GB553895A - An improved method and means for the grinding and/or polishing of surfaces as of lenses, prisms and the like - Google Patents

An improved method and means for the grinding and/or polishing of surfaces as of lenses, prisms and the like

Info

Publication number
GB553895A
GB553895A GB866642A GB866642A GB553895A GB 553895 A GB553895 A GB 553895A GB 866642 A GB866642 A GB 866642A GB 866642 A GB866642 A GB 866642A GB 553895 A GB553895 A GB 553895A
Authority
GB
United Kingdom
Prior art keywords
spindles
grinding
pins
polishing
crank
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
GB866642A
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.)
AUGUSTUS THEODORE JORDAN
PERCY LEVER
Original Assignee
AUGUSTUS THEODORE JORDAN
PERCY LEVER
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 AUGUSTUS THEODORE JORDAN, PERCY LEVER filed Critical AUGUSTUS THEODORE JORDAN
Priority to GB866642A priority Critical patent/GB553895A/en
Publication of GB553895A publication Critical patent/GB553895A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/02Machines 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

Abstract

553,895. Grinding and polishing machines. JORDON, A. T., and LEVER, P. June 24, 1942, No. 8666. [Class 60] A machine for grinding or polishing the plane or curved surfaces of optical glass comprises rotary spindles each carrying a grinding &c. head, or a work holder, and means for traversing the spindles relatively to a non- rotary part carrying the work-holders, or grinding &c. heads, in two directions at right angles to one another and to the spindles at unrelated rates whereby a complex motion is effected which repeats only after many cycles. As shown, the machine comprises a number of spindles 12, Fig. 8, carried on brackets 11 pivoted on the two longitudinal members 10 of a carriage 5, Fig. 3, which rides on rollers 6 and is oscillated across the main frame by means of a crank 8. The brackets 11 have arms 13 linked by rods 14 each including a slotted plate engaged by a crank on a cross shaft. By these means the spindles, which are rotated from longitudinal shafts 18, 19, are oscillated in directions at right angles to each other and to themselves. Fig. 10 shows a work holder for a prism 49 which is gripped between jaws 40 formed with pins 53 co-operating with a bracket 50 secured to a main frame girder 3 and having hooks 52 engaging the pins 53. A clamping device 55 engages the pins and bears against pins 54 on the bracket. The prism is engaged by face members 42, 44, the latter being mounted on a spindle 43 having bores 46 for the reception of a locking pin 47. The lap 61 is carried by a crank 60 and may be driven round therewith or rotate thereon. In Fig. 11 workpieces are carried by holders 64 mounted on cranks 66 on the spindles and bear against stationary laps 65, rotation of the work being prevented by trunnions 67 engaging slotted arms 68. A similar arrangement may be employed for polishing spherical surfaces. One or both of the translational movements may be applied to the non-rotary parts.
GB866642A 1942-06-24 1942-06-24 An improved method and means for the grinding and/or polishing of surfaces as of lenses, prisms and the like Expired GB553895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB866642A GB553895A (en) 1942-06-24 1942-06-24 An improved method and means for the grinding and/or polishing of surfaces as of lenses, prisms and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB866642A GB553895A (en) 1942-06-24 1942-06-24 An improved method and means for the grinding and/or polishing of surfaces as of lenses, prisms and the like

Publications (1)

Publication Number Publication Date
GB553895A true GB553895A (en) 1943-06-09

Family

ID=9856876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB866642A Expired GB553895A (en) 1942-06-24 1942-06-24 An improved method and means for the grinding and/or polishing of surfaces as of lenses, prisms and the like

Country Status (1)

Country Link
GB (1) GB553895A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363349A (en) * 2000-04-04 2001-12-19 Tritek Optical Services Ltd Device for lens finishing
CN107639496A (en) * 2017-09-07 2018-01-30 天津津航技术物理研究所 A kind of processing of high angular accuracy infrared optics part and measuring method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363349A (en) * 2000-04-04 2001-12-19 Tritek Optical Services Ltd Device for lens finishing
CN107639496A (en) * 2017-09-07 2018-01-30 天津津航技术物理研究所 A kind of processing of high angular accuracy infrared optics part and measuring method

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