Improvements in Rotary Presses for the Manufacture of Bricks and Conglomerated Articles in General.
Year: 1899

page_text: Date of Application, 8th May, 1899-Accepted, 22nd July, 1899
COMPLETE SPECIFICATION (AMENDED).
Improvements in Rotary Presses for the Manufacture of Bricks
and Conglomerated Articles in General.
We, EMMANUEL BROGNEAUX, of 90, Avenue Ducpectiaux, Brussels, Manufac-
turer, and HENRI STEVEN, of Gilly, Engineer, both in the Kingdom of Belgium,
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 rotary presses of the kind comprising a wheel in the
periphery of which are formed a great number of moulds each provided with a
plunger and with a cover the whole being arranged to revolve with the wheel.
The invention consists mainly in the method of operating the covers of the
moulds and in means for locking and unlocking such covers.
In the accompanying drawings;
Figure 1 is a vertical cross section.
Figure 2 is a vertical section on the line a b of Figure 1.
Figure 3 shows a detail of a portion of a mould with the cover closed.
Figure 4 shows a diagram of the frame as seen from the left hand side and pro-
vided with a groove for effecting the closing of the moulds by their covers and
Figure 5 is a similar view to Figure 4 but showing the frame from the right and
fitted with a race serving to effect the locking and unlocking of the covers.
A is the mould wheel formed with 20 moulds B. These moulds B are furnished
with lining plates C which on becoming worn may be replaced by new ones.
In the moulds the plungers D move, said plungers being provided with rollers E
mounted on pins F Figures 1 and 2 and adapted to run over the cam surfaces G¹ G²
and G3 fixed to the frame H H¹. Thus if the wheel revolves in the direction
indicated by the arrow Figure 2 and with the rollers E running over the cam
surfaces, the plungers D are caused to move in accordance with the curvature of
the cams.
In this manner the mould B, while in the position 1 shown at Figure 2,
is filled with material, the plunger being at the inner end of its stroke. In the
position 2 the cover or flap N closes, this being possible owing to the guide
groove QQ Figure 4 having released the roller P.
The positions numbered 3, 4 5 and 6 respectively show the various stages of
compression through the action of the cam Gi
The position numbered 7 indicates the moment at which the cover N opens,
the dog M being disengaged through the action of a cam guide R, Fig. 5 and the
(From the
cover opened through the roller P engaging in the groove Q Q¹.
drawing Figures 1 and 3 it will be clear how the roller is mounted on a lever O
connected to the cover N.) In the position numbered 8 the plunger recedes
slightly away from the moulded brick which has been previously compressed,
this being done with a view of preventing the brick sticking to the plunger head

page_text: at the moment of being ejected. This receding motion is obtained through the
intervention of a rigidly fixed angle iron K².
The positions numbered 9, 10, 11 respectively, show how the brick is ejected,
position 11 showing the ejected brick deposited on to the conveyor W.
The positions numbered 12, 13, 14, 15, 16, 17 and 18 are identical with that
numbered 11. The cam G³ prevents the premature return motion of the plungers
and also serves to regulate this return motion during the periods 19 and 20 and
is aided therein by the angle iron K' rigidly attached to the frame H.
The filling of the moulds is effected during the period 20 to 1, the closing of
the cover at 2, the compressing of the material at 3, 4, 5, and 6, the re opening
of the cover at 7, the receding of the plunger from the brick at 8 the ejecting of
the brick starts at 9 and finished at 11 when the brick is deposited on the con-
veyor W.
At 19 the plungers begin to descend and give room to the filling in of
material to be compressed and at 1 the material cases to enter and this is the
same with all the moulds in the wheel.
The cover N is formed with a lever O on which is mounted the roller l' which is
adapted to engage in the groove Q but which leave the said groove at Q Figure 4
so as to allow of the cover being closed, and which afterwards again re-enters the
groove at Q2 and thus once more opens the cover until it arrives at Q1 when the
cover closes. On the opposite side of the frame H¹ there is provided a race R
(Figure 1 section) which forms a ring of Ụ. shape but having unequal wings.
and y such wings serving for operating the dog M in the one or other direction.
In Figure 1 the dog is shown disengaged the wing y being shorter than the
wing, but during the period of compression the cover N must of necessity be
closed, the dog is caused to occupy the position shown in Figure 3 owing to the
wing y being at that point longer than the wing a, (a glance at Figure 5 will
help to explain this action). The wing y is shorter than the wing a for the entire
circumference except between the points y¹ and y2 which represents the period of
compression, while on the contrary the wing is longer than y for nearly the
entire circumference but is shorter than the latter between the points r¹ and x².
The dog is pivoted to the lugs m.
The wheel A is fast on the shaft J which latter revolves in bearings I provided
in the frame H H¹. On the same shaft is also keyed a toothed wheel S which is
rotated by the pinion V shown by dotted lines and which pinion is mounted on a
shaft U on which is fixed the driving pulley T.
The materials are charged into the moulds from a feed box Z.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim in a press for making bricks, or for compressing coal dust or other
materials is:-
1. The arrangement for closing the outer end of the moulds opposite their
plunger in connection with a mould wheel, and consisting of the hinged covers
fixed to one side of the wheel and adapted to be locked at the other side of the
wheel by a dog which is unlocked after the compressing of the material and then
allows the cover to turn upon its hinges so as to open the mould for discharging
the compressed material, said cover being re closed at the proper time by the aid
of a roller mounted on a lever connected to the cover entering a groove, and is
then locked by the dog which like the cover is also attached to the wheel.
2. An arrangement for locking and unlocking the cover during compression con-
sisting of a dog hinged to the rim of the mould wheel, such dog receiving an
oscillatory movement through the intervention of a ring fixed to the frame of
the machine.
3. A press for compressing bricks and other materials formed by two stationary
frames to which are fixed cams for moving the plungers, a wheel formed with
moulds at its periphery and keyed between the said frames on a shaft on which is
also keyed the driving wheel, plungers mounted and guided in the mould wheel

page_text: and each provided with rollers adapted to run on stationary cams fixed to the
frames, a stationary grooved, ring fixed to one of the frames and serving in closing
the covers of the moulds by acting upon rollers mounted on a lever connected to
the covers, a stationary ring fixed to the opposite trame and serving to engage
and disengage the dog for locking the covers, covers hinged to the mould wheel
for closing the moulds during the compressing of the material but being opened
after the completion of the compression so as to pennit of discharging of the
manufactured article and of re-charging the moulds.
Datad this 8th dow of Vov 1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.