The clockwork movement comprises a crown (12) connected with at least one element of the movement through a connecting organ. It is provided with a selection device (13) that includes a blocking device (15) provided with two blocking spring blades (26, 27) cooperating with a set of teeth (28) of crown (12). This blocking device allows rotation of the crown to be blocked in a first direction, and to be permitted in a second direction, in a predetermined position of a control lever (30) selectivel...

The movement has a rectangular section case for accommodating a magnet rotor so as to turnably support the magnet rotor engaged with a pointer spindle. A pair of inner core bobbins wound by an electrical wire each are slidingly engaged with the case through the rectangular opening so as to be opposed to each other. A pair of outer bobbins wound by an electrical wire each are slidingly engaged with the pair of inner core bobbins through a rectangular opening of each outer bobbin so as to be oppos...

A timepiece movement proposed has a spring which drives, via gearing, a time display and a generator (1) supplying an a.c. voltage. The generator (1) powers, via a voltage-transformer circuit (2), a first capacitative component (10). The first capacitative component (10) powers an electronic reference circuit (3, 4, 5) with a stable oscillator (3, 4) and an electronic control circuit (6, 7, 8, 9). The first capacitative component (10) is charged immediately after the movement is started for the ...

A movement detector for sensing movement from an infant lying on a mattress whether the infant is awake or asleep. The movement detector is comprised of a piezoelectric transducer secured between a pair of plates with a collector one of the plates having a bore or cavity configured in an inner flat surface thereof at the center of the plate, and with the backing plate of the transducer being secured about the cavity. A spacer element between the center of the transducer and the bottom plate, con...

A transducer responsive to rotational movement comprises a support member on which a shaft is rotatably mounted. Relative movement between the member and the shaft is sensed by flexure of a strip of a piezo-resistive mateial. Typically, the strip is facribed from signle crystal silicon.

A movement sensor having a movable part, detection means for providing a first detection signal when the part is in one position and a second detection signal when the part is in a different position, and means for producing an alarm signal in response to the first and second detection signals being successively provided after initiation of the operation of the sensor irrespective of the order in which said signals are provided.

The invention relates to a watch movement comprising an annular casing (10), having an external diameter D, which is provided with a central round opening (48) that is defined by an internal diameter d. According to the invention, the gear train (34) comprises a mobile (36) consisting of a minute wheel (36a) and a pinion (36b), a cannon pinion (38), which is driven by the minute wheel (36a) and intended to support a minute hand (40), and an hour wheel (42) which is driven by the pinion (36b) and...

An apparatus for driving small volumes of fluid. The apparatus comprises a substrate and a first array of electrically conductive electrodes formed on the substrate. A second array of electrically conductive electrodes formed on the substrate, the first and second array being interlaced and being arranged such that each of the electrodes in the second array has a width in a fluid driving direction which is greater than that of each of the electrodes in the first array and such that the first and...

A movement mechanism applicable to a vehicle outside rearview mirror and employing a substantially spherical holder and a substantially spherical bowl nested one in the other and relative rotatable relative to each other about first and second mutually perpendicular axes with the plane of the outer edge of the holder lying in or parallel to the plane of the axes. The disk is located between the holder and bowl and connected to the bowl for rotation about one of the axes and connected to the hold...

Watch movement comprising a housing (26, 28, 30, 32, 34) and a gear train, formed from a series of spindles (36, 38, 40, 42), pivotably mounted on the housing, of which a first of said spindles (42) is provided with a shank (42a), for fixing a first hand (16) and a second of said spindles (50) is provided with a cylinder (50b), arranged co-axially to said shank, for fixing a second hand (20). According to the invention, the second spindle (50) is rotationally mounted on said housing (34) by mean...