AN IMPROVED APPARATUS FOR CONSTRUCTING .CONCRETE. BRICKS
Year: 1877

page_text: LETTERS PATENT to Spencer Hayward, of No. 2, Old Prospect Place, Peckham
Rye, in the County of Surrey, Builder, for the Invention of "AN IMPROVED
APPARATUS FOR CONSTRUCTING .CONCRETE. BRICKS."
Sealed the 20th October 1877, and dated the 27th June 1877.
PROVISIONAL SPECIFICATION left by the said Spencer. Hayward at the
Office of the Commissioners of Patents on the 27th June 1877.
SPENCER HAYWARD, of No. 2, Old Prospect Place, Peckham, Rye, in the County
of Surrey, Builder. "AN IMPROVED APPARATUS FOR CONSTRUCTING CONCRETE
BRICKS."
I construct a mould, or rather series of moulds, of wood or metal. For convenience
when metal is employed, I prefer to have a mould for the construction of twenty-
five bricks in one block. This mould consists of an oblong box, the sides of which
have grooves opposite one another at proper intervals. Into these grooves I fit
pieces which form the side walls of the brick moulds, one side of each piece being
flat, and the other side formed so as to make the frog of the brick, or having
a piece fitted on for that purpose.
The front of the box can be detached, and is fixed by means of thumb-screws
underneath or any other convenient method. I brush the interior of the moulds
with soft soap or other suitable substance to render the surface non-adhesive, and
over this I sprinkle sand. Into this mould I pour the concrete in a liquid state,
smoothing over the upper surface to make it even. When it has sufficiently set I
detach the front, and can then remove the pieces forming the side-walls one by one,
and take out the bricks and pile them suitably for drying.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Spencer Hayward in the Great Seal Patent Office on the 26th
December 1877.
SPENCER HAYWARD, of No. 2, Old Prospect Place, Peckham Rye, in the County
of Surrey, Builder. "AN IMPROVED APPARATUS FOR CONSTRUCTING CONCRETE
BRICKS."
I construct a mould, or rather series of moulds, of wood or metal. For convenience,
when metal is employed, I prefer to have a mould for the construction of 25
bricks in one block. This mould consists of an oblong box, the sides of which
have grooves opposite one another at proper intervals. Into these grooves I fit
pieces which form the side walls of the brick moulds, one side of each piece being
flat and the other side formed so as to make the frog of the brick, or having a piece
fitted on for that purpose.
The front of the box can be detached, and is fixed by means of "clams" connected
by a rod with a handle in the centre, so that the claws are relieved simultaneously,
or by means of thumb-screws underneath, or any other convenient method. I brush
the interior of the moulds with soft soap, or other suitable substance, to render the
surface non-adhesive, and over this I sprinkle fine sand. Into this mould I pour
the concrete in a liquid state, smoothing over the upper surface to make it even.
When it has sufficiently set, I detach the front, and can then remove the pieces
forming the side walls one by one, and take out the bricks and pile them suitably
for drying.
In the Drawing accompanying this Specification I have shewn a mould for the
construction of 25 bricks.
Figure I. is a plan of the mould, showing the pieces forming the side walls or
divisions in their places; A is the detachable front; B, B, B, are the clams by which
it is detached; C is the rod connecting the clams; and D is the handle for actuating
them; E is the back of the mould; and F, F, are the pieces forming the side walls
or divisions.
Figure II. is a plan of the bottom of the mould; G is the bottom; B, B, B, are
the clams as before; C, the connecting rod; and D, the handle; H, H, H, are notches
in which the clams are caught, and the clams turn on pivots K; K, K; fixed to the
bottom of the mould.
Figure III. is an external elevation of the front of the mould; Figure IV. is an
elevation of the mould with the front detached, and the pieces forming the side
walls or divisions taken out; I, I, I, are grooves in which these pieces fit.
Figure V. is a sectional end elevation of the mould, shewing one of the pieces
forming the side wall and the clams.
Figure VI. is a sectional end elevation as in Figure V., but in full size, and shewing
the opposite side of the pieces forming the side walls or divisions with the frog
attached.
Throughout the Drawing the same letters refer to the same parts.
Having now described the nature of my Invention and in what manner the same
is to be performed, I wish it to be understood that I do not claim as new the several
undivided parts above described, but what I do claim is the combination of the
several parts, together forming the improved apparatus for the construction
of concrete bricks, substantially in the manner herein-before described.
In witness whereof, I, the said Spencer Hayward, have hereunto set my hand
and seal, this Twenty-sixth day of December, One thousand eight hun-
dred and seventy-seven.