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.)
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.)
Filing date
Publication date
Application filedfiledCritical
Application grantedgrantedCritical
Publication of DE316602CpublicationCriticalpatent/DE316602C/de
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
F21V21/14—Adjustable mountings
F21V21/16—Adjustable mountings using wires or cords
F21V21/18—Adjustable mountings using wires or cords operated by springs
Einrichtung zum selbsttätigen Verlängern und Verkürzen der Leitung elektrischer Lampen, Apparate, Werkzeuge, die an mehreren Arbeitsstellen verwendet werden.
Gleichgewichtsregler fuer Flugzeuge, bei dem das Flugzeug durch Schliessen elektrischer Kontakte in einer durch Einstellung von Hand bestimmbaren Lage gehalten wird