GB682530A - Improvements in apparatus for introducing specimens into an evacuated chamber - Google Patents
Improvements in apparatus for introducing specimens into an evacuated chamberInfo
- Publication number
- GB682530A GB682530A GB4721/50A GB472150A GB682530A GB 682530 A GB682530 A GB 682530A GB 4721/50 A GB4721/50 A GB 4721/50A GB 472150 A GB472150 A GB 472150A GB 682530 A GB682530 A GB 682530A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- rod
- holes
- specimen
- chamber
- 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
- 210000004907 gland Anatomy 0.000 abstract 3
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/20—Means for supporting or positioning the object or the material; Means for adjusting diaphragms or lenses associated with the support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/18—Vacuum locks ; Means for obtaining or maintaining the desired pressure within the vessel
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
682,530. X-ray apparatus. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 1, 1950 [Feb. 23, 1950], No. 4721/50. Class 98 (i). [Also in Group XL (a)] Apparatus for introducing specimens into the vacuum chamber of an electron microscope or diffraction camera comprises a rod and tube slidably arranged in an opening in the wall of the chamber, the rod being formed at its inner end with holes, and an extension of the same diameter of the tube allowing the holes to be closed by the tube whilst the assembly is withdrawn to a position in which the extension seals the chamber and the tube slid outwardly to expose the holes for positioning of the specimens. The rod 5 with three specimen holes 7 and an enlarged end 9 slides within a tube 6 which is also an accurate sliding fit in a sleeve 10 formed integrally with a beam member 14. A gland seal 11 and nut 12 engage the end of the sleeve 10 and a locking screw 18 clamps the tube 6 in any.position. A bellows 16 and gland 17 seal the wall of the tube and the tube 10. The rod 5 is vacuum sealed by a gland seal 20 and the head 25 of the rod carries a notched rod 26 which extends into the body of the seal retaining nut 23, a spring-pressed catch 27 engaging the notches 28, 29. The notches 28 determine the selective positioning of the specimen holes 7 and the notch 29 determines the point at which the end 9 is flush with the tube 6 when the latter is withdrawn for specimen changing. A split ring 31 in a recess 30 abuts the inner end 32 of the sleeve 10 when the tube 6 is withdrawn and prevents further movement of the rod 5 in that direction, and by withdrawing the catch 27, the tube 6 can be moved further to expose the holes 7. A scanning movement of the specimen with the chamber is provided by means of the beam 14 which is supported on pins 35 on the ends of screw-threaded rods 33. The pins 35 engage in notches 36 which prevent rotation. The threads 37 of the rods 33 carry nuts 38 with gear-teeth 39 which are driven by worm 40 and raise or lower the beam 14 against the action of tension springs 41, and provide the necessary tilt for a scanning movement of the specimens or a fine adjustment of the position of the holes 7. The locking screw 18 may be released to allow rotation of the tube 6 and rod 5 for stereoscopic photography. The angle of rotation is measured by a pointer and scale (not shown).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4721/50A GB682530A (en) | 1950-02-23 | 1950-02-23 | Improvements in apparatus for introducing specimens into an evacuated chamber |
| US198052A US2602899A (en) | 1950-02-23 | 1950-11-29 | Introduction of specimens into discharge vessels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4721/50A GB682530A (en) | 1950-02-23 | 1950-02-23 | Improvements in apparatus for introducing specimens into an evacuated chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB682530A true GB682530A (en) | 1952-11-12 |
Family
ID=9782537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4721/50A Expired GB682530A (en) | 1950-02-23 | 1950-02-23 | Improvements in apparatus for introducing specimens into an evacuated chamber |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2602899A (en) |
| GB (1) | GB682530A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2820904A (en) * | 1952-10-25 | 1958-01-21 | Philips Corp | Crystal holder |
| US2829261A (en) * | 1953-12-31 | 1958-04-01 | Philips Corp | Rotating flat specimen device for the geiger counter x-ray spectrometer |
| US3470412A (en) * | 1962-06-13 | 1969-09-30 | Shimadzu Corp | Apparatus for exchanging the filament of an electron gun |
| DE1286656B (en) * | 1967-02-24 | 1969-01-09 | Max Planck Gesellschaft | Device for moving parts located in the vacuum space of a corpuscular beam device, in particular an electron microscope |
| US3696246A (en) * | 1970-08-25 | 1972-10-03 | Perkin Elmer Corp | Specimen analysis in an electron microscope |
| JPS5937540B2 (en) * | 1974-09-06 | 1984-09-10 | 株式会社日立製作所 | Field emission scanning electron microscope |
| DE2510683C3 (en) * | 1975-03-12 | 1979-08-16 | Leybold-Heraeus Gmbh, 5000 Koeln | Rod lock for vacuum chambers |
| US3967127A (en) * | 1975-07-03 | 1976-06-29 | Gca Corporation | Sample introducer |
| US4272682A (en) * | 1979-08-10 | 1981-06-09 | Gatan, Inc. | Specimen elevator for an ion milling machine |
| US4538068A (en) * | 1983-05-03 | 1985-08-27 | The United States Of America As Represented By The United States Department Of Energy | Manipulator having thermally conductive rotary joint for transferring heat from a test specimen |
| US4640617A (en) * | 1985-02-28 | 1987-02-03 | Laser Precision Corporation | Spectrometers having purge retention during sample loading |
| US5412503A (en) * | 1992-08-27 | 1995-05-02 | U.S. Philips Corporation | Specimen holder for a particle beam optical apparatus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE708778C (en) * | 1937-11-20 | 1942-01-26 | Gewerkschaft Mathias Stinnes | Device for introducing objects into the electron microscope |
| US2208406A (en) * | 1938-08-17 | 1940-07-16 | Westinghouse Electric & Mfg Co | Cathode ray tube |
| BE437941A (en) * | 1939-02-17 | 1900-01-01 | ||
| US2440067A (en) * | 1945-11-10 | 1948-04-20 | Gen Electric | Manipulator |
| NL75362C (en) * | 1946-08-30 | |||
| NL73665C (en) * | 1947-07-08 | |||
| US2510349A (en) * | 1948-11-01 | 1950-06-06 | Rca Corp | Rod-type specimen stage for electron optical instruments |
-
1950
- 1950-02-23 GB GB4721/50A patent/GB682530A/en not_active Expired
- 1950-11-29 US US198052A patent/US2602899A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2602899A (en) | 1952-07-08 |
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