Improvements in or relating to Brick Dies
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Brick Dies."
I, THOMAS WILKINSON, Joiner, of 66, Sheriff Street, West Hartlepool, in the
County of Durham, do hereby declare the nature of this invention to be as
follows:
-
My invention relates to brick dies or moulds, particularly dies or moulds of
that type constituted by an oblong frame of wood or like material lined with thin
overlapping metal plates fixed to the inner faces of the walls of the die, and
covering grooves or conduits cut or formed therein, said grooves or conduits
receiving, from a central hole or feed, a supply of lubricant which traverses them
and issues from between the lining plates to effect the lubrication of the clay as
it passes through the die.
In the customary construction, to clean the grooves or conduits it is necessary
to more or less disconnect the die, or take it apart, which involves a great
expenditure of time and labour, and the main object of my improvements is to
avoid this by so constructing or arranging the grooves or conduits that they can
be easily cleaned without recourse to the disconnection of the parts composing
the die.
Again, at present the lining plates are always secured in position by screws or
the like, but this plan does not give expeditious fitting and unfitting, and another
object of my invention is to improve the mode of fastening.
A further object of my invention is to provide, in a simple manner, for the
bricks issuing from the die with clean sharp corners, which, hitherto, has only
been attained by costly means.
In carrying my invention into effect, I make the longitudinal grooves or
conduits continuous from side to side of the die, and the vertical grooves or
conduits continuous from the top to the bottom thereof, that is to say, I extend
the grooves or conduits in the longitudinal components of the die frame from
end to end, and through the vertical components, which are connected to the
longitudinal components, and the grooves or conduits in the vertical components
I continue in the same fashion and through the longitudinal components. Thus,
it will be seen, the ends of the longitudinal grooves or conduits are open at the
sides of the die, and the ends of the vertical grooves or conduits at the top and
bottom thereof.
Normally, the ends of the grooves or conduits are controlled or stopped, and
for this purpose, I apply at or near each series of ends a plate, which may be
hinged, or arranged to slide, so that it may be turned or slid to open or close the
ends of the grooves or conduits.
Suitable means, such as flanged margins, or knobs, are furnished in connection
with the plates for operating them, while, for retaining them in the operative
or closed position, they may be arranged to be engaged by catches or other appro-
priate devices. Further, if desired, flexible packing, or packing devices, may
be arranged at the seats of the plates for preventing leakage.

page_text: The plates are fitted upon the parts of the frame adjoining the series of groove
or conduit ends controlled by the plates, the plates for the longitudinal grooves
or conduits being conveniently arranged upon the vertical members of the frame
and the plates for the vertical grooves or conduits upon the longitudinal
members.
It will now be evident that by this disposition, when the plates are moved into
the inoperative or open positions, free access is given for the insertion of a rod,
small brush or similar appliance into the various grooves or conduits for clean-
ing or clearing them without necessitating the separation or displacement of
the die.
For securing the lining plates, I flange or bend over an edge, and in the frame
cut recesses or grooves into which the flanged edges of the plates are inserted
firmly, and in this way I obviate the disadvantage of loose fastenings.
To attain my last object, I fix, at the corners of the die, metal fillets or hollows,
having their curvature tapering gradually from a maximum at the ingress end
of the die to a minimum eventually merging into the corners of the die at a point
near its egress end, whereby, as the brick passes through the die, the desired
clean formation accrues.
improvements in or relating to Brick Dies.
I. THOMAS WILKINSON, Joiner, of 66, Sheriff Street, West Hartlepool, in the
County of Durham, 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:-
My invention relates to brick dies or moulds particularly dies or moulds of
that type constituted by an oblong frame of wood or like material lined with thin
overlapping metal plates fixed to the inner faces of the walls of the die, and
covering grooves or conduits cut or formed therein, said grooves or conduits
receiving, from a central hole or feed, a supply of lubricant which traverses them
and issues from between the lining plates to effect the lubrication of the clay as
it passes through the die.
In the customary construction, to clean the grooves or conduits it is necessary
to more or less disconnect the die, or take it apart, which involves a great
expenditure of time and labour, and the main object of my improvements is to
avoid this by so constructing or arranging the grooves or conduits that they can
be easily cleaned without recourse to the disconnection of the parts composing
the die.
Again, at present the lining plates are always secured in position by screws or
the like, but this plan does not give expeditious fitting and unfitting, and another
object of my invention is to improve the mode of fastening.
A further object of my invention is to provide, in a simple manner, for the
bricks issuing from the die with clean sharp corners, which, hitherto, has only
been attained by costly means.
I will now fully describe the mode of carrying my invention into effect in
reference to the accompanying drawings, whereof Fig. 1 is a side elevation of a

page_text: die embodying the improvements, and Figs. 2, 3 and 4 are respectively an end
elevation, a central vertical section, and a plan of same.
In the drawings, A, A indicate the longitudinal components of the die frame
and A, A the vertical components thereof; while a-a, aa designate the
grooves or conduits for the lubricant which is fed at the hole B.
According to the first part of the invention, I make the longitudinal grooves or
conduits a-a continuous from side to side of the dic, and the vertical grooves or
conduits aa¹ continuous from the top to the bottom thereof, that is to say, I
extend the grooves or conduits a-a in the longitudinal components A, A of the
die frame from end to end, and through the vertical components A, A, which
are connected to the longitudinal components A, A as usual, and the grooves or
conduits aa' in the vertical components A', A' I continue in the same fashion
and through the longitudinal components A, A. Thus, it will be seen, the ends
of the longitudinal grooves or conduits a- are open at the sides or ends of the
die, and the ends of the vertical grooves or conduits a-a¹ at the top and bottom
thereof. Normally, as illustrated, the ends of the grooves or conduits a-a, a¹-a¹
are controlled or stopped, and for this purpose, I apply at or near each series of
ends a plate, which may be hinged, or arranged to slide, so that it may be turned
or slid to open or close the ends of the grooves or conduits.
The plates are marked C-C, C-C and are fitted upon the parts of the frame
adjoining the series of groove or conduit ends controlled by the plates, the
plates C-C for the longitudinal grooves or conduits a- being conveniently
arranged upon or alongside the vertical members A', A¹ of the frame and the
plates C-C for the vertical grooves or conduits aal upon the longitudinal
members A, A. As illustrated, each plate C is adapted to be slid against the
adjoining component A¹ in and out of a slot c cut in the component A, while every
plate C is hinged on a pin c¹ screwed into the contiguous component A.
Suitable means, such as flanged margins 2-2 or knobs, are furnished in con-
nection with the plates C-C, CC for operating them, while, for retaining them
in the operative or closed position, they may be arranged to be engaged or locked
by catches or other appropriate devices. Two such devices are illustrated, one
for locking the plates C-C, and the other for locking the plates C¹-C¹.
According to the former, at each end of both the components A, A a wood or
other strip D is secured over the grooves or conduits a-a, this strip being tapered
at the side adjacent to the component A' so as to constitute therewith a wedge
like space into which, when the plate C is inserted in the slot c, a wedge dis
driven to secure the plate. In the other arrangement, the plates C-C₁ are
fastened by screws D-D¹ passed through their free ends into the components A, A.
If desired, flexible packing such as leather strips E-E, or packing devices,
may be arranged at the seats of the plates C-C, CC for preventing leakage.
It will now be evident that by this disposition, when the plates C-C, C-01
are moved into the inoperative or open positions, as indicated by the dot and
dash line position of the plate C¹ at the right hand side of Fig. 4, free access is
given for the insertion of a rod, small brush or similar appliance into the various
grooves or conduits for cleaning or clearing them without necessitating the
separation or displacement of the die.
F-F indicate the lining plates, and according to the second part of my inven-
tion, for securing them I flange or bend over an edge f, and in the frame com-
ponents A, A, A¹, A¹ cut recesses or grooves a²-a into which the flanged
edges ff of the plates F-F are inserted firmly, as will be readily seen on
referring to Fig. 3, and in this way I obviate the disadvantage of loose fastenings.
To attain my last object, I fix, at the corners of the die, metal fillets or
hollows G-G, having their curvature tapering gradually from a maximum at
the ingress end of the die to a minimum eventually merging into the corners of
the die at a point near its egress end, whereby, as the brick passes through the
die, the desired clean formation accrues.
The fillets or hollows G-G are cut away or otherwise adapted fit the plates F-F

page_text: as shown clearly in Fig. 3, and at the ingress end of the die, they are preferably
provided with flanged ends g-g which are let into the surrounding framing so
as to be flush therewith. The fixing is effected by screws or the like.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is-
1. In brick dies or moulds of the type referred to, making the longitudinal
grooves or conduits continuous from side to side of the die and the vertical
grooves or conduits continuous from the top to the bottom thereof, whereby free
access is given for the insertion of a rod, small brush or similar appliance into
the various grooves or conduits for cleaning or clearing them, substantially as
described.
2. In brick dies or moulds of the type referred to, making the longitudinal
grooves or conduits continuous from side to side of the die and the vertical
grooves or conduits continuous from the top to the bottom thereof, whereby free
access is given for the insertion of a rod, small brush or similar appliance into the
various grooves or conduits for cleaning or clearing them, and applying at or near
each series of ends a plate, which may be hinged or arranged to slide so that it
may be turned or slid to open or close the ends of the grooves or conduits, sub-
stantially as described.
3. In brick dies or moulds of the type referred to, securing the lining plates
by flanging or bending over an edge of each and in the frame cutting recesses or
grooves into which the said edges are inserted firmly, substantially as described.
4. In a brick die or mould, fixing at the corners metal fillets or hollows having
their curvature tapering gradually from the maximum at the ingress end of the
die to a minimum eventually merging into the corners of the die at a point near
its egress end, whereby, as the brick passes through the die, the desired clean
formation accrues, substantially as described.
5. A brick die or mould constructed and arranged or adapted for use, sub-
stantially as hereinbefore described in reference to the accompanying drawings.
1000
153VU CIRRC
For the Applicant,
J. A. HARVEY,
Chartered Patent Agent, 3, St. Nicholas' Buildings, Newcastle-on-Tyne.