Improvements in the Manufacture of Tiles, Ceramic Mosaic and the like, and in Apparatus therefor.
Year: 1891

page_text: Date of Application, 7th May, 1891
Complete Specification Left, 29th Oct., 1891-Accepted, 5th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Tiles, Ceramic Mosaic and
the like, and in Apparatus therefor.
We, CRAVEN DUNNILL AND COMPANY LIMITED, of the Jackfield Works,
Jackfield, in the County of Salop, Encaustic, Geometric and Ceramic Mosaic
Manufacturers, and FRANCIS RAWDON SMITH, of Ironbridge in the County of
Salop, Assistant Manager to the aforesaid Company, do hereby declare the nature
of this invention to be as follows:-
This invention relates to the manufacture of tiles, ceramic mosaic and the like,
the object being to prevent the edges of the tiles or other ceramics from breaking
or chipping in wear and to afford means for more securely fixing the tiles or other
ceramics in their beil.
For this purpose we make the tiles or the like with their sides inclined or curved
outwards from the face or back or face and back instead of being at right angles
thereto as heretofore, the moulds or dies being correspondingly shaped for this
purpose.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Tiles, Ceramic Mosaic and
the like, and in Apparatus therefor.
We, CRAVEN DUNNILL AND COMPANY LIMITED, of the Jackfield Works,
Jackfield, in the County of Salop, Encaustic, Geometric and Ceramic Mosaic
Manufacturers, and FRANCIS RAWDON SMITH, of Ironbridge, in the County of
Salop, Assistant Manager to the aforesaid Company, do hereby declare the nature
of this invention, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention relates to the manufacture of tiles, ceramic mosaics and the like.
Hitherto in the manufacture of tiles, mosaics and such like objects it has been
usual to make the sides thereof at right angles to the faces and backs. With this
construction, however, it is found that the edges of such objects frequently become
broken or chipped and furthermore that they frequently become loose in the bed in
which they are laid.
The object of this invention is to prevent such breaking or chipping of the edges
by wear, and to afford means for more securely fixing the tiles or mosaics in their
bed, and to this end we make the tiles, mosaics or the like with inclined or curved
sides or edges in such a manner that the bottom or some point in the depth of a
tile is of larger dimensions than the wearing face thereof.
In the accompanying drawing,
Figures 1, 2, 3, 4, 5, 6, 7 and 8 shew different forms of tiles or mosaics, in all of
which it will be noticed that the upper or wearing surface is of less width than
some portion below it.
These tiles or mosaics are advantageously formed between dies of the kind
shewn in Figure 9, in which a indicates the upper die, 6 the lower die, and c the
box in which the said dies slide. As represented in Figure 9 the dies are designed
to produce mosaics of the shape shewn in Figure 1, and for this purpose the

page_text: upper die is provided with a bevelled lip or flange d whilst the lower die is
made flat.
It is obvious, however, that'dies can be readily shaped to produce mosaics of the
other forms shewn or of any other similar shape.
Figure 10 shews in section a pair of dies and box of similar construction to those
shewn in Figure 9 except that, instead of being capable of producing one mosaic
only at a time, they are capable of producing several.
It is obvious that, when a number of mosaics are placed upon a suitable bed and
secured by cement, owing to the fact that such cement can enter between the edges
of the mosaics, the said edges will be supported; and also that, as the smallest parts
of the mosaics are uppermost, they cannot become displaced.
Having now particularly described and ascertained the nature of our, said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :
The manufacture of tiles or mosaics with inclined or curved sides or edges, sub-
stantially in the manner herein before describe and illustrated in the accompanying
drawing.
Dated
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.