GB407407A - Improvements in glass grinding apparatus - Google Patents

Improvements in glass grinding apparatus

Info

Publication number
GB407407A
GB407407A GB26382/32A GB2638232A GB407407A GB 407407 A GB407407 A GB 407407A GB 26382/32 A GB26382/32 A GB 26382/32A GB 2638232 A GB2638232 A GB 2638232A GB 407407 A GB407407 A GB 407407A
Authority
GB
United Kingdom
Prior art keywords
grooves
tool
grinding
operative surface
blocks
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
GB26382/32A
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.)
Pilkington Group Ltd
Original Assignee
Pilkington Brothers Ltd
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
Priority to BE398709D priority Critical patent/BE398709A/xx
Application filed by Pilkington Brothers Ltd filed Critical Pilkington Brothers Ltd
Priority to GB26382/32A priority patent/GB407407A/en
Priority to FR760986D priority patent/FR760986A/en
Priority to DEP68221D priority patent/DE660280C/en
Priority to US690449A priority patent/US1956781A/en
Publication of GB407407A publication Critical patent/GB407407A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/02—Wheels in one piece
    • B24D7/04—Wheels in one piece with reinforcing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/02—Wheels in one piece

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

407,407. Grinding sheet glass. PILKINGTON BROS., Ltd., 703, Tower Building, Water Street, Liverpool, and WALDRON, F. B., Eccleston Park, Prescot, Lancashire. Sept. 22, 1932, No. 26382. [Class 60.] Wheels and other tools.-In a grinding tool 1 for grinding glass the operative surface 2 is formed by nogs or blocks 7 whose leading faces 13 are inclined forwardly (in relation to the direction of rotation) to radii of the tool and also forwardly away from the operative surface. The tool has a central aperture 4 separated from an annular channel 5 by a wall 10. The operative surface is divided up by circular grooves 6. The two inner rings are divided to form the blocks 7 by inclined grooves 8 but the grooves of the outer ring do not extend to the periphery of the disc. Abrasive is supplied to the central aperture through a hole 9 and passes through apertures 12 to the channel 5 and thence to the grooves. In a modification the tool may be made by bolting blocks on to a flat disc. The grooves 6 may be such that the inner face of each block is inclined inwardly away from the operative surface. The invention is particularly applicable to the grinding of the underside of a glass sheet.
GB26382/32A 1932-09-22 1932-09-22 Improvements in glass grinding apparatus Expired GB407407A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE398709D BE398709A (en) 1932-09-22
GB26382/32A GB407407A (en) 1932-09-22 1932-09-22 Improvements in glass grinding apparatus
FR760986D FR760986A (en) 1932-09-22 1933-09-20 Improvements to glass lapping devices
DEP68221D DE660280C (en) 1932-09-22 1933-09-21 Grinding wheel for glass grinding machines
US690449A US1956781A (en) 1932-09-22 1933-09-21 Glass grinding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26382/32A GB407407A (en) 1932-09-22 1932-09-22 Improvements in glass grinding apparatus

Publications (1)

Publication Number Publication Date
GB407407A true GB407407A (en) 1934-03-22

Family

ID=10242765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26382/32A Expired GB407407A (en) 1932-09-22 1932-09-22 Improvements in glass grinding apparatus

Country Status (5)

Country Link
US (1) US1956781A (en)
BE (1) BE398709A (en)
DE (1) DE660280C (en)
FR (1) FR760986A (en)
GB (1) GB407407A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344302A (en) * 1997-09-01 2000-06-07 United Microelectronics Corp Retainer ring for chemical mechanical polishing machine
GB2345255A (en) * 1998-12-29 2000-07-05 United Microelectronics Corp Chemical-mechanical polishing pad.
CN100479992C (en) * 2004-06-16 2009-04-22 Cmp罗姆和哈斯电子材料控股公司 Polishing seat with concave structure for improving mixed tail trace

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597187A (en) * 1949-02-26 1952-05-20 Crane Packing Co Adjustable lap
NL91439C (en) * 1952-03-20
DE1195632B (en) * 1954-09-08 1965-06-24 Glaceries De La Sambre Sa Device for the promotion and distribution of the processing agent for a tool for processing a glass ribbon
US2859565A (en) * 1955-01-31 1958-11-11 Pilkington Brothers Ltd Apparatus for grinding flat glass on both faces simultaneously
US3111791A (en) * 1962-07-27 1963-11-26 Harry J Harris Automatic lapping machines
US5681216A (en) * 1996-02-06 1997-10-28 Elantec, Inc. High precision polishing tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344302A (en) * 1997-09-01 2000-06-07 United Microelectronics Corp Retainer ring for chemical mechanical polishing machine
GB2344302B (en) * 1997-09-01 2002-11-06 United Microelectronics Corp Chemical-mechanical polishing machine and retainer ring thereof
GB2345255A (en) * 1998-12-29 2000-07-05 United Microelectronics Corp Chemical-mechanical polishing pad.
US6120366A (en) * 1998-12-29 2000-09-19 United Microelectronics Corp. Chemical-mechanical polishing pad
GB2345255B (en) * 1998-12-29 2000-12-27 United Microelectronics Corp Chemical-Mechanical Polishing Pad
CN100479992C (en) * 2004-06-16 2009-04-22 Cmp罗姆和哈斯电子材料控股公司 Polishing seat with concave structure for improving mixed tail trace

Also Published As

Publication number Publication date
DE660280C (en) 1938-05-23
FR760986A (en) 1934-03-07
US1956781A (en) 1934-05-01
BE398709A (en)

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