GB1381675A - Coining presses - Google Patents
Coining pressesInfo
- Publication number
- GB1381675A GB1381675A GB3415572A GB3415572A GB1381675A GB 1381675 A GB1381675 A GB 1381675A GB 3415572 A GB3415572 A GB 3415572A GB 3415572 A GB3415572 A GB 3415572A GB 1381675 A GB1381675 A GB 1381675A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- plate
- holder
- collar plate
- compressed
- 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
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
- B44B5/02—Dies; Accessories
- B44B5/022—Devices for holding or supporting work
Landscapes
- Press Drives And Press Lines (AREA)
- Powder Metallurgy (AREA)
- Adornments (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
1381675 Coining TAYLOR & CHALLEN Ltd 11 July 1973 [21 July 1972 4 Nov 1972] 34155/72 and 50911/72 Heading B3Q A collar plate assembly for a coining press comprises a connection 17 for compressed-air which escapes upwards around the periphery of the collar plate 7 so as to resist the ingress into the assembly of powdered metal oxide broken from blanks coined in the collar plate. A pad 22 of foam rubber compressed between the plate 7 and a holder 14 for the lower die 13 expands on downward movement of the holder 14 and helps to produce a suction effect for drawing a blank into the base of the collar plate 7 and also prevents the ingress of powder. The plate is fixed by a ring 9 to one end of a sleeve 8 the other end of which is biased by springs 12, the sleeve being retained for limited movement in a casing 2 by end plates 4, 5. There is a plastics bearing 15 between the sleeve 8 and die-holder 14 which is pressed down against actuating mechanism (not shown), by plungers 16. Compressed-air from the connection 17 enters an annular duct 19 which is connected by radial passages 20 to a duct 21 in the ring 9 from which it escapes upwardly. The outer surface of sleeve 8 is dimpled to accommodate any powder that penetrates. Upward movement of the die 13 ejects the coin.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3415572A GB1381675A (en) | 1972-07-21 | 1972-07-21 | Coining presses |
DE19732336122 DE2336122A1 (en) | 1972-07-21 | 1973-07-16 | DEVICE FOR HOLDING THE WORKPIECES IN THE PRESSING PRESSES |
US380867A US3869893A (en) | 1972-07-21 | 1973-07-19 | Coining press |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3415572A GB1381675A (en) | 1972-07-21 | 1972-07-21 | Coining presses |
GB5091172 | 1972-11-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1381675A true GB1381675A (en) | 1975-01-22 |
Family
ID=26262179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3415572A Expired GB1381675A (en) | 1972-07-21 | 1972-07-21 | Coining presses |
Country Status (3)
Country | Link |
---|---|
US (1) | US3869893A (en) |
DE (1) | DE2336122A1 (en) |
GB (1) | GB1381675A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3243874A1 (en) * | 1982-11-26 | 1984-05-30 | Hoechst Ag, 6230 Frankfurt | PRESSURE AND LIFTING DEVICE |
GB9412007D0 (en) * | 1994-06-15 | 1994-08-03 | Rockwell International A S | Production of mineral fibres |
US6094961A (en) * | 1999-02-01 | 2000-08-01 | Crown Cork & Seal Technologies Corporation | Apparatus and method for necking container ends |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2442901A (en) * | 1945-08-09 | 1948-06-08 | Western Electric Co | Material working apparatus |
US2679175A (en) * | 1952-07-31 | 1954-05-25 | United States Steel Corp | Self-cleaning forging die |
-
1972
- 1972-07-21 GB GB3415572A patent/GB1381675A/en not_active Expired
-
1973
- 1973-07-16 DE DE19732336122 patent/DE2336122A1/en active Pending
- 1973-07-19 US US380867A patent/US3869893A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3869893A (en) | 1975-03-11 |
DE2336122A1 (en) | 1974-02-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |