Abstract: A microprocessor transfers into a first so-called "fixed" zone of the memory the intermediate total distance travelled since the vehicle was put on the road and, in a second so called "journey" zone of the memory the successive partial distances travelled between each power supply cut off, the successive partial distances being transferred into the cells of the journey zone of the memory each time the power is switched off.

Abstract: In a liquid level detector of the type comprising a fixing rod bearing a winding over virtually the whole of its height, an annular float mounted around the rod and bearing at least one conducting blade constantly in contact with the winding, a warning device comprising a conducting rod sliding in a bore made in the float, the bore having its axis substantially parallel to the axis of the fixed rod, the conducting rod comprising a retaining device, and a conducting surface fixed to the lower end of the fixed rod, the arrangement being such that the conducting rod projects downwardly from the float when the level is higher than a determined warning level and comes into contact with the conducting surface when this level is reached, and electrical connections connecting the winding, the conducting surface, the or each conducting blade and the conducting rod to output terminals, the conducting rod extends at its top end in a supple loop made of conducting wire located in a plane substantially perpendicular to th

Abstract: A sensor for detecting the level of a liquid, comprising a conducting wire whose resistance has a high coefficient of temperature, the wire forming at least one pair of substantially parallel strands, adjacent connection pieces to which the ends of the wire are fixed, a tubular housing open at its upper and lower opposite ends, a spring having one end connected to the wire at the junction of its strands and its other end hooked to a lower holding piece fixedly mounted at the lower end of the tubular housing, and provided with an axial passage for a removable assembly spindle, an upper holding piece for holding the connection pieces, the upper holding piece being slidable in the tubular housing and fixedly mounted near the upper end of said housing and being provided with an axial passage with abutment for the removable assembly spindle.

Abstract: A device for measuring the level of a liquid, comprising a high temperature coefficient sensor immersed in the liquid, a detection circuit connected to the sensor for delivering a voltage indicative of the level of liquid, a memory circuit to which said voltage is applied, a saw-tooth signal generator circuit and, a comparator. The output signals of the memory circuit and of the saw-tooth signal circuit are coupled to input terminals of the comparator, and a display galvanometer is connected to the output of said comparator.

Abstract: A daily mileage recording unit, of the type comprising a plurality of drums mounted side by side on the same shaft and supported in rotation by a frame, a swinging member mounted to pivot with respect to the frame, a series of gears carried by the swinging member, each disposed between two drums to displace one drum by one graduation when the preceding drum has effected a complete revolution, a sliding member guided in translation in the frame and provided with a push button, a mechanism connecting the sliding member to the swinging member to pivot the latter when the push button is displaced, a cam rigidly locked with each drum and an actuator associated with each cam and carried by the swinging member for returning to zero the corresponding drum when the push button is actuated, a square rigidly locked with each gear and ramps carried by the frame which are engaged by respective squares during the pivoting of the gears, the contact surface of the ramp being a circular sector centered on the pivoting axis.