GB440305A - Improvements in hydraulic transmission means - Google Patents
Improvements in hydraulic transmission meansInfo
- Publication number
- GB440305A GB440305A GB12207/35A GB1220735A GB440305A GB 440305 A GB440305 A GB 440305A GB 12207/35 A GB12207/35 A GB 12207/35A GB 1220735 A GB1220735 A GB 1220735A GB 440305 A GB440305 A GB 440305A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- ram
- valve
- rams
- cylinder
- 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
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/165—Control arrangements for fluid-driven presses for pneumatically-hydraulically driven presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
440,305. Hydraulic transmission of power. SCIAKY, D., 13, Rue Charles Fourier, Paris. April 23, 1935, No. 12207. Convention date, April 20, 1934. [Class 69 (ii)] In a pressure-transmitting system including low and high pressure hydraulic rams, both rams are moved by pistons acted on by compressed gas, control means for the gas being provided so that the high pressure ram is actuated on the completion of the work of the low pressure ram. In the form shown in Fig. 1, a ram 11 actuated by compressed air acting on a piston 10 forces liquid from a cylinder 13 through a cylinder 16 to the working cylinder 19. When there is a predetermined pressure in the liquid system, it acts through a member 120 to operate a valve 5, so that compressed air depresses a piston 14, and a smaller ram 15 forces liquid to the working cylinder at a higher pressure. In a modification, the valve 5 is replaced by a valve 28, 29, Fig. 2, acted on by a spring 33 and a pressure diaphragm 31. The Specification as open to inspection under Sect. 91 comprises also statements that the rams 11, 15 may be electromagnetically operated, and that the high and low pressure pneumatic cylinders may be combined. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE440305X | 1934-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB440305A true GB440305A (en) | 1935-12-24 |
Family
ID=6509216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12207/35A Expired GB440305A (en) | 1934-04-20 | 1935-04-23 | Improvements in hydraulic transmission means |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB440305A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2827766A (en) * | 1954-12-09 | 1958-03-25 | Lionel E Weiss | Hydro-pneumatic press apparatus |
| FR2607199A1 (en) * | 1986-11-25 | 1988-05-27 | Rexroth Mannesmann Gmbh | DEVICE FOR PRODUCING HIGH HYDRAULIC PRESSURES |
-
1935
- 1935-04-23 GB GB12207/35A patent/GB440305A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2827766A (en) * | 1954-12-09 | 1958-03-25 | Lionel E Weiss | Hydro-pneumatic press apparatus |
| FR2607199A1 (en) * | 1986-11-25 | 1988-05-27 | Rexroth Mannesmann Gmbh | DEVICE FOR PRODUCING HIGH HYDRAULIC PRESSURES |
| GB2198081A (en) * | 1986-11-25 | 1988-06-08 | Rexroth Mannesmann Gmbh | Arrangement for producing high hydraulic pressures |
| GB2198081B (en) * | 1986-11-25 | 1990-12-19 | Rexroth Mannesmann Gmbh | Arrangement for producing high hydraulic pressures |
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