Improvements in Brick Presses or Machines for Moulding Plastic Materials into Blocks.
Year: 1898

page_text: Date of Application, 16th Feb., 1898-Accepted, 26th Mar., 1898
CUMI DELE
Improvements in Brick Presses or Machines for Moulding
Plastic Materials into Blocks.
I, RICHARD KAUDELKA, Engineer, of Recklinghausen, in the German Empire, 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:-
This invention relates to machines for moulding plastic or pasty materials, such as
clay, peat, new cheese, float-sand, and fossil meal, into blocks or bricks of the desired
shape.
In the accompanying drawings,
Fig. 1 is a longitudinal vertical section of a machine embodying my invention;
Fig. 2 is a tranverse section of the same.
The casing a of an ordinary mixing machine, for instance a pug mill, has a lateral
opening, through which pasty material is fed to the press over an inclined plane u.
The body or box c of the press contains a piston f connected by a pair of links g with
a hand-lever (not shown in the drawing) and adapted to move up and down in
the box c.
The body c also contains a slide e, adapted to move up and down between the feed
canal and the press-piston, by means of a hand lever d and a link.
k
Underneath the box c there is a platform provided with ledges m and i, and
carrying two removable moulds h, which can only be introduced from one side, being
guided right and left by the ledges m, and abutting on the opposite side against the
ledge i, so that the moulds occupy the correct position, immediately after they have
been introduced into the machine. The moulds h are divided into panels of any
desired number and size. The underside of the platform is provided with two rails l,
which run over two pairs of rollers n serving to guide the said rails and to facilitate
the to-and-fro motion of the platform. This is produced by a hand lever o, a pair of
side levers p' and a pair of links p₁, the side levers being pivoted at their upper ends
to a pair of lugs q formed on the platform k, while the hand lever o is fixed to one of
the side levers p¹. The to-and-fro motion of the platform is limited on one side by
the casing a of the mixing machine, and on the other by a flat iron bar y fixed to the
stand or underframe of the machine. The axles of the guiding and supporting
rollers n, n have their bearings in an adjustable upper frame r which is supported by
springs & fixed to the stationary frame forming part of the machine stand.
The helical springs & exert upon the movable frame r an upward pressure, which is
transmitted by the rollers n and guide rails to the platform k, which in its turn
presses the moulds h against the body c of the press.
The box c is provided with ribs t, corresponding in number and position to the
partitions or panels of the moulds, said ribs having sharp upper edges adapted to
divide the plastic mass into sections or plates, which are subsequently cut off by
the lower edges of the box c and partitions t, when the filled moulds are being
drawn out.
At the beginning of the operation the vertical slide e and press piston foccupy their
highest position, then the plastic mass passes from the mixing machine into the

page_text: press c and fills the space underneath the piston f. Thereupon the slide e is lowered,
and the piston pressed down, so as to fill the mould h situated under the box c.
Subsequently the platform k is shifted by means of the lever o, so as to draw out the
full mould and to place the other mould under the box c.
While the latter is being filled, the first mould is exchanged for an empty one.
Each mould is therefore placed alternately underneath the box c and outside the
same, that is to say, either underneath the shoot u or in front of the box c, so as to
lie upon the table k.
Two or more moulding presses may be arranged radially on the casing a of the same
mixing machine or pug mill, each being connected with the same by a separate shoot
or feed canal u.
my said
Having now particularly described and ascertained the nature of
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In machines for moulding pasty materials into bricks or blocks, a device for
automatically pressing the mould against the piston casing or body of the press, chiefly
comprising a platform k which carries the moulds h and is subject to the pressure of
springs 8, substantially as described.
2. In a spring-operated device for pressing the moulds against the piston casing or
body of the press, a platform k provided with ledges m and i for ensuring the correct
position of the moulds after their insertion into the platform, substantially as
described.
3. In a spring-operated device for pressing the moulds against the piston casing or
body of the press, the combination of a movable platform k, with a pair of exchangeable
moulds h, so arranged that while one mould is being filled, the previously filled mould
may be exchanged for an empty one, substantially as described.
Dated this 14th day of February 1898.
FAIRFAX & WETTER,
Agents, 37 and 39, Essex Street, Strand, London.