CH645961A5 - Ceiling retention and supply device for retaining and supplying medical apparatuses with gas and electricity - Google Patents
Ceiling retention and supply device for retaining and supplying medical apparatuses with gas and electricity Download PDFInfo
- Publication number
- CH645961A5 CH645961A5 CH105580A CH105580A CH645961A5 CH 645961 A5 CH645961 A5 CH 645961A5 CH 105580 A CH105580 A CH 105580A CH 105580 A CH105580 A CH 105580A CH 645961 A5 CH645961 A5 CH 645961A5
- Authority
- CH
- Switzerland
- Prior art keywords
- elements
- deposits
- lton
- chemical
- organ
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/107—Supply appliances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G12/00—Accommodation for nursing, e.g. in hospitals, not covered by groups A61G1/00 - A61G11/00, e.g. trolleys for transport of medicaments or food; Prescription lists
- A61G12/002—Supply appliances, e.g. columns for gas, fluid, electricity supply
- A61G12/004—Supply appliances, e.g. columns for gas, fluid, electricity supply mounted on the ceiling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H13/00—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nursing (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Electric Clocks (AREA)
- Fluid-Pressure Circuits (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Invalid Beds And Related Equipment (AREA)
Description
Procédé de fabrication d'un organe moteur de pièce dthorlogerie électrique.
On connais déjà des organes, par exemple des bilames, qui se déforment lorsqu'ils sont soumis à traction de champs magnétiques. Ces organes ont trouvé de nombreuses utilisations par exemple comme dispositifs moteurs pour pièce dthorlogerie.
La présente invention a précisément pour objet un procédé de fabrication d'un organe de ce genre présentant plusieurs éléments à coefficients magnétostrictifs différents.
Ce procédé est caractérisé par le fait que lxon dépose au moins l'un de ces éléments sur un autre élément par voie chimique ou électro chimique.
Un premier exemple de mise en oeuvre du procédé consiste à prendre un premier élément, par exemple une lame métallique obtenue par laminage et constituée drun alliage présentant un coefficient magné- tostrictif déterminé, par exemple négatif, à le tremper dans un bain électrolytique où il joue le rôle de cathode alors que llanode est constituée par un alliage ayant un coefficient magnétostrictif positif.
On obtient ainsi un corps constitué drun élément laminé recouvert d'un déport électrolytique et dont les déformations provoquées par inaction dtun champ magnétique sont accentuées par le fait que les coefficients magnétostrictifs de ces divers éléments sont de signes opposés.
Dans un autre exemple on pourrait déposer la matière du premier élément par voie chimique sur un second élément qui pourrait être constitué par exemple drun noyau métallique obtenu par fusion.
Enfin dans un troisième exemple, on pourrait prévoir l:association de deux éléments à coefficients magnétostrictifs différents par voie chimique ou électrolytique.
Dans le cadre de ltapplication d'un tel organe comme dispositif moteur de pièce dthorlogerie, on pourrait être amené à choisir des éléments présentant des caractéristiques particulières. Ctest ainsi quTil peut votre avantageux de régler les dépotes chimiques ou électrolytiques de manière que le rapport entre les épaisseurs e1 et e2 des éléments se rapproche de la racine carrée du rapport inverse de leurs modules dtYoung E1 et E2 . La formule correspondante stécrirait alors :
EMI3.1
On pourrait également choisir des éléments présentant des coefficients de dilatation tels que ltorgane soit compensé thermiquement;
de mme cet organe pourrait présenter un coefficient thermoélastique voisin de zéro dans le domaine des températeures courantes. Enfin les éléments pourraient etre constitués par des alliages présentant des vitesses de propagation des ondes
EMI3.2
voisines de sorte que ces éléments présentent des propriétés dynamiques similaires.
De nombreux alliages pourraient être associés; 15une de ces associa tions , donnée à titre dtexemple, consiste en un premier élément en un alliage du type invar sur lequel est déposé un alliage d haute teneur en nickel par exemple de 96 % de nickel et de 4 % de cobalt.
Method for manufacturing an electric timepiece motor member.
There are already known organs, for example bimetallic strips, which deform when subjected to traction by magnetic fields. These organs have found many uses, for example as motor devices for timepieces.
The present invention specifically relates to a method of manufacturing an organ of this kind having several elements with different magnetostrictive coefficients.
This process is characterized by the fact that lxon deposits at least one of these elements on another element by chemical or electro-chemical means.
A first example of implementation of the method consists in taking a first element, for example a metal blade obtained by rolling and made up of an alloy having a determined magneto-restrictive coefficient, for example negative, in dipping it in an electrolytic bath where it plays the role of cathode while the anode is constituted by an alloy having a positive magnetostrictive coefficient.
A body is thus obtained consisting of a laminated element covered with an electrolytic offset and whose deformations caused by inaction of a magnetic field are accentuated by the fact that the magnetostrictive coefficients of these various elements are of opposite signs.
In another example, the material of the first element could be deposited chemically on a second element which could consist, for example, of a metal core obtained by fusion.
Finally in a third example, one could provide for: the association of two elements with different magnetostrictive coefficients by chemical or electrolytic means.
In the context of the application of such a member as a driving device for a timepiece, it could be necessary to choose elements having particular characteristics. This is how it can be advantageous for you to adjust the chemical or electrolytic deposits so that the ratio between the thicknesses e1 and e2 of the elements approaches the square root of the inverse ratio of their modules dtYoung E1 and E2. The corresponding formula would then describe:
EMI3.1
One could also choose elements having expansion coefficients such that the organ is thermally compensated;
in the same way, this member could have a thermoelastic coefficient close to zero in the field of current tempers. Finally, the elements could be constituted by alloys having wave propagation velocities
EMI3.2
neighbors so that these elements have similar dynamic properties.
Many alloys could be associated; 15one of these associations, given by way of example, consists of a first element of an alloy of the invar type on which an alloy of high nickel content, for example 96% nickel and 4% cobalt, is deposited.
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792905302 DE2905302A1 (en) | 1979-02-12 | 1979-02-12 | CEILING SUPPLY UNIT |
Publications (1)
Publication Number | Publication Date |
---|---|
CH645961A5 true CH645961A5 (en) | 1984-10-31 |
Family
ID=6062750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH105580A CH645961A5 (en) | 1979-02-12 | 1980-02-08 | Ceiling retention and supply device for retaining and supplying medical apparatuses with gas and electricity |
Country Status (6)
Country | Link |
---|---|
CH (1) | CH645961A5 (en) |
DE (1) | DE2905302A1 (en) |
DK (1) | DK38880A (en) |
FR (1) | FR2448681A1 (en) |
NL (1) | NL7907812A (en) |
SE (1) | SE446029B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3645246C2 (en) * | 1986-12-16 | 1997-10-09 | Kreuzer Friedhelm Gmbh | Load support with derricking boom |
DE4217128C2 (en) * | 1992-05-23 | 1994-04-07 | Draegerwerk Ag | Ceiling supply unit |
EP1067419B1 (en) * | 1999-07-03 | 2008-01-30 | Leica Microsystems AG | Ceiling mount |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1638939A (en) * | 1923-08-20 | 1927-08-16 | Koenigkramer Frederick | Instrument-supporting apparatus |
FR1136512A (en) * | 1955-11-12 | 1957-05-15 | Parisienne D Expl Des Etabliss | Device bringing together various departments of an operating room |
US3431937A (en) * | 1965-09-08 | 1969-03-11 | Chemetron Corp | Medical service unit |
FR2076373A5 (en) * | 1970-01-13 | 1971-10-15 | Alexandre Et Cie |
-
1979
- 1979-02-12 DE DE19792905302 patent/DE2905302A1/en not_active Ceased
- 1979-10-24 NL NL7907812A patent/NL7907812A/en not_active Application Discontinuation
- 1979-12-21 SE SE7910600A patent/SE446029B/en not_active IP Right Cessation
-
1980
- 1980-01-25 FR FR8002178A patent/FR2448681A1/en active Granted
- 1980-01-30 DK DK38880A patent/DK38880A/en not_active Application Discontinuation
- 1980-02-08 CH CH105580A patent/CH645961A5/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL7907812A (en) | 1980-08-14 |
DK38880A (en) | 1980-08-13 |
FR2448681B1 (en) | 1983-06-24 |
FR2448681A1 (en) | 1980-09-05 |
SE7910600L (en) | 1980-08-13 |
SE446029B (en) | 1986-08-04 |
DE2905302A1 (en) | 1980-08-14 |
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Legal Events
Date | Code | Title | Description |
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PL | Patent ceased |