GB292900A - Lens grinding and polishing machine - Google Patents

Lens grinding and polishing machine

Info

Publication number
GB292900A
GB292900A GB31686/27A GB3168627A GB292900A GB 292900 A GB292900 A GB 292900A GB 31686/27 A GB31686/27 A GB 31686/27A GB 3168627 A GB3168627 A GB 3168627A GB 292900 A GB292900 A GB 292900A
Authority
GB
United Kingdom
Prior art keywords
tools
lenses
grinding
shaft
polishing
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
GB31686/27A
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.)
IGNATZ GEORGE VETTER
Original Assignee
IGNATZ GEORGE VETTER
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 IGNATZ GEORGE VETTER filed Critical IGNATZ GEORGE VETTER
Publication of GB292900A publication Critical patent/GB292900A/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
    • B24B13/023—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 for grinding several lenses simultaneously

Landscapes

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

Abstract

292,900. Vetter, I. G. June 25, 1927, [Convention date]. Balls, shaping and surfacing; lenses, grinding and polishing.- A machine for grinding and polishing lenses consists of a lower bowl-shaped tool 6 mounted eccentrically on a rotating shaft 3, and an upper tool 15 rotatable with, and rockable relatively to a shaft 10, a ball-shaped member 17, having lenses 18 secured thereon, being placed between the tools, The movements of the member 17 caused by the movements of the tools, which rotate in opposite directions are retarded by a brake consisting of a felt facing 24 pressed up to the member by an arm 21 on a spindle 20, which carries a weighted arm 25. Weights may be applied to the shaft 10 to give the required pressure of the tools on the work.
GB31686/27A 1927-06-25 1927-11-24 Lens grinding and polishing machine Expired GB292900A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US481844XA 1927-06-25 1927-06-25
US292900XA 1927-06-25 1927-06-25
US201354A US1811219A (en) 1927-06-25 1927-06-25 Lens grinding and polishing machine

Publications (1)

Publication Number Publication Date
GB292900A true GB292900A (en) 1928-08-02

Family

ID=27363441

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31686/27A Expired GB292900A (en) 1927-06-25 1927-11-24 Lens grinding and polishing machine

Country Status (2)

Country Link
US (1) US1811219A (en)
GB (1) GB292900A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426925A (en) * 1942-12-10 1947-09-02 Micromatic Hone Corp Ball honing device
US2686391A (en) * 1951-06-11 1954-08-17 Mitchel Tyler Company Lens grinding apparatus

Also Published As

Publication number Publication date
US1811219A (en) 1931-06-23

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