GB127971A - Method of and Means for Grinding Lenses. - Google Patents

Method of and Means for Grinding Lenses.

Info

Publication number
GB127971A
GB127971A GB944318A GB944318A GB127971A GB 127971 A GB127971 A GB 127971A GB 944318 A GB944318 A GB 944318A GB 944318 A GB944318 A GB 944318A GB 127971 A GB127971 A GB 127971A
Authority
GB
United Kingdom
Prior art keywords
shaft
tool
arm
work
adjustable
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
GB944318A
Inventor
Lewis William Goold
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.)
Individual
Original Assignee
Individual
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 FR490377D priority Critical patent/FR490377A/en
Application filed by Individual filed Critical Individual
Priority to GB944318A priority patent/GB127971A/en
Publication of GB127971A publication Critical patent/GB127971A/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
    • B24B13/02—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

Landscapes

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

Abstract

127,971. Goold, L. W., (Continental Lens Co.). June 8, 1918. Lenses, grinding and polishing.-In a machine for grinding single-focus or multi-focal lenses, the lens 10 is mounted on a holder 9, adapted to be rotated by means of a driving-shaft 4, which may be mounted either concentric with, or at various degrees of eccentricity to, the axis of the shaft by means of sleeves 8<1>, 8<11> adapted to fit on the tapered seat 8 of the shaft 4. The shaft, which may be vertically adjusted by means of a screw 5, is mounted in bearings in the machine-table 2 which also carries spaced supports 1 for the trunnions 15, 16 of a rockable member 14. This member is adjustable axially of its trunnions by means of a graduated screwed sleeve 18, and is formed with an arc-shaped guide 21 and a slot 22 adapted to receive a tool-holder member 23, carrying a shaft 25 with a tool 28, and adapted to be moved by hand along the guide during grinding and to be locked in any angular position by screws 24; downward movement of the shaft is definitely limited by the engagement of a nut 46 thereon with an adjustable nut 26 screwing on an extension of the member 23. The tool may be retracted from the work by a handle 29 operating, through links 30, 31, a finger 32 engaging the driving-pulley 33, and the rockable member 14 may then be swung to carrv the tool clear of the work, the driving-belt 39 thus becoming slackened and rotation of the tool ceasing. The rockable member is locked out of position by the weighted arm 35 operated by a link 34; the movement of the member, when returnecl to position by a handle 36, is limited by its contact with an adjustable bumper 37. A gauge, Fig. 2, is provided for testing the work, and comprises a lever, pivoted at 51 to a vertically adjustable arm 49 pivotally carried by a horizontally swinging arm 48, the short arm 52 of the lever being adapted to be brought into contact with the work and the long arm 53 to be read at an index 54. The workholder is located in a pan 11 to retain abrasive and liquid.
GB944318A 1918-06-08 1918-06-08 Method of and Means for Grinding Lenses. Expired GB127971A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR490377D FR490377A (en) 1918-06-08 1918-06-05 Method and device for cutting optical glasses
GB944318A GB127971A (en) 1918-06-08 1918-06-08 Method of and Means for Grinding Lenses.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB944318A GB127971A (en) 1918-06-08 1918-06-08 Method of and Means for Grinding Lenses.

Publications (1)

Publication Number Publication Date
GB127971A true GB127971A (en) 1919-06-10

Family

ID=32343750

Family Applications (1)

Application Number Title Priority Date Filing Date
GB944318A Expired GB127971A (en) 1918-06-08 1918-06-08 Method of and Means for Grinding Lenses.

Country Status (2)

Country Link
FR (1) FR490377A (en)
GB (1) GB127971A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007099403A2 (en) * 2005-12-30 2007-09-07 Essilor International (Compagnie Générale d'Optique) Polishing machine comprising a work chamber and a platform
US10549321B2 (en) * 2014-12-08 2020-02-04 Novartis Ag Method and device for cleaning deposited material from a molding surface of a mold for forming ophthalmic lenses

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007099403A2 (en) * 2005-12-30 2007-09-07 Essilor International (Compagnie Générale d'Optique) Polishing machine comprising a work chamber and a platform
WO2007099403A3 (en) * 2005-12-30 2007-12-21 Essilor Int Polishing machine comprising a work chamber and a platform
US7591710B2 (en) 2005-12-30 2009-09-22 Essilor International (Compagnie Generale D'optique) Polishing machine comprising a work chamber and a platform
US7976359B2 (en) 2005-12-30 2011-07-12 Essilor International (Compagnie Generale D'optique) Polishing machine comprising a work chamber and a platform
AU2006339318B2 (en) * 2005-12-30 2011-10-13 Essilor International Polishing machine comprising a work chamber and a platform
US10549321B2 (en) * 2014-12-08 2020-02-04 Novartis Ag Method and device for cleaning deposited material from a molding surface of a mold for forming ophthalmic lenses

Also Published As

Publication number Publication date
FR490377A (en) 1919-04-19

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