GB1221242A - Grinding pad - Google Patents

Grinding pad

Info

Publication number
GB1221242A
GB1221242A GB5429/68A GB542968A GB1221242A GB 1221242 A GB1221242 A GB 1221242A GB 5429/68 A GB5429/68 A GB 5429/68A GB 542968 A GB542968 A GB 542968A GB 1221242 A GB1221242 A GB 1221242A
Authority
GB
United Kingdom
Prior art keywords
pad
tool
pressed
grinding
wheel
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
GB5429/68A
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.)
Univis Inc
Original Assignee
Univis Inc
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 Univis Inc filed Critical Univis Inc
Publication of GB1221242A publication Critical patent/GB1221242A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
    • 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
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/02—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

1,221,242. Grinding. UNIVIS Inc. 2 Feb., 1968 [22 Aug., 1967], No. 5429/68. Heading B3D. A replaceable grinding pad for grinding lenses comprises a grinding pad formed about the surface of tool with which the pad is to be used, the pad having a grinding surface having substantially the same configuration and cuvature as the tool and means for receiving, retaining and distributing a quantity of abrasive slurry mixture. The pad 30, Fig. 2, is formed of sheet steel 0À005 to 0À010 inch thick which is pressed into the desired shape between the tool 16 and a block 12 of elastomeric material. If the pad is to have a toric shape, it may first be pressed to a spherical shape and then to a toric shape. The edge of the pad may be pressed' around the edge of the tool and the pad is secured to the tool by adhesive. The means for receiving, retaining and distributing the abrasive slurry may comprise grooves 46, Fig. 9, which are formed in the pad by being pressed, during forming of the pad, into groooves in the tool. In other embodiments, the means comprise various patterns of slots cut in the pad, Fig. 10. In a further embodiment, a succession of pads or a continuous pad 30c, Fig. 14, may be formed on the periphery of a wheel 52 from a blank 56 which is pressed on to the wheel by an elastic wheel 54.
GB5429/68A 1967-08-22 1968-02-02 Grinding pad Expired GB1221242A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66237967A 1967-08-22 1967-08-22

Publications (1)

Publication Number Publication Date
GB1221242A true GB1221242A (en) 1971-02-03

Family

ID=24657472

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5429/68A Expired GB1221242A (en) 1967-08-22 1968-02-02 Grinding pad
GB09860/68A Expired GB1221243A (en) 1967-08-22 1968-02-02 Method of making a grinding pad

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB09860/68A Expired GB1221243A (en) 1967-08-22 1968-02-02 Method of making a grinding pad

Country Status (7)

Country Link
US (1) US3699721A (en)
BE (1) BE711077A (en)
CH (1) CH500049A (en)
DE (1) DE1652934A1 (en)
FR (1) FR1560660A (en)
GB (2) GB1221242A (en)
NL (1) NL155468B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921344A (en) * 1973-05-14 1975-11-25 American Optical Corp Lens surfacing pads and method of making the same
US3959935A (en) * 1975-03-18 1976-06-01 Interoptic Laboratories, Inc. Abrasive pad for grinding lenses
US4019289A (en) * 1976-02-23 1977-04-26 Clayton Paul Korver Replaceable lens surfacing pad with integral wear indicating pattern
US4086068A (en) * 1977-04-08 1978-04-25 Minnesota Mining And Manufacturing Company Lens grinding and polishing lap cover and method of making same
US4627195A (en) * 1985-09-18 1986-12-09 The United States Of America As Represented By The Secretary Of The Air Force Computer controller optical surfacing (CCOS) lap pressure control system
GB2255922B (en) * 1991-05-24 1994-07-20 Stephen Jack Wylde Lens surface former and polishing tool
US5274959A (en) * 1991-06-05 1994-01-04 Texas Instruments Incorporated Method for polishing semiconductor wafer edges
FR2784924A1 (en) * 1998-10-21 2000-04-28 Delamare Sovra Sa Retaining mechanism for fixing polishing sheet on to polishing tool
BRPI0816650A2 (en) * 2007-09-24 2015-03-10 Saint Gobain Abrasives Inc ABRASIVE EDGES WITH EDGES
US7927092B2 (en) * 2007-12-31 2011-04-19 Corning Incorporated Apparatus for forming a slurry polishing pad
DE102010019491B4 (en) * 2010-04-30 2015-07-09 Carl Zeiss Vision International Gmbh Polishing tool for processing optical surfaces, in particular free-form surfaces
WO2012026992A1 (en) * 2010-08-26 2012-03-01 Coburn Technologies, Inc. Systems and methods for polishing freeform lenses
US9423324B1 (en) * 2013-03-07 2016-08-23 J.M. Parish Enterprises, LLC Machine for preparing an asphalt sample by polishing the surface of the sample and associated method
CN103158079B (en) * 2013-03-08 2015-10-07 厦门大学 A kind of processing unit (plant) of air bag polishing tool surface finish pad
CN104149040A (en) * 2014-07-28 2014-11-19 江苏双仪光学器材有限公司 Glue-fitting lapping vessel machine
CN105598786B (en) * 2015-12-22 2018-10-09 中国科学院长春光学精密机械与物理研究所 The class air bag bistrique aspherical for polishing super large irrelevance
CN112975770B (en) * 2021-03-31 2022-08-23 长光卫星技术股份有限公司 A gasbag press mold bonding frock for polishing of numerical control intelligence

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749681A (en) * 1952-12-31 1956-06-12 Stephen U Sohne A Grinding disc
US2752738A (en) * 1953-09-04 1956-07-03 Donald W Kent Overlay for and method of grinding lens blanks
US2886923A (en) * 1957-01-18 1959-05-19 American Optical Corp Lens surfacing techniques
US3144737A (en) * 1962-09-27 1964-08-18 Bausch & Lomb Aluminum foil lens grinding pad
US3128580A (en) * 1963-01-30 1964-04-14 Super Cut Composite lap for grinding and polishing machines
US3583111A (en) * 1966-08-22 1971-06-08 David Volk Lens grinding apparatus

Also Published As

Publication number Publication date
NL155468B (en) 1978-01-16
DE1652934A1 (en) 1971-04-29
CH500049A (en) 1970-12-15
US3699721A (en) 1972-10-24
FR1560660A (en) 1969-03-21
NL6809911A (en) 1969-02-25
BE711077A (en) 1968-08-21
GB1221243A (en) 1971-02-03

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