A former name for a pantograph (pantograph, n. 1). Obsolete.

An instrument for the mechanical copying of a plan, diagram, pattern, etc., esp. on a different scale, typically with two drawing points connected…

= pantograph, n. 1. Obsolete. rare.

= proportional compass n. (b) at proportional, n. adj.compounds; cf. reduction compass n. at reduction, n. compounds 2.

gen. One who or that which traces lines or makes tracings; spec.. A mechanical contrivance for making tracings on a larger or smaller scale.

(See quot.)

(a) any of various machines used to produce a reduced-scale model of an object, esp. one used to produce templates for coin manufacture; (b) any…

= proportional compass n. (b) at proportional, n. adj.compounds; also in plural in same sense; cf. reducing compass n. at reducing, n. compounds 2.

An instrument for enlarging or reducing drawings; spec. one consisting of a ruler marked with two different scales placed end to end (one having…

an instrument for copying any outline or plan on the same or a larger or smaller scale.