GB965062A - Improvements in the grinding of contact lenses - Google Patents

Improvements in the grinding of contact lenses

Info

Publication number
GB965062A
GB965062A GB4690/63A GB469063A GB965062A GB 965062 A GB965062 A GB 965062A GB 4690/63 A GB4690/63 A GB 4690/63A GB 469063 A GB469063 A GB 469063A GB 965062 A GB965062 A GB 965062A
Authority
GB
United Kingdom
Prior art keywords
lens
grinding
shaft
template
bracket
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
GB4690/63A
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.)
Corneal Lens Corp Pty Ltd
Original Assignee
Corneal Lens Corp Pty 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 claimed from AU14087/62A external-priority patent/AU259213B2/en
Application filed by Corneal Lens Corp Pty Ltd filed Critical Corneal Lens Corp Pty Ltd
Publication of GB965062A publication Critical patent/GB965062A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B24B13/06—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses, the tool or work being controlled by information-carrying means, e.g. patterns, punched tapes, magnetic tapes
    • B24B13/065—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses, the tool or work being controlled by information-carrying means, e.g. patterns, punched tapes, magnetic tapes using a template

Landscapes

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

Abstract

965,062. Grinding. CORNEAL LENS CORPORATION PTY. Ltd. Feb. 5, 1963 [Feb. 6, 1962], No. 4690/63. Heading B3D. A method of grinding contact lenses comprises mounting the lens to be ground on a rotatable support 2, adjusting the support to bring the lens in contact with a grinding tool 35 and moving the tool over the lens surface by a pantograph device 17, 18, 20, 21 controlled from a template 24 representing an enlarged replica of the periphery and crosssectional curves of the lens. The support for the lens consists of a holder 2 on a shaft 3 which is belt-driven from an electric motor 7 and mounted on a saddle 9 vertically movable on a bracket 12 by a spindle 11, the bracket being horizontally movable on a base 1 by a spindle 14. The pantograph device has two pairs of bars 17, 18 which, at their ends, embrace cross-pieces 20, 21 and is at one end supported on a pillar 16 and at the other end supported on castors 23. The cross-piece 20 carries a bridge 32 having a rotatable disc 33 to which is fixed a tool-holder 34 for a diamond grinding tool 35. The disc also supports a bracket 37 for a polishing buff 36 connected by a flexible drive shaft 38 to a motor 39, the saddle 9 being movable to bring the buff into operation. The cross-piece 21 carries a shaft 40 having a mounting block 47 for a guide roller 48 engaging the template 24 which is secured by a clamp 25 to a table 27 adjustable by spindles 28, 29. The block also has a hook 49 which, when the guide roller reaches the end of the template, engages a pin 52 to rotate the shaft 40 and, by a linkage 43, 44, 45, 46, the disc 33 so that the grinding tool shapes the periphery of the lens.
GB4690/63A 1962-02-06 1963-02-05 Improvements in the grinding of contact lenses Expired GB965062A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU14087/62A AU259213B2 (en) 1962-02-06 Improvements in grinding of contact lenses

Publications (1)

Publication Number Publication Date
GB965062A true GB965062A (en) 1964-07-29

Family

ID=3704293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4690/63A Expired GB965062A (en) 1962-02-06 1963-02-05 Improvements in the grinding of contact lenses

Country Status (2)

Country Link
US (1) US3205625A (en)
GB (1) GB965062A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360889A (en) * 1962-12-31 1968-01-02 Indiana Contact Lens Inc Method for altering the power of a corneal contact lens
US3369329A (en) * 1965-01-29 1968-02-20 Jack A. Beiman Method for finishing contact lenses
US3722143A (en) * 1971-01-29 1973-03-27 Mabry R Contact lens edge finishing machine
US5980360A (en) * 1998-05-06 1999-11-09 Gerber Coburn Optical, Inc. Method and apparatus for performing work operations on a surface of one or more lenses
DE10254238B4 (en) * 2002-11-20 2007-04-19 Bärenz, Manfred Eyeglass lens edging machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB638140A (en) * 1945-03-27 1950-05-31 Saint Gobain Method and apparatus for shaping solid objects of glass and like materials
US2784533A (en) * 1954-02-05 1957-03-12 Diametal A G Profile grinding machine
US2939252A (en) * 1957-02-04 1960-06-07 American Optical Corp Ultrasonic lens generators
NL248521A (en) * 1959-02-18
US3043057A (en) * 1959-06-20 1962-07-10 Frederick W Armytage Machine for abrasive finishing of contoured or profiled surfaces
US3066458A (en) * 1959-10-01 1962-12-04 Continental Optical Company In Method of making lenses
US3015196A (en) * 1959-12-07 1962-01-02 David L Campbell Method of making spectacle lenses
US3145506A (en) * 1962-03-21 1964-08-25 Stanley H Vegors Contact lens contouring and polishing machine

Also Published As

Publication number Publication date
US3205625A (en) 1965-09-14

Similar Documents

Publication Publication Date Title
US2718097A (en) Lawn mower sharpener
GB965062A (en) Improvements in the grinding of contact lenses
GB1361715A (en) Cam grinding
CN111745498B (en) A deckle edge treatment facility for plastic drum processing
GB1153018A (en) Machine Tool apparatus for Machining Rotating Workpieces with a Rotating Tool
GB973642A (en) Improvements in or relating to the shaping of the edges of spectacle glasses
GB1107664A (en) Improvements in and relating to disc grinders
US2528137A (en) Lens grinding machine
US2511449A (en) Engraver's tool sharpening machine
SE338521B (en)
ES364144A1 (en) Edge grinding machine
GB391243A (en) New or improved apparatus for grinding cylindrical and tapered bodies
SE8300784L (en) SKERPNINGSANORDNING
US2229644A (en) Saw sharpener
CN221248411U (en) Milling machine workpiece support frame
US2287701A (en) Grinding wheel dresser
GB840647A (en) Improvements in or relating to grinding machines
CN213828267U (en) Manual high accuracy work piece grinding device
CN218856382U (en) Special grinding machine for nozzle taper
CN219170582U (en) Clamping mechanism for polishing of edge grinding machine
CN214322779U (en) Grinding device of full-automatic plane metal part grinding machine
US2001173A (en) Reamer grinder
ES349074A1 (en) Apparatus for controlling reciprocatory movement of a gem stone across a polishing surface
GB824735A (en) Improvements in and relating to forming apparatus for profile grinding wheels
GB1280422A (en) Device for trueing of grinding wheels