Improvements in and relating to Machine Dies or Moulds for Making Bricks and such like Articles.
Year: 1898

page_text: Date of Application, 23rd Aug., 1898-Accepted, 5th Nov., 1898
Improvements in and relating to Machine Dies or Moulds for
Making Bricks and such like Articles.
We, LAWRENCE COCKBURN, of 89, Paisley Road West, Engineer, and JOHN HAY,
of 318, Paisley Road, Pattern Maker and Engineer, both of the City of Glasgow,
North Britain, 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:-
It relates to dies or moulds wherein bricks and such like articles are formed
by machinery or steam power and has for its chief objects;
1st. To reduce the time and expense ordinarily involved in repairing the die
blocks of brick making machines (wherein the bricks or such like articles are
formed) or the faces of them when the latter are impaired.
2nd. To enable more than one kind, size or pattern of brick to be made with
one die block or mould, or set of them.
The invention will be better understood if reference is made to the accompany-
ing sheet of drawings in which;
Figure 1 is a perspective view of a die or mould block with removeable face
plate made in accordance with this invention.
Figure 2 is a perspective view similar to Fig. 1 of a die or mould block with
removeable die lining and face plate, the latter being removed.
Figure 3 is a perspective view of the face plate removed from the block shewn
in Fig. 2.
Figure 4 is a perspective view representing the underside of the mould or die
block shewn in Fig. 2 after the die lining and face plate have been removed.
Figure 5 is a perspective view representing the die lining (turned upside down)
which has been removed from the block shewn in Fig. 4.
Similar letters of reference and numerals throughout the illustrations indicate
corresponding parts.
The mould or die block A, Fig. 1 with projecting flanges B, C, top and bottom,
and central die cavity D, represents one modification of the invention and is
designed to form one of a series or set of mould or die blocks for a brick making
machine. Each such block is adapted for being fastened to a circular sole platé
by means of screwed bolts and nuts which are put through the parts 6163 and
through corresponding holes in the sole plate. Each block is segmental in form
and when the whole set of blocks are placed in their proper positions upon the
sole plate the upper flanges, C, form one continuous and level surface, broken
only by the central die cavity, D. which constitutes the mould or matrix for the
bricks.
A removeable face plate c¹ is fitted with precision within a recessed part formed
between the borders ³, . This face plate c¹ contains à central die space
corresponding exactly in size and form with the shape of the brick mould or die
cavity D also one or more marginal notches 5 for engaging with corresponding
projections upon the border also one or more countersunk holes e to receive
CD..
077
3

page_text: screws or bolts for fixing it to the top flanges, C, of the mould block, in which
corresponding holes are formed for this purpose. The raised border 2 is under-
cut in the form of a half dovetail to receive the bevilled end of the face plate c¹.
When the longer sides (right and left) of the die space (or any other part
or parts of c¹) which are specially liable to wear and tear when in use, become
rounded by the action of the clay or otherwise become impaired, this face plate cl
can be removed and a perfect one inserted in its place upon
block mould A, B, C, c8.
the
A further modification of the invention comprises in addition to the aforesaid
parts A, B, C, ¹ a removeable die lining D, di, (Fig. 5) fitted within a suitably
shaped, seat or cavity a¹, a² within the block A Fig. 4 and held in position there
upon the aforesaid sole plate; its top margins are covered by the face plate cl
Fig. 3 after it is fitted into the block as shewn in Fig. 2.
A second plate such as c¹ is similarly fitted, when required, upon the under-
side, B, of the mould block, as well as upon the upper side C.
Fitting strips d, Fig. 5, are formed upon the corners of the die lining for
adjusting the latter with precision within the cavity or die seat a¹.
Lugs or ears on the outsides of the lower margin of the die lining D, d
Fig. 5 are made to fit with precision into the recesses a² formed in the walls of
the die seat or cavity a¹ Fig. 4 to prevent its displacement by upward pressure.
When this die lining, , has been inserted within the cavity aa² and the face
plate fixed upon the surface, c8 Fig. 2 the structure A, B, C, el with die seat or
cavity constitutes (with or without a nether. plate similar to c¹) our improved
die block or mould for making bricks and such like articles by machinery accord-
ing to this modification.
The semi-circular recesses b³ formed in the projecting sides of the flanges B
combine to form bolt holes when these die or mould blocks A, B, C, D are adjusted
side by side upon the bed, or sole, plate of the brick making machine. The cut-
away spaces 63 upon the said flange B diminish the bearing surfaces which require
to be filed or dressed when fitting these blocks together, side by side, upon their
bed plate.
The lining is designed and adapted for its mould or inside die cavity D
being made any shape, size, or pattern required and the plate or plates c¹ must
each or either of them have a die aperture D which in shape, size, or pattern
corresponds therewith.
Moreover, the
Instead of only one notch being formed in the plate c¹ and only one pro-
jection cupon the block mould A, B, C, a notch may be formed at each end of
the plate and a projection at each end of the block mould.
notches may be formed in the parts c³ or c³ instead of in c¹, and one or more
of the projections ce upon the plate c¹ as an alternative and equivalent arrange-
ment.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
First In a die or mould block A. B, C, D, for making bricks or such like articles
by steam or other machinery, the combination therewith of a removeable
plate adapted for being fitted between strips and attached to or removed
from a depressed surface c8; also of a die seat or cavities a¹, a2 and a removeable
die or lining D) d, ³, d, adapted for being fitted with precision into the said
cavities a¹, a; also of the border strips.c³, ³, with projection c substantially as
herein described and drawn, or any mere modification thereof for the purposes
specified.
I
Second, In a. die or. mould block A, B, C, D, for making bricks or such like
articles by steam or other machinery the combination therewith of border
strips ², also a removeable plate c¹, 4, 5 adapted for being adjusted between the

page_text: strips 2, 3, and fixed to the recessed surface 8 substantially as herein described
and drawn or any mere modification thereof for the purposes specified.
Third, In a die or mould block A, B, C, the combination therewith of border
strips 2, 3, and a depressed surface 8 substantially as herdin described and
drawn or any mere modification thereof for the purposes specified.
Fourth, In a die or mould block A, B, C, the combination therewith of a
removeable plate el, c, c substantially as herein described and drawn or any mere
modification thereof for the purposes specified.
Fifth, In a die or mould block A, B, C, the combination therewith of a lining
seat or cavities a', a², substantially as herein described and drawn or any mere
modification thereof for the purposes specified.
Sixth, In a die or mould block A, B, C, the combination therewith of a remove-
able die lining D, d, d³, d substantially as herein described and drawn or any mere
modification thereof for the purposes specified.
Seventh, In a die or mould block A, B, C, the combination therewith of two
or more removeable plates such as c³, c, c, substantially as herein described and
drawn or any mere modification thereof for the purposes specified.
Dated this Twenty-second day of August 1898.
JOSEPH
LOCKWOOD,
203, Argyle Street, Glasgow, Agent for the Applicants.