A proximity monitoring system for individually identifying an object or person, and having a central information processor, and a signal receiver, several remote detectors in various locations at a distance from the information processor, each having a first transmitter for communicating with such processor and having a second transmitter and a receiver, and several individual personalized portable identifiers, each identifier having a continuously activated receiver, a signal transmitter which ...

The invention relates to a movement detector, more particularly a sensor comprising a container partially filled with a liquid into which three electrodes extend. An input alternating signal is applied to two of the electrodes and an output signal amplitude modulated in accordance with movement of the liquid in the container, is detected from another two of the electrodes by means of a sensing circuit which includes a demodulator for detecting the amplitude modulation and a circuit arrangement w...

A mechanical movement is provided for converting between linear and rotational movement and includes a frame adapted to move only along a linear path of travel. A first rotatable member is adapted to bear against the frame in such a manner that the first rotatable member is free to rotate with respect to the frame. A second rotatable member is adapted to bear against the first rotatable member in such a manner that the second rotatable member is free to rotate with respect to the first rotatable...

A wristwatch movement has a back cover formed with a battery replacement hole, and a base plate formed with a battery compartment in a substantially axial alignment with the battery replacement hole. An actuating lever has one end selectively engageable with a setting lever engaging with a winding stem extending through a radial bore of the base plate, and another end formed with a handling portion extending toward the battery compartment such that the handling portion can be manipulated through...

A movement device including a rigid inner supporting rod-like member of a closed circuit configuration and a flexible, closed sleeve slidably mounted on the rod-like support member. In one application of the invention, a drawer or the like can be moved relative to a case or the like by securing the drawer to the sleeve and securing the case to the sleeve at points on opposite sides of a point at which the rod-like support member changes direction. In another application, the device is used as a ...

A timepiece movement comprises a first luminous element for emitting light, a second luminous element for emitting light, and a light-receiving element for receiving the light emitted by the first and second luminous elements. A second wheel has an aperture through which light from the first luminous element may pass and a reflecting portion. A first transmitting wheel transmits a rotational drive to the second wheel as a function of second time and has an aperture through which light from the f...

The joint thereshown has two stainless steel side plates (21, 22) which are rolled from a single strip and are bent double at the bottom of the lower limb (23) of the Y. The plates have rolled in ridges (24) at the top of this limb (23) and diverge above the ridges (24) as upper Y limbs (26). Between the limbs (26) a core is captivated at a relatively hard, necked lower core-portion or rib (31) by the ridges (24). Above these, a relatively softer upper core-portion or strip (32) fills the space ...

A mechanical movement includes an input member movable in opposite directions, levers each connected to and pivotally movable by the input member, crank arms connected to and movable by the levers, eccentric crank pins driven by the crank arms, and circular gears connected to and rotated by the crank pins. The gears rotate an output shaft by engaging teeth on opposite sides thereof.

An extra-thin manually or automatically wound watch movement in which at least one wheel is pivoted in an overhang position by means of a single-race miniaturized ball bearing.

In a device for indicating a preset amount of relative movement between two points, an indicator sleeve axially movable in a cylindrical bore in a housing fixed to one of the points remains flush with the housing until the preset amount of movement is reached at which point the sleeve pops up to give a positive, easily identifiable indication of the movement. An actuating rod which bears against and follows the second point is axially slidable in the sleeve and operates a ball bearing mechanism ...