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A box drawn beside a set of points.
Also known as: Switch machine symbol, Motor symbol on a track diagram
A signalling diagram symbol for the machine that moves and locks a set of points.
Marks the machine that moves and locks a set of points on a signalling diagram.
Contexts: Technical drawing
Is drawn beside the points rather than on them, distinguishing the equipment that moves the track from the track it moves.
Contexts: Technical drawing
A small rectangle drawn alongside the diverging track lines, connected to them by a short stroke.