GB1251770A - - Google Patents

Info

Publication number
GB1251770A
GB1251770A GB1251770DA GB1251770A GB 1251770 A GB1251770 A GB 1251770A GB 1251770D A GB1251770D A GB 1251770DA GB 1251770 A GB1251770 A GB 1251770A
Authority
GB
United Kingdom
Prior art keywords
strands
warp
weft
glass cloth
matrix
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
Application number
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 filed Critical
Publication of GB1251770A publication Critical patent/GB1251770A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B24D11/02—Backings, e.g. foils, webs, mesh fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/34—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
    • B24D3/342—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent
    • B24D3/344—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties incorporated in the bonding agent the bonding agent being organic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/02—Wheels in one piece
    • B24D5/04—Wheels in one piece with reinforcing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/12—Cut-off wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Woven Fabrics (AREA)

Abstract

1,251,770. Abrasive tools. NORTON CO. 15 June, 1970 [19 June, 1969], No. 28850/70. Heading B3D. A cut-off wheel having a diameter to thickness ratio of at least 40 comprises abrasive grains bonded in an organic polymer matrix, and at least one woven glass cloth disc located within the bonding matrix and parallel to the side faces of the wheel, the warp and weft of the glass cloth consisting of bundles of continuous filaments having a maximum twist per inch of 1À5. The organic polymer matrix may be a phenol-formaldehyde condensation resin, a matrix of hydrocarbon rubber and a phenolformaldehyde condensation resin, or shellac. The glass cloth disc 32 extends from the periphery 34 to a point 36 spaced from the centre hole 38, and is treated with silane to improve adhesion to the organic matrix which includes abrasive grains of aluminium oxide. Where more than one glass cloth disc is used, the warp and weft of one disc are arranged at 450 to those of the other. The warp and weft strands 16, 18 may be woven, as shown in Fig. 2, or the warp strands may merely be placed over the weft strands. In another arrangement, the strands are radially orientated with a single strand in the form of a flat spiral, or a plurality of concentric strands woven through the radial strands. The cut-off wheel, which may be 20 inch in diameter and 0À18 inch thick, is stated as being operable at 23,000 s.f.p.m.
GB1251770D 1969-06-19 1970-06-15 Expired GB1251770A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83474469A 1969-06-19 1969-06-19

Publications (1)

Publication Number Publication Date
GB1251770A true GB1251770A (en) 1971-10-27

Family

ID=25267688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1251770D Expired GB1251770A (en) 1969-06-19 1970-06-15

Country Status (9)

Country Link
JP (1) JPS4822518B1 (en)
AT (1) AT310027B (en)
CA (1) CA928505A (en)
DE (1) DE2030068A1 (en)
ES (1) ES159517Y (en)
FR (1) FR2052820A5 (en)
GB (1) GB1251770A (en)
NL (1) NL7009004A (en)
ZA (1) ZA704049B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0448314A2 (en) * 1990-03-19 1991-09-25 De Beers Industrial Diamond Division (Proprietary) Limited Saws

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020147922A1 (en) * 2019-01-14 2020-07-23 August Rüggeberg Gmbh & Co. Kg Grinding disc and use of such a grinding disc

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0448314A2 (en) * 1990-03-19 1991-09-25 De Beers Industrial Diamond Division (Proprietary) Limited Saws
EP0448314A3 (en) * 1990-03-19 1992-02-26 De Beers Industrial Diamond Division (Proprietary) Limited Saws

Also Published As

Publication number Publication date
DE2030068A1 (en) 1972-06-08
ZA704049B (en) 1971-02-24
FR2052820A5 (en) 1971-04-09
CA928505A (en) 1973-06-19
ES159517U (en) 1970-08-16
AT310027B (en) 1973-09-10
NL7009004A (en) 1970-12-22
JPS4822518B1 (en) 1973-07-06
ES159517Y (en) 1971-09-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee