to 14 for forming a continuous sanding belt, wherein the bonding layer is applied to non-sanding surfaces thereof.
16. A continuous belt formed by a method as claimed in any one of claims 1 to 15.
17. A continuous sanding belt formed by a method as claimed in any one of claims 1 to 15.
18. A method of forming a continuous belt substantially as hereinbefore described with reference to the accompanying drawings.
19. A continuous belt substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
GB9010997A 1989-05-24 1990-05-16 Belt joints Expired - Fee Related GB2232636B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898911872A GB8911872D0 (en) 1989-05-24 1989-05-24 Belt joints

Publications (3)

Publication Number Publication Date
GB9010997D0 GB9010997D0 (en) 1990-07-04
GB2232636A true GB2232636A (en) 1990-12-19
GB2232636B GB2232636B (en) 1994-01-19

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GB898911872A Pending GB8911872D0 (en) 1989-05-24 1989-05-24 Belt joints
GB9010997A Expired - Fee Related GB2232636B (en) 1989-05-24 1990-05-16 Belt joints

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898911872A Pending GB8911872D0 (en) 1989-05-24 1989-05-24 Belt joints

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0497451A2 (en) * 1991-01-30 1992-08-05 Minnesota Mining And Manufacturing Company Abrasive belts and their manufacture
WO1993012912A1 (en) * 1991-12-20 1993-07-08 Minnesota Mining And Manufacturing Company Coated abrasive backing
EP0575834A1 (en) * 1992-06-24 1993-12-29 Saar-Gummiwerk GmbH Process for the fabrication of roofing sheets from elastomeric sheets and an elastomeric profiled strip
US5341609A (en) * 1992-01-28 1994-08-30 Minnesota Mining And Manufacturing Company Abrasive belts and their manufacture
WO1996005943A1 (en) * 1994-08-22 1996-02-29 Minnesota Mining And Manufacturing Company Splice means method and spliced abrasive article
US5529590A (en) * 1993-05-20 1996-06-25 Minnesota Mining And Manufacturing Company Process for the manufacture of endless coated abrasive articles
EP0933555A2 (en) * 1998-01-28 1999-08-04 Mol Belting Company Conveyor belt joint
WO2000075530A1 (en) * 1999-06-09 2000-12-14 Habasit Nippon Co., Ltd. Structure and method for connecting flat belt
CN1085576C (en) * 1998-03-16 2002-05-29 陈祥生 Art for connecting the ends of abrasive belt
US6406577B1 (en) 1991-12-20 2002-06-18 3M Innovative Properties Company Method of making abrasive belt with an endless, seamless backing
US6406576B1 (en) 1991-12-20 2002-06-18 3M Innovative Properties Company Method of making coated abrasive belt with an endless, seamless backing
WO2004106039A1 (en) * 2003-05-28 2004-12-09 Semperit Aktiengesellschaft Holding Splicing construction for longitudinal profiles
CN111070737A (en) * 2019-12-11 2020-04-28 山东方维新材料技术有限公司 Welding type repairing method for conveying belt

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5681612A (en) 1993-06-17 1997-10-28 Minnesota Mining And Manufacturing Company Coated abrasives and methods of preparation
US5578096A (en) 1995-08-10 1996-11-26 Minnesota Mining And Manufacturing Company Method for making a spliceless coated abrasive belt and the product thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533876A (en) * 1966-12-06 1970-10-13 Giffen Burgess Corp Process for face seaming carpeting
GB1299551A (en) * 1970-01-20 1972-12-13 Fabriksaktiebolaget Eka Endless abrasive belts and methods for manufacturing the same
GB1436368A (en) * 1973-11-28 1976-05-19 Fothergill & Harvey Ltd Endless fibre glass belting
GB1492789A (en) * 1973-11-07 1977-11-23 Carborundum Co Endless belt

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533876A (en) * 1966-12-06 1970-10-13 Giffen Burgess Corp Process for face seaming carpeting
GB1299551A (en) * 1970-01-20 1972-12-13 Fabriksaktiebolaget Eka Endless abrasive belts and methods for manufacturing the same
GB1492789A (en) * 1973-11-07 1977-11-23 Carborundum Co Endless belt
GB1436368A (en) * 1973-11-28 1976-05-19 Fothergill & Harvey Ltd Endless fibre glass belting

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5470362A (en) * 1991-01-30 1995-11-28 Minnesota Mining And Manufacturing Company Method for making coated abrasive belts
EP0497451A3 (en) * 1991-01-30 1993-01-13 Minnesota Mining And Manufacturing Company Abrasive belts and their manufacture
EP0497451A2 (en) * 1991-01-30 1992-08-05 Minnesota Mining And Manufacturing Company Abrasive belts and their manufacture
US5849646A (en) * 1991-12-20 1998-12-15 Minnesota Mining & Manufacturing Company Coated abrasive backing
WO1993012912A1 (en) * 1991-12-20 1993-07-08 Minnesota Mining And Manufacturing Company Coated abrasive backing
US5417726A (en) * 1991-12-20 1995-05-23 Minnesota Mining And Manufacturing Company Coated abrasive backing
US6406576B1 (en) 1991-12-20 2002-06-18 3M Innovative Properties Company Method of making coated abrasive belt with an endless, seamless backing
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Publication number Publication date
GB8911872D0 (en) 1989-07-12
GB2232636B (en) 1994-01-19
GB9010997D0 (en) 1990-07-04

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