GB1586383A – Re-usable experimentation crucible
– Google Patents
GB1586383A – Re-usable experimentation crucible
– Google Patents
Re-usable experimentation crucible
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Publication number
GB1586383A
GB1586383A
GB17885/78A
GB1788578A
GB1586383A
GB 1586383 A
GB1586383 A
GB 1586383A
GB 17885/78 A
GB17885/78 A
GB 17885/78A
GB 1788578 A
GB1788578 A
GB 1788578A
GB 1586383 A
GB1586383 A
GB 1586383A
Authority
GB
United Kingdom
Prior art keywords
crucible
experimentation
usable
ring
stopper
Prior art date
1977-06-09
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
Application number
GB17885/78A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe dEtudes dAutomatisation de Regulation et dAppareils de Mesures SETARAM SAS
Original Assignee
Societe dEtudes dAutomatisation de Regulation et dAppareils de Mesures SETARAM SAS
Priority date (The priority date 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 date listed.)
1977-06-09
Filing date
1978-05-05
Publication date
1981-03-18
1978-05-05
Application filed by Societe dEtudes dAutomatisation de Regulation et dAppareils de Mesures SETARAM SAS
filed
Critical
Societe dEtudes dAutomatisation de Regulation et dAppareils de Mesures SETARAM SAS
1981-03-18
Publication of GB1586383A
publication
Critical
patent/GB1586383A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
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Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
B01L3/04—Crucibles
Description
PATENT SPECIFICATION
( 11) 1 586 383 ( 21) Application No 17885/78 ( 31) Convention Application No.
( 33) France (FR) ( 22) Filed 7718421 May 1978 ( 32) Filed 9 ( 44) Complete Specification Published 18 Mar 1981 ( 51) INT CL 3 F 27 B 14/00 ( 52) Index at Acceptance F 4 B 103 FG ( 54) RE-USABLE EXPERIMENTATION CRUCIBLE ( 71) We, SOCIETE D’ETUDES D’AUTOMATISATION, DE REGULATION ET D’APPAREILS DE MESURES, a Societe Anonyme organised and existing under the laws of France, of 101-103 Rue de Seze, Lyon, (Rhone) France, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:-
This invention relates to a re-usable experimentation crucible.
When making thermodynamic measurements, it is frequently necessary to experiment on substances subjected to high pressure and a high temperature, Generally, an experimentation crucible intended for this type of measurement must be in the form of a receptacle having thick walls able to withstand high pressures and have a cylindrical outer surface facilitating its introduction into a socket of a thermal fluxmeter with good thermal connection to the socket The purpose of the invention is to provide a crucible of this type comprising a sealed closure system which may be so arranged as to resistant to temperature and pressure but facilitate the recovery and re-use of the crucible after an experiment and may also comprise arrangements for pressurizing the inside of the crucible.
According to the invention, a re-usable experimentation crucible comprises a base and a cylindrical side wall surrounding an opening opposite said base, a support surface internally of the crucible and disposed adjacent to and directed towards the opening, a removable stopper supported and centered on the support surface, an annular groove located between the said support surface and the opening, and a ring of plastically deformable material engageable between the side wall of the crucible and the stopper, which ring may be forced in a direction towards the base of the crucible so as to deform and fill the annular groove and thereby ensure the sealed closure of the crucible.
After deformation, the ring forms a tight seal between the side wall of the crucible and the stopper Advantageously, adjacent the opening, the annular groove is defined by a step having a sharp edge, on which the material of the ring forms a pressureresistant anchorage.
In a particular embodiment, the stopper has two cylindrical ends of different diameters, connected by a central frustoconical part, the cylindrical part of larger diameter being supported on the said support surface whereas the frustoconical part is located opposite the bottom of the annular groove.
The frustoconical part pushes the ring towards the bottom of the groove when the latter is forced towards the base, and it then ensures the retention of the stopper by a wedge effect.
The recovery of the crucible can be achieved by selective chemical action or by mechanical destruction of the deformed ring, which remains accessible from outside even when it is pushed to the bottom of the annular groove.
If desired, a pressurization tube can pass through the bottom of the crucible which tube, depending on the position in which the crucible is to be used, can open out in the vicinity of the stopper or in the vicinity of the cylindrical side wall.
The invention will now be further described, by way of example, with reference to the accompanying drawing, in which:Figure 1 is a sectional view of a crucible formed according to the invention, before complete closure; Figure 2 is a sectional view of the crucible in Figure 1, closed in a sealed manner; Figure 3 is a sectional view of another embodiment of crucible formed according ( 19) Jun 1977 in 1 586 383 to the invention, provided with a pressurization tube passing through its base, and Figure 4 is a sectional view of a modification of the crucible in Figure 4.
The crucible 1 in the drawing has a general cylindrical shape It has thick walls and its outer surface preferably has an absolutely constant diameter, to facilitate positioning of the crucible with slight clearance in a tube or socket.
At one end, opposite its base, the crucible 1 is open and the inner surface of the crucible is machined, at a certain distance from this open end, in order to produce an annular groove 2 defined, adjacent the opening, by a step 3 having a sharp edge.
Beyond the groove 2, the side wall of the crucible 1 has a change in diameter creating a support surface 4 in the form of a ring, directed towards the opening.
The crucible 1 is closed by a removable stopper 5 having two cylindrical ends 6 and 7 of different diameters, connected by a central frustoconical part 8 The lower cylindrical part 7 of the stopper 5, which is that having the larger diameter, is supported on the surface 4 and centered by an exact fit.
The frustoconical part 8 is located opposite the bottom of the annular groove 2.
A ring 9 of initially cylindrical shape of plastic deformable material is engaged between the side wall of the crucible 1 and the upper cylindrical part 6 of the stopper 5, under the force of a rammer 10 acting in the direction of arrow 11, as shown in Figure 1.
The outer cylindrical surface of the ring 9 has a diameter substantially equal to that of the opening in the crucible 1, whereas its inner cylindrical surface has a diameter substantially equal to that of the upper part 6 of the stopper Thus, initially, the lower edge of the ring 9 remains at the height of the top of the frustoconical part 8 of the stopper 5.
Then, a considerable force or impact is exerted in the direction of arrow 12 in Figure 2 on the rammer 10, in the direction of the bottom of the crucible 1 This force or impact drives the ring 9 which deforms and fills the annular groove 5 After extrusion, the material of the deformed ring 9 anchors said ring on the step 3 and exerts a wedging effect on the frustoconical part 8 of the stopper 5 One thus obtains a sealed closure, resistant to high pressure and temperature.
After an experiment has been carried out, it is possible to recover the crucible 1, for example by selectively dissolving the material of the ring 9, which differs from the materials constituting the crucible 1 and stopper 5 which must not be deformed during the closing operation For example, the ring can be made of copper of aluminium and the crucible 1 of stainless steel, the ring being dissolved with dilute hydrochloric acid or soda It is also possible to extract the deformed ring 9 by mechanical action, in particular by a coring operation.
Figure 3 shows a crucible 1 constructed as afore-mentioned as regards the stopper 5 and ring 9 and provided with a pressurization tube 13 passing through the bottom, to which it is welded, this tube opening in the vicinity of the stopper 5 It is possible to introduce a liquid 14 into the crucible 1 held vertically, without it being able to escape through the tube 13.
Figure 4 illustrates a modification of the crucible in Figure 3, in Figure 4 the crucible 1 is used in the horizontal position The tube 13 which passes through the bottom of the crucible 1 is bent and opens close to the side wall of the crucible, above the level of the liquid 14.
Claims (9)
WHAT WE CLAIM IS:
1 A re-usable experimentation crucible comprising a base and a cylindrical side wall surrounding an opening opposite to said base, a support surface internally of the crucible and disposed adjacent to and directed towards the opening, a removable stopper supported and centered on the support surface, an annular groove located between the support surface and the opening, and a ring of plastically deformable material engageable between the side wall of the crucible and the stopper, which ring may be forced in a direction towards the base of the crucible so as to deform and fill the annular groove and thereby ensure sealed closure of the crucible.
2 A re-usable experimentation crucible as claimed in Claim 1, wherein the annular groove is defined, adjacent the opening, by a step having a sharp edge.
3 A re-usable experimentation crucible as claimed in Claim 1 or Claim 2, wherein the stopper has two cylindrical ends of different diameters connected by a central frustoconical part, the cylindrical part of larger diameter being supported on the said support surface and the frustoconical part being located opposite the bottom of the annular groove.
4 A re-usable experimentation crucible as claimed in Claim 3, wherein the ring of deformable material has an initially cylindrical shape, its outer surface having a diameter substantially equal to that of the opening in the crucible, whereas its inner surface has a diameter substantially equal to that of the cylindrical part of smaller diameter of the stopper.
A re-usable experimentation crucible as claimed in any preceding claim, wherein the ring is made from material which is dissolvable by selective chemical action in order to recover the crucible.
6 A re-usable experimentation crucible 3 1 586 383 3 as claimed in any one of claims 1 to 4, wherein the ring is made from material facilitating its extraction by mechanical action.
7 A re-usable experimentation crucible as claimed in any preceding claim, further comprising a pressurization tube passing through its base.
8 A re-usable experimentation crucible as claimed in Claim 7, wherein the said tube opens out in the vicinity of the stopper.
9 A re-usable experimentation crucible as claimed in Claim 7, wherein the said tube is bent and opens out close to the cylindrical side wall of the crucible.
A re-usable experimentation crucible substantially as hereinbefore described with reference to Figures 1 and 2, or Figure 3 or Figure 4 of the accompanying drawing.
MARKS & CLERK, 7th Floor, Scottish Life House, Bridge Street, Manchester M 3 3 DP.
Agents for the Applicants.
Printed for Her Majesty’s Stationery Office, by Croydon Printing Company Limited, Croydon, Surrey, 1981.
Published by The Patent Office, 25 Southampton Buildings, London, WC 2 A IAY, from which copies may be obtained.
GB17885/78A
1977-06-09
1978-05-05
Re-usable experimentation crucible
Expired
GB1586383A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
FR777718421A
FR2393610A1
(en)
1977-06-09
1977-06-09
REUSABLE EXPERIMENTATION CRUCIBLE
Publications (1)
Publication Number
Publication Date
GB1586383A
true
GB1586383A
(en)
1981-03-18
Family
ID=9192148
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB17885/78A
Expired
GB1586383A
(en)
1977-06-09
1978-05-05
Re-usable experimentation crucible
Country Status (4)
Country
Link
US
(1)
US4140239A
(en)
DE
(1)
DE2821250C3
(en)
FR
(1)
FR2393610A1
(en)
GB
(1)
GB1586383A
(en)
Families Citing this family (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPH0341168Y2
(en)
*
1985-08-05
1991-08-29
US5042847A
(en)
*
1989-07-20
1991-08-27
Ford Motor Company
Metal to ceramic sealed joint
ES2105808T3
(en)
*
1994-07-08
1997-10-16
Heraeus Electro Nite Int
DEVICE FOR MEASURING SURFACE TENSION.
DE4423720C1
(en)
*
1994-07-08
1996-02-01
Heraeus Electro Nite Int
Surface tension measurement esp. in molten metal
CN102247902B
(en)
*
2011-03-31
2013-04-03
北京科技大学
Double-crucible experimental apparatus for high-temperature experiment
CN113333045B
(en)
*
2021-06-07
2022-10-28
北京牡丹电子集团有限责任公司数字科技中心
Sealed crucible with pressure relief function and preparation method thereof
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1713224A
(en)
*
1926-04-01
1929-05-14
James E Gunter Corp
Container
US2037536A
(en)
*
1934-10-19
1936-04-14
Gen Electric
Cover lock for rayon spinning buckets
US2725252A
(en)
*
1951-06-04
1955-11-29
Greer Hydraulics Inc
Securing means for a closure plug for a pressure vessel
1977
1977-06-09
FR
FR777718421A
patent/FR2393610A1/en
active
Granted
1978
1978-05-05
GB
GB17885/78A
patent/GB1586383A/en
not_active
Expired
1978-05-16
DE
DE2821250A
patent/DE2821250C3/en
not_active
Expired
1978-05-22
US
US05/908,532
patent/US4140239A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
FR2393610A1
(en)
1979-01-05
US4140239A
(en)
1979-02-20
DE2821250B2
(en)
1980-05-22
FR2393610B1
(en)
1980-04-04
DE2821250C3
(en)
1981-02-05
DE2821250A1
(en)
1978-12-14
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Legal Events
Date
Code
Title
Description
1981-06-03
PS
Patent sealed [section 19, patents act 1949]
1996-01-03
PCNP
Patent ceased through non-payment of renewal fee
Effective date:
19950505