CH227260A - Electron multiplier. - Google Patents
Electron multiplier.Info
- Publication number
- CH227260A CH227260A CH227260DA CH227260A CH 227260 A CH227260 A CH 227260A CH 227260D A CH227260D A CH 227260DA CH 227260 A CH227260 A CH 227260A
- Authority
- CH
- Switzerland
- Prior art keywords
- racket
- fact
- slot
- electron multiplier
- receive
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/04—Electron multipliers
- H01J43/06—Electrode arrangements
- H01J43/18—Electrode arrangements using essentially more than one dynode
- H01J43/26—Box dynodes
Landscapes
- Particle Accelerators (AREA)
- Surgical Instruments (AREA)
Description
Raquette pour pince d'horlogerie.
La présente invention a pour objet une rasuette pour pièce d'horlogerie.
Cette raquette est caractérisée par le fait qu'elle présente, ouvrant sur sa face supérieure, une fente ménagée sur une partie seulement de son épaisseur, destinée à recevoir la lame d'un tournevis permettant de la manoeuvrer.
Le dessin représente, à titre d'exemple, une forme d'exécution de l'objet de l'invention.
La fig. 1 est une vue en plan dune partie d'une pièce d'horlogerie, et,
La fig. 2 est une coupe suivant la ligne
II-II de la fig. 1.
La raquette représentée comprend une partie annulaire 1 montée à frottement gras autour d'un coqueret 2 fixé au coq désigné par 5. La raquette présente une oreille la portant une clé 4 et une goupille 5 as surant le réglage de la longueur active du spiral. Une fente 6 est ménagée dans une partie de l'épaisseur de la raquette et ouvre sur la face supérieure de celle-ci.
Cette fente, tangentielle à la partie annulaire 1 de la raquette, et située à la naissance de l'oreille la, est destinée à recevoir la lame d'un tournevis permettant de la faire tourner autour du coqueret.
L'avantage de cette disposition réside prin
EMI2.1
cipalement dans le fait que
EMI2.2
4bbivVer la raquette depuis dessus, sans avoir à tenir le mouvement comme c'est le cas lorsqu'on pousse sur la queue de ra
EMI2.3
quette au moyen de brucelles par exemple;
EMI2.4
d'éffectuer la correction de la marche de la montre lors que celle-ci se trouve, par exemple, sur un appareil de contrôle de 1± marche instantanée.
Il est à remarquer que si lton introduisait un tournevis dans la fente de la raquette diamétralement opposée à l'oreille la, pour autant que cette fente soit assez large, on pourrait aussi manoeuvrer la raquette depuis dessus; par contre, on risquerait de déformer la raquette et, même sans déformation permanente, on la rendrait trop libre pendant le réglage, ce qui interdirait un réglage de préci Si On.
Racket for watchmaking pliers.
The present invention relates to a rasuette for a timepiece.
This racket is characterized by the fact that it has, opening on its upper face, a slot formed over only part of its thickness, intended to receive the blade of a screwdriver allowing it to be maneuvered.
The drawing represents, by way of example, an embodiment of the object of the invention.
Fig. 1 is a plan view of part of a timepiece, and,
Fig. 2 is a cut along the line
II-II of fig. 1.
The racket shown comprises an annular part 1 mounted with greasy friction around a cockerel 2 fixed to the cock designated by 5. The racket has an ear carrying a key 4 and a pin 5 as surant the adjustment of the active length of the hairspring. A slot 6 is formed in part of the thickness of the racket and opens on the upper face of the latter.
This slot, tangential to the annular part 1 of the racket, and located at the beginning of the ear 1a, is intended to receive the blade of a screwdriver allowing it to rotate around the cockle.
The advantage of this provision lies in the main
EMI2.1
mainly in the fact that
EMI2.2
4bbivVer the racket from above, without having to hold the movement as is the case when pushing on the tail of ra
EMI2.3
quette by means of tweezers for example;
EMI2.4
to correct the rate of the watch when it is, for example, on a 1 ± instantaneous rate control device.
It should be noted that if one inserted a screwdriver in the slot of the racket diametrically opposite to the ear there, as long as this slot is wide enough, we could also maneuver the racket from above; on the other hand, there would be the risk of deforming the racket and, even without permanent deformation, it would be made too free during the adjustment, which would prevent a fine adjustment If On.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB185683D DE740855C (en) | 1938-12-23 | 1938-12-23 | Secondary electron multiplier with a series of metallic electrodes provided with baffle plates which delimit the discharge space on all sides |
| DE227260X | 1941-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH227260A true CH227260A (en) | 1943-05-31 |
Family
ID=42668583
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH214273D CH214273A (en) | 1938-12-23 | 1939-12-19 | Electrostatic secondary electron multiplier. |
| CH214272D CH214272A (en) | 1938-12-23 | 1939-12-19 | Electrostatic secondary electron amplifier. |
| CH227260D CH227260A (en) | 1938-12-23 | 1942-04-23 | Electron multiplier. |
| CH231847D CH231847A (en) | 1938-12-23 | 1942-06-04 | Electron multiplier. |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH214273D CH214273A (en) | 1938-12-23 | 1939-12-19 | Electrostatic secondary electron multiplier. |
| CH214272D CH214272A (en) | 1938-12-23 | 1939-12-19 | Electrostatic secondary electron amplifier. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH231847D CH231847A (en) | 1938-12-23 | 1942-06-04 | Electron multiplier. |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE437405A (en) |
| CH (4) | CH214273A (en) |
| DE (1) | DE740855C (en) |
| FR (3) | FR868382A (en) |
| NL (2) | NL57289C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1022703B (en) * | 1952-10-23 | 1958-01-16 | Fernseh Gmbh | Electrostatic secondary electron multiplier |
| US2824253A (en) * | 1953-11-24 | 1958-02-18 | Itt | Electron multiplier |
| DE1021505B (en) * | 1953-12-17 | 1957-12-27 | Bendix Aviat Corp | Secondary electron multiplier with a set of secondary emitting plates and an electric and a magnetic field |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2069441A (en) * | 1933-05-30 | 1937-02-02 | Rca Corp | Electron tube |
| GB443777A (en) * | 1934-07-05 | 1936-03-05 | James Dwyer Mcgee | Electron discharge amplifiers |
-
1938
- 1938-12-23 DE DEB185683D patent/DE740855C/en not_active Expired
-
1939
- 1939-12-11 NL NL96207A patent/NL57289C/xx active
- 1939-12-13 NL NL96243A patent/NL58715C/xx active
- 1939-12-18 BE BE437405D patent/BE437405A/xx unknown
- 1939-12-19 CH CH214273D patent/CH214273A/en unknown
- 1939-12-19 CH CH214272D patent/CH214272A/en unknown
-
1940
- 1940-12-26 FR FR868382D patent/FR868382A/en not_active Expired
-
1942
- 1942-04-14 FR FR881199D patent/FR881199A/en not_active Expired
- 1942-04-23 CH CH227260D patent/CH227260A/en unknown
- 1942-06-04 CH CH231847D patent/CH231847A/en unknown
- 1942-06-18 FR FR52188D patent/FR52188E/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE740855C (en) | 1943-10-29 |
| CH231847A (en) | 1944-04-15 |
| FR881199A (en) | 1943-04-16 |
| FR52188E (en) | 1943-09-15 |
| CH214273A (en) | 1941-04-15 |
| BE437405A (en) | 1940-01-31 |
| FR868382A (en) | 1941-12-29 |
| NL58715C (en) | 1947-01-15 |
| CH214272A (en) | 1941-04-15 |
| NL57289C (en) | 1946-04-15 |
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