Improvements in Machines for Making Capsules for Bottles, Jars, . and the like.
Year: 1889

page_text: Date of Application, 29th July, 1889
Complete Specification Left, 1st Feb., 1890-Accepted, 8th Mar., 1890
PROVISIONAL SPECIFICATION.
Improvements in Machines for Making Capsules for Bottles, Jars,
. and the like.
I PAUL BRUCH, of 48 Lothringer Strasse, Berlin, in the Empire of Germany,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention for Improvements in machines for making capsules for bottles jars
and the like has for its object to construct a machine in which the capsules are
formed by means of a reciprocating stamp and a fixed mould, each capsule being
pushed by the stamp into the mould and through the mould into an open ended
tube below the mould and either forced through the tube by the capsule subsequently
introduced into a suitable receptacle below, the said tube being surrounded by a
heated water jacket so as to dry the capsules; or a number of the said tubes are
mounted on a revolving table which is rotated through one division after the formation
of each capsule, the tubes being subsequently passed through a space partially
surrounded by heated water so as to dry the capsules which are then forced out of
the tube by a plunger.
In one modification of a machine constructed according to my invention suitable
more especially for the manufacture of smaller capsules, the mould is fixed centrally
in a support secured to a bed plate which is suitably arranged to receive moulds of
different sizes. A tube passes through and is secured centrally to the said support
and depends from it and its internal diameter is so arranged that it fits the capsules
sufficiently tight to prevent them sliding down it by their own weight. The tube is
surrounded by an annular water reservoir which is arranged to be heated by any con-
venient means so as to dry the capsules in their descent down the tube. The central
space of the annular reservoir is sufficiently large to allow of the passage of a tube
suitable for capsules of the largest size desired to be made by the machine.
The stamp is secured to a rod or frame sliding in guides rigidly connected to the
bed plate and is reciprocated by any suitable means such as a lever connected by a
link to a crank so that it alternately enters and is withdrawn from the mould. The
stamp rod also carries a loose cover which is free to slide up and down on the rod
but is kept in its lowest position by a weight. Its under annular surface is conical and
is grooved or fluted and corresponds with the upper part of the mould. The top
of the mould is surrounded by a ring, the internal diameter of which is equal to that
of the discs from which the capsules are to be made.
The discs from which the capsules are to be made are moistened and fed evenly
from a board to the ring surrounding the top of the mould and the stamp is lowered,
the weighted cover first gripping the discs and holding them, the stamp then
entering the mould and forming the capsule and finally forcing the finished but moist
capsule into the heated tube. The stamp is then raised and itself raises the loose
cover ready for a repetition of the above operations. As the capsules are formed,
those previously made are forced down the tube and into a suitable receptacle below.
In a modification of the machine more especially suitable for the manufacture of
larger capsules, each capsule is forced into a separate open-ended tube mounted on a
revolving table so as to pass centrally under the mould. The table is conveniently
rotated by pawl and ratchet mechanism operated from the reciprocating stamp through
one division after the formation of each capsule. The tubes are carried by the table
through a space partially surrounded by heated water and the capsules are finally
forced out of the tubes into a suitable receptacle by a plunger conveniently operated
from the reciprocating stamp.
11
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page_text: COMPLETE SPECIFICATION.
Improvements in Machines for Making Capsules for Bottles, Jars,
and the like.
I PAUL BRUCH of 48 Lothringer Strasse Berlin in the Empire of Germany,
Engineer, 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 :-
My invention for improvements in machines for making capsules of paper or
other suitable material for bottles jars and the like has for its object to construct a
machine in which the capsules are formed by means of a reciprocating stamp and a
fixed mould, each capsule being pushed by the stamp into the mould and through the
mould into an open ended tube below the mould and either forced through the tube,
by the capsules subsequently introduced, into a suitable receptacle below, the said
tube being surrounded by a heated water jacket so as to dry the capsules; or a
number of the said tubes are mounted on a revolving table which is rotated through
one division after the formation of each capsule, the tubes being subsequently passed
through a space partially surrounded by heated water so as to dry the capsules which
are then forced out of the tube by a plunger.
In one modification of a machine constructed according to my invention suitable
more especially for the manufacture of smaller capsules, the mould is fixed centrally
in a support secured to a bed plate which is suitably arranged to receive moulds
of different sizes. A tube passes through and is secured centrally to the said support
and depends from it and its internal diameter is so arranged that it fits the capsule
sufficiently tight to prevent them sliding down it by their own weight. The tube
is surrounded by an annular water reservoir which is arranged to be heated by any
convenient means so as to dry the capsules in their descent down the tube. The
central space of the annular reservoir is sufficiently large to allow of the passage of a
tube suitable for capsules of the largest size desired to be made by the machine.
The stamp is secured to a rod or frame sliding in guides rigidly connected to the
bed plate and is reciprocated by any suitable means such as a lever connected by a
link to a crank so that it alternately enters and is withdrawn from the mould. The
stamp rod also carries a loose cover which is free to slide up and down on the rod
but is kept in its lowest position by a weight. Its under annular surface is conical
and is grooved or fluted and corresponds with the upper part of the mould. The top
of the mould is surrounded by a ring, the internal diameter of which is equal to that
of the discs from which the capsules are to be made.
The discs from which the capsules are to be made are moistened and fed evenly
from a board to the ring surrounding the top of the mould and the stamp is lowered,
the weighted cover first gripping the discs and holding them, the stamp then entering
the mould and forming the capsules and finally forcing the finished but moist capsules
into the heated tube. The stamp is then raised and itself raises the loose cover ready
for a repetition of the above operations. As the capsules are formed, those previously
made are forced down the tube and into a suitable receptacle below.
In a modification of the machine more especially suitable for the manufacture of
larger capsules, each capsule is forced into a separate open ended tube mounted on
a revolving table so as to pass centrally under the mould. The table is conveniently
rotated by pawl and ratchet mechanism, operated from the reciprocating stamp;
through one division after the formation of each capsule. The tubes are carried
by the table through a space partially surrounded by heated water and the capsules
are finally forced out of the tubes into a suitable receptacle by a plunger, conveniently
operated from the reciprocating stamp.
In the accompanying two sheets of illustrative drawings
Fig. 1 is a plan of a machine for making capsules for bottles jars and the like
constructed according to my invention shewing the arrangement suitable more
especially for making smaller capsules and also the modification suitable more especially
for making larger capsules.

page_text: Fig. 2 is a front elevation of a machine suitable more especially for making smaller
capsules constructed according to my invention and
Fig. 3 is a vertical longitudinal section of the same.
Fig. 6 is a horizontal section of the capsule.
Fig. 4 is a vertical section shewing the modifications in construction suitable more
especially for making larger capsules and
Fig. 5 is a side elevation of the same.
Fig. 7 is a horizontal section of the modified construction of capsule.
Referring to Figs. 1, 2 and the mould 1 is fixed centrally by means of a clamping
hoop and screws on the support 2 secured to the bed plate 3 and made of a sufficient
size to take the largest mould desired. Below the mould 1 and passing through and
depending centrally from the support 2 is a tube 4 which passes through the bed
plate 3 and into the central space of an annular water reservoir 5 arranged below the
bed plate and heated by lamps 6 as shewn or by any convenient means. The central
space of the annular water reservoir 5 and the openings through the support 2 and
bed plate 3 are made sufficiently large for the passage of a tube for the largest sized
capsules desired. The internal diameter of the tube 4 is equal to the external
diameter of the capsules so that the capsules are sufficiently tight in the tube to prevent
them falling down by gravity.
The water reservoir 5 is provided with a suitable outlet for the escape of steam.
The stamp 6 is secured to a rod 7 sliding in guides 8 supported by standards 9 fixed
upon the bed plate 3. The guides & also serve as tie bars for the standards 9. The
rod 7 is operated so as to reciprocate the stamp in the required manner by means of
the lever 10 pivotted to the standards 11 fixed upon the bed plate 8. A pin 12
passing through the guide rod 7 takes into elongated slots in the forked end of the
lever 10 and the other end of the lever is connected by a link 13 to the crank 14,
itself operated through the gearing 15 and crank handle 16 as clearly shewn. The
stamp 6 also carries a loose cover 17 free to slide up and down on it but weighted so
as always to tend to descend unless otherwise prevented. In order to prevent the
loose cover from falling off the stamp 6 it is secured to the plate 18 which is free to
slide on the stamp rod but cannot pass over the head of the stamp. The under
annular surface of the cover 17 is conical and is radially grooved or fluted and
corresponds with the upper part of the mould. The top of the mould is surrounded
by a loose ring 19 having an internal diameter equal to that of the discs from which
the capsules are to be made.
The operation of the machine is as follows:-
The discs from which the capsules are to be made are moistened and fed from five
to seven at a time, from the board 20 into the ring 19 and the stamp 6 is lowered by
means of the handle 16, the weighted cover 17 first gripping the discs and holding
them, the stamp then entering the mould and forming the capsules, and finally
forcing the finished but moist capsules into the heated tube 4. The stamp 6 is then
raised and itself raises the loose cover 17 ready for a repetition of the above
operations. As the capsules are formed those previously made are forced down the
tube 4, where they are dried by the heat from the reservoir 5, into a suitable
receptacle below.
In order to be able to make in the same machine capsules of a larger size (fig. 7)
whose edges in consequence of its superposed folds will not allow of the moist
capsules being forced down through the tube 4 by the succeeding capsules, the pipe +
and annular reservoir 5 are dispensed with and each capsule is forced into a separate
open ended tube 21 figs. 1, 4 and 5 mounted on an annular revolving table 22 so as
to pass centrally under the mould. The table 22 is made in two parts and passes
through an opening in the mould as clearly shewn in fig. 1. It is kept centrally in
position by means of the rollers 23. The table 22 is conveniently rotated, after the
formation of each capsule and when the stamp has been withdrawn rom one tube 21,
so as to bring the adjacent tube 21 under the mould, by means of the shaped
rod 24 sliding in guides 25 mounted on the bed plate 3. One end of the rod 24
surrounds the rod 7 and is moved upwards by a projection on the said rod to a
.

page_text: certain determined height. The downward movement is stopped by the adjustable
block 26. The lower end of the rod 24 is connected to one end of a chain 27 passing
over a roller 28 and having its other end connected to a sliding rod 29 guided in
bearings 30 and surrounded by a spiral spring always tending to draw the rod 24
downwards. The rod 29 carries a pawl 31 working in teeth on the periphery of the
table 22 which is thus rotated through one division on the upward motion of the
stamp 6. The table 22 is prevented from turning backward by the pawl 32. The
tubes containing the formed capsules are carried by the table through a space in a
vessel 33 containing water which either completely or partially surrounds the said
space except at the ends. The vessel is heated by any convenient means so as to
dry the capsules in their passage through the space. The dried capsules are forced
out of the tubes after passing through the heated space by the plunger 34 attached
to the rod 7 as clearly shewn and are collected in a suitable receptacle. In this
arrangement the discs are fed singly to the ring 19.
°
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
1. A machine for making capsules for covering bottles jars and the like consisting
of a reciprocating stamp, of a mould, and of a heated tube arranged centrally below
the mould and into which the capsules are forced by the stamp and moved onwards
and finally expelled by the capsules subsequently introduced substantially as
described.
2. A machine for making capsules for covering bottles jars and the like consisting
of a reciprocating stamp of a mould, and of an annular series of heated tubes passing
centrally under the mould and into which the capsules are forced by the stamp, the
series of tubes being moved onwards to bring the succeeding tube under the mould
after the formation of each capsule and being passed through a heated chamber after
which the capsules are successively forced out of the tubes by a plunger operated from
the stamp substantially as described.
3. The construction of machines for making capsules for bottles jars and the like
substantially as described with reference to the drawings.
Dated this 1st day of February 1890.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.