GB655306A - Lens grinding and/or polishing machine - Google Patents

Lens grinding and/or polishing machine

Info

Publication number
GB655306A
GB655306A GB2804347A GB2804347A GB655306A GB 655306 A GB655306 A GB 655306A GB 2804347 A GB2804347 A GB 2804347A GB 2804347 A GB2804347 A GB 2804347A GB 655306 A GB655306 A GB 655306A
Authority
GB
United Kingdom
Prior art keywords
lens
grinding
crank
bracket
shaft
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
GB2804347A
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.)
HENRY MEENS
Wiseman & Co Lens Manufac
Original Assignee
HENRY MEENS
Wiseman & Co Lens Manufac
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 HENRY MEENS, Wiseman & Co Lens Manufac filed Critical HENRY MEENS
Priority to GB2804347A priority Critical patent/GB655306A/en
Publication of GB655306A publication Critical patent/GB655306A/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

Abstract

655,306. Grinding and polishing lenses. WISEMAN & CO. (LENS MANUFACTURERS), Ltd., and MEENS, H. Oct. 20, 1947, No. 28043. [Class 60] A lens grinding and/or polishing machine has at least two lens carriers A mounted for rotation or angular oscillation about a common axis and each adapted to support a number of lens blanks, and a number of coupled tool holders H pivotally suspended from a common bracket 2 to swing in unison about their pivots and each associated with a carrier, means being provided to impart a reciprocatory movement to the bracket for varying the range of the stroke of the tool holders and means also being provided for imparting an oscillatory motion to the linkage 13 coupling the tool holders. The latter are coupled by a connecting rod F with a crank-pin E which rotates about a shaft 17 mounted in a rotating eccentric 18. The bracket 2 is pivotally connected at 3 with an arm 20 reciprocated by an eccentric 22 driven in timed relation with the crank E. The ratio of the throws of the eccentrics 18 and 22 and their relative speeds of rotation may be varied. The tools. which are connected to their holders by universal joints and verticallyadjustable rods 7, are subjected to pressure by means of an adjustably-positioned weight 5 on a spring. The carriers are partly immersed in a bath of grinding or polishing medium and are rotated by a shaft B the speed of which is determined by the number of lenses mounted on each carrier and the rotational speed of the crank-pin 17. The eccentric 18 may not be used. In a modification, sector-shaped carriers mounted on a pivot coaxial with the shaft B receive an angular oscillation from the latter through the medium of a cam.
GB2804347A 1947-10-20 1947-10-20 Lens grinding and/or polishing machine Expired GB655306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2804347A GB655306A (en) 1947-10-20 1947-10-20 Lens grinding and/or polishing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2804347A GB655306A (en) 1947-10-20 1947-10-20 Lens grinding and/or polishing machine

Publications (1)

Publication Number Publication Date
GB655306A true GB655306A (en) 1951-07-18

Family

ID=10269341

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2804347A Expired GB655306A (en) 1947-10-20 1947-10-20 Lens grinding and/or polishing machine

Country Status (1)

Country Link
GB (1) GB655306A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3156073A (en) * 1963-01-15 1964-11-10 Ray H Strasbaugh Irregular, non-repetitive, closed-loop surfacing mechanism
DE1223714B (en) * 1964-06-20 1966-08-25 Eugen Stratemeyer G M B H & Co Device for the oscillating axial displacement of a drum-shaped, rotating workpiece carrier for toric lenses
DE1228159B (en) * 1959-04-07 1966-11-03 Lunetiers Cottet Soc D Device for fine grinding of pre-machined lenses
US4573289A (en) * 1982-07-10 1986-03-04 Supfina Maschinenfabrik Hentzen Gmbh & Co Kg Apparatus for superfinishing bearing rollers
DE3433009A1 (en) * 1984-09-07 1986-03-20 Siemens AG, 1000 Berlin und 8000 München Device for the flat lapping or surface grinding of workpieces

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228159B (en) * 1959-04-07 1966-11-03 Lunetiers Cottet Soc D Device for fine grinding of pre-machined lenses
US3156073A (en) * 1963-01-15 1964-11-10 Ray H Strasbaugh Irregular, non-repetitive, closed-loop surfacing mechanism
DE1223714B (en) * 1964-06-20 1966-08-25 Eugen Stratemeyer G M B H & Co Device for the oscillating axial displacement of a drum-shaped, rotating workpiece carrier for toric lenses
US4573289A (en) * 1982-07-10 1986-03-04 Supfina Maschinenfabrik Hentzen Gmbh & Co Kg Apparatus for superfinishing bearing rollers
DE3433009A1 (en) * 1984-09-07 1986-03-20 Siemens AG, 1000 Berlin und 8000 München Device for the flat lapping or surface grinding of workpieces

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