In a Lever FrameA frame in which the levers working Signals and Points in an area are mounted together and Interlocked as required by the layout. More, a lever which is not used for the operation of any
signalling equipment. See also Lever (Worked To Maintain Locking)A lever not controlling any Signalling Function but remaining connected to the Mechanical Locking. It is not considered to be a Spare Lever. More.