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 likeInfo
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
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.
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)
| 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 |
-
1942
- 1942-06-24 GB GB866642A patent/GB553895A/en not_active Expired
Cited By (2)
| 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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