G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
G01D15/12—Magnetic recording elements
G—PHYSICS
G11—INFORMATION STORAGE
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
Embrayage à entraînement angulaire limité, pour coupler à un arbre moteur un moyen de commande auxiliaire à deux positions suivant le sens de rotation de l'arbre