GB1162504A - Improvements in the Control of Hydraulic Presses. - Google Patents
Improvements in the Control of Hydraulic Presses.Info
- Publication number
- GB1162504A GB1162504A GB56679/66A GB5667966A GB1162504A GB 1162504 A GB1162504 A GB 1162504A GB 56679/66 A GB56679/66 A GB 56679/66A GB 5667966 A GB5667966 A GB 5667966A GB 1162504 A GB1162504 A GB 1162504A
- Authority
- GB
- United Kingdom
- Prior art keywords
- press
- screen
- valve
- piston
- dec
- 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
- B30B15/22—Control arrangements for fluid-driven presses controlling the degree of pressure applied by the ram during the pressing stroke
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Press Drives And Press Lines (AREA)
- Control Of Presses (AREA)
Abstract
1,162,504. Hydraulic presses. ALLMANNA SVENSKA ELEKTRISKA A.B. 19 Dec., 1966 [20 Dec., 1965], No. 56679/66. Heading B5F. [Also in Division G3] Means for controlling the pressure in an hydraulic press comprises a ray source 12, a ray-sensitive device 13, and a screen 11 movable between the ray source 12 and device 13 under the influence of one of the main movable parts of the press. As shown, the screen 11 is secured to a lower piston 4 of the press, this piston 4 moving in a cylinder 2, the outflow from which is governed by a valve 18. Valve 18 is controlled by an auxiliary hydraulic system 17 including a valve 16 having a solenoid 15 connected through an amplifier 14 to the device 13. As seen in Fig. 2, the device 13 may comprise a large number of separate photo-cell units (21) and the screen 11 may be made of paper, the edge (22) of which is shaped to produce the desired changes in pressure. The press also includes an upper piston 3, a liquid-filled pressure chamber 5 and a rubber diaphragm 6 for shaping a workpiece 7 over a stationary shaping member 8.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE16452/65A SE322193B (en) | 1965-12-20 | 1965-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1162504A true GB1162504A (en) | 1969-08-27 |
Family
ID=20302263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB56679/66A Expired GB1162504A (en) | 1965-12-20 | 1966-12-19 | Improvements in the Control of Hydraulic Presses. |
Country Status (5)
Country | Link |
---|---|
US (1) | US3430471A (en) |
DE (1) | DE1577158C3 (en) |
FR (1) | FR1504330A (en) |
GB (1) | GB1162504A (en) |
SE (1) | SE322193B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980002239A1 (en) * | 1979-04-17 | 1980-10-30 | Saab Scania Ab | An arrangement for presses |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6631630B1 (en) * | 2000-09-22 | 2003-10-14 | Board Of Trustees Of Michigan State University | Hydroforming of composite materials |
FR3031055B1 (en) * | 2014-12-29 | 2017-01-27 | Adm28 S Ar L | ELECTRO-HYDROFORMING DEVICE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1818103A (en) * | 1926-04-03 | 1931-08-11 | Sperry Gyroscope Co Inc | Automatic pilot |
US2126887A (en) * | 1935-07-05 | 1938-08-16 | Sperry Gyroscope Co Inc | Positional control system |
US2783728A (en) * | 1951-09-12 | 1957-03-05 | Lake Erie Engineering Corp | Apparatus for pressing sheet metal shapes |
US3357218A (en) * | 1965-02-24 | 1967-12-12 | Cincinnati Milling Machine Co | Hydraulic press |
-
1965
- 1965-12-20 SE SE16452/65A patent/SE322193B/xx unknown
-
1966
- 1966-12-01 DE DE1577158A patent/DE1577158C3/en not_active Expired
- 1966-12-12 FR FR87052A patent/FR1504330A/en not_active Expired
- 1966-12-19 GB GB56679/66A patent/GB1162504A/en not_active Expired
- 1966-12-20 US US603314A patent/US3430471A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980002239A1 (en) * | 1979-04-17 | 1980-10-30 | Saab Scania Ab | An arrangement for presses |
Also Published As
Publication number | Publication date |
---|---|
US3430471A (en) | 1969-03-04 |
SE322193B (en) | 1970-04-06 |
DE1577158A1 (en) | 1970-03-19 |
DE1577158B2 (en) | 1973-03-15 |
FR1504330A (en) | 1967-12-01 |
DE1577158C3 (en) | 1973-10-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |