Improvements in Apparatus for Pressing Feeding Cakes and other similar substances.
Year: 1898

page_text: Date of Application, 4th Jan., 1898
Complete Specification Left, 3rd Oct., 1898-Accepted, 12th Nov.,
1898
Improvements in Apparatus for Pressing Feeding Cakes and other
similar substances.
I, HERBERT LAMBERT, of Montreal, Carlton Road, Bournemouth, in the County
of Hants, Engineer, do hereby declare the nature of this invention to be as
follows:
My invention refers to apparatus for pressing feeding cakes and other similar
substances, and it is particularly applicable for pressing what are known as
soft cakes," in which the material is treated in a cold or slightly heated state
and is submitted to a pressure of short duration.
"
According to my invention, I employ a kettle having the usual stirrer and
other appliances fitted thereto for the purpose of bringing the material to the
required state, and the lower part of the kettle is provided with two spouts
which are mounted at their lower ends on two mould boxes carried on the frame
of the apparatus. Between the two mould boxes a cylinder is securely mounted
on the frame, and a piston rod passing through both ends of the cylinder
carries a piston on its centre, in such a manner that the rod may be forced in
either direction by the admittance of hydraulic or other pressure on the required
side of the piston. The mould boxes which are made in a taper form broadening
out towards the base, are each provided with a sliding inner side and the backs
of these inner sides are attached to the ends of the piston rod in such a manner
that the movements of the piston cause one mould to open or broaden out as
the other is closed or compressed, and vice versa. The upper and lower ends
of the mould boxes are provided with cut off slides which are connected with
suitable mechanical means whereby they alternately open and close but are never
both open at the same time, and a suitable interval is allowed after the closing
of the upper slide for the pressure to be exerted, after which the lower slide
is opened.
The sliding plates of the moulds may be actuated by mechanical or other suit-
able means instead of by hydraulic pressure, but the latter is generally the
best and most convenient power to employ. The moulds may be provided with
movable sections operated at the time of discharge in order to prevent the cakes
adhering to the sides of the moulds, and the mould boxes may be provided with
partition plates to enable two or more cakes to be formed in each box at each
pressure. The slides may be worked by hydraulic pistons, and the valves to
the latter and the valves to the main piston, may be operated so as to secure
a continuous cycle of movements.
'
20 T
AD
1000
BREWER & SON,
London and Leeds, Agents for the Applicant.

page_text: Improvements in Apparatus for Pressing Feeding Cakes and other
similar substances.
I, HERBERT LAMBERT, late of Montreal, Carlton Road, Bournemouth, but now
of Wren's Nest, Richmond Park, Bournemouth, in the County of Hants,
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 apparatus for pressing feeding cakes and other similar
substances, and it is particularly applicable for pressing what are known as
"soft cakes," in which the material is treated in a cold or slightly heated state
and is submitted to a pressure of short duration.
In order that my invention may be clearly understood, I will proceed to de-
scribe the same with reference to the accompanying drawings in which similar
letters refer to like parts in both figures.
Figure 1 is a sectional side elevation and Figure 2 is a cross section, of a
machine constructed according to my invention.
A is the kettle having the usual stirrer and other appliances fitted thereto
for the purpose of bringing the material to the required state, and the lower
part of the kettle is provided with two spouts B and C, which are mounted on
two mould boxes D and E, carried on the frame G of the apparatus. Between
the two mould boxes D and E, a cylinder F' is securely mounted on the frame G,
and a piston rod H passing through both ends of the cylinder F, carries a
piston Jon its centre, in such a manner that the rod H may be forced in either
direction by the admission of hydraulic or other pressure on the required side
of the piston J. The mould boxes D) and E, which are made in a taper form
broadened out towards the base, are each provided with sliding inner sides K
and L, and the backs of the sides K and L are attached to the ends of the piston
rod H, in such a manner that the movements of the piston J, cause one mould
to broaden or open out as the other mould is closed or compressed, and vice versa.
The upper and lower ends of the mould boxes are provided with cut off slides M, N
and P, R, which are actuated in such a manner, that they alternately open
and close but are never both open at the same time; and a suitable interval
is allowed after the closing of the upper slide for the pressure to be exerted,
after which the lower slide is opened. S and T are two shafts which are driven
at equal speeds by suitable gearing connected with the main shaft of the machine,
and the valves controlling the movements of the piston J are also operated
from the same source thus ensuring the correct relative movements of the various
parts. M¹, N¹, P¹ and R¹ are springs which connect the slides M, N, P and R
with the frame G, thus tending to keep the said slides closed, and the latter
are operated at the required times from the shafts S and T by means of
cams M², N³, P2, and R², bell crank levers M³, N³, P3, and R³, and links M, N, P,
and R.
The material is mixed to the required state in the kettle A, and falls into
the spouts B and C, and the slide N having been opened by means of the cam N2,
bell-crank lever N³, and link N', the mould box E is filled and the supply of
material is then cut off by the cam N2 releasing the slide N and allowing it to
close. Pressure is now admitted to the piston J, and the rod H moves the
mould side L against the material and presses the cake, at the same time draw-
ing back the side K of the mould box D, whilst the continued rotation of the
shaft S causes the cam M³ to open the slide M, through the medium of its bell
crank lever M³ and link M*, thus admitting the material to be pressed to the
4

page_text: mould box D. On the return of the piston J owing to the admission of the
pressure to its opposite face, the material in the mould D, which has already
been cut off by the slide M, receives its pressure; whilst the pressed cake in
the mould E is released and allowed to fall by the withdrawal of the mould
side Land by the opening of the slide R, the latter having received its move-
ment from the cam R³, bell crank lever R³ and link R. On the pressure being
again applied in the mould E, the cake in the mould D is released in a similar
manner, viz. by the withdrawal of the mould side K, and by the opening of
the slide P through the medium of the cam P³, bell crank lever P3 and the
link P.
The sliding plates M, N, P and R could be equally well actuated by hydraulic
or other pistons connected to the same, the valves to the cylinders in this case
being operated so as to time in with the movements of the hydraulic press. The
moulds may be provided with movable sections operated at the time of discharge
in order to prevent the cakes adhering to the sides of the moulds, and the
mould boxes may be provided with partition plates to enable two or more cakes
to be formed in each box at each pressure.
Although I have described the moulds as being actuated by hydraulic means,
it is obvious that mechanical means could be employed if desired. I would
also have it understood, that instead of having the inner sides of the moulds
movable and pressing them against the outer fixed sides, the order could be
reversed, and the outer sides could be movable and be pressed against fixed interior
sides of the moulds; and instead of the cut off slides being actuated from the
shafts they could be actuated from the moving portions of the mould, through
the medium of suitable mechanical connections.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
-
1. The moulding and pressing of feeding cakes in taper moulds arranged
vertically immediately below the supply of the material, the supply and dis-
charge of the cakes being effected by the natural fall of the material and regu-
lated by suitable slides, substantially as and for the purposes set forth.
2. The combination of the kettle A, spouts B and C, and mould boxes D and E,
the sides of the said mould boxes being so arranged that feeding cakes may
be pressed alternately in one and the other, substantially as set forth.
3. The combination of the kettle A, spouts B and C, mould boxes D and E,
sliding inner sides K and L, actuated by suitable means, and cut off slides M, N, P
and R, substantially as and for the purposes set forth.
4. The combination of the kettle A, spouts B and C, mould boxes D and E,
cylinder F, piston rod H, piston J, inner sides K and L, and suitable cut off
slides at the upper and lower ends of the moulds, substantially as and for the
purposes set forth.
5. The combination of the kettle A, spouts B and C, mould boxes D and E,
cylinder F, piston rod H, piston J, inner sides K and L, cut off slides M, N, P
and R, shafts S and T, and connecting portions between the latter and the
slides M, N, P and R, substantially as and for the purposes set forth.
BREWER & SON,
London ard Leeds, Agents for the Applicant.
LIHAN
C
то
Lun DIG
UCLUMCI
BREWER & SON,
London ard Leeds, Agents for the Applicant.