US1790227A - Ceramic tile - Google Patents

Description

CERAMIC TILE Filed gulyz, 1928 ATTORNEYS Patented Jan. 27,1931

UNITED STATES N ILS H. CEDERQUIST, 0F ALE-AMBRA, CALIFORNIA CERAMIC TILE L c Application mea July 2, 192s. serial No. 289,891.

This invention relates to a ceramic tile and the method of glazing the surface thereof. Ceramic tiles are now used for ornamental veneering and facing. It is especially desirable to have a shallow tile suit-able for attachment to backingswhich may be made of wood or like material so as to form panels easily installed. The face ofsuch tiles produce a pleasing eect, if they are sloped toward the edges and crowned. Furthermore, a 'glaze on the front face of such tile produces visually changing effects in accordance with the direction of light impingement, reflection and refraction. It is current practice to add powdered vitreous material having coloring matter to produce a striation or a'mottled effect. It is diicult to distribute this colored material over the face of the tile with uniformity and the ultimate appearance is dependent upon the skill displayed in initially positioning the vitreous coloring matter. By use of my improved tile, a flow of the vitreous matter in its fused state causes y the color to'be uniformly striated or mottled. The present invention has for its primary object the rovision of a tile of novel construction wiiich has a crowned face. Another object of this invention is to. provide a method of distribution of the'glaze and coloring to produce uniformity in depths and color effects. Y n Y These objects together with other objects and corresponding accomplishments are ob-V tained by means of the embodiment of my invention illustrated in the accompanying drawing in which:- n

Fig. l is a face view of a fragment of a panel having my improved tile thereon; Fig. 4o 2 is a section as seen on the lines correspond- Y ingly numbered in Fig. l.

Referring more particularly to the drawing and especially Fig. l, a backing of mul tiple ply wood is indicated by 5. This wood is preferably slotted and tied to'provide a neutralized backing. Tiles are secured there-V to by means of an adhesiveG which is preferably a yielding material so as to preventv cleavage of the tiles, chipping, cracking and breaking under climat-ic changes. vThe tiles are indicated by 7 and the joints are suitably A' i ,pointed with cement as indicated by 8.

tangular in transverse section and of'shallow depth. The base of the tile is flat as indicated by 9. The front face to be displayed and indicated by v10 is crowned with its sides "5 .K

sloping toward the base to produce a sym# metrical crown.V The frontface and edgesl are glazed. l l

In manufacture of the tile, the biscuit is rst formed. A number of biscuits are then "65 placed in a tray and powdered vitreous ma- Y terial sprinkled thereover. This vitreous material has matter which will cause color to appear in the glaze upon fusion. The tiles p so treatedare then placed in an oven and the '7b vitreous material fused. In the manufacture of my tile, the vitreous material may be placed at the peak of the crown and the biscuits maintained in horizontal position.

Upon the vitreous material fusing, it runs y-7'5 or Hows downwardly toward the base over the front face o-f the tile;V The action of gravity in causing the flow results in a uniform depth of the glaze and in striations being produced which center at the peak. If 3b the coloring vitreous material is not ofthe character top-roduce striation, but to produce a mottled eifectgthese spots areV distributed uniformly over. the surface. The tilewhen finished has a glazed surface, the appearance a5 Y of which is vchanged depending upon the play of light thereon and the angle of sight of the observer. Thereisa symmetrical vdistribution of the colors, and all this is made withy out any especialskill in thev distribution of,v ab the powdered vitreous matter.` v v VVha-t I claim Yis p Y y l. The method of making glazed tile which p comprises forming a Iceramic biscuit having a i crowned front face, positioning said biscuit c;

with its front face uppermost, placing vitreous material Von said front face, fusing s ald vitreous material to a fluent state and causing fused vitreous material to flow over said face..

2. The method of making glazed tile rroc 2` l' p f* 1,790,227

which comprises forming a ceramic biscuit having a, Hat base and a Crowned front face sloping toward the base, positioning said biscuit with its Jfront face uppermost and with its surface disposed symmetrical With respect to the horizontal, fusing said vitreous material to a fluent state, and causing the fused material to HOW over said front face under the action of gravity. V

In Witness that I claim the foregoing I have hereunto subscribed my name this 7th day of June, 1928.

NILS H. CEDERQUIST.

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