FR537217A - Perfectionnements aux machines à meuler les lentilles - Google Patents

Perfectionnements aux machines à meuler les lentilles

Info

Publication number
FR537217A
FR537217A FR537217DA FR537217A FR 537217 A FR537217 A FR 537217A FR 537217D A FR537217D A FR 537217DA FR 537217 A FR537217 A FR 537217A
Authority
FR
France
Prior art keywords
grinding machines
lens grinding
lens
machines
machines improvements
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
Other languages
English (en)
Inventor
Malcolm Bentzon
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 GB23245/20A external-priority patent/GB172367A/en
Application filed filed Critical
Application granted granted Critical
Publication of FR537217A publication Critical patent/FR537217A/fr
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
    • 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
    • B24B13/0012—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor for multifocal lenses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
FR537217D 1920-08-07 1921-06-21 Perfectionnements aux machines à meuler les lentilles Expired FR537217A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB367021X 1920-08-07
GB537217X 1920-08-07
GB23245/20A GB172367A (en) 1920-08-07 1920-08-07 Improvements in machines for grinding lenses
US482438A US1575311A (en) 1920-08-07 1921-07-05 Machine for grinding lenses

Publications (1)

Publication Number Publication Date
FR537217A true FR537217A (fr) 1922-05-18

Family

ID=27448588

Family Applications (1)

Application Number Title Priority Date Filing Date
FR537217D Expired FR537217A (fr) 1920-08-07 1921-06-21 Perfectionnements aux machines à meuler les lentilles

Country Status (2)

Country Link
US (1) US1575311A (fr)
FR (1) FR537217A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424544A (en) * 1944-03-23 1947-07-29 Cory Corp Art of grinding annular surfaces

Also Published As

Publication number Publication date
US1575311A (en) 1926-03-02

Similar Documents

Publication Publication Date Title
FR534616A (fr) Machine à polir
FR537217A (fr) Perfectionnements aux machines à meuler les lentilles
FR535741A (fr) Machines à fraiser
FR533091A (fr) Machine à meuler
FR542532A (fr) Machine à broyer
FR515660A (fr) Machine à meuler
FR520689A (fr) Perfectionnements apportés aux machines à meuler
FR527621A (fr) Perfectionnements aux machines à creuser les fossés
FR23532E (fr) Machine à polir
FR527653A (fr) Perfectionnements aux machines à meuler
FR538580A (fr) Perfectionnements aux machines à meuler
FR528980A (fr) Machine à roder les soupapes
FR508602A (fr) Machine à polir
FR526864A (fr) Perfectionnements aux machines à meuler les billes
FR511637A (fr) Machines à meuler les rouleaux
FR556789A (fr) Perfectionnements aux machines à meuler
FR535418A (fr) Machine à polir
FR25462E (fr) Machine à polir
FR524055A (fr) Machine à fabriquer les tarauds
FR547840A (fr) Machine à poncer les moulures
FR496825A (fr) Perfectionnements aux machines à polir
FR560311A (fr) Perfectionnement aux lunettes
FR539973A (fr) Perfectionnements aux machines à travailler les cuirs
FR510794A (fr) Machine à régler à disques
FR529166A (fr) Appareil à mandriner