GB1321931A - Grinding of optical lens blanks - Google Patents

Grinding of optical lens blanks

Info

Publication number
GB1321931A
GB1321931A GB1321931DA GB1321931A GB 1321931 A GB1321931 A GB 1321931A GB 1321931D A GB1321931D A GB 1321931DA GB 1321931 A GB1321931 A GB 1321931A
Authority
GB
United Kingdom
Prior art keywords
overlay
grinding
optical lens
holes
lens blanks
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
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.)
J&S Wylde Ltd
Original Assignee
J&S Wylde 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
Application filed by J&S Wylde Ltd filed Critical J&S Wylde Ltd
Publication of GB1321931A publication Critical patent/GB1321931A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D99/00—Subject matter not provided for in other groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D71/00—Filing or rasping tools; Securing arrangements therefor
    • 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
    • B24B13/01—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools

Landscapes

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

Abstract

1321931 Grinding J & S WYLDE Ltd 10 May 1972 [10 May 1971] 13912/71 Heading B3D An overlay for the surface of a tool for grinding optical lens blanks comprises a sheet 18 of zinc perforated with a multiplicity of small holes 20 and having an adhesive coating on one side. The overlay may be applied to a convex or concave grinding surface and may have a circular or elliptical shape or the shape of a rectangle with well-rounded corners. The zinc may have a thickness of 30 to 35 s.w.g. and the perforations a diameter of 0À049 inch and spacing such that the holes cover 25% of the area of the overlay. A slot 34 is provided to assist fitting the overlay to the tool. With larger holes of 0À085 inch diameter and at a spacing to account for 50% of the area of the overlay, a slot is not necessary. With still larger holes a plurality of radial slots may be necessary. The adhesive coating on one side of the overlay may be protected, before use, by a paper covering.
GB1321931D 1971-05-10 1971-05-10 Grinding of optical lens blanks Expired GB1321931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1391271 1971-05-10

Publications (1)

Publication Number Publication Date
GB1321931A true GB1321931A (en) 1973-07-04

Family

ID=10031645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1321931D Expired GB1321931A (en) 1971-05-10 1971-05-10 Grinding of optical lens blanks

Country Status (1)

Country Link
GB (1) GB1321931A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019289A (en) * 1976-02-23 1977-04-26 Clayton Paul Korver Replaceable lens surfacing pad with integral wear indicating pattern
FR2386389A1 (en) * 1977-04-08 1978-11-03 Minnesota Mining & Mfg COATING FOR LENS POLISHING AND TRIMMING RODOIR
GB2137121A (en) * 1983-03-10 1984-10-03 Takeshi Kurimoto Cutting Tools with Galvanic Cathodic Protection
WO1988008357A1 (en) * 1987-04-20 1988-11-03 Smith Charles R Method of faceting gemstones
US4980995A (en) * 1987-04-20 1991-01-01 Smith C R Method of faceting gemstones
FR2801825A1 (en) * 1999-12-01 2001-06-08 Gerber Coburn Optical Inc DEVICE FOR HOLDING AN ABRASIVE PAD ON A POLISHING MACHINE IN AN APPARATUS FOR MANUFACTURING LENSES FOR EYE LENSES
US6299519B1 (en) * 1999-08-03 2001-10-09 Agere Systems Guardian Corp. Apparatus and method for removing a polishing pad from a platen
WO2006015998A1 (en) * 2004-08-03 2006-02-16 Indo Internacional, S. A. Tool and method for polishing optical surfaces

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019289A (en) * 1976-02-23 1977-04-26 Clayton Paul Korver Replaceable lens surfacing pad with integral wear indicating pattern
FR2386389A1 (en) * 1977-04-08 1978-11-03 Minnesota Mining & Mfg COATING FOR LENS POLISHING AND TRIMMING RODOIR
GB2137121A (en) * 1983-03-10 1984-10-03 Takeshi Kurimoto Cutting Tools with Galvanic Cathodic Protection
WO1988008357A1 (en) * 1987-04-20 1988-11-03 Smith Charles R Method of faceting gemstones
US4980995A (en) * 1987-04-20 1991-01-01 Smith C R Method of faceting gemstones
US6299519B1 (en) * 1999-08-03 2001-10-09 Agere Systems Guardian Corp. Apparatus and method for removing a polishing pad from a platen
FR2801825A1 (en) * 1999-12-01 2001-06-08 Gerber Coburn Optical Inc DEVICE FOR HOLDING AN ABRASIVE PAD ON A POLISHING MACHINE IN AN APPARATUS FOR MANUFACTURING LENSES FOR EYE LENSES
US6464559B2 (en) 1999-12-01 2002-10-15 Gerber Coburn Optical Inc. Device for retaining abrasive pad on lap in eyeglass lens making apparatus
US6561886B2 (en) 1999-12-01 2003-05-13 Gerber Coburn Optical Inc. Device for retaining abrasive pad on lap in eyeglass lens making apparatus
US6645059B1 (en) * 1999-12-01 2003-11-11 Gerber Coburn Optical Inc. Device for retaining abrasive pad on lap in eyeglass lens making apparatus
WO2006015998A1 (en) * 2004-08-03 2006-02-16 Indo Internacional, S. A. Tool and method for polishing optical surfaces
ES2249990A1 (en) * 2004-08-03 2006-04-01 Indo Internacional S.A. Tool and method for polishing optical surfaces

Similar Documents

Publication Publication Date Title
USD255652S (en) Bottle
CA931497A (en) Ultrasonic perforating of a sheet of film, paper or the like
USD261191S (en) Laminate sheet
USD248133S (en) Sink stopper
GB1321931A (en) Grinding of optical lens blanks
USD259499S (en) Board for a game
USD263204S (en) Article carrier blank
GB1253181A (en)
USD263339S (en) Wall paneling
USD257135S (en) 50 Star flag
USD260311S (en) Laminate sheet
USD248134S (en) Tub stopper
USD261189S (en) Laminate sheet
USD261618S (en) Article carrier blank
USD257137S (en) 52 Star flag
USD261065S (en) Laminate sheet
USD257138S (en) 50 Star flag
USD244017S (en) License plate holder
USD251808S (en) Shingle
USD257828S (en) Bottle
USD261190S (en) Laminate sheet
USD268597S (en) Drawing template
USD249137S (en) Shallow water craft
USD260313S (en) Laminate sheet
USD252713S (en) Chess board

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years