Switch

Abstract: The acceleration and/or braking system consists of a number of linear induction stators (51) each with several primary stator coils and each stator coil magnetically coupled with other primary stator coils. Pairs of primary stator coils are located along a section of rail track and exercise a magnetomotive force on selected wheel sets of railway wagons there being at least three of the linear induction stators on one side of a rail track. A controllable power supply (53), preferably powered from a three phase a.c. supply, supplies the linear induction stators with a control circuit (57) controlling the current to the stators so determining the magnetomotive force applied to the selected wheel set. At least one sensor (67) is provided for detecting selected railway wagon parameters and provides the control signal for the control circuit.

Abstract: A rotary device acts as a switch and relay for manual or remote operation with the use of a rotary solenoid and a unique ratchet and automatic electrical contact opening and closing mechanism. The ratchet coacts with a spring loaded drive bar mounted perpendicular to a central axis of a rotary switch shaft. The drive bar is biased toward a ratchet face which carries a plurality of angularly arranged inclined surfaces. A detent wheel is fixed to the shaft with a pair of springs maintaining the detent wheel in a first position. A rotary solenoid is attached to the ratchet wheel and acts to drive the ratchet wheel to in turn cause rotation of the detent wheel and changing of switch positions. An automatic electrical contact opening and closing mechanism used with the rotary selector switch relay device has a first spring urging a contact arm and contact into a first position with the contact in electrical engagement with a fixed contact. A second spring is mounted to assert a second spring force on the contact arm opposed to the urging of the first spring at a preselected time. The second spring force builds in magnitude upon pivoting of the cam track carried by a track arm to overcome the first spring force at a preselected time and cause snap disengagement of the contact and fixed contact.

Abstract: An eyewear control system for a variable transmittance optical filter assembly configurable to cover at least a portion of a lens of an eyewear device. The eyewear control system includes a controller communicatively coupled to a pair of load terminals. The eyewear control system also includes a light sensor communicatively coupled to the controller to provide a detector output signal, the light sensor being positioned to receive sunlight transmitted through the optical filter assembly and towards an eye of a person wearing the eyewear device, the detector output signal being set in dependence on an amount of sunlight received by the light sensor. The eyewear control system also includes a memory communicatively coupled to the controller and having encoded thereon computer program code executable by the controller to transition the optical filter assembly between operating states when coupled to the pair of load terminals. The controller is operable to vary a voltage across the load terminals in dependence on the detector output signal to vary an amount of sunlight transmitted to the eye by the optical filter assembly.

Abstract: My invention relates to a gauge plate assembly for railway switches, and particularly to a gauge plate assembly which can be adjusted for use with any size of stock rail and with either a right-hand or a left-hand turnout. It is a common expedient in railway switch layouts to provide one or...