GB357702A - Improvements in or relating to presses for drawing sheet metal and the like - Google Patents
Improvements in or relating to presses for drawing sheet metal and the likeInfo
- Publication number
- GB357702A GB357702A GB2277730A GB2277730A GB357702A GB 357702 A GB357702 A GB 357702A GB 2277730 A GB2277730 A GB 2277730A GB 2277730 A GB2277730 A GB 2277730A GB 357702 A GB357702 A GB 357702A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hollow
- bed
- cylinders
- pistons
- press
- 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
- B21D24/04—Blank holders; Mounting means therefor
- B21D24/08—Pneumatically or hydraulically loaded blank holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Reciprocating Pumps (AREA)
Abstract
357,702. Cupping. RODE, F. J., 6500, West 65th Street, Chicago, U.S.A. July 29, 1930, No, 22777. [Class 83 (iv).] The draw ring -20 ofa cupping press is yieldingly supported by a pressure pad 23, which forces pistons 32 down into the tubular cylinders 29 thereby compressing the fluid (air) contained in the hollow 27 formed in the press bed. The hollow bed is supplied with pressure regulated fluid from an external pressure system. To prevent immediate return of the draw ring after the working stroke the pistons are provided with rods 57, Fig. 5 which connect with cylinders 60 moving down over fixed pistons 59 through which liquid 63 is drawn into the cylinders 60 and trapped there until released by a valve 66, Fig; 7, opened by cam and links from the same crank shaft. The liquid 63 lies in the bottom of the hollow press bed, and is available for drawing into the cylinder 60 and is then forced back into. the hollow bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2277730A GB357702A (en) | 1930-07-29 | 1930-07-29 | Improvements in or relating to presses for drawing sheet metal and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2277730A GB357702A (en) | 1930-07-29 | 1930-07-29 | Improvements in or relating to presses for drawing sheet metal and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB357702A true GB357702A (en) | 1931-10-01 |
Family
ID=10184904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2277730A Expired GB357702A (en) | 1930-07-29 | 1930-07-29 | Improvements in or relating to presses for drawing sheet metal and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB357702A (en) |
-
1930
- 1930-07-29 GB GB2277730A patent/GB357702A/en not_active Expired
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