A Perforated Pressed Brick.
Year: 1892

page_text: Date of Application, 11th Aug., 1892
Complete Specification Left, 17th Sept., 1892-Accepted, 3rd Dec., 1892
PROVISIONAL SPECIFICATION.
A Perforated Pressed Brick.
We WILLIAM HEXTER and WILLIAM HUMPHERSON (trading as Hexter
Humpherson & Co.) Potters and Brick Manufacturers, of the Potteries & Brick &
Tile Works, Newton Abbot in the County of Devon do hereby declare the nature
of this invention to be as follows:-
The object of this invention is to produce a brick both pressed and perforated.
At the present time bricks with holes pierced through the thickness of the brick
are commonly made and sold on account of their lightness and of the excellent key
which they afford for the mortar (these bricks are usually called perforated bricks):
and other bricks made quite solid and pressed by machinery are also commonly.
made and sold (usually called pressed bricks) the distinctive features of which are
the great density of the material after being so pressed and the fine close surface
produced by the pressing. But up to the present time to the best of our knowledge
and belief no one has succeeded in producing a brick which is pressed by machinery
and at the same time is a perforated brick. We have now succeeded in overcoming
the difficulties of the manufacture of such a brick and are able to produce a
pressed and perforated brick containing all the qualities of the two separate bricks
above referred to. Hence the novelty of our invention consists of the combina-
tion of the two qualities in the same brick namely those of a pressed and perforated
brick.
The method of producing this brick is as follows:
The brick is first made by an ordinary brick-making machine, or by hand, and
then placed in an ordinary brick-pressing machine, one of the plungers of which is
fitted with a number of pegs or spikes corresponding to the number of perforations
required in the brick; the pressure is then brought to bear upon the brick and the
pegs or spikes are forced into the clay and are then withdrawn by the backward
stroke of the plunger, thus piercing the brick with a number of holes, either quite
through, or only partially through, the thickness of the brick, as may be desired.
Dated this 11th day of November 1892.
WILLIAM HEXTER.
W. HUMPHERSON.
COMPLETE SPECIFICATION.
A Perforated Pressed Brick.
We, WILLIAM HEXTER and WILLIAM HUMPHERSON (trading as Hexter,
Humpherson & Co.) of the Potteries, Brick & Tile Works, Newton Abbot in the
County of Devon 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 :-
The object of this invention is to produce a brick both pressed and perforated,
thus combining two qualities at present quite distinct, namely that of a perforated
brick and that of a pressed brick.
The perforated brick as at present manufactured is usually a machine made brick
forced through a die which is so constructed as to perforate the brick with a number
of holes as the clay is passing through the die; the brick is then cut off
by wires to the required size thus forming a perforated wire-cut brick which
possesses the advantages of lightness and an excellent key for the mortar.
Price 8d.1

page_text: The pressed brick as at present manufactured is a brick made solid and placed in
a brick-pressing machine where by means of great pressure applied to the brick the
clay of which it is formed is compressed so as to give to the brick a greater density
than an unpressed brick possesses and at the same time to impart to it a truer form
and a smoother surface-thus the special features of a pressed brick are density of
material and truth of form and smoothness of surface.
Now in the perforated pressed brick which is the subject of this invention we
have succeeded in combining all the above qualities. The brick is first made by an
ordinary brick-making machine or by hand, and then placed in an ordinary brick-
pressing machine one of the plungers of which is fitted with a number of pegs or
spikes corresponding to the number of perforations required in the brick; the
pressure is then brought to bear upon the brick and the pegs or
spikes are forced
into the clay and are then withdrawn by the backward stroke of the plunger, thus
piercing the brick with a number of holes either quite through or only partially
through the thickness of the brick, as may be required.
Having now particularly described and ascertained the nature of our said inven
tion and in what manner the same is to be performed, we declare that what we
claim is ;-
The production of a brick combining the advantages or qualities of a perforated
brick with those of a pressed brick; that is to say, a brick which owing to the
number of holes pierced in it shall be light in weight and afford a good key for the
mortar, and which at the same time shall possess the density of material the truth
of form and smooth surface of a pressed brick.
Dated this 16th day of September 1892.
WILLIAM HEXTER.
WILLIAM HUMPHERSON.