GB553079A - A clamping device, for use particularly in clamping together two parts of a mould - Google Patents
A clamping device, for use particularly in clamping together two parts of a mouldInfo
- Publication number
- GB553079A GB553079A GB1630641A GB1630641A GB553079A GB 553079 A GB553079 A GB 553079A GB 1630641 A GB1630641 A GB 1630641A GB 1630641 A GB1630641 A GB 1630641A GB 553079 A GB553079 A GB 553079A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- flask
- bimetallic
- mould
- members
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/20—Opening, closing or clamping
- B29C33/202—Clamping means operating on closed or nearly closed mould parts, the clamping means being independently movable of the opening or closing means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Clamps And Clips (AREA)
Abstract
553,079. Clamps. LEADER, S. A. Dec. 17, 1941, No. 16306. [Class 44] [Also in Groups V, XIII and XVIII] A device for clamping together two parts of a mould, e.g. of a dental flask, comprises a bimetallic member composed of two metals having different coefficients of expansion rigidly joined together, the device being so arranged that as the temperature increases the member becomes distorted and exerts, directly or indirectly, an increasing pressure, tending to force together the two parts of the mould. The parts of the mould itself may serve as parts of the clamping device. In Figs. 1 and 2 the clamping device comprises two horizontal members 1, 2 joined by two bimetallic members 3, 4 each comprising two strips riveted together. A thumb screw 5 (or a vertically movable platform) holds together the two parts of a dental flask 6. The strip having the higher coefficient of expansion is on the outside, so that when the dental flask is heated the members 3, 4 bend as in Fig. 2. The pressure may be exerted on the flask indirectly through a rod &c. disposed between the flask and one of the members 1, 2. In modifications :- (a) one or more bimetallic wedges or pins are driven between the top of a flask and a wall of a rectangular frame in which the flask stands. The wedges &c. may be fixed to the frame. The two parts of the wedge or pin may be joined together at one or more places or over the whole of the contacting parts. (b) In a frame somewhat similar to that shown, the part 2 is the bimetallic member. (c) The bimetallic member is carried on the lower end of the screw 5. (d) Figs. 9 and 10. Two bimetallic pins 15 are inserted in the holes 18, provided for the reception of ordinary pins, in a standard dental flask.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1630641A GB553079A (en) | 1941-12-17 | 1941-12-17 | A clamping device, for use particularly in clamping together two parts of a mould |
| FR915602D FR915602A (en) | 1941-12-17 | 1945-10-08 | Clamping device intended to join the two parts of a mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1630641A GB553079A (en) | 1941-12-17 | 1941-12-17 | A clamping device, for use particularly in clamping together two parts of a mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB553079A true GB553079A (en) | 1943-05-06 |
Family
ID=10074918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1630641A Expired GB553079A (en) | 1941-12-17 | 1941-12-17 | A clamping device, for use particularly in clamping together two parts of a mould |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR915602A (en) |
| GB (1) | GB553079A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2455167A (en) * | 2007-09-04 | 2009-06-03 | Univ Malta | Bimetallic or bimaterial members and systems which exhibit negative Poisson's ratio |
| EP3569395A1 (en) * | 2018-05-17 | 2019-11-20 | Continental Reifen Deutschland GmbH | Method for vulcanizing a tyre, in particular a vehicle tyre, and vulcanization device |
-
1941
- 1941-12-17 GB GB1630641A patent/GB553079A/en not_active Expired
-
1945
- 1945-10-08 FR FR915602D patent/FR915602A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2455167A (en) * | 2007-09-04 | 2009-06-03 | Univ Malta | Bimetallic or bimaterial members and systems which exhibit negative Poisson's ratio |
| EP3569395A1 (en) * | 2018-05-17 | 2019-11-20 | Continental Reifen Deutschland GmbH | Method for vulcanizing a tyre, in particular a vehicle tyre, and vulcanization device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR915602A (en) | 1946-11-13 |
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