UPPER FEED APPARATUS
Year: 1892

page_text: Date of Application, 21st June, 1892-Accepted, 21st June, 1893
In the accompanying sheet of ilustrative draw
Figure 1 shows a vertical section through the upper feeding apparatus, the lower
feeding apparatus, the revolving table, the lower press apparatus, and the upper
press apparatus.
Figure 2 is a horizontal section below the revolving table of the whole press.
Figure 3 is a horizontal section through the upper feeding apparatus and the
upper press apparatus.
Figure 4 is a vertical section through the lower feeding apparatus.
Figure 5 is a vertical section through the lower press apparatus.
Figure 6 is a side view of the upper press apparatus.
Figure 7 is a side view of the upper press apparatus.
Figure 8 is a top view of the revolving table apparatus.
Figure 9 is a vertical section of the delivery apparatus.
Figure 10 is a side view of the revolving table apparatus.
Figure 11 is a side view of the revolving table apparatus.
1. UPPER FEED APPARATUS.
Over the revolving table A. Figures 1 and 3 is the feed cylinder B in which the
shaft with the arms 6' fixed thereto is continually rotated in such a direction that
the material for making the brick is driven downwards. By means of the pin
rings c and c¹ of the double lever C and of the sleeve c" fixed vertically to the
shaft b but free in the direction of rotation, this shaft is moved upwards and
downwards from the upright shaft d which makes one revolution for each operation
of the press, being moved upwards during the rotation of the table and downwards
whilst the table is stationary that is during the feed operation. By this arrange-
ment the brick material which is fed into the cylinder B by the feed worm b
working in the cylinder B (Fig. 3) is by a double action of the wings b¹ pressed
downwards into the double mould a first in consequence of the screwlike working of
the wings & and next by reason of the depression or lowering of the whole wing
arrangement. During the movement of the table the screwlike action of the arms b¹
is arrested by the raising of the arm arrangement so that the revolving table is
relieved of the pressure of the mass of material and the filling of the two parts of
the double mould ceases at the same time whereas with axially-fixed wing shafts
not movable perpendicularly, the turning of the table leaves one mould open to the
filling action longer than the other.
On the lower part of the cylinder B is fixed the revolving cutting wheel & to
which the circular cutter d¹ bearing on the table is fastened, and this cutter is

page_text: continually rotated by the wheel d". By the revolving of the table the material is
cut off smooth to the height of the moulds as in the case with a non rotating circular
cutter.
2. LOWER FILLING APPARATUS.
111
On the shaft E Figure 4 which makes one revolution for each operation of the
press are mounted the cranks e and e' which carry the rollers ell and e¹ which work
in the race of the disc E¹ which is thus moved horizontally backwards and forwards
at certain intervals and in certain times. By means of the connecting rod f fastened
to levers f¹ and f¹ connected together and free on F and of the connecting rod fl
the stamp Fis also moved upwards or downwards in its guides. During the
stationary position of the revolving table and the delivery of the pressed brick
through the delivery apparatus L Fig. 9, the corresponding lower stamp g Figs. 4
and 9 is raised so high that its upper surface is level with the upper surface of the
table or of the mould a.
In this position of the lower press stamp g the table rotates and pushes this
stamp over the guide g¹ Fig. 2 during which time the stamp F is raised so that the
press g slides into the head of the press F1 that is that it is grasped or encircled by
the latter. The mould a also, closed at the top by the press a passes under the
feed cylinder B that is contrary to a known arrangement in which the mould open at
the top by the press passes under the feed hopper. By the mould passing under the
feed cylinder closed at the top any danger is avoided until the completion of the
stamping, of the material at the bottom of the feeding cylinder, granulated and
condensed and freed from air by the action of the wing-apparatus again separating
and absorbing air, which is easily the case if the mould passes open under the feed
cylinder as then the pulverised brick material falls into the mould consequently
making holes and filling itself with air.
During the time the table is stationary the press F is moved downwards and
therewith the under-stamp g which is under the feed cylinder and which closes
the top of the mould, and at a speed corresponding with that of the feed
apparatus described under I so that the filling of the mould with the condensed
material freed from air proceeds and it does not again form holes and draw air
into itself.
3. TABLE REVOLVING APPARATUS.
On the shaft E Figs. 8 10 and 11 which makes a revolution to each stamping
operation is fastened the conical spur wheel H. This engages at each revolution
in the gearing of the conical wheel H', imparts thereto a rotary motion, disengages
itself and leaves it stationary. With this wheel H₁ is connected the excentric
toothed wheel H" which again engages in the excentric toothed wheel H. The
position of the two excentric wheels H" and H to each other whilst the conical
wheel His stationary is such (see Fig. 8) that the shortest radius of H" and the
longest radius of Hare in action. The wheel H" which receives a uniform
speed of rotation from therefore imparts a decreased speed to H at the
beginning and end of the rotation and an increased speed at the middle of the
rotation. With the excentric wheel H is connected the toothed wheel J which
engages in the toothed circle on the table whereby the table is revolved with
increasing and decreasing speed at each part of the revolution corresponding to
the number of the moulds.
As by this arrangement the dead weight and inertia is greatly reduced at the
beginning and ending of the rotation of the table the permissible speed of the press
and consequently its output are considerably increased.
A LAW
D

page_text: agam drawn down,
5. UPPER STAMPING PRESS APPARATUS.
On the continuously driven shaft K Figs. 13 and 7 which makes one revolution
to each stamping action, are fixed the cranks K' and K", each of which carry a
roller i which project into the vertically movable runners M whereby these runners
are moved upwards and downwards at certain periods and in certain times. By
means of the connecting rod and the lever as also of the toothed sectors N
and N' which latter is fixed to the excentric shaft m, the vertical movement of the
groove M is transferred as a partial revolution of the shaft m whereby the
excentric m is moved backwards and forwards through a quarter of a revolution.
Thereby the vertical moving sliding head N to which the excentric frame o is
attached is moved up and down and is left stationary in its final positions. By
means of the draw-rod o which carries a nut o" in the head-piece N" and is
movable upwards therein whilst it is fastened by screw bolts to the upper press O,
the sliding head N" and the upper press O are connected together in such manner
that the upper press O can be raised alone but cannot be lowered alone.
Between the head-piece N and the upper press O the loading arrangement O
is so attached that it engages on the one hand with the sliding head-piece N and
on the other hand with the upper stamping press O. By the movement downwards
of the runner M which takes place when the table is stationary the upper press O
is raised, and by the upward movement of the same runner again lowered and to a
certain extent into the mould filled with brick material. In the upper position of
the upper press this stands several centimetres above the table that is away
from the mould so that when pressing damp material any smearing or rubbing of
the table during its revolution, is prevented, the upper press can be cleaned and
furthermore the upper stamp can be provided with raised parts on its pressing
surface in order to produce bricks with corresponding depressions, which is not the
case if the upper press is not specially raised and lowered but only moved vertically
to the extent of the play in the pressure apparatus.
The object of pressure apparatus O is to attain the double side pressing with a
single pressure. The pressure transferred by the arrangement O' at the pressing
operation is however less by the amount of the friction between the brick material
and the sides of the mould than the pressure developed by the piston K'-and
consequently the pressure from above is less than the pressure from below.
In order to give to each side an equal pressure the following arrangement is
made-
On the shaft K Figs. 1, 3 and 6, already described is fastened the crank which
carries a roller p', which engages in the horizontal runner P and by which this
runner is moved backwards and forwards. By means of the connecting rod k¹, the
levers and g and the bar the bolt lever S is moved backwards and forwards
corresponding to the movement of the runner P. These levers S are fixed to the
rotating bolts whilst the nuts of the bolts are not free to rotate so that the
bolts are screwed in and out of the nuts and by right and left threads the springs

page_text: of the apparatus O' are moved laterally and are more or less bent. The movement
of the runner P by which the tightening of the springs is produced begins
immediately before the end of the pressing operation from below and ends with
this stamping so that the pressure of the apparatus O' is increased by the amount
of the friction between the brick material and the sides of the mould and thus the
pressure is equally strong on both sides. After the stamping follows a movement
in the contrary direction of the runner P by which the springs of the arrangement O
are again released.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
With brick presses the simultaneous arrangement
1. Of the upper feed apparatus consisting of the feed cylinder B with the
revolving circular cutter d¹, of the vertically movable wing shaft b which by means
of the grooved collars c and c¹ and the double lever C is raised during the revolution
of the table and lowered whilst the table is stationary, whereby the table is
relieved during its revolution, the filling of the mould during the stationary period
by the double action of the screw-like wing system b'follows, the moulds laying
together are exposed for an equal time to the filling operation and the brick-material
is smoothly cut off to the height of the moulds by the revolving cutter.
2. Of the lower feed apparatus consisting of the runner E' with cranks e and e¹ and
of the stamp F' which by means of the rod f the levers and f" and the rod f
is moved upwards and downwards, whereby grasps when in its upper position the
under stamp 9 which is pushed over the carriage gl and draws the latter down,
whereby in order to maintain the condensed condition of the brick material and its
freedom from air, as effected by the action of the upper feed apparatus the moulds
come under the feed cylinder closed at the top by the lower press g and the lower
press stamp is forced down into the mould corresponding to the feed operations.
3. Of the table revolving apparatus consisting of the excentric wheels H"
and H which by means of the spur wheels H and H' are driven at intervals,
whereby by means of the wheel J and the toothed circle J' the table is revolved
with decreased speed at the beginning and end, and with increased speed towards
the middle of divisions of the revolution, by which means the permissible driving
speed of the machine, or its output is increased.
4. The lower press apparatus, consisting of the press pistons K' with arched
shaped lower surface, which is raised by the double crank K at an increasing speed
corresponding to the curves-further of the double heart-shaped runner K, which
works on the roller fastened to the piston K', whereby the piston is again drawn
down.
5. Of the upper press apparatus consisting of the runner M with cranks K'
and K", of the excentric shaft m and an excentric n with sliding head N" whereby
by means of the draw rod lever and toothed sectors N and N¹ and connecting
rod o, by use of the loading or pressure apparatus O', the upper press is specially
raised and lowered for the purpose of cleaning the upper stamp and the production
of bricks with depressions on the surface, as well as for the prevention of the fixing
of the table, further consisting of the runner P and cranks p and bolts t with
levers s whereby by means of the connecting rod pl the levers q and q' and con-
necting piece t the springs of the pressure apparatus O¹ are bent at the end of the
pressing operation and again released after the pressing operation, whereby the
upward pressure is increased by the amount of the loss in friction on the sides of
the mould.
Dated this 21st day of June 1892.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, Agents.