FR2116127A5 - - Google Patents

Info

Publication number
FR2116127A5
FR2116127A5 FR7142572A FR7142572A FR2116127A5 FR 2116127 A5 FR2116127 A5 FR 2116127A5 FR 7142572 A FR7142572 A FR 7142572A FR 7142572 A FR7142572 A FR 7142572A FR 2116127 A5 FR2116127 A5 FR 2116127A5
Authority
FR
France
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
FR7142572A
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.)
Autoflow Engineering Ltd
Original Assignee
Autoflow Engineering 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 GB5656070A external-priority patent/GB1387399A/en
Application filed by Autoflow Engineering Ltd filed Critical Autoflow Engineering Ltd
Application granted granted Critical
Publication of FR2116127A5 publication Critical patent/FR2116127A5/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/188—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by special applications and not provided for in the relevant subclasses, (e.g. making dies, filament winding)
    • 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
    • B24B13/04—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 involving grinding wheels controlled by gearing
    • B24B13/043—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 involving grinding wheels controlled by gearing using cup-type grinding wheels
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/33—Director till display
    • G05B2219/33268—D-A, A-D
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/41—Servomotor, servo controller till figures
    • G05B2219/41477—Servo loop with analog position sensor for continuous path control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/48—Servo-type converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Feedback Control In General (AREA)
FR7142572A 1970-11-27 1971-11-26 Expired FR2116127A5 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5656070A GB1387399A (en) 1970-11-27 1970-11-27 Lens forming machine with digital to analogue converter
US20174771A 1971-11-24 1971-11-24

Publications (1)

Publication Number Publication Date
FR2116127A5 true FR2116127A5 (fr) 1972-07-07

Family

ID=26267622

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7142572A Expired FR2116127A5 (fr) 1970-11-27 1971-11-26

Country Status (2)

Country Link
US (1) US3790875A (fr)
FR (1) FR2116127A5 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528748A1 (fr) * 1982-06-18 1983-12-23 Essilor Int Machine pour usiner des surfaces courbes
FR2570312A1 (fr) * 1984-09-14 1986-03-21 Fabrications Optiques Et Machine pour generer des surfaces spheriques ou toriques, concaves ou convexes sur des verres optiques
EP0176894A2 (fr) * 1984-10-05 1986-04-09 Robert S. Craxton Fabrication d'une lentille torique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936713A (en) * 1974-04-08 1976-02-03 Hunkar Laboratories, Inc. Machine control circuit
US5217335A (en) * 1990-04-24 1993-06-08 National Optronics, Inc. Plastic lens generator and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB863125A (en) * 1956-11-15 1961-03-15 Inductosyn Ltd Numerically controlled curve interpolating machine
US3136933A (en) * 1960-02-23 1964-06-09 Whitemore Gerald Interpolating mechanism for the automatic control of machine tools

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528748A1 (fr) * 1982-06-18 1983-12-23 Essilor Int Machine pour usiner des surfaces courbes
FR2570312A1 (fr) * 1984-09-14 1986-03-21 Fabrications Optiques Et Machine pour generer des surfaces spheriques ou toriques, concaves ou convexes sur des verres optiques
EP0176460A1 (fr) * 1984-09-14 1986-04-02 ETUDES ET FABRICATIONS OPTIQUES - E.F.O.P., Société Anonyme dite: Machine pour générer des surfaces sphériques ou toriques, concaves ou convexes sur des verres optiques
EP0176894A2 (fr) * 1984-10-05 1986-04-09 Robert S. Craxton Fabrication d'une lentille torique
EP0176894A3 (en) * 1984-10-05 1988-07-20 Robert S. Craxton Toric lens generating

Also Published As

Publication number Publication date
US3790875A (en) 1974-02-05

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Legal Events

Date Code Title Description
ST Notification of lapse