IMPROVEMENTS IN THE CONSTRUCTION OF BRICK MOULDS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I JOHN THOMAS BOWER of Sittingbourne, in the County of Kent, Engineer do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN THE
CONSTRUCTION OF BRICK MOULDS" to bo as follows:-
This Invention relates to improvements in the construction of moulds used in
the manufacture of bricks the improvements having for object to increase the
strength of the moulds, the weight at the same time being diminished whereby
they are less liable to get out of shape in use and do not wear out so quickly as the
moulds now in use. .
Hitherto such moulds have generally been constructed of head and side plates
of sheet metal, the side plates having their top and bottom edges turned over so as
to form flanges or rims to contain the outside wood casing the edges of the head
plates were formed with tenons or projections which passed through holes or slots
in the side plates and wood casing, the ends being then rivetted over a small plate
on the outside and in some cases the head plates have been formed with flanges
rivetted to the side plates-neither of those modes of construction have given good
results as moulds so constructed give way at the corners or bulge, whereby the
bricks produced have been unshapely.
According to my Invention I form the heads of the mould of sheet metal without
either projections or flanges and I construct the side plates from cast metal, with an
outside flange at top and bottom as hitherto but stronger, but I provide the said
side plates with a vertical flange at each end on the inner sides thereof; the head
plates bear against the said vertical flanges and are rivetted thereto. The wood
casing is attached to the side plates by a suitable number of screws or rivets
thereby rendering the wood casing independent of the fastenings connecting the
plates together and allowing of their being replaced when worn or otherwise
without having to take the mould to pieces.
Brick moulds constructed according to my Invention are not liable to get out of
shape and will bear longer and harder wear than those hitherto in use,
It will be obvious that the wood casing may be dispensed with.

page_text: I JOHN THOMAS BOWER, of Sittingbourne, in the County of Kent, Engineer, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN THE
CONSTRUCTION OF BRICK MOULDS" 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 improvements in the construction of moulds used in the
manufacture of bricks the improvements having for object to increase the strength
of the moulds the weight at the same time being diminished, whereby they are
less liable to get out of shape in use and do not wear out so quickly as the moulds
now in use.
Hitberto such moulds have generally been constructed of head and side plates
of sheet metal, the side plates having their top and bottom edges turned over so as
to form flanges or rims to contain the outside wood casing; the edges of the head
plates were formed with tenons or projections which passed through holes or slots
in the side plates and wood casing the ends being then rivetted over a small plute
on the outside and in some cases the head plates have been formed with flanges
rivetted to the side plates—neither of these modes of construction have given good
results as moulds so constructed give way at the corners or bulgo, whereby the
-bricks-produced-have been unshapely.
According to my Invention I form the heads of the mould of sheet metal
without either projections or flanges and I construct the side plates from cast
metal, with an outside flange at top and bottom as hitherto but stronger, but I
provide the said sido plates with a vertical Hange at each end on the inner sides
thereof: the head plates bear against the said vertical flanges and are rivetted
thereto. The wood casing is attached to the side plates by a suitable number of
screws or rivets.
In order to enable my Invention to be fully understood I will proceed to
describe the same by reference to the accompanying Drawing in which Figure 1,
is a plan, Figure 2, a side elevation and Figure 3, an end elevation of a brick
mould constructed according to my Invention; Figure 4, is a detached view of
one of the head plates of the mould; Figure 5, is an edge view of one of the side
plates of the mould; Figures 6, and 7, are elevations of the inner and outer sides
respectively of one of the side plates and Figure 8, is an end view of the same.
Similar letters in all the Figures represent similar parts.
a, a, represent the heads of the mould formed of sheet metal-and, as clearly
shewn in Figure 4, without projections or flanges; b, b, are the side plates
constructed from cast metal; c, c, are the outside flanges at top and bottom of the
same; d, d, are the vertical flanges at each end of the side plates b, on the inner
sides thereof; the head plates a, bear against the flanges d, as seen in Figure 1,
and are rivetted thereto; e, is the wood casing attached to the sido plates b, by the
screws or rivets f, through the holes f¹, in the side plates thereby rendering the
wood casing e, independent of the fastenings connecting the plates a, and b, together
and allowing of their being replaced when worn or otherwise without having to
take the mould to pieces.
Brick moulds constructed according to my Invention are not liable to get out of
shape and will bear longer and harder wear than those hitherto in use.
It will be obvious that the wood casing e, may be dispensed with.
It will be obvious that by using my improved head plates, that is to say, head
plates without either flanges or projections, the parts of the mould may be connected

page_text: together by angle iron in which case the flanges d, would not be required the angle
iron being rivetted to both the head and side plates but I do not advise such
arrangement as it does not give good results.
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
Firstly. The improved brick mould hereinbefore described and represented in
the accompanying Drawing..
Secondly. A brick mould having head plates without either flanges or projections
as herein before described. .
Thirdly. Providing the sido plates of brick moulds with a vertical flange at
each end as and for the purpose hereinbefore described and represented in the
accompanying Drawing.