Improved Means of and Apparatus for Moulding or Pressing Plugs or Blocks.
Year: 1893

page_text: Date of Application, 20th June, 1893
Complete Specification Left, 25th Nov., 1893-Accepted, 30th Dec., 1893
PROVISIONAL SPECIFICATION.
Improved Means of and Apparatus for Moulding or Pressing Plugs
or Blocks.
We, AUGUSTE FREDERIC BEYER and ADOLPHE GUSTAVE BEYER of
18 Rue de Lorraine, Paris in the Republic of France, Engineers do hereby
declare the nature of this invention to be as follows:-
Our invention has for its object to manufacture in an automatic rapid and
continuous manner blocks or plugs from more or less compressible materials of
uniform size shape and weight which may be varied in any required degree.
According to our invention we employ a disc or cylinder of suitable diameter and
thickness and having a transverse diametrical hole of such size and configuration
as may be required for the blocks to be produced. In this hole is fitted and works
a piston the travel or stroke of which is equal to the length of the blocks and is
limited by a fixed pin passing through a slot in the said piston or otherwise in
suitable manner.
The disc has an intermittent rotary motion imparted to it in any suitable manner.
The said hole in the disc comes opposite to and coincides with the supply orifice
of similar shape of a fixed shoot through which the material is fed from a receiver
in which it is formed cylindrical or required shape. This material when led
forward pushes the piston inwards and fills the hole behind it moulding itself to the
shape of the latter.
The disc then resumes its motion and in rotating the material is cut off along the
external contour or periphery of the disc.
The opposite side of the piston then comes in front of and coincides with
the supply orifice and by the entry of the fresh material as described the block just
formed is ejected from the disc at the other end of the hole and thus at each
revolution of the disc a plug is formed and ejected.
Dated this 20th day of June 1893.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.
•
COMPLETE SPECIFICATION.
Improved Means of and Apparatus for Moulding or Pressing Plugs
or Blocks.
We, AUGUSTE FREDERIC BEYER and ADOLPHE GUSTAVE BEYER of
18 Rue de Lorraine, Paris, in the Republic of France, Engineers, 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:
Our invention has for its object to manufacture in an automatic rapid and
continuous manner blocks or plugs from more or less compressible materials of
uniform size shape and weight which may be varied in any required degree.
According to our invention we employ a disc or cylindrical body of suitable
diameter and thickness and having a transverse diametrical hole of such size and
configuration as may be required for the blocks to be produced. In this hole is
fitted and works a piston the travel or stroke of which is equal to the length of the
blocks and is limited by a fixed pin passing through a slot in the said piston or
otherwise in suitable manner.

page_text: Fig. 3 is a section on W-Z of Fig. 2.
The material (having been previously crushed kneaded or mixed) is placed in
the forcing chamber or reservoir A whence it passes through the opening a into the
chamber B.
The moulding device proper consists of a hollow metal body C the chamber B of
which has a truncated conical form of a section diminishing from the opening a to
the outlet b.
In this chamber B is a heater D of gunmetal or other metal consisting of a
cylindrical portion e screwed upon the plug E which ends in a cone F¹ opposite to
the conical end G¹. The material entering from the chamber A spreads or flows
into B where the heater D maintains its fluidity or facilitates the agglomerating
thereof and facilitates its passage to b.
The heating of D is effected by any suitable means for instance by gas by means
of a tube e connected to the gas supply pipe f by a rubber pipe g.
The burner or jet d on the end of e having been ignited is inserted into the
central tube forming one with the plug E. Heat is thus imparted to the interior
of the heater and the products of combustion passing around escapes through the
outlet K into the open air.
On passing out of the chamber B at the material meets a piston F which is
free to move in a horizontal direction in the disc or cylinder but has its travel
limited by a spindle H situated at the centre of the disc which spindle H
through a slot L in said piston F thus the piston F is guided by the slot L
travelling on the said fixed pin H see Fig. 3.
passes
It is obvious that the material passing into b pushes the piston out of its path
until the opposite face thereof i coincides with the opposite end m of the disc.
This disc G is provided with a hollow vertical axle M turning in gun-metal
bearings N.
These bearings can be adjusted (such as by means of screws O) in such a manner
as to ensure close fitting contact of the disc G with the walls P (see Fig. 3) at the
point b where the material enters the chamber in G.
The material having entered behind the piston and having pushed the latter fills
up the space that was left free and becomes compressed in consequence of the
push or pressure due to the continuous feed of the material. Then the disc is
caused to move and when half a revolution has taken place the opposite face i of
the piston comes in front of the opening b.
The same operation now takes place again the material enters behind the piston
which it pushes forward thereby expelling the piece that was previously moulded
and compressed and so on.

page_text: The necessary intermittent rotary motion of the disc G is produced in the
following manner :-
The shaft M is furnished towards its lower end with a bevel gear wheel n
operated by a bevel wheel p. This wheel is formed of two toothed parts or
sections and two sections or parts r without teeth see Fig. 2. The rotary motion
of this wheel p being continuous (same being fixed on the main driving shaft see
Fig. 1) it will be seen that the rotary motion will be imparted to n only when the
teeth of the wheel p come in contact therewith. During the rotation of the
toothless portion the pinion n remains stationary and consequently the disc G
remains stationary also.
This disc is so arranged and mounted and fixed in position in such a manner that
when it is at rest the hole b and the piston F (or its other end i) will coincide
exactly with each other.
The axle M is provided at its centre with a tube constituting the spindle H for
limiting the stroke of the piston as hereinbefore explained.
This tube terminates at its lower end in a cone or bell mouths for receiving the
heat produced by the flame of a gas or other burner t.
As shown in Figs. 2 and 3 the disc G may be hollow or have an annulus or
chamber around or partly around the moulding chamber therein and same may be
filled with hot water through the opening and kept hot from the burner at t in
order to retain the fluidity and facilitate the agglomeration of the material.
The edges P of the opening 6 see Fig. 3 are in close contact on each side with
the peripheral walls of the disc G so as to ensure the close fit thereof and prevent
the escape of material.
A scraper Q (located at the point where the disc moves out of contact see Fig. 3)
serves the purpose of cleaning the walls and of removing any exudations of material
which may have occurred. This scraper is mounted on a pivotted lever T and is
adjusted (i.e. kept in contact) by a screw V.
The piston F is mounted in a lining S fixed in the disc G.
This lining S has for its object to enable the piston to be changed without
changing the disc.
It is thus possible to impart varying section size or shape to the material.
In cases where the materials would be very plastic or approaching a fluid state
the piston will be advantageously furnished with leather packings similar to those
desired
employed in hydraulic presses. The pistons may also be provided with any
engraving or impressiou in relief or in intaglio or otherwise so as to impart any
desired ornamentation etc. to the made piece.
In some cases and for some materials if desired the heating of the parts may be
effected by currents of hot water steam or instead thereof refrigerating currents
may be used.
The apparatus may be inspected and cleaned by removing the inspector-plug E
arranged at the rear but this can also be effected by providing a supplementary
inspection hole.
The driving gear may be of any ordinary or suitable description and need not be
further described here.
The discs may be provided in any number or they may be fitted with more than
one piston.
Our method of producing bodies (plugs blocks etc.) of any desired materials of
regular dimensions and densities enables us to employ our apparatus for producing
uniform compositions for the various mixtures employed in industry and to effect
the packing of the same in bags or packets in a direct manner so long as the
receptacles intended to contain the same have the same section as the pistons.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
--
1. A disc shaped block such as G bored or having a hole formed through same

page_text: transversely in combination and acting in conjunction with a free piston or device
such as F moving through a constant distance in said hole bored or formed trans-
versely and diametrically through the said disc shaped block such as G and means
for imparting an intermittent rotary motion in the circumferential direction of the
said block so that each end of the bore or hole in said cylinder (containing said
piston) will alternately come opposite so as to coincide with the opening such as b
of a feeding chamber substantially in the manner and for the purposes hereinbefore
described and illustrated in the drawings hereunto annexed.
2. The production of plugs or blocks externally smooth fluted or otherwise and
either round oval square or other suitable shape of uniform dimensions densities.
and weight substantially in the manner and by the means hereinbefore set forth.
Dated this 25th day of November 1893.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.