Abstract: A wear-indicating brush and warning circuit is adapted to convey an indication that a dynamoelectric machine is in need of maintenance before the brush wears to the point that a rotor contact surface is damaged by contact with electrical connections to the brush. A brush (10) having current carrying pigtail leads (16) embedded therein includes a wear-detecting wire (20) embedded in the brush a short distance (A) beyond the lowest extent of the pigtail leads (16). The wire (20) is insulated over its periphery, including its tip (24), the insulation (26) being abraded by contact with the rotor contact surface (50), so that the wire (20) senses the voltage present thereon. Non-latching warning circuits (66, 66a), with and without the use of an isolating resistor within the dynamoelectric machine to permit the use of a single wire between the machine and the warning circuit to provide a brush wear indication.

Abstract: A container of the type known as a station wire box, from its application to dispensing wire for installation of telephone equipment on a user's premises, or station, is provided with an insert centrally located in one face of the box, for smooth manual dispensing of the wire, and perforations on the reverse side of the box. The perforations define a first area removable to form a combined access opening and carrying handle opening. The access opening allows access to ties binding a coil of wire, to remove the ties, and lead an end of the coil of wire through the insert. The reverse side also includes perforations defining areas adjoining the access opening which can be removed to form a circular opening in the box, equivalent in size to the circular opening in a conventional station wire box, so that the box can be used as a conventional station wire box.

Abstract: An electrophotographic typesetter including a scanning system having a light source, means for receiving said light from said source and rotationally scanning said light through a curvilinear scanning locus, means for receiving said curvilinear scanned light and redirecting the light onto a straight line scanning locus, said redirecting means redirecting the light at an angle to the incident light, said means for producing said curvilinear scanned locus having an axis of rotation, said means for redirecting having a center of curvature, and wherein said straight line scanning locus is on a plane passing through said center of curvature, and perpendicular to said axis of rotation.

Abstract: A method and means for improving the connection between a resistive core ignition wire and a terminal is disclosed. The improvement comprises placing a conductive metallic band around the outer insulation of the wire after exposing the core, and folding the core back over the conductive metallic band before crimping the terminal in place. The invention is best suited for use with ignition wire of the type having a conductive elastomeric or polymeric coating around the central core, and eliminates possible loss of electrical contact between the core and the terminal which may occur due to plastic deformation of the wire at elevated temperatures.

Abstract: A breakerless magneto ignition system for an internal combustion engine, having an inherent speed limiting feature is disclosed. The ignition system includes an ignition coil with primary and secondary windings, a drive winding and a trigger winding. A first solid state switch is placed in circuit with the primary winding for controlling current flow through the primary winding, the drive winding controlling the solid state switch to render it conductive to allow current flow through the primary winding, and the trigger winding and an associated switching circuit subsequently shunting the input to the first solid state switch to render it nonconductive, to block current flow through the primary coil and induce an ignition spark voltage in the secondary winding. The primary winding, secondary winding and drive winding are mounted on the same magnetic frame adjacent a magnet-containing flywheel, and the trigger coil is mounted on the lower edge of the secondary winding in close proximity to the flywheel.

Abstract: An electrophotographic typesetting system having a scanning means for scanning a light sensitive image support surface with an information containing light beam and for imaging said information on said surface, said system having means for driving the light beam through a curvilinear light path, means for converting said curvilinear light path to a straight line scanning locus at said surface, means supporting said surface and moving said image support surface, means providing information in digitized format including means for providing first digital data defining the identity and location of characters, font storage means providing data defining the contour of a plurality of characters with respect to a normalized encoded set of first and second coordinates, digital processing means connected to said first and second digital data for producing third digital data defining said characters, means for modulating the light beam responsive to said third digital information, said system including an optical assemb

Abstract: This invention relates to an improved armature for a four pole wave wound direct current machine and also to a method for winding the armature for such a machine. A plural turn winding is free formed or wound in place to substantially a final shape with two ends spaced for connection to commutator segments spaced substantially 180.degree. apart on the armature and with at least four sides defining at least two open turns. The winding sides are spaced for engaging slots in the armature core which are spaced substantially 90.degree. apart. The winding is initially free formed and the turns are separated as necessary to insert the winding on the core and to position the winding sides in their assigned slots in the armature core.

Abstract: A relay is provided for reversing the direction of current to an electric motor and providing for dynamic breaking when power is disconnected. The contacts are cantilevered from a pivoting support driven electromagnetically. Mounted inwardly of the cantilevered contacts, are a pair of cantilevered springs. Each cantilevered spring is adjacent to, and associated with, a respective cantilevered contact. When the relay is energized, displacing one of the cantilevered contacts, a respective cantilevered spring is deflected against the cantilevered contact to provide a force additional to the force induced by the cantilevered contact support. Additionally, a fulcrum is provided for supporting pivotal movement of an armature supporting the cantilevered contacts, and which is combined with the magnetic flux path of the relay.

Abstract: A brush cage for an electric motor wherein the brush sets are mounted on two assemblies. One assembly is mounted to the frame and the second assembly is mounted to a removable frame end plate, which when removed, provides access to the first assembly and commutator. Each assembly includes an electrically conductive ring upon which the brushes are mounted. The brushes are electrically interconnected through the ring upon which they are mounted. The rings are in a spaced relation to each other along the commutator rotational axis and are on substantially parallel planes which are perpendicular to that axis. The brushes on one ring fit between the brushes on the other ring so as to be disposed around the commutator in an inter-leafed pattern within the space between the two rings.

Abstract: The output shaft of an electric motor is supported by a ballbearing mounted on the motor end plate. The outer race of the ballbearing is positioned in a cup having a semispherical portion. The motor end plate includes a socket portion to receive the semispherical portion of the cup. A retainer plate of spring metal is mounted on the motor end plate. A plurality of resilient finger-like extensions on the retainer plate press the outer race in the cup and the cup in the socket. The cup swivels in the socket. By reason of that, the outer race can be shifted with respect to the inner race, and the entire bearing can be shifted with respect to the motor end plate. A collar, containing a plurality of legs, the ends of which define a plane perpendicular to the shaft axis, is slid down the shaft. The legs pass through a like plurality of holes located in the end plate to contact the cup. Pressing the legs against the cup causes it to swivel in the socket until all the legs contact the cup.