GB249499A - Improvements relating to switching devices - Google Patents

Abstract

249,499. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). March 21, 1925, [Convention date]. Switches, actuating. - In switching devices for converting the angular movement of an operating shaft into rectilinear movement of a biassed operated member such as the bridging bar of an oil-break electric switch which is raised against a biassing force, an operating shaft a carries the crank b which is connected to the reciprocable element d through hinged members c<1>, c<2>, means being provided for effecting relative rotation between at least two of the hinged members. In the form shown in Fig. 2, the crank b has a bracket e with an adjustable stop f adapted to bear against the member c<1> during the rotation of the crank so that the member d moves through a distance h<2>. If desired the number of hinged members may be increased and the projection e or a second projection on the crank b could be arranged to engage with a second of such members. Alternatively these projections may be secured to the hinged members themselves.