GB678387A - Improvements relating to cushioning devices for use in connection with power presses - Google Patents
Improvements relating to cushioning devices for use in connection with power pressesInfo
- Publication number
- GB678387A GB678387A GB3123649A GB3123649A GB678387A GB 678387 A GB678387 A GB 678387A GB 3123649 A GB3123649 A GB 3123649A GB 3123649 A GB3123649 A GB 3123649A GB 678387 A GB678387 A GB 678387A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inner cylinder
- cylinder
- piston rod
- piston
- connection
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/02—Die-cushions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
- Presses And Accessory Devices Thereof (AREA)
- Fluid-Damping Devices (AREA)
Abstract
678,387. Pneumatic dashpots. FISHER & LUDLOW, Ltd. Dec. 15, 1950 [Dec. 6, 1949], No. 31236/49. Class 108(iii) A cushioning device for use with power presses comprises a fixed outer cylinder 14, and an inner cylinder 16 having one end 23 formed as a piston, and a piston rod 19 fixed to the closed end of the outer cylinder 14 and carrying a piston 22 working within the inner cylinder 16, the working spaces of the inner and outer cylinders being connected by a passage 21 through the piston rod 19, and the space A between the two pistons 22, 23 being in communication with atmosphere. The lower die 11 of the press is carried by the closed end 18 of the inner cylinder 16. Facings 40 are provided on the periphery of the inner cylinder 16 to provide an annular passage between the cylinders 14, 16, through which air can pass (via holes 38) between atmosphere and the space A. An inspection hole is provided at 33 and a safety valve at 34. A connection is provided at 31 with a source of compressed air. The device is secured to the base 10 of the press by bolts at 36. In a modification, the bolts are replaced by an extension of the piston rod 19 which passes through a gland in the cylinder end 18, and is rigid with the base 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3123649A GB678387A (en) | 1949-12-06 | 1949-12-06 | Improvements relating to cushioning devices for use in connection with power presses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3123649A GB678387A (en) | 1949-12-06 | 1949-12-06 | Improvements relating to cushioning devices for use in connection with power presses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB678387A true GB678387A (en) | 1952-09-03 |
Family
ID=10320083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3123649A Expired GB678387A (en) | 1949-12-06 | 1949-12-06 | Improvements relating to cushioning devices for use in connection with power presses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB678387A (en) |
-
1949
- 1949-12-06 GB GB3123649A patent/GB678387A/en not_active Expired
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