Abstract: A solid state electrical component is packaged within a housing and after connection to a terminal board is potted by an encapsulating medium. The solid state electrical component includes a chip area and a plurality of terminals connected to the chip. These terminals are connected to a terminal board which provides support for additional terminal members which extend from the housing and adapted for connection in an electrical circuit. The housing and device are supported by a frame serving as a heat sink.

Abstract: A motor is driven in stepped fashion by a pulsed alternating output from an integrated counter circuit and a source of oscillation to drive a gear train of a clock in stepped increments. The motor includes a stator having a core with at least one pair of stator poles, a winding coupled to the core, and a rotor having permanently magnetized poles of alternately opposite polarity; while the oscillator includes a highly stable quartz crystal. The stepping motor is self starting within at least the second pulse applied across the winding and provides a unidirectional drive by provision and arrangement of a pair of extensions, one on each stator pole although on opposite sides, proximate an air gap between stator poles, within which the rotor rotates. One extension is disposed forwardly into the air gap, while the other extension is disposed rearwardly out of the air gap.

Abstract: A synchronous motor includes a disc-shaped rotor, a one-piece stator, and a coil assembly including a core and a winding therearound. The stator is connected to one end of the core and includes a pair of legs, the ends of which extend along an arcuate length thereby to define stator pole faces spaced from and concentric with the axis of rotation of the rotor. The rotor is magnetized radially and presents a plurality of contiguous substantially equally sized magnetic poles of alternating polarity at an air gap. The magnetic poles are of an angular length greater than the length of the stator pole faces. The motor is received by a molded casing providing means both for locating the stator pole faces and the rotor within the stator field at the air gap. The core provides an additional stator pole face in the magnetic field of the rotor and the winding of the motor is energized either by an A.C. or a D.C. source.

Abstract: A portable heating apparatus includes a catalytic bed, a fuel for the catalyst and an electrical circuit operative at a preset time and throughout a predetermined duration of time for igniting the fuel. The circuit includes a transducer in the form of a resistive heating element connected to a source of power and a pair of switches, all arranged in series with the power source. One switch comprises a motor driven time indicator and the other switch comprises a timer which is manually latched closed and automatically unlatched upon closure of the time indicator. The duration of time during which the latter switch remains closed after unlatching may be adjusted.

Abstract: A slug is disposed adjacent a rotor of an induction type motor. The slug is of a "ferrous" material such that the attraction between it and the magnetic poles of the rotor creates at least side and preferably both side and end loading of opposed ends of the rotor shaft within its supporting bearings. The slug, disposed stationarily in spaced relation to the rotor, is of a length approximately equal to the length of a chord through adjacent magnetic poles. The action of the slug is to reduce bearing rattle in a rotating member.

Abstract: An electronic system having a chime and strike program simulating the program of a Westminster clock including an actuating source, a solid state integrated circuit and a loud speaker. The integrated circuit includes a plurality of counters for activating a frequency synthesizer and both tone switching and generating circuits thereby to generate the strike and chime program on the hour and a chime program on the other quarter hours indicative of the time throughout a 24-hour period. The chime program is sequenced by a chime matrix.

Abstract: An indexing apparatus for changing automatically and rapidly calendar information of a clock includes an indexing assembly having both day and date means, each engageable with for driving respective day and date discs provided with calendar indicia. A cam driven by the drive train of the clock mechanism rotates through a full revolution each 12-hour period. A member including a plurality of gear teeth arranged in a sector is mounted for pivota movement against the bias of a spring which positions the member in the path of movement of the cam. The indexing assembly, further, includes an element formed by a disc and a sector gear which is driven in opposite directions by the member whose gear teeth are in driving engagement therewith. The disc of the element includes a pair of substantially diametrically oppositely disposed notches having oppositely inclined ramps between the upper and lower surfaces of the clutch disc.

Abstract: Apparatus capable normally of presentation of time in hours and minutes and upon command of other functions, such as miles before service is required and days before service is required. The apparatus includes at least one logic integrated circuit for providing required frequency division of various inputs, a storage for accumulating information received from the integrated circuit and for retaining the information over a period of time even though power to the circuit is interrupted, a power supply and a display for displaying information on demand.

Abstract: A housing includes a compartment into which a battery is received and an ejector mechanism formed integrally therewith. The ejector mechanism is formed by a pair of lever arms extending from a hinge in one wall of the compartment. One lever arm extends from the compartment wall while the other lever arm follows the compartment wall, terminating at a location below the battery. Finger pressure on the former lever arm results in the ejector mechanism pivoting about the hinge so that the latter lever arm engages with to partially eject the battery supported by the housing between a pair of terminals from the compartment. The terminals each carry a raised rounded portion on a spring arm contacting the battery. The raised rounded portions act as obstructions so that the battery, once ejected, is not permitted to return to the supported position.

Abstract: A day-date mechanism which includes an annular "day" ring and an annular "date" ring having adjacent circles of pointed drive teeth and with an associated viewing window for display of day and date side by side. A rotary index pawl coupled to the drive train by a one-way intermittant motion transmitting connection produces an active stroke of movement once every 24 hours. Detent springs for the respective rings engage the drive teeth for completing each step of indexing movement. A manual reset lever is separately engageable with the respective rings for indexing the rings individually into set positions. The nature of the drive connection permits indexing of the rings by the manual reset lever at any time regardless of the position of the index pawl.

Abstract: The firing circuit serves to interface a load circuit including a semiconductor device capable of large load currents and a control circuit operating at logic power levels and provides a relatively low current output to the gate terminal of the semiconductor device, which may be a triac, for controlling the load circuit.

Abstract: A low power synchronous motor is disclosed having a rotor including a pair of rotor discs between which is sandwiched a permanent magnet which is polarized such that one of the rotor discs is a north pole and the other is a south pole. The stator includes an energizing winding having a core passing therethrough. A pair of complementary stator plates are secured at each end of the energizing winding to the core and are bent at right angles to form a copolanar stator air gap portion. The coplanar portion of the stator has a notched, circular air gap into which the rotor is positioned. The flat stator plates provide for easy assembly of the motor in a clock movement. The electrical energy coupled to the energizing winding is attenuated by means of a pair of impedance elements connected in series with the energizing winding and situated in the plug of the energizing circuit.

Abstract: A low power synchronous motor is disclosed having a rotor including a pair of rotor discs between which is sandwiched a permanent magnet which is polarized such that one of the rotor discs is a north pole and the other is a south pole. The stator includes an energizing winding having a core passing therethrough. A pair of complementary stator plates are secured at each end of the energizing winding to the core and are bent at right angles to form a coplanar stator air gap portion. The coplanar portion of the stator has a notched, circular air gap into which the rotor is positioned. The flat stator plates provide for easy assembly of the motor in a clock movement. The electrical energy coupled to the energizing winding is attenuated by means of a pair of impedance elements connected in series with the energizing winding and situated in the plug of the energizing circuit.

Abstract: An emergency alarm system for detecting smoke in remote areas and for transmitting an indication of detected smoke, either via communications channels already within a facility being protected or by way of telemetry to an alarm indicating device. A fault detector is also provided for indicating when any component of the system becomes defective or otherwise nonfunctional. More specifically, a plurality of smoke detectors of the ion chamber type are positioned at strategic points within a facility to be protected. When any one of the smoke detectors is appropriately activated by smoke, an output in the form of a time duration modulated ultrasonic signal is generated, which is coupled via telemetry or communications channels within the facility being protected to a responder unit which is provided at a central location. If the generated signal persists longer than a predetermined time, an alarm indicator is energized to indicate that smoke is present at one of the smoke detectors.

Abstract: A portable magnetic tool device adapted for adjusting the position of a movable magnetic member or the like. The tool device essentially comprises a portable support means, at least a first magnetic means connected to the portable support means having a first magnetic charge or field which enables selective adjusting of the position of the movable member, and shield means operatively connected to the portable support means and, at least, partially surrounding the first magnetic means for movement between shielding and non-shielding positions, such that whenever in the non-shielding position the first magnetic charge is able to appropriately adjust the position of the movable member.

Abstract: A motor system having interchangeable modular components including a prime mover, a speed reduction unit, an output shaft and detachable electrical leads is disclosed. Various combinations of components easily may be mounted together to meet specific power input and output speed requirements as well as to provide various output shaft style configurations for driving connection with a driven member. The output shaft is releasably locked to the gear reduction unit and has means for coupling the output shaft to the output gearing.

Abstract: A clock "friction" for use in clocks having plastic gear wheels which permits manual setting of the hands but in which a reliable level of frictional torque is obtained without requiring use of any auxiliary parts. The centerwheel of the clock has an interference fit with respect to the center, or minute hand, shaft upon which it is telescoped, and the minute hand shaft is formed with an annular groove lying generally in the plane of the centerwheel into which the plastic relaxes and flows for maintaining the centerwheel in a desired axial position. The minute hand shaft has a setting knob, and means are provided for precluding axial shifting of the center shaft, by pushing or pulling, which might result in stripping of the plastic in the groove.