Mazes and labyrinths; a general account of their history and developments (1922)
Matthews, William Henry, 1882- · London, New York, etc. Longmans, Green · leaf 296
Fig. 144.—Maze Toy byA. Brentano. (After PatentSpecification.) rolls a ball or a globule of mercury from the point markedA to that marked B, or vice versa. This was patented byS. D. Nix in 1891. A somewhat similar arrangement, but with the addi-tion of magnetism as the motive force, is that devised… … Fig. 145.—Maze Toy by S. D. Nix. (After Patent Specification.) case the maze is not flat but is in the form of a shallowdome; the balls are of iron and are rolled not by tiltingthe box but by moving a magnet beneath it. R. A. Cuthbert and W. Bevitt patented in 1889 a tovin which a ball, called The…
Labyrinths
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