GB660617A - Improvements in and relating to potters' lathes and chucks - Google Patents
Improvements in and relating to potters' lathes and chucksInfo
- Publication number
- GB660617A GB660617A GB872049A GB872049A GB660617A GB 660617 A GB660617 A GB 660617A GB 872049 A GB872049 A GB 872049A GB 872049 A GB872049 A GB 872049A GB 660617 A GB660617 A GB 660617A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chuck
- workpiece
- vacuum
- disc
- band
- 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
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/02—Producing shaped prefabricated articles from the material by turning or jiggering in moulds or moulding surfaces on rotatable supports
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
660,617. Chucks. MALKIN & CO., Ltd., F., ABBERLEY, M. W., and ELLIS, A. G. March 30, 1950 [March 31, 1949], No. 8720/49. Class 83 (iii). [Also in Group XXIII] A chuck for a potters' lathe comprises discs 23, 41, fixed on the chuck spindle 12 for locating a workpiece C, the disc 41 having a rubber band 44 which is expanded radially to grip the workpiece by means of slotted segmental weights 42, carried in slots in the disc 41, when the chuck is rotated at speed. The band 44 is secured to the disc 41 by means of adhesive and clamping members 45. The chuck spindle is provided with a vacuum duct 25 and port 26a communicating with a corresponding duct in the lathe spindle leading to a vacuum pump. The workpiece is located on the chuck at first by a light vacuum action, but when the band 44 is expanded to seal the inside of the workpiece, the vacuum action is increased. The vacuum control mechanism is the same as that described in Specification 660,616, [Group XXIII]. Specification 654,306, [Group X], also is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB872049A GB660617A (en) | 1949-03-31 | 1949-03-31 | Improvements in and relating to potters' lathes and chucks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB872049A GB660617A (en) | 1949-03-31 | 1949-03-31 | Improvements in and relating to potters' lathes and chucks |
Publications (1)
Publication Number | Publication Date |
---|---|
GB660617A true GB660617A (en) | 1951-11-07 |
Family
ID=9857939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB872049A Expired GB660617A (en) | 1949-03-31 | 1949-03-31 | Improvements in and relating to potters' lathes and chucks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB660617A (en) |
-
1949
- 1949-03-31 GB GB872049A patent/GB660617A/en not_active Expired
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