GB626373A - Improvements in or relating to abrading machines and particularly to lens edging machines - Google Patents

Improvements in or relating to abrading machines and particularly to lens edging machines

Info

Publication number
GB626373A
GB626373A GB254947A GB254947A GB626373A GB 626373 A GB626373 A GB 626373A GB 254947 A GB254947 A GB 254947A GB 254947 A GB254947 A GB 254947A GB 626373 A GB626373 A GB 626373A
Authority
GB
United Kingdom
Prior art keywords
former
spindle
shaft
gears
edging
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
GB254947A
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.)
American Optical Corp
Original Assignee
American Optical Corp
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 American Optical Corp filed Critical American Optical Corp
Priority to GB254947A priority Critical patent/GB626373A/en
Publication of GB626373A publication Critical patent/GB626373A/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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms

Abstract

626,373. Edging lenses &c. ABBEY, A. (American Optical Co.). Jan. 27, 1947, No. 2549. [Class 60] A lens edging or like abrading machine in which a rotary spindle carrying the work and a former is movable towards and away from the grinding wheel, the movement being determined by the co-operation of the former with a contact shoe, is provided with a control device which automatically varies the speed of rotation of the work spindle in accordance with engagement and disengagement of the former with the contact shoe. The machine comprises an edging stone 12; a spindle 17 carrying the lens 14 and a former 16 is mounted in a swinging head 15 pivotally attached to the base 11. The edging stone spindle drives through chain and sprockets a back shaft which is connected through gears 25, 26 with a work drive shaft 27. The latter drives, through gears 30, 31, a shaft 32 on which are rotatably mounted gears 33, 34 meshing respectively with gears 41, 40 on a shaft 38 which, through further gearing, rotates the work spindle 17. A clutch member 37 slidably keyed on the shaft 32 is operated by a pivoted lever 42; a spring 54 normally holds the parts in slow speed position; energization of a solenoid 57 moves them to high speed position. The solenoid 57 is under control of a micro-switch 73 to which is actuated through a push rod 76, by the contact shoe 61 when this is engaged by the former 16. Thus, when a portion of the lens requiring no more grinding is in contact with the grinding wheel the engagement of the former with the contact shoe will actuate the micro-switch so that the work spindle rotation will be speeded up.
GB254947A 1947-01-27 1947-01-27 Improvements in or relating to abrading machines and particularly to lens edging machines Expired GB626373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB254947A GB626373A (en) 1947-01-27 1947-01-27 Improvements in or relating to abrading machines and particularly to lens edging machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB254947A GB626373A (en) 1947-01-27 1947-01-27 Improvements in or relating to abrading machines and particularly to lens edging machines

Publications (1)

Publication Number Publication Date
GB626373A true GB626373A (en) 1949-07-14

Family

ID=9741550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB254947A Expired GB626373A (en) 1947-01-27 1947-01-27 Improvements in or relating to abrading machines and particularly to lens edging machines

Country Status (1)

Country Link
GB (1) GB626373A (en)

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