Apparatus for producing tesserae of glass mosaic containing a metal foil
AssigneeBISAZZA SpA
InventorsGiancarlo Bisazza, Aldo Besoli
Life of this patent
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Abstract
Method and plant to make tesserae (11) for glass mosaic, containing ornamental metal foil (14) inside. The method comprises the steps of positioning a first glass strip (30), with a metal foil (14) associated above, on a work plane (20) including first molding means (22), localized heating of the work plane (20) to obtain a softening of the first glass strip (30), casting a quantity of glass onto the metal foil (14), pressing the semi-worked product (29) in its plastic state, and molding the semi-worked product (29) to define the contours of the tesserae (11), by means of cooperation between second molding means (19) and the first molding means (22). One or more of the steps are performed sequentially in at least one work station (40-49).
Claims13
A plant for making glass tesserae used in creating mosaics, the tesserae having an ornamental metal foil disposed between an upper glass layer and a lower glass layer that are fused together, the plant comprising:
- a plurality of work planes each including a first mold, the first mold having an upwardly protruding grid that includes a plurality of vertical cutters which intersect in a substantially orthogonal fashion with a plurality of horizontal cutters;
- and
- a plurality of work stations for forming the tesserae, the plurality of work stations including at least a loading station for loading the lower glass layer in a substantially solid state onto the first mold, a subsequent heating station for softening the lower glass layer into general conformity with a shape of the first mold and a subsequent molding station that includes a second mold to be selectively activated and in cooperation with each of the first molds to mold the upper glass layer and position the tessarae between the first and second molds, the second mold having a downwardly protruding grid that includes a plurality of vertical cutters which intersect in a substantially orthogonal fashion with a plurality of horizontal cutters, the vertical and horizontal cutters of the first and second molds defining the size and shape of each of the tessarae,
- wherein the plurality of work planes are moved sequentially through the plurality of work stations.
Dependencies are inferred from the claim text.