Improvements in the Manufacture of Earthenware Quarries or Tiles.
Year: 1889

page_text: Date of Application, 20th June, 1889
Complete Specification Left, 27th Feb., 1890-Accepted, 19th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Earthenware Quarries or
Tiles.
We THE BROSELEY TILERIES COMPANY Limited, of the Broseley Tileries, Broseley
in the County of Shropshire, Brick, Tile and Encaustic Tile Manufacturers, and
JOHN CHUMP of Dunval Shropshire Director of the above named firm do hereby
declare the nature of this invention to be as follows:-
These improvements have reference to the manufacture of quarries or similar
descriptions of tiles used for flooring and other purposes.
The object of the invention is to produce a novel and beautiful effect in various
colours or shades of colours which may be described as a mottled surface-say of a
granitic appearance of any desired shade-and yet without formal admixture of
constituent colours.
In carrying out our invention and in order to attain a desired result we make a
combination of various clays somewhat as follows, that is to say for a quarry exhibiting
in the finished article a beautiful effect mainly composed of grey tones we take
[ (say) 2 parts of ground fire clay and (say) 1 part of black dust (consisting of (say)
876 parts of tile clay 1344 parts stocking clay 96 parts of manganese and (say)
55 parts of ground iron-stone).
For the like effect red colour predominating we take (say) 99 parts of ground tile
clay and 1 part of red dust (consisting of (say) 12 parts of stocking clay and say
8 parts of tile clay).
These are mixed together and pressed in dies substantially in manner usual in like
manufacture and then burnt in kilns of substantially ordinary construction.
The proportions of these materials as herein specified may be somewhat varied in
order to vary the eventual result.
1000
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Earthenware Quarries or
Tiles.
We THE BROSELEY TILERIES COMPANY Limited, of the Broseley Tileries, Broseley
in the County of Shropshire, Brick, Tile, and Encaustic Tile Manufacturers, and
JOHN CRUMP of Dunval, Shropshire, Director of the above named firm, 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:
These improvements have reference to the manufacture of quarries or similar
descriptions of tiles used for flooring and other purposes. The object of the invention
is to produce a novel and beautiful effect in various colours or shades of colours
which may be described as a mottled surface say of a granitic appearance of any
desired shade and yet without formal admixture of constituent colours. In carrying
out our invention and in order to attain a desired result we make a combination of
various clays somewhat as follows, that is to say for a quarry exhibiting in the
finished article a beautiful effect namely composed of grey tones, we take (say)
3 parts of ground fire clay and (say) 1 part of black dust (consisting of, say, 876 parts
tile clay, 1344 parts stocking clay, 96 parts of ground manganese, and say 55 parts
of ground ironstone) and, say, 1 part of white dust (consisting of, say, 104 parts

page_text: China clay, 94 parts flint, 56 parts ground Jersey stone, 46 parts pipe clay and, say,
75 parts ground felspar). For the like effect red colour predominating we take,
say, 3 parts of ground tile clay, 1 part of red dust (consisting of, say, 12 parts of
stocking clay, and, say, 8 parts of tile clay) and, say, 1 part of white dust (consisting
of the same ingredients, and in like proportion as that used in producing the grey
quarry).
These are mixed together and pressed in dies substantially in manner usual in like
manufacture and then burnt in kilns of substantially ordinary construction.
By the term stocking clay we mean to refer to such clay as is obtained at the
Stocking Pit Broseley or we may use such like clay as is obtainable at the Deep Pit
Broseley or other ordinary Broseley clays extensively used in that district and
obtained at various pits; and by the terms ground manganese, ironstone, Jersey stone,
felspar and tile clay we mean to refer to matters commonly known by those respective
terms by those acquainted with or engaged in the manufacture of quarries or tiles of
the character described and used to mixing such bodies. The proportions of these
materials as herein specified may be somewhat varied in order to vary the eventual
result, provided the proper extent of burning (easily ascertainable by treatment of a
sample) be afforded accordingly. Thus for instance, if the component parts of the
red dust be varied (say) by employing 8 parts of stocking clay and 12 parts of tile
clay (reversing the proportions above given) the mixture would be burnt in a much
hotter part of the kiln.
Having now particularly described and ascertain the nature of our said Inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
-
1. The herein before described method of manufacturing earthenware quarries or
tiles for flooring and other purposes so as to produce novel and beautiful effects, such
as the mottled appearance of a granitic surface, by the combination of various clays
without the formal admixture of the constituent colours, or any mere modification
thereof.
2. As a new article of manufacture a tile or quarry presenting the appearance of
granite or other mottled surface for flooring or other purpose, produced by the
combination of various clays substantially as herein before described without the
formal admixture of the constituent colours.
Dated the 27th day of February 1890.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicants.