Improvements in or connected with Machinery for Moulding and Pressing Bricks.
Year: 1896

page_text: Date of Application, 14th Jan., 1896
Complete Specification Left, 14th Oct., 1896-Accepted, 19th Dec., 1896
PROVISIONAL SPECIFICATION.
Improvements in or connected with Machinery for Moulding and
Pressing Bricks.
I, ARTHUR PULLAN, of Temple Terrace, Beeston Hill, Leeds, in the County
of York, Engineer, do hereby declare the nature of this invention to be as
follows:
My invention refers to machinery for moulding and pressing bricks, and my
object is to construct such machinery in a more compact and simple manner,
thereby reducing the cost of the machine and ensuring the best results in the
manufacture of the bricks.
According to my invention, I employ a driving shaft, which is connected to the
main shaft of the machine by any suitable gearing. A rotary moulding table of
circular form, is provided at the base of the machine, and the said table is driven,
either continuously or intermittently; if continuously tooth gearing may be
employed, and if intermittently, by a ratchet motion or other suitable gear. The
pug mill is situated vertically over the rotary moulding table and the knives of the
said mill may be corrugated or serrated for the purpose of holding the material
towards the centre of the mill during the time the clay is fed to the moulds in the
table. A press for pressing the bricks after they are moulded in the table, is
constructed at the end of the machine, and the said press is actuated by a crank or
eccentric mounted on a prolongation of the main shaft, thus dispensing with the
intermediate gearing hitherto required for actuating the press. The mechanism
for lifting the pressed brick from the press is connected with a lever or levers,
whereby the ejecting mechanism situated beneath the table, raises the moulded
brick from the mould situated nearest to the press, and the ordinary feed
mechanism feeds the moulded brick to the press, at the same time removing the
pressed brick.
By constructing the shaft of the pug mill in two parts, and joining same by a
detachable coupling, the portion of the shaft carrying the knives may be readily
removed, thus enabling the said shaft and knives to be withdrawn for repairing or
for other purposes, without disturbing the gearing.
Dated this 14th day of January 1806
BREWER & SON,
London and Leeds, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or connected with Machinery for Moulding and
Pressing Bricks.
I, ARTHUR PULLAN, of 25 Temple Terrace, Beeston Hill, Leeds, in the
County of York, Engineer, 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 :-
My invention refers to machinery for moulding and pressing bricks, and my

page_text: object is to construct such machinery in a more compact and simple manner,
thereby reducing the cost of the machines and ensuring the best results in the
manufacture of the bricks.
In order that my invention may be clearly understood, I will proceed to describe
same with reference to the accompanying drawings, in which similar letters refer to
like parts in all the figures.
Fig. 1 is a side elevation. Fig. 2 is a plan, and Fig. 3 is a front elevation of a
machine constructed according to my invention.
A is the driving shaft of the machine, which is connected through toothed
gearing B with the main shaft C of the machine. D is a rotary moulding table,
having moulds E therein for moulding the bricks to be pressed, and the said table
is driven intermittently through the medium of a double toothed wheel F which
gears into recesses situated in the periphery of the table D. The double toothed
wheel F, consisting of a disc having two projections, one on each side of same is
mounted on a shaft G which carries a bevel wheel G at its upper end, and the
latter gears with a bevel wheel C¹ which is mounted on the main shaft C of the
machine. His a pug-mill which is situated vertically over the table D, and
motion is imparted to the said pug-mill H from the shaft C through the medium of
bevel gearing J. The pug-mill H is provided with a door H', and the shaft H2 of
the said pug-mill carries corrugated knives or blades, the corrugations being
formed across the knives and concentric with the shaft, and the said shaft H' is
constructed in two parts which are joined together by a coupling H. The shaft C
is prolonged and on the said prolongation an eccentric K is provided, which
actuates a press L for pressing the bricks. M is a feeding plate which is actuated
by a lever M', and the upper end of the lever M takes into a cam M' which is
mounted on the main shaft C. N is a lever for extracting the moulded bricks
from the table D, and the said lever N is actuated by a cam surface R situated on
the underside of the double toothed wheel F.
The action of the machine is as follows:-
On the driving shaft A being rotated, the toothed gearing B imparts the motion
to the main shaft C; and the rotation of the said main shaft C actuates the
pug-mill H through its gearing J, thus feeding the clay to the table D where it is
received in the moulds E. The said table D is rotated step by step from the main
shaft C through the bevel gearing G', shaft G and double toothed wheel F, and
with each pause between the said movements of the table D, the clay enters the
mould which happens to be situated below the pug-mill H, whilst at the same time
the lever N is actuated by the cam surface R situated beneath the toothed wheel F,
thus extracting a moulded brick in front of the feed mechanism M of the press L.
The feed mechanism M is now actuated from the main shaft C through the
medium of the cam M2 and lever M', thus causing the feeding plate M to slide the
moulded brick to the press L, which latter being actuated by its eccentric K
situated on the prolongation of the main shaft C, descends and gives the required
pressure to the brick. On the next movement of the parts above described, the
pressed brick is raised in the ordinary way, and the sliding of the next moulded
brick into position, pushes the pressed brick from the press and it may then be
removed by a travelling band or by other suitable means.
It will thus be seen that all the parts of the apparatus above described are
driven directly from the main shaft C, thus dispensing with a number of brackets
and a large amount of gearing which has hitherto been required for actuating the
said parts, whilst at the same time the weight may be considerably reduced without
lessening the strength of the machine. The corrugating of the knives of the
pug-mill H tends to keep the clay towards the centre of the said mill, and the
construction of the shaft H' in two detachable pieces, enables the lower part of
the said shaft carrying the corrugated knives, to be readily removed for repairs or
for other purposes when required, without disturbing the wheels or other parts
of the machine.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the samé is to be performed, I declare that what I
claim is :-
1. In machinery for moulding and pressing bricks of the type having a
horizontal rotary table, the prolongation of the main shaft C whereby the press is
actuated by a crank or eccentric situated directly on the said shaft, substantially as
and for the purposes set forth.
2. In machinery for moulding and pressing bricks, the corrugating of the knives
of the pug-mill, and the formation of the shaft of the said mill in two detachable
parts, substantially as and for the purposes set forth.
3. The general arrangement of the parts forming my invention, substantially as
described and with particular reference to the accompanying drawings, together
with any mere modification or modifications thereof.
BREWER & SON,
London and Leeds, Agents for the Applicant.
BREWER & SON,
London and Leeds, Agents for the Applicant.