GB1369775A - Presses - Google Patents
PressesInfo
- Publication number
- GB1369775A GB1369775A GB1258473A GB1258473A GB1369775A GB 1369775 A GB1369775 A GB 1369775A GB 1258473 A GB1258473 A GB 1258473A GB 1258473 A GB1258473 A GB 1258473A GB 1369775 A GB1369775 A GB 1369775A
- Authority
- GB
- United Kingdom
- Prior art keywords
- platen
- plate
- plunger
- powder
- fluid
- 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
- B30B15/06—Platens or press rams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
- B30B11/04—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with a fixed mould
Abstract
1369775 Compression moulding AE & CI Ltd 1.5 March 1973 [29 March 1972] 12584/73 Heading B5A In a press platen for compression moulding a plurality of articles, e.g. explosives and pharmaceuticals from powders, comprising plungers 46 which extend from the platen into dies (not shown) are engaged by pistons 38 sliding in bores 32 which are connected to a source 34 of fluid under pressure and have drain connections 36, fluid passing to the drain is prevented from reaching each plunger by an impervious tube 37 surrounding the plunger in the region of the chain connection and by a tubular skirt 40 on the piston surrounding the tube 37. The skirt is perforated at 42 for fluid between it and the tube 37 to escape to the drain 72. Relatively narrow portions 50 of the plungers 46 pass through a retaining plate 56 attached to the platen and through a stripper plate 60 slidably connected hollow bolts 63 attached to the platen and biased away from the platen by springs 64. The narrow portion 50a (Fig. 2, not shown) of the plunger 46 may be a separate member having an enlarged head (76) for retention by the plate (56a). In use an assembly (Fig. 6, not shown) of a base-plate (88), an apertured plate (80) accommodation sleeves filled with powder to be compacted, and a cover plate (84) having bores for plunger portions 50 to pass through, is placed on the lower platen of a press and the lower platen is raised. The cover plate (84) engages and raises the stripper plate 60 and the plungers engage the powder and are forced upwards, displacing fluid from chamber 34 into the chamber of a control piston (not shown). When the control piston. reaches the end of its travel, full pressure is applied to the powder to compact it.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA722167A ZA722167B (en) | 1972-03-29 | 1972-03-29 | Improvements in presses |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1369775A true GB1369775A (en) | 1974-10-09 |
Family
ID=25564697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1258473A Expired GB1369775A (en) | 1972-03-29 | 1973-03-15 | Presses |
Country Status (12)
Country | Link |
---|---|
US (1) | US3827845A (en) |
AT (1) | AT323561B (en) |
AU (1) | AU458529B2 (en) |
BE (1) | BE797548A (en) |
CA (1) | CA962119A (en) |
CH (1) | CH566864A5 (en) |
DE (1) | DE2315029A1 (en) |
FR (1) | FR2178043B1 (en) |
GB (1) | GB1369775A (en) |
IT (1) | IT977539B (en) |
ZA (1) | ZA722167B (en) |
ZM (1) | ZM4273A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2490515B1 (en) * | 1980-09-22 | 1982-09-03 | Alliages Frittes Sa | |
CN100513986C (en) * | 2006-08-01 | 2009-07-15 | 杭州强立机械有限公司 | Special pressure for industrial detonating cap and method for compressing detonating cap explosive |
CN104610001B (en) * | 2015-01-12 | 2017-11-03 | 福建海峡科化股份有限公司 | A kind of combined type delay element process units and production method |
CN110375601B (en) * | 2019-08-28 | 2022-02-01 | 雅化集团绵阳实业有限公司 | High-temperature-resistant large-resistance automatic failure detonator and manufacturing process thereof |
CN111592438B (en) * | 2020-06-02 | 2021-08-17 | 雅化集团绵阳实业有限公司 | Disc single-shot detonator explosive pressing device and using method thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2209404A (en) * | 1937-07-06 | 1940-07-30 | Hydraulics Inc | Apparatus for the manufacture of hollow and indented dry pressed ceramic ware |
US2667679A (en) * | 1949-06-01 | 1954-02-02 | Frederick H Jackman | Apparatus for molding building blocks |
US2627086A (en) * | 1949-09-17 | 1953-02-03 | Baker Brothers Inc | Molding machine |
US3379120A (en) * | 1966-12-07 | 1968-04-23 | Harry C. Fogle | Bun molding apparatus |
-
1972
- 1972-03-29 ZA ZA722167A patent/ZA722167B/en unknown
-
1973
- 1973-02-23 AU AU52566/73A patent/AU458529B2/en not_active Expired
- 1973-02-23 CA CA164,610A patent/CA962119A/en not_active Expired
- 1973-02-26 US US00336077A patent/US3827845A/en not_active Expired - Lifetime
- 1973-02-27 IT IT48490/73A patent/IT977539B/en active
- 1973-03-15 GB GB1258473A patent/GB1369775A/en not_active Expired
- 1973-03-23 CH CH426773A patent/CH566864A5/xx not_active IP Right Cessation
- 1973-03-26 DE DE2315029A patent/DE2315029A1/en active Pending
- 1973-03-27 FR FR7310926A patent/FR2178043B1/fr not_active Expired
- 1973-03-29 BE BE129458A patent/BE797548A/en unknown
- 1973-03-29 AT AT279773A patent/AT323561B/en not_active IP Right Cessation
-
1974
- 1974-03-08 ZM ZM42/73A patent/ZM4273A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU458529B2 (en) | 1975-02-27 |
CA962119A (en) | 1975-02-04 |
ZM4273A1 (en) | 1974-12-20 |
BE797548A (en) | 1973-07-16 |
ZA722167B (en) | 1973-11-28 |
AU5256673A (en) | 1974-08-29 |
US3827845A (en) | 1974-08-06 |
IT977539B (en) | 1974-09-20 |
DE2315029A1 (en) | 1973-10-18 |
CH566864A5 (en) | 1975-09-30 |
FR2178043A1 (en) | 1973-11-09 |
AT323561B (en) | 1975-07-25 |
FR2178043B1 (en) | 1975-04-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |