GB701750A - Improvements in devices for imparting predetermined cyclic displacements to a machine-tool member - Google Patents
Improvements in devices for imparting predetermined cyclic displacements to a machine-tool memberInfo
- Publication number
- GB701750A GB701750A GB691051A GB691051A GB701750A GB 701750 A GB701750 A GB 701750A GB 691051 A GB691051 A GB 691051A GB 691051 A GB691051 A GB 691051A GB 701750 A GB701750 A GB 701750A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve member
- piston
- cam
- carriage
- frame
- 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
- B24B17/00—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor
- B24B17/08—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor involving fluid transmission means only
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
701,750. Fluid pressure servomotor-control systems. COMPAGNIE GENERALE DE CONSTRUCTION DE LOCOMOTIVES (BATIGNOLLES-CHATILLON). March 22, 1951, No. 6910/51. Class 135. [Also in Group XXIII] A device for controlling cyclic displacements of a movable machine tool member, e.g. the carriage 2 of a grinding machine, relatively to the machine frame 1 comprises a piston 12 connected to the carriage by a rod 28 and controlled by a valve member 21 actuated by a feeler 13 co-operating with the periphery of a rotating cam 24 mounted on the frame 1. Pressure liquid is fed to chambers 15 and 18 on opposite sides of the piston by a pump 16 and the valve member controls leak from the chamber 15 via a passage 22 to a flexible pipe 23 leading to the sump 17. The valve member slides in the piston rod and movement of the valve member from its neutral position, i.e. a position in which the leakage is such that pressures on opposite sides of the piston are equal, is followed by the piston until the neutral position is again reached. The cam is rotated by a motor through a reduction gear. In another arrangement, the cam is mounted on the carriage 2 and the valve member slides in the frame 1. The cam may be in the form of a drum having a suitable groove for engagement by a lateral finger on the feeler.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB691051A GB701750A (en) | 1951-03-22 | 1951-03-22 | Improvements in devices for imparting predetermined cyclic displacements to a machine-tool member |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB691051A GB701750A (en) | 1951-03-22 | 1951-03-22 | Improvements in devices for imparting predetermined cyclic displacements to a machine-tool member |
Publications (1)
Publication Number | Publication Date |
---|---|
GB701750A true GB701750A (en) | 1953-12-30 |
Family
ID=9823056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB691051A Expired GB701750A (en) | 1951-03-22 | 1951-03-22 | Improvements in devices for imparting predetermined cyclic displacements to a machine-tool member |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB701750A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3079906A (en) * | 1960-02-03 | 1963-03-05 | Earl A Thompson | Automatic wheel dresser |
-
1951
- 1951-03-22 GB GB691051A patent/GB701750A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3079906A (en) * | 1960-02-03 | 1963-03-05 | Earl A Thompson | Automatic wheel dresser |
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