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It is a mechanism which is used trace a path to
an enlarged or reduced scale. It is an example
of four bar kinematic chain. It consists of a
four links joined in such a way to form a
parallelogram ABCD in which AB=CD and AD=BC. In
figure, OAE always remains in straight line.
Pantograph consists of four turning pair.
Applications of pantograph:
1.
It is used to guide the cutting tools.
2.
It is used for the reproduction of maps and
plans on enlarged or reduced scale.
3.
A modified pantograph is used to collect the
electric power at the top of an electric
locomotive.
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