Abstract: In a contact pin for insertion into metal-coated bores in a contact panel which pin includes a leading guide section followed by a contact section and a connecting section the contact section is S-shaped in cross-section providing for spring arms with contact surface areas at their radial outer ends which have a relatively large even resiliency over the full length of the contact section thereby providing for good but never excessive contact pressure of the contact surfaces on the spring arms with the walls of the bores into which the contact pins are inserted and furthermore avoiding damage to the contact metal coatings upon insertion of the pin into a bore.

Abstract: In an optical fiber connector for joining the ends of pairs of light conducting fibers which includes a mounting plate provided with guide grooves receiving the fiber ends and a pressure plate structure disposed on top of the mounting plate and hinged and latched thereto, guide grooves are formed only in the mounting plate and have a depth greater than the fiber radius and the pressure plate structure has elastic clamping members formed therefrom so as to project toward the mounting plate for resilient engagement with the respective optical fiber ends and the clamping members engaging the ends of each pair of fibers are spaced such that an open area is provided at the fiber joints to provide for visibility of and access to the joints, the mounting plate and pressure plate structure having at their ends clamping structures for engaging and axially fixing the position of the fibers where the connector is closed.

Abstract: In a connector for a flat conductor strip cable which consists of a two-part housing in which the cable is engaged by compression, one of the housing parts has a cavity with a cable support surface disposed at a first acute angle with respet to the direction in which the two housing parts are movable in engagement with one another and the other housing parts carry leaf spring contact members disposed at a second acute angle with respect to the same direction, which angle is smaller than the first angle and the leaf spring contact members have cutting edges adapted to cut through the insulation of the conductor strip cable and the slide onto the surface of the flat conductors upon compression of the housing parts thereby providing for firm contact of the leaf spring contact members with the flat conductors.

Abstract: A rocking motor for driving an indexing element in a quartz controlled analog wristwatch is impulsed once per minute. The indexing element and the indexed "center" wheel are carried between parallel shunt plates holding the permanent magnet. The driving element is deflected by a pulse from its rest position to tension a spring, and the minute wheel is indexed when the driving element is returned by the reset spring.

Abstract: The two conductor hairspring-hub arrangement comprises a metallic and substantially conventional hairspring which is fastened to a unitary hub, i.e. a metallic washer-like hub, to form a core or inner conductor. This inner conductor is sheathed with an insulating mantle or layer which is, in turn, coated with an electrical conductive mantle, i.e. an outer conductor insulated from the inner conductor.The insulating and conductive mantles have openings so that separate electrical connection can be made to the inner and outer conductors at each end of the hairspring-hub arrangement.In this manner, a two conductor hairspring-hub arrangement is provided which in an electric watch is capable of coupling drive pulses to a balance wheel drive coil.

Abstract: The invention comprises an improved hairspring arrangement having a hairspring fixed in a groove of the hub in such a way that the hairspring protrudes from the groove, and furthermore, the protruding part of the hairspring should carry the electric conductor. The basic conception of the invention makes it possible to fix the hairspring, which has the customary shape of an upright standing metal strip, to the hub in the usual way. Normally one of the front surfaces of the hub is equipped with a straight or ring-shaped notch which reaches to the peripheral area of the hub and into which the inner end of the hairspring is inserted and then is fastened in the hub by deforming the notch-rims. Up to now the chosen depth of the notch was at least equal to the height of the metal strip forming the hairspring.

Abstract: A balance wheel for a horological instrument comprises a substantially annular rim having an enlarged counterweight portion and carrying a body (e.g., coil, magnet). The balance wheel is designed so that the body position is normally offset from the axis of the balance wheel in order that variations in body weight cause a related movement of the balance wheel about the axis. The rotation of the axially supported and initially unpoised balance wheel presents a portion of the counterweight to a stationary tool. The counterweight portion is of a predetermined configuration and the wheel is so designed that the tool removes sufficient material to poise the balance wheel.