Abstract: A system for use with a locomotive or an off-highway vehicle (OHV) processor controlling an auxiliary device. A driver selectively energizes the auxiliary device. A driver switch for selectively activates the driver. A driver controller area network (CAN) microcontroller controls the driver switch. A panel switch selectively supplies power to the driver CAN microcontroller and the driver switch. A power distribution system connects the driver CAN microcontroller and the driver switch to the panel switch. A panel CAN microcontroller responsive to the processor controls the panel switch.

Abstract: A Precipitator Rapper is disclosed having a non-magnetic tube adjustably attached to a solenoid and a hammer extending through the solenoid and through the tube. The solenoid is adjustable toward and away from the precipitator and the tube has a removal cap on the end remote from the precipitator that can be removed so that an accurate measurement can be made from the hammer to the outer end of the tube. This enables a person to accurately adjust the hammer relative to the tube.

Abstract: An improved information storage and recovery system comprising a playback stylus, having a dielectric support element and a conductive electrode, and a grooved conductive disc record in which information is recorded. The information is recovered on playback while there is relative motion between the record surface and the stylus by sensing capacitive variations between the stylus conductive electrode and the record surface. The improvement comprises employing that angle between the electrode face and the record surface such that the respective paths of dielectric effects between the electrode face and the record surface both in the direction of relative motion and in the direction opposite the direction of relative motion are balanced.

Abstract: An electromagnet is disclosed. The electromagnet has a winding that is wet wound with an epoxy material filled with grains of a material having a high coefficient of thermal-conductivity. The entire winding is empotted dry in a similar epoxy having grains of the said material. Fins are connected to the outside of the dry empotment for carrying away heat transferred to the fins from the coil.