Improvements in Delivery or Discharging Devices for use in connec- tion with Presses for Moulding Slabs and the like..
Year: 1899

page_text: Date of Application, 27th Feb., 1899-- Accepted, 22nd Apr., 1899
Improvements in Delivery or Discharging Devices for use in connec-
tion with Presses for Moulding Slabs and the like..
I, PAUL WERNICKE, of Eilenburg, Saxony, Empire of Germany, Engineer, do
hereby declare the nature of my said invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement: -
The present invention relates to means for lifting pressed goods out of the
press and transporting them from the same to any desired place.
The invention relates more particularly to presses for producing artificial stones
and slabs. In these presses as is well known the pressure is usually applied to
the flat surface of the goods, in contradistinction to their edge surfaces-and for
obvious reasons, said pressure being applied vertically, whereupon the lower plate
is raised lifting the article pressed to the upper edge of the mould, so that the
workman is obliged to grasp the said slab at the edge surface and lift it from the
press before the lower mould plate begins to return. This operation is very
difficult in the case of heavy goods, because the slab formed is only supported above
the upper edges of the mould for a moment, when the plate begins to descend and
if the stone or slab is not removed from the mould before the plate begins its
descent, the same is again lowered back into the mould and it is practically impos-
sible for the workman to lift it out.
The object of the present invention is to provide a carriage having grippers
which grip the pressed slab and raise the same off the mould, subsequently turn-
ing it on end and depositing it at any desired point.
And in order to render the present specification more easily intelligible reference
is had to the accompanying drawings in which similar letters of reference denote
similar parts throughout the several views:-
Fig. 1 is a side elevation of the device with the carriage over the mould and
the goods shown in dotted lines as gripped by the grippers, the right hand part of
the elevation shows the carriage moved off the press and the goods turned up on
end.
Fig. 2 is a plan of Figure 1.
Fig. 3 is an enlarged elevation of the carriage, with the clamping device shown
in dotted lines in its position out of engagement,
Fig. 4 is a cross sectional elevation on line M-M of Figure 3 showing the
grippers drawn back and
Fig. 5 a similar cross section with the grippers thrown, forwards by their
springs.
Fig. 6 is a side elevation of a modified form of the invention,
Fig. 7 a plan of Figure 6 and
Fig. 8 a cross sectional elevation of Figure 6.
Referring to Figures 1 to 5: The carriage frame B is mounted on suitable

page_text: which
rolls adapted to run on rails a mounted on a table A and extending over the
same so as to run along at each side of the mouth of the mould from which the
finished article is lifted by the lifting mechanism, which is generally known and
needs no description. The frame B is provided with a series of pairs of inwardly
extending gripper plates c mounted fast on spindles f, which extend laterally
through the sides of the frame B, each pair of grippers having its members arranged
at opposite sides of the carriage. The spindles f have outer lever plates d fast
thereon (Figs. 3 to 5) said plates having downwardly extending arms
may be coupled at either side of the carriage by means of rods h. The gripper
plates c c are normally pressed inwardly in their gripping position by means of i
strong springs b. Pivotally attached outside of the frame is a second frame C,
said frame being provided with an upwardly extending handle C at its end by
means of which it may be tipped into the position shown in dotted lines at Figure 3.
This frame is advantageously provided with a wedge shaped lower edge adapted
when the frame is down to be inserted between the sides of the carriage and the.
plates d and to thus wedge out the gripper plates c against the force of their
springs, and place them in readiness to grip the goods. On one of the downwardly
extending levers g a roll i is provided, adapted, when the carriage is retracted
from the press to strike a projection k (Fig. 1) and throw all the levers g round
their spindles f, a quarter of a turn, whereby the said slabs will be turned on end
as-indicated in dotted lines at Figures 1 and 2.
The operation takes place in the following manner :-
The carriage with the frame C down and the grippers drawn back is run along
the rails a over the press. The stone or slab is raised by the press mechanism,
which-is-also-provided with a pin 7 (Fig. 1) which as the stone reaches its highest
position out of the mould, tilts the frame Cupwardly thus disengaging the grippers,
which close against the stone and grip the same as illustrated. The carriage-is-
now run back from the press the grippers taking the slab or slabs with it, and the
roll-i-runs against the stop k, turning the said slabs on end. After the slabs have
been transported to the desired-place, the frame C is depressed by hand, releasing
the grippers and allowing the slabs to rest on the ground or carrier board-or the
like. The operation is then repeated.
In Figures 6 to 8 a device is shown for operating the grippers by hand. A bar E
engages behind the lever plates d of the same, said bar E being provided with
headed studs n at either side behind which the bifurcated ends of a shear-like
fork D engage. The two parts of the said fork are pivotally connected and their
pivot is guided in a slotted bearing m of a bow fast on the frame B, the upper
ends of said fork, being formed to handles D¹. On pressing the handles D' together
the arms D of the fork will be forced apart and the grippers drawn back and on
releasing the same the grippers will close on to the slab by means of their springs.
The invention is not confined to the particular mechanism for operating the
grippers as this may be modified in a variety of ways without departing from the
spirit of the invention.
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:
1A carriage in connection with artificial stone and slab processes, for lifting
and carrying off the object pressed, from the mould, characterised by spring
clamps (c) arranged on the carriage, which are forced apart by means of a frame (C)
inserted wedge-like between the frame (B) and lugs (d), said clamps being auto-
matically released.
2: Une form of the invention covered by Claim 1, according to which, by the
cooperation of two shear-like levers (D) with the spring clamps (c) connected up by
means of a bar (E) the closing and opening of the clamps is attained.
3: In connection with the carriage covered by Claims 1 and 2, the arrange-
ment of lugs (d) which are formed to levers at one side and are connected to the

page_text: clamps, said lugs being adapted to strike a stop when the carriage is run in and
out and be turned 90° so as to turn the ware on end substantially as described.
4: The carriage substantially as described and illustrated in the accompanying
drawings.
Dat this 07th daham 1900
REGINALD W. BARKER,
Applicant's Agent,
56, Ludgate Hill, London, E.C.