Improved Dies for Bricks.
Year: 1889

page_text: Date of Application, 7th June, 1889
Complete Specification Left, 11th Feb., 1890-Accepted, 7th June, 1890
PROVISIONAL SPECIFICATION.
Improved Dies for Bricks.
I SAMUEL JOSEPH WILSON, New Swannington, Leicestershire, Joiner, do hereby
declare the nature of this invention to be as follows:-
Each die is made of an outer frame or case of wood lined with sheet iron, the
interior of each die being of the same shape, but somewhat larger than the bricks
to be made, the whole of the corners in the interior of the die are grooved to a
depth of one eighth of an inch more or less at about five eighths of an inch apart,
each groove being made gradually shallower until it dies out on the surface before
reaching the deeper edge of the next groove, the length of each groove will depend
upon the shape of the brick to be produced. If a square or rectilinear shaped die
the grooves will be about two inches long. These grooves are fed with water,
which is passed through a hole in the top of the outer case of each die at or
near the centre of its length and width, from the hole a groove extends right
and left to the opposite corners of the case, from the corners the water runs
down two grooves at each end of the case to supply the grooves at the bottom.
From the grooves in the outer case the water passes into the shallow grooves
in the interior of the die. By which means the whole surface of the die is
lubricated and affords an easy passage for the clay as it is forced through by
the worm of the pug mill at the back.
Dated this Sixth day of June 1889.
H. W. GOUGH, C.E.,-
Agent.
COMPLETE
SPECIFICATION.
Improved. Dies for Bricks.
I SAMUEL JOSEPH WILSON, New Swannington, Leicestershire, Joiner, 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:-
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a front view of one of my improved dies for common bricks.
Figure 14, a sectional view on the lines H H Figure 1 showing a plan of the
bottom of the die.
Figure 24 shows a sectional view through the centre of the top.
Figure 34, a cross section on the lines G G Figure 1ª.
Figure 5 a front view of an improved die for bull nose bricks.
Figure 6 a front view of an improved die for double angled bricks.
Figure 7 a side view of the front portion of a pug mill with one of my improved
dies bolted to it.
Each die is made of an outer frame or case A of wood, see Figures 1, 14, 24, 3ª lined
with either sheet iron or brass plates B, the interior of each die being of the same
shape but somewhat larger than the bricks to be made. At the whole of the corners
in the interior of the die the plates are grooved through, instead of being left plain as
heretofore the front side of each groove C being made gradually shallower until it
dies out on the surface before reaching the deeper back edge of the next groove, the
length of each groove will depend upon the shape of the brick to be produced. If
a square or rectilinear shaped die, some of the grooves will be about two inches long
and the others somewhat shorter.

page_text: In a front of the plates B, the mouth of the die is provided with steel plates D.
The grooves are fed with water which is passed through a hole A' in the top of the
outer case of each die at or near the centre of its length and width, from the hole
grooves A extend right and left to the opposite corners of the case, from the corners
the water runs down two grooves A³ at each end of the case, see Figures 1 and 14,
into grooves A* see Figures 1, 1A, to supply the grooves at the bottom. From the
grooves in the outer case the water percolates through the meshes of sheets of brass
gauze Eshown by idotted lines at Figure 14, into the shallow grooves C in the
interior of the die.
.
The grooves C at the upper and lower corners at the ends of the die are supplied
with water which percolates through sheets of brass gauze from grooves A which
run into each as shown by dotted lines at Figure 34.
The sheets of brass gauze in each variety of die is placed next the interior of the
wood case over the grooves C before the iron or brass plates B and the steel plates D
are secured in position, after which the front of each die is provided with brass face
plates E¹.
The dies shown at Figures 5 and 6, constructed in like manner, are each provided
with a hole A¹ grooves A³, A³, A' with gauze between the plates B and the outer
wood casing A.
Dies constructed as above described for producing bricks of any form have the
whole interior surface lubricated so as to afford an easy passage for the clay as it is
forced through by the worm of the pug mill at the back.
At Figure 7 one of my improved dies A is shown secured to the front of a pug
mill F. the die being supplied with water through a supply cock F, G shows the clay
- being forced through the die, and G₁ the wires usually employed to divide the clay to
the thickness required.
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.
The construction of dies for bricks substantially as described and illustrated in the
Drawings annexed, for the purpose. specified.
Dated this Tenth day of February 1890.