GB234124A - Improvements in and relating to hydraulic mechanism for reciprocating grinding and other machine tables - Google Patents
Improvements in and relating to hydraulic mechanism for reciprocating grinding and other machine tablesInfo
- Publication number
- GB234124A GB234124A GB12660/25A GB1266025A GB234124A GB 234124 A GB234124 A GB 234124A GB 12660/25 A GB12660/25 A GB 12660/25A GB 1266025 A GB1266025 A GB 1266025A GB 234124 A GB234124 A GB 234124A
- Authority
- GB
- United Kingdom
- Prior art keywords
- engagement
- pawl
- valve
- moved out
- move
- 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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/06—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by liquid or gas pressure only
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
234,124. Fortuna-Werke Spezialmaschinenfabrik Ges. May 15, 1924, [Convention date]. Hydraulic transmission of power; liquid-pressure engines. - In hydraulic mechanism for reciprocating the tables of grinding and other machines, the piston valve 8, Fig. 3, of the hydraulic cylinder is operated by an arm 18 on a hollow shaft 19, the valve being caused to move slowly for the end part of its travel by liquid trapped in one end of its valve cylinder and escaping to the other end through a duct 16 and throttling member 17. The shaft 19 is normally locked by a pawl 22 or 23, Fig. 2, and an operating lever 26, Fig. 4, is also locked by the engagement of a double pawl 38 with a fixed member 40. The machine table has stops 34, 35 which act to move the pawl 38 out of engagement and then to move the lever 26 and spindle 25. A spring 30 or 31 is thereby put under tension, the pawl 22 or 23 is moved out of engagement and the spring then moves the shaft 19 to operate the valve 8. When hand control is desired, the pawl 38 is moved out of engagement by a handle 41, or the pawls 22, 23, 38 are moved out of engagement by hand-operated cam discs, the throttling member 17 being simultaneously fully opened.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE234124X | 1924-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB234124A true GB234124A (en) | 1926-03-04 |
Family
ID=5889801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12660/25A Expired GB234124A (en) | 1924-05-15 | 1925-05-15 | Improvements in and relating to hydraulic mechanism for reciprocating grinding and other machine tables |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB234124A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2563219A (en) * | 1945-08-13 | 1951-08-07 | Hobson Ltd H M | Fluid control valve |
| US2706467A (en) * | 1949-01-04 | 1955-04-19 | Jones & Shipman A A Ltd | Hydraulic drive and control mechanism for machine tools |
-
1925
- 1925-05-15 GB GB12660/25A patent/GB234124A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2563219A (en) * | 1945-08-13 | 1951-08-07 | Hobson Ltd H M | Fluid control valve |
| US2706467A (en) * | 1949-01-04 | 1955-04-19 | Jones & Shipman A A Ltd | Hydraulic drive and control mechanism for machine tools |
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