IMPROVEMENTS IN MACHINERY FOR MAKING BRICKS
Year: 1868

page_text: LETTERS PATENT to Henry Large, of Notting Hill, in the County of
Middlesex, Gentleman, for the Invention of "IMPROVEMENTS IN
MACHINERY FOR MAKING BRICKS."
Sealed the 18th December 1868, and dated the 27th June 1868.
PROVISIONAL SPECIFICATION left by the said Henry Large at the
Office of the Commissioners of Patents, with his Petition, on the
27th June 1868.
I, HENRY LARGE, of Notting Hill, in the County of Middlesex,
Gentleman, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MACHINERY FOR MAKING BRICKS," to be as follows:-
My Invention relates to that class of brick-making machinery which
is employed to make hard bricks, and especially those which do not
require burning.
In carrying out my Invention the materials of which the bricks are to
be made are when properly mixed placed in a mould which is then
brought under a plunger worked by an excentric or other equivalent
mechanical device, whereby the materials will become consolidated and

page_text: compressed into the form of a brick. The mould with the compressed
brick therein is then carried forward to a second plunger, the rod of
which is connected by a rocking lever to the rod of the first plunger, so
that inmediately after a brick has been compressed the brick that has
just been passed forward will be by the descent of the second piston
forced out of the mould on to a receiving table attached to the end of a
weighted lever from which the finished brick is removed by hand, and
then the table is carried up by the weighted lever into its original
position ready to receive another brick,
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Large in the Great Seal Patent Office on
the 22nd December 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
LARGE, of Notting Hill, in the County of Middlesex, Gentleman, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-seventh day of June, in the year.
of our Lord One thousand eight hundred and sixty-eight, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Henry Large, Her special licence that I,
the said Henry Large, my executors, administrators, and assigns, or
such others as I, the said Henry Large, my executors, administrators,
and assigns, should at any time agree with, and no others, from time
to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and.
Isle of Man, an Invention for "IMPROVEMENTS IN MACHINERY FOR MAKING
BRICKS," upon the condition (amongst others) that I, the said Henry
Large, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should par-
ticularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be performed, and cause the same
to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters'
Patent

page_text: .
NOW KNOW YE, that I, the said Henry Large, do hereby declare
the nature of my said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by
the following statement, reference being had to the Drawing hereunto
annexed, and to the letters and figures marked thereon (that is
to say):
My Invention relates to that class of brick-making machinery which
is employed to make hard bricks, and especially those which do not
require burning.
In carrying out my Invention the materials of which the bricks are to
be made when properly mixed are placed in a mould which is then
brought under a plunger worked by a crank pin, excentric, or other equiva-
lent mechanical device, whereby the materials in the mould will become
consolidated and compressed into the form of a brick. The mould with
the compressed brick therein is then carried forward to a second plunger,
the rod of which is connected by a rocking lever to the rod of the first
plunger, so that immediately after a brick has been compressed the brick
that has just been passed forward will be by the descent of the second
piston forced out of the mould on to a receiving table attached to the
end of a weighted lever, from which the finished brick is removed by
hand, and then the table is carried up by the weighted lever into its
original position ready to receive another brick.
In the accompanying Drawings, Fig. 1, Sheet I., is a side elevation,
and Fig. 2, Sheet II., a front elevation of my improved machine, which
may also be employed for moulding or compressing peat or small coal
into bricks of artificial fuel.
For the purposes of my. Invention I employ a plunger a, to which a
vertical reciprocating motion up and down in suitable guides is com-
municated by an axis b driven in any convenient manner by steamn
horse, or manual power, and carrying a crank pin 6*, which is received
into a horizontal slot in the stem of the plunger. Beneath the plunger a
is a table c to support the moulds d, which moulds are shewn detached
in side view at Fig. 3, end view at Fig. 4, and plan view at Fig. 5,
Sheet I., and are rectangular frames open at the top and bottom and
perforated on both sides and both ends. The mould is placed on the
table, and into it there is first inserted an iron pallet or bed (shewn
detached in plan and side views at Figures 6, Sheet I.), also perforated,

page_text: and having a projection upon it to form an indent in the brick to hold
the mortar. The brick-making composition or material, or peat, turf, or
small coals, or other substance to be operated upon is then filled into
the mould in suitable quantity, and over it is inserted another pallet also
perforated, and having a projection upon it to form an indent on the
other side of the brick. Or plain iron pallets can be used, if required,
which would be the case for compressing peat, turf, or small coal, &c.
Then the iron plate e (shewn detached in plan and edge view at Figures 7,
Sheet I.), which gives the required thickness to the brick, is put on the
top pallet. The mould thus charged is pushed along the table c and
brought under the plunger a, and the plunger coming down on the top
of the iron plate e powerfully compresses the contents of the mould and
forms the material into a brick, or any other form desired. The plunger
immediately rises and the first mould is pushed on, and the plate e is
taken out whilst another similarly charged mould is brought into position
to receive the pressure at the next descent of the plunger. Each mould
after passing the moulding plunger is pushed outwards until it comes
over an opening in the table, as at c*, slightly larger than the inside of
the mould. While the mould is resting on the table c it receives a
second plunger at the lower end of the rod f, whereby the brick or
substance in the mould is forced out of it on to a palm g, which is held
up against it by a counterbalance weighted lever h acting against the
lower end of the vertical rod i. The second plunger has a recipro-
cating vertical motion given to it by means of a link, whereby it is
connected to a rocking lever j, the opposite end of which is similarly
connected to the rod of the first plunger a. The finished brick or
substance in the mould, together with the bottom and top pallets,
remain on the palm h, their weight being sufficient to keep the palm
down. As each brick or substance is removed the palm h again
ascends to receive the next brick, and the empty mould is conveyed
away to be refilled. On the same principle that one brick or substance
is compressed in the manner described, two or more can be made at one
stroke by using several plungers, and also can be driven out of the
moulds by a second set of plungers.
Having now described my Invention of "Improvements in Machinery
for. Making Bricks," and having explained the manner of carrying the
same into effect, I claim as the Invention secured to me by Letters
Patent as aforesaid, the combination of the first and second plungers

page_text: (linked to a rocking lever so as to act in unison) with the detached
moulds and weighted lever h and rod i with the palm g at its upper end,
as herein set forth.
In witness whereof, I, the said Henry Large, have hereunto set my
hand and seal, the Twenty-second day of December, in the year
of our Lord One thousand eight hundred and sixty-eight.
Witness,
J. W. MOFFATT,
66, Chancery Lane.
HENRY LARGE. (L.S.)