Year: 1887

page_text: Date of Application, 10th Nov., 1887
Complete Specification Left, 8th Aug.. 1888
Complete Specification Accepted, 21st Sept., 188
I, ALEXANDER PATRICK, of 16 St. Enoch Square, Glasgow, in the County of
Lanark, North Britain, Fire Brick Manufacturer, do hereby declare the nature of this
Invention to be as follows, that is to say :--
My said Invention relates to machinery used for making bricks with what is known
as semi-dry material; and it has for its objects, to prepare the material in an improved
manner and so as to be of very uniform condition, and to keep certain parts of the
moulding apparatus in an effective state.
"
In carrying out my Invention I grind the clay in a pan mill with edge runners and
I add the proper proportion of water to it whilst it is being ground the water being
by preference in the form of spray. The pan is made with a
riddle or perforated
bottom and the material as it is gradually forced through is conveyed by an elevator
or other suitable apparatus into a cylindrical riddle or sifting machine. This sifting
machine is made with a cylindrical shell of wire gauze or perforated sheet metal and
one or more brushes either stationary or rotatory is or are arranged inside of it for
the purpose of clearing the perforations or openings through the wire gauze or
perforated metal. When a non-rotating brush is used it is arranged to bear up
against the upper part of the interior of the cylinder, and when a rotating brush is
used it may be similarly placed or in a lower position as may be found best in
practice.
When the material is treated in the manner described it is brought into a suitable
semi-powdered and uniformly moist condition and when moulded and pressed forms
superior bricks. When however there is used a pressing stamp or die to mould a
name or other mark or device on the brick, the indented parts of the stamp or die are
apt to become choked with the material, and to remedy this inconvenience a brush,
which may be either stationary or rotatory is fitted to the pressing machinery in such
a way as to operate upon and clean the stamps or dies after each pressing action.
Dated this Ninth day of November 1887.
EDMUND HUNT,
Applicant's Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Brick Making Machinery.
1, ALEXANDER PATRICK, of 16 St. Enoch Square, Glasgow, in the County of
Lanark, North Britain, Fire Brick 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, that is to say:-
My said Invention relates to machinery used for making bricks with what is known
as semi-dry material; and it has for its objects, to prepare the material in an improved
manner and so as to be of very uniform condition, and to keep certain parts of the
moulding apparatus in an effective state.
In carrying out my Invention I grind the clay in a pan mill with edge runners and
I add the proper proportion of water to it whilst it is being ground the water being
by preference in the form of spray. The pan is made with a riddle" or perforated
bottom and the material as it is gradually forced through is conveyed by an elevator
or other suitable apparatus, into a cylindrical riddle or sifting machine. This sifting
machine is made with a cylindrical shell of wire gauze or perforated sheet metal and
one or more brushes either stationary or rotatory is or are arranged inside of it for
the purpose of clearing the perforations or openings through the wire gauze or
perforated metal. When a non-rotating brush is used it is arranged to bear up
against the upper part of the interior of the cylinder, and when a rotating brush is
used it may be similarly placed or in a lower position as may be found best in
practice.
When the material is treated in the manner described it is brought into a suitable
semi-powdered and uniformly moist condition and when moulded and pressed forms
superior bricks. When however there is used a pressing stamp or die to mould a
name or other mark or device on the brick, the indented parts of the stamp or die are
apt to become choked with the material, and to remedy this inconvenience a brush,
which may be either stationary or rotatory is fixed to the pressing machinery in such
a way as to operate upon and clean the stamps or dies after each pressing action.
The pan mill with edge runners and "riddle" bottom herein before referred to as to
be used in carrying out my Invention is of an ordinary well known construction. The
sifting machine referred to as to he used at a subsequent stage may be such as is
shown on an accompanying sheet of explanatory drawings.
Figures, 1, and 2, on the sheet of drawings are respectively longitudinal and
transverse sections of the sifting machine, which comprises a cylindrical shell, A, of
wire gauze or perforated sheet metal, carried by wheel-like end frames, B, on a shaft, C.
The shaft, C, is mounted in an inclined position in bearings, D, and is made to rotate
in any convenient manner. The material is led into the higher end of the cylindrical
sifter by a duct or hopper, E, up to which it is carried from the pan mill by an elevator
which may be of any suitable kind usually employed for such a purpose.
rotating brush, G, is shown as applied inside of the sifter, this brush being held by
arms, H, fitted loosely on the shaft, C, and which are provided with counterweights, J,
A non-

page_text: to keep the brush, G, bearing up against the part of the shell, A, which is uppermost.
The arms, H, are prevented from sliding towards the lower end of the shaft, C, by
rings or collars, K, fixed in their positions on the shaft after the arms have been
placed on it.
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
1-The improved combination of machinery for making bricks with semi-dry
material substantially as hereinbefore described.
<<
2-Arranging or combining a pan mill having edge runners and a riddle" bottom
with means for supplying water in spray and with a sifting machine so as to bring the
material for making bricks into a semi-powdered and uniformly moist condition
substantially as hereinbefore described.
a
3-The improved sifting machine for treating semi-dry brick making material
substantially as herein before described and as shown in the accompanying drawings.
4-In a machine for moulding semi-dry material to form bricks and comprising
pressing stamp or die to mould a name or other mark or device on the brick, providing
a brush for clearing out the indented parts of such stamp or die substantially as
hereinbefore described.
Dated this Seventh day of August 1888.
EDMUND HUNT,
Applicant's Agent.