Abstract: An electrocarrier cable has conductor elements and support or carrier elements. The conductors are lapped on insulating cores and are enclosed in fluorinated sheaths to form conductor elements which are stranded to an elongated central core, preferably with interleaved support elements. A braid of relatively inextensible fibers, i.e., aramide fibers, encloses the conductor elements and is coated with a polyurethane sheath. The cable is arranged such that the aramide fibers fail in tension before the conductors fail, and is particularly useful in a self-supporting cable for carrying low level currents, such as in the field of oceanography.

Abstract: Electric safety lock, more specially designed for motor vehicle doors, in which each vehicle door as well as the motor bonnet, the petrol tank cap and the luggage boot of the vehicle are each equipped with a set consisting of a case in which an electric micro-motor is mounted.

Abstract: An apparatus for off-winding thread which comprises a driving shaft, a drive means for rotating the driving shaft, a driven shaft, an electrically operated clutch interconnecting said driven and driving shaft, an electrically operated brake connected to said driven shaft, and an electronic control circuit. The control circuit comprises three parts connected to the said clutch and brake. The first part of the control circuit is connected to the said clutch and incorporates an integrating circuit for producing gradual engagement of the clutch. The second part of the control circuit is connected to the said brake and incorporates a pulse generating circuit for producing a large temporary braking force. The third part of the control circuit is also connected to the said brake and incorporates a constant signal generator for producing a small constant braking force.