Year: 1897

page_text: I, HERBERT ALEXANDER, of Water Lane, Leeds, in the County of York, Engineer,
do hereby declare the nature of this invention to be as follows:-
The object of my invention, is to construct simple and efficient machinery for
the manufacture of bricks, such machinery being especially applicable for making
paneled bricks.
According to my invention, I employ a rocking beam, one end of which is con-
nected by means of a suitable connecting rod to the free end of a link. The
opposite end of the link is fulcrumed to the frame of the machine, and the pivot
of the connecting rod and link is connected by a rod to a crank which is rotated
by steam or other power. The opposite end of the rocking beam is connected to
a top plunger, which may have a panel in same if desired, and lifting rods connect
the bottom plunger to the top plunger in the ordinary way. The rotation of the
crank rocks the connecting rod and link a short distance across the centre line,
and thus gives an up and down motion to the rocking beam. This motion gives
the beam a short double movement at the end of its stroke thus imparting a double
pressure to the top plunger. On the return of the rocking beam to the
the top plunger is raised, thus lifting the bottom plunger by means of the lifting
rods in the ordinary way.
up position
When it is desired to make a panel in the underside of the brick, the lower
plunger is made with an internal plunger which is supported by a lever or levers
which is or are held upward by means of an adjustable spring attached to the frame-
work. The said lever is fulcrumed to the lower plunger in such a manner that
on the latter being depressed, the internal plunger rises in the lower plunger and
forces a panel or indentation in the lower side of the brick.
100K
I, HERBERT ALEXANDER, of Water Lane, Leeds, in the County of York, Engineer,
do here by 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 my invention, is to construct simple and efficient machinery for
the manufacture of bricks, such machinery being especially applicable for making

page_text: In order that my invention may be clearly understood, I will proceed to describe
same with reference to the accompanying drawing in which the letters refer to
the various parts.
According to my invention, I provide a frame A carrying a rocking beam B
at its upper end, and one end of the beam B is connected by means of a rod C
with the free end of a link D. The opposite end of the link D is fulcrumed to
the frame A, and the connecting pivot J of the rod C and link D is coupled by
means of a rod E with a crank F which is rotated by steam or other suitable
power. The opposite end of the rocking beam B is connected through a connecting
rod G with a cross head H carrying a plunger K, which latter may if desired be
formed with a panel in its face. L is the mould box and M is the lower plunger
which is actuated by the lifting rods N in the ordinary way. P is an internal
plunger situated in the plunger M, and R is a spring for forming an elastic seat
for the plunger P.
When the press is in use, the rotation of the crank F rocks the pivot J across
the centre line of the rod C and link D, thereby giving an up and down motion
to the rocking beam B. This action gives the beam a short double movement at
the end of its stroke, thus imparting a double pressure to the top plunger K
when it is in the down position, and owing to the elastic seat on which the
plunger P rests any excessive quantity of material contained in the brick being
pressed, depresses the panel instead of straining or breaking the press as it
might otherwise do in the event of the plungers being non-elastic.
On the rising of the plunger K, the plunger M is raised through the medium
of the lifting rods N, and as the internal plunger P slides in the plunger M it is
not lifted by the rods but is allowed to withdraw the panel from the brick, thus
allowing the said brick to be withdrawn from the surface of the plunger M without
difficulty.
The internal plunger P may be supported on levers which multiply the power
of the seating spring or springs, or the panel may be made in a piece with the
lower plunger if desired.
Having now partioularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:
1. In a machine for pressing bricks, the frame A, rocking beam B, rod C, link D,
pivot J, rod E and crank F, in combination with a suitable upper and lower
plunger, substantially as and for the purposes set forth.
2. In a machine for pressing bricks, the frame A, rocking beam B, rod C,
link D, pivot J, rod E, crank F, rod G, cross head H, and plunger K, in combination
with the lower plunger M, mould box L, and lifting rods N, substantially as and
for the purposes set forth.
3. In a machine for pressing bricks, the combination of the frame A, rocking
beam B, rod C, link D, pivot J, rod E, crank F, rod G, cross head H, plunger K,
mould box L, lower plunger M, rods N, internal plunger P and spring R,
substantially as and for the purposes set forth.
Dated this 19th down of Tahma
A D 1000