Improvements in Apparatus for the Manufacture of Tiles.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Apparatus for the Manufacture of Tiles.
3.1.
I, WILLIAM HEWITT, trading as Godwin & Hewitt, of Victoria Tile Works, Hereford,
in the County of Hereford, Tile Manufacturer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to apparatus for the manufacture of undercut tiles, the object
of the improvements being to simplify the construction of the apparatus.
According to my present improvements 1 employ a solid die, the face of which is
formed with undercut projections or grooves into which the dust is pressed, and the
die and bottom plate being raised in the usual manner, the pressed tile can be removed
by drawing it forward horizontally and then lifting it diagonally upwards.
Dated this noth
1907
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
Improvements in Apparatus for the Manufacture of Tiles.
I, WILLIAM HEWITT, trading as Godwin & Hewitt, of Victoria Tile Works, Hereford,
in the County of Hereford, Tile Manufacturer, 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 apparatus for the manufacture of undercut tiles, the object
of the improvements being to simplify the construction of the apparatus.
According to my present improvements I employ a solid die or bottom plate the
face of which is formed with undercut projections or grooves into which the dust or
material of which the tiles are formed is pressed, and the die or bottom plate being
raised in the usual manner, the pressed tile can be taken off by lifting it in a lateral
and upward direction.
To enable my invention to be fully understood I will describe the same by reference
to the accompanying drawing, in which :-
Figure is a sectional elevation shewing my improved die in the mould box; and,
Figure 2 is a plan of the die :
Figure 3 is a view of the rear side or back of a tile formed upon the improved die ;
and,
Figure 4 is a section of the said tile on the line 4-4:
Figures 5, 6 and 7 are plan views illustrating slight modifications in the construction
of the projections or grooves.
Similar letters of reference indicate corresponding parts in the several figures.
a is the die and is the mould box in which the said die is adapted to be
moved by any suitable means. c is the presser for compressing the material, of
which the tiles are formed, into the mould. d, d are the ribs or projections upon
[Price 81.1

page_text: the surface of the die a and e; e are the grooves between the said ribs and which
as shewn in Figures 1 and 2 are parallel with one side of the die. These ribs are
undercut on one side to form lips e¹ and the tops or shoulders of the ribs and the
bottoms of the grooves are rounded as shewn in Figure 1 so that the highest parts
of the shoulders and the deepest parts of the grooves are a short distance back
from the lips as clearly shewn in Figure 1.
It will be obvious that the tile moulded on this die will have ribs f,f corresponding
with the grooves e, e the said ribs on one side having undercut lips as clearly shewn in
Figures 3 and 4, to correspond with the undercuts on the ribs d, d.
The die shewn in Figure 5 only differs from that shewn in Figures 1 and 2 in
that a central groove or slot g is formed at right angles to the ribs. The die
shewn in Figure 6 has the ribs arranged in a diagonal direction upon the die and
the die shewn in Figure 7 has right angled ribs formed thereon.
In removing a tile from the die the latter is first raised to bring the tilo above
the top of the mould box and then the tile is moved laterally upon the die in a
direction to free it from the undercuts and then lifted, the rounded shape of the
ribs and grooves permitting of this lateral movement without abrading the back
of the tile or destroying the sharpness of the lips thereon.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
In apparatus for the manufacture of tiles a solid die or bottom plate the face of
which is formed with undercut projections or grooves, substantially as, and for the
purpose, described.
сто uay or may 101.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.