kaleidograph

noun3

1. •
   A device for projecting the colorful patterns produced by a kaleidoscope.

   • Electrical experiments were provided by Mr J. P. Capon, who had a powerful battery at work, and the kaleidograph, lent by Mr. G. Nash, was a never-ceasing source of fascination. — 1874
2. •
   (figurative) A changing visual display.

   • Swayed by the kaleidograph of inner suggestion primitive tribes abandon themselves hour after hour to the festal chants until the performers reach the point of fatigue, — 1911
3. •
   A late 19th or early 20th century device for duplicating documents that use colored ink, consisting of a tray with a rubbery substance that takes an impression of the document and then transfers it onto blank sheets of paper.

   • The Kaleidograph is claimed to be the only apparatus of the kind adapted for use in all temperatures from 20⁰ to 90⁰. — 1880