Improvements in Machinery for Making and Pressing Bricks and the like.
Year: 1893

page_text: Date of Application, 27th May, 1893
Complete Specification Left, 27th Feb., 1894-Accepted, 31st Mar., 1894
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Making and Pressing Bricks and
the like.
We, WILLIAM WILKINSON and HERBERT ALEXANDER, both of Neville
Works, Elland Road, Leeds, in the County of York, Eugiueers, do hereby declare
the nature of this invention to be as follows:-
Our invention has reference to the press mechanism employed in brick machines
and the like; and by the employment of apparatus constructed according to our
invention, the bricks produced are more regular in form, and more perfect in
condition than bricks hitherto produced.
According to our invention we connect the upper plunger of the press to a crank
situated on the pressure shaft in the ordinary way, and on each side of the said
crank we mount an auxiliary crank, cam, or eccentric, which latter are situated in
the opposite direction to the main crank. To each of the auxiliary cranks, cams,
or eccentrics we attach connecting rods, which pass down on each side of the press,
and are connected together below same by a beam of considerable strength.
Within the press we place a plunger, the lower part of which plunger protrudes
through the bottom of the said press, and rests on the centre of the beam which is
suspended by the two connecting rods to the auxiliary cranks, canis, or eccentrics.
On the brick having been moulded in the other part of the machine and then
passed into the mould of the press, the pressure shaft in revolving lowers the upver
plunger by means of its crank, and raises the lower plunger by reason of the
auxiliary cranks, cams, or eccentrics raising the beam below such lower plunger by
means of their connecting rods. In this manner the brick is pressed from below
and also from above, and the pressure is of a firm and unpliable or unyielding
nature, owing to the fact of the two pressures being obtained from the same shaft,
which allows the crank and cams to act as a single wedge, forcing the plungers
together. On the plungers coming apart, the lower plunger is raised by distance
rods connected to the upper plunger in the ordinary way, thus lifting the brick
level with the upper surface of the table, whence it is removed by any suitable
mechanism.
In some cases it may be advantageous to place a spring or springs on the ends
of the connecting rods or below the plunger, thus obtaining an elastic pressure.
Dated this 27th day of May 1893.
BREWER & SON,
London and Leeds, Agents for Applicants.
COMPLETE SPECIFICATION.
Improvements in Machinery for Making and Pressing Bricks and
the like.
We, WILLIAM WILKINSON and HERBERT ALEXANDER, both of Neville
Works, Elland Road, Leeds, in the County of York, Engineers, 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 :-
Our invention has reference to the press mechanism employed in brick machines'

page_text: and the like; and by the employment of apparatus constructed according to our
invention the bricks produced are more regular in form and more perfect in condition
than heretofore.
In order that our invention may be clearly understood, we will proceed to
describe same with reference to the accompanying drawing, in which similar letters
refer to like parts in both figures.
Fig. 1 is a side elevation, and Fig. 2 an end elevation, showing part of a brick
* machine with our improvements applied thereto.
According to our invention we connect the upper plunger A of the press to
a crank B situated on the pressure shaft C in the ordinary way, and on the said
shaft C, at each side of the crank B, outside the framework D, we mount an
auxiliary crank, cam, or eccentric E and F, which latter are situated in the opposite
direction to the main crank B.
To each of the auxiliary cranks, cams, or eccentrics E and F we attach
connecting rods G and H, which pass down on each side of the framework D,
such rods G and H being connected together at their lower ends by a beam J of
considerable strength.
Between the framework D is situated the ordinary table K containing the
mould K', and below the table K on the beam J we mount a plunger L, the upper
end of which passes within the mould K' and forms the base thereof.
On the brick having been moulded in the other part of the machine and then
passed into the mould K' of the press, the pressure shaft C in revolving lowers the
upper plunger A by means of the crank B, and at the same time raises the lower
plunger L by means of the auxiliary cranks, cams, or eccentrics E and F, connecting
rods G and H, and beam J.
In this manner the brick is pressed from below and also from above, and the
pressure is of a firm and unpliable or unyielding nature, owing to the fact of
the two pressures being obtained from the same shaft C, which allows the crank B
and eccentrics E and F to act as a single wedge, forcing the plungers A and L
together. On the plungers A and L coming apart the lower plunger L is raised
by distance rods M, connected to the upper plunger A in the ordinary way, thus
lifting the brick level with the upper surface of the table K, from whence it is
removed by any suitable mechanism. The height of the lower plunger L may be
readily adjusted by means of the packing pieces N, placed within the rods G
and H underneath the beam J, or any other suitable adjustment may be employed ;
and the required amount of "rest may be given to the said plunger L by
allowing the beam J to come onto the stop piece P, whilst the connecting rods
and H continue to move by reason of the slots R therein.
"
In some cases it may be advantageous to place a spring or springs on the ends
of the connecting rods G and H, or below the plunger L, thus obtaining an elastic
pressure.
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 :
1. In machinery for making and pressing bricks and the like the two plungers,
connected by means of rods to cranks, cams, or eccentrics on a single shaft,
substantially as and for the purposes set forth.
2. In machinery for making and pressing bricks and the like the combination
of the plunger A connected to the crank B, pressure shaft C, framework D,
eccentrics E and F, connecting rods G and H, beam J, and plunger L, substantially
as and for the purpose set forth.
3. In machinery for making and pressing bricks and the like, the combination
of the plunger A, crank B, shaft C, framework D, cranks, cams or eccentrics E
and F, connecting rods G and H, beam J, table K, mould K', plunger L, distance

page_text: rods M, packing pieces N, stop piece P and slots R, substantially as and for the
purposes set forth, together with any mere modification or modifications thereof.
Dated this 27th day of February 1894.
BREWER & SON,
London and Leeds, Agents for Applicants.