Method of producing a plate with a decorative pattern in its surface
First Claim
1. A method of producing a decorative pattern on the surface of a layer of material in a soft, plastic condition, said method comprising whipping said layer surface by the free end portions of a plurality of flexible thread-like members which are slung against the surface in a non-uniform manner and without abrading the surface, so as to make random depressions therein, and subsequently hardening said layer of material.
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Accused Products
Abstract
In order to produce a decorative pattern on the surface of a layer of material in a soft plastic condition, the surface is whipped by the free end portions of a plurality of flexible thread-like members. The whipping action provides random depressions in the surface. The thread-like members are preferably fastened to the peripheral surface of a rotatable body which is spaced from the surface to be treated at a distance which is substantially smaller than the length of the thread-like members, and the surface to be treated is moved in relation to the rotatable body while this body is rotated. By this whipping action it is possible to make surface patterns imitating a slaty surface or the surface of other natural materials. Such decorative surfaces may be made on layers of materials which are cut into plates or blocks for use as building materials after firing, setting or hardening of the material. As an example, the decorative pattern or structure may be made on plates to be used as roofing plates.
64 Citations
11 Claims
- 1. A method of producing a decorative pattern on the surface of a layer of material in a soft, plastic condition, said method comprising whipping said layer surface by the free end portions of a plurality of flexible thread-like members which are slung against the surface in a non-uniform manner and without abrading the surface, so as to make random depressions therein, and subsequently hardening said layer of material.
Specification