Topographical display device

Claim 1

A device for displaying topographical features, comprising in combination a substantially rectangular casing of artificial material including integrally a bottom, vertical side walls and a horizontal flange affixed to the upper rims of the side walls, and a cover plate removably disposed upon the horizontal flange of the side walls for encasing a terrain of kneadable mass, including a mixture of sawdust particles, and an evaporationresistant liquid for the kneadable mass, means for representing further elongated parts, a flexible elongated enclosure retaining the elongated parts in spaced relationship therein, neck-like parts between the elongated parts for chain-like relation to the latter, the elongated chain-like parts comprising at least three such chain-like parts, one chain-like part being colored black for indicating ways, the second chain-like part being colored blue for indicating rivers, the third chain-like part being colored alternately black and white for indicating railways on the terrain.

Claim 2

A device for displaying topographical features, comprising in combination a substantially rectangular casing of artificial material including integrally a bottom, vertical side walls and a horizontal flange affixed to the upper rims of the side walls, and a cover plate removably disposed upon the horizontal flange of the side walls for encasing a terrain of kneadable mass, including a mixture of sawdust particles, and an evaporationresistant liquid for the kneadable mass, means for representing further elongated parts, a flexible elongated enclosure retaining the elongated parts in spaced relationship therein, neck-like parts between the elongated parts for chain-like relation to the latter, the elongated chain-like parts comprising at least three such chain-like parts, one chain-like part being colored black for indicating ways, the second chain-like part being colored blue for indicating rivers, the third chain-like part being colored alternately black and white for indicating railways on the terrain.

Claim 3

A device for displaying topographical features, comprising in combination a substantially rectangular casing of artificial material including integrally a bottom, vertical side walls, and a horizontal flange affixed to the upper rims of the side walls, for encasing a terrain of kneadable mass, including a mixture of sawdust particles and an evaporation-resistant liquid for the kneadable mass, means for representing further elongated parts, a flexible elongated enclosure retaining the elongated parts in spaced relationship therein, neck-like parts between the elongated parts for chain-like relation to the latter.

Claim 4

A device for displaying topographical features, comprising in combination a substantially rectangular casing of artificial material including integrally a bottom, vertical side walls, and a horizontal flange affixed to the upper rims of the side walls, for encasing a terrain of kneadable mass, including a mixture of sawdust particles and an evaporation-resistant liquid for the kneadable mass, means for representing further elongated parts, a flexible elongated enclosure retaining the elongated parts in spaced relationship therein, neck-like parts between the elongated parts for chain-like relation to the latter.