Importance

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Abstract

A railway switch circuit controller having a housing with a bottom surface and opposed side surfaces. The bottom surface has a raised planar boss provided thereon, in which the raised boss is cast upon the bottom surface and is then machined so as to have a flat surface and a selected height. The side surfaces have respective openings provided therethrough for receiving a shaft. The shaft is rotatably disposed through the side surface openings and has one or more cam segments disposed thereupon. Each cam is engageable with a follower in which the follower is biased to a first position but rotation of the shaft causes the cam to move the follower to a second position. The follower is connected to a movable contact of a contact spring assembly. The contact spring assembly also has one or more sets of first and second generally nonmovable contacts in which the movable contact is disposed between the two nonmovable contacts. The contact spring assembly is secured to a terminal board. The terminal board has a planar portion that is matable and is secured to the raised boss of the controller housing bottom surface.

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First Claim