Abstract: An electric switch protective apparatus is provided having a mobile contact which may be separated from a pseudo-fixed contact to which it is applied, either through the movement of coupling means of the mobile contact, or through the lateral movement made by a support of this pseudo-fixed contact under the action of connection means associated with a remote controlled electromagnet.

Abstract: A device for connecting an electric conductor mounted within a housing is provided, on a first lateral face, with an opening for the introduction of the electric conductor and, on a further lateral face perpendicular to the first one, with another opening for the introduction of a tool. Said device comprises a contact member secured within the housing and means for resilient jamming of the electric conductor against the contact member. The means for resiliently jamming the conductor consist of a single member comprising a presser tongue contained in a plane making an acute angle with the plane of the contact member and a portion for transmitting the resilient force created by resilient means which bear on the face of the contact member opposite to that on which the tongue bears. The portion is contained in a plane adjacent to the contact member at right angles with the plane of the contact member and parallel to the direction of introduction of the wire.

Abstract: The device for fixing an object by screwing to a section having two flanges directed substantially towards one another and defining therebetween a longitudinal opening comprises an elongated plate provided with one of the threaded portions and rotatable in a plane substantially parallel to that of the flanges of the section. In a free position, the longitudinal direction of the plate corresponds substantially to that of the section. In a retained position, the plate is retained under the flanges of the section and immobilized in one at least of the directions of rotation. Resilient means are provided for urging the plate towards the flanges of section in the retained position. The resilient means bear on a wedge intended to be inserted between the external face of the flanges of the section and the object to be fixed. This wedge has a passageway for a connecting rod between the plate and the other screw fixing element.

Abstract: A bleed valve can take two distinct positions, whereby in the first, in the absence of control pressure, it applies its orifice against a timing device by pneumatic means which it maintains set and in the second it is removed from the device by a certain distance before being caught up by the latter.This apparatus is used in automatic pneumatic control systems.

Abstract: An auxiliary manual control device for cells of a pneumatic system comprises an intermediary casing connecting each cell to a baseplate on which the said casing is normally secured. The casing is provided with piping for directly connecting the orifices of permanent pressure supply and input signals, and an OR gate with two inputs, whose output is connected to the output orifice of the baseplate, one of the inputs of the gate being directly connected to the output orifice of the cell, whereas the other input of the gate is connected by a monostable manual operated pneumatic reverser either to the exhaust, which represents its rest position, or to the pipe of permanent pressure supply.