DE369782C - Electrical safety key contact - Google Patents
Electrical safety key contactInfo
- Publication number
- DE369782C DE369782C DEG55024D DEG0055024D DE369782C DE 369782 C DE369782 C DE 369782C DE G55024 D DEG55024 D DE G55024D DE G0055024 D DEG0055024 D DE G0055024D DE 369782 C DE369782 C DE 369782C
- Authority
- DE
- Germany
- Prior art keywords
- electrical safety
- key contact
- safety key
- contact
- contacts
- 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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
- E05B49/002—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks
- E05B49/004—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks actuating mechanical switches
Landscapes
- Push-Button Switches (AREA)
Description
Die Erfindung hat den Zweck, einen Stromschluß nur mit einem passenden Schlüssel zu ermöglichen. Erreicht wird der Zweck durch eine nach Art der bekannten Sicherheitsschlösser ausgebildete Vorrichtung. Diese ist in den Abb. ι bis 3 in drei zueinander senkrechten Ansichten dargestellt.The invention has the purpose of a power supply only with a suitable key enable. The purpose is achieved by a type of the known security locks trained device. This is in Figs. Ι to 3 in three mutually perpendicular Views shown.
Die durch den Schlüsselbart gehobenen, aus isolierendem Material bestehenden Plättchen α drücken die Kontaktfedern b gegen Kontaktfedern c, wenn der Schlüssel nach rechts gedreht wird. Nur wenn sämtliche Kontaktfedern des in der Zeichnung mit vier Sperrungen ausgeführten Sicherheitskontaktes geschlossen sind, kommt Stromschluß zustande, da der Strom alle Federn hintereinander durchfließen muß.The raised by the key bit, consisting of insulating material plate α press the contact springs b against contact springs c when the key is turned to the right. Only when all the contact springs of the safety contact, which is shown with four locks in the drawing, are closed does a current connection occur, since the current must flow through all springs one after the other.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG55024D DE369782C (en) | Electrical safety key contact |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG55024D DE369782C (en) | Electrical safety key contact |
Publications (1)
Publication Number | Publication Date |
---|---|
DE369782C true DE369782C (en) | 1923-02-23 |
Family
ID=7130915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG55024D Expired DE369782C (en) | Electrical safety key contact |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE369782C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1060961B (en) * | 1956-03-17 | 1959-07-09 | Siemens Ag | Contact device operated by a key to prevent unauthorized use of a switch in electrical systems |
-
0
- DE DEG55024D patent/DE369782C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1060961B (en) * | 1956-03-17 | 1959-07-09 | Siemens Ag | Contact device operated by a key to prevent unauthorized use of a switch in electrical systems |
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