pantograph
/ˈpantəɡrɑːf
/noun
1An instrument for copying a plan or drawing on a different scale by a system of hinged and jointed rods.Shortly before dusk, he arrived at the Maryland State House clutching two homemade drawing instruments, a simplified camera obscura and a modified pantograph....
- The pantograph was a movable parallelogram that could be mounted on a drawing board or stationed atop a table, as in the frontispiece to Scheiner's Pantographice.
- Wallace also invented the pantograph, an instrument for duplicating a geometric shape at a reduced or enlarged scale.
2A jointed framework conveying a current to a train, tram, or other electric vehicle from overhead wires.The electric part is that it uses a pantograph or roof mounted current collector to pick up electricity from the overhead catenary or wires....
- The pantograph feeds the electricity from the overhead supply to the train.
- Currently in the open air, and unprotected from the tropical atmosphere, are four abandoned diesel electric locomotives, an oil tanker wagon, a steam crane and a General Electric pantograph power unit from 1924.
Derivatives
pantographic
- These artists - St-Gaudens, Weinman, Fraser, MacNeil, de Francisci - created oversize models which were pantographically reduced.
- Type produced by pantographic reproduction (scaling a master drawing to many different sizes), and the later technologies of photocomposition and digital type, allowed working from a single master design regardless of the size of the final application.
Origin
Early 18th century: from panto- 'all, universal' + Greek -graphos 'writing'.
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