ROVEMENTS IN MACHINES FOR AUTOMATICALLY INSERTING PRESSING- BOARDS OR SHEETS BETWEEN THE FOLDS OF CLOTH OR FABRIC
Year: 1882

page_text: "
LETTERS PATENT to John Clayton Mewburn of 169 Fleet Street in the City
of London Patent Agent and Consulting Engineer for an Invention of
IMPROVEMENTS IN MACHINES FOR AUTOMATICALLY INSERTING PRESSING-
BOARDS OR SHEETS BETWEEN THE FOLDS OF CLOTH OR FABRIC" Communicated
to him from abroad by the firm C. H. Weisbach of Chemnitz, in the
Kingdom of Saxony, German Empire, Machine. Makers
.
"
PROVISIONAL SPECIFICATION left by the said John Clayton Mewburn
at the Office of the Commissioners of Patents on the 16th December 1882.
JOHN CLAYTON MEWBURN of 169 Fleet Street in the City of London, Patent
Agent and Consulting Engineer IMPROVEMENTS IN MACHINES FOR AUTOMATICALLY
INSERTING PRESSING-BOARDS OR SHEETS BETWEEN THE FOLDS OF CLOTH OR FABRIC "
[A communication to me from abroad by the firm C. H. Weisbach of Chemnitz, in
the Kingdom of Saxony, German Empire, Machine Makers]
"
This Invention relates to the construction of a machine by which pressing-
boards, pressing paper or cards are automatically inserted between the folds of
cloth or fabric. For this purpose a table is arranged which is kept in its highest
position by a spring and which table descends in proportion to the weight with
which it becomes loaded; above this table two rollers travel, working in horizontal
guides, arranged above the table and near the sides of the same; between these
rollers the cloth or fabric enters and is spread over the table into regularly arranged
folds upon the table by the travelling rollers.
There are two sets of pincers arranged in combination with the above mentioned
rollers and travelling with the rollers which pincers are opened and closed at
proper times.
At each change in the direction of travel of the said rollers one pair
of pincers will be closed and will seize or take hold of a pressing board, drawing
the same along with it. If the travel of the rollers is completed in one direction,
the same pair of pincers will be opened, thereby releasing the pressing board,

page_text: which will consequently be deposited upon the cloth or fabric. At the same time
the other pair of pincers at the other side of the rollers will be closed, in order to
take hold of another pressing-board at the other side of the machine drawing the
board over the newly formed fold of the fabric and releasing and depositing the
same at the completion of travel.
The pressing boards are arranged at both sides of the machine within sliding
boxes; these boxes preferably run upon rails. The side of these boxes facing the
machine is removed, in order to allow one or more pressing rollers to enter the
boxes and bear against the pressing boards so as to keep the latter in a vertical
position. With each box mechanism is combined by which a pressing board at the
proper time is raised and pushed in a curved guide so that the board is ready to be
seized at its protruding end by the above mentioned pincers at the proper time.
The invention embraces several modifications of the above mentioned mechanism
by which the pressing boards are successively raised in their vertical position, in
order to be pushed partly in a horizontal position.
Having stated the nature of the invention I will now describe a machine
constructed to carry the same into effect.
The table is carried by a rod which may ascend or descend within a column so
that the table supported by a spiral spring may be lowered according to the weight
of fabric and boards deposited thereon. Above the table and at both sides of it,
two horizontal guides are arranged in which two rollers travel which fold the fabric
on the table. The rollers are mounted in a plummer block common to both, which
block is moved by a lever and rod to which motion is imparted by a crank. The
lever has its fulcrum at its lower end. The arrangement, construction and mode of
working of the two sets of pincers at both sides of the rollers are as follows. Let
us suppose that the pincers at the left hand side are closed and drawn along a
pressing board while those at the right hand side are open and will be closed at the
completion of this travel in order to seize a pressing board.
The fixed jaw of the pincers is mounted upon a rod; to this jaw an angle piece
is hinged, the lower and smaller part of which forms the movable jaw of the
pincers.
The angle piece is subject to the pressure of a spring so that the latter closes the
pincers. If the pincers are to remain open, a rod subject to the pressure of a.
surrounding spring is in such a position that it bears upon the back face of the
angle piece by a protruding nose; if this rod comes against the bevilled part of a
plate arranged for the purpose, the rod is shifted in its axial direction or
lengthwise, thereby releasing the angle piece and the spring will cause the pincers
to close.
If the pincers are to be opened, an arm which together with a second arm and a
spindle forms a bell crank lever, will come against a spring stop or pin, the second
arm thereby depressing or turning the angle piece; by this motion of the angle
piece, the rod with its nose will, by pressure of its surrounding spring, be shifted
and thereby coming behind the angle piece will cause the pincer to remain open.
This play will be repeated at each change of travel.
I would remark, that the right hand side pincers will be closed by touching the
bevilled plate at the right hand side of the machine and will be opened by touching
the spring stop or pin at the left hand side of the machine, whereas the left hand
side pincers will be closed by touching the bevilled plate at the left hand side of
the machine and will open by touching the spring stop or pin at the right hand
side of the machine.
Each closing of one pair of pincers has for its result the scizing of a pressing
board while the opening of that device deposits a pressing board.
The boards are vertically arranged within the boxes running on wheels and
rails; the boxes are pressed towards the middle of the machine by weights so that
rollers always bear against the pressing boards. Friction discs bear in the same
manner against the upper part of the boards; if these friction discs are turned. or
revolved by means of bevil wheels they will cause by friction the pressing boards

page_text: .
to rise a certain distance; at the same time a horizontal rod will come. underneath
the lower edge of the board raised. This rod being raised by means of levers and
by cords running over rollers will push or shift the board in an upward direction
and will cause the board to enter into and pass through a bent or curved guide so
that the board protrudes with its horizontal part from the guide and may be seized
by the pincers at the proper time. The levers at the two sides of the machine are
connected by a horizontal rod, and receive their motion by arms resting upon
a cam.
J
t
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"
I:
This raising and pushing of the boards in succession may be caused by Various
mechanism. I may employ for this purpose a cam which by continuous rotation
will cause the pressing board to rise when the larger diameter of said cam bears
against the pressing board.. Or by imparting intermittent rotation a round or
circular disc may take the place of the cam. Or I may employ an endless band
working by friction, which band if moved intermittently will raise or lift the
pressing board. If continuous travelling is imparted to such band, the same may
cause the board to be lifted or raised by a rod taken underneath the board.
Or I may employ an arrangement in which a rod causes the board to be lifted
and pushed, the said rod being worked in its upward motion by a lever, cords and
rollers, and in its downward motion by its own weight.
Or I may use a friction sector which may cause the raising and pushing of the
press board by oscillating or rotary motion.
د.
Or I may use a friction pusher to which up and down motion and to and fro
motion are imparted by a crank guide and oscillating lever.
Or I may use an eccentric friction pusher arranged so that by moving in an
upward direction. it presses against the board while releasing the saine by moving
in a downward direction.
Or I may arrange the pressing boards (contrary to all former devices) in a
horizontal position upon a fixed table. Upon that end of the upper board which is
in the direction of motion a friction roller bears. This roller is rotated by an
endless chain or cord receiving motion by a lever, ratchet and pawl.
Instead of the curved guide before described I may employ a drum or cylinder
receiving intermittent rotary step motion; upon part of this cylinder an endless
band revolves with it. The board entering from below between the band and the
periphery of the cylinder will be carried into a horizontal position.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Clayton Mewburn in the Great Seal Patent Office on the
16th June 1883..
JOHN CLAYTON MEWBURN of 169 Fleet Street in the City of London Patent
Agent and Consulting Engineer "IMPROVEMENTS IN MACHINES FOR AUTOMATICALLY
INSERTING PRESSING-BOARDS OR SHEETS BETWEEN THE FOLDS OF CLOTH OR FABRIC "
(A communication to me from abroad by the firm C. H. Weisbach, of Chemnitz, in
the Kingdom of Saxony, German Empire, Machine Makers)
This invention relates to the construction of a machine by which pressing-boards,
pressing-paper or cards are automatically inserted between the folds of cloth or
fabric. For this purpose a table is arranged, which is kept in its highest position
by a spring and which table descends in proportion to the weight with which it
becomes loaded; above this table two rollers travel working in horizontal guides,
arranged above the table and near the sides of the same; between these rollers the
cloth or fabric enters, and is spread over the table into regularly arranged folds
upon the table by the travelling rollers.
There are two sets of pincers arranged in combination with the above mentioned
rollers and travelling with the. rollers which pincers are opened and closed at
proper times. At each change in the direction of travel of the said rollers one pair
of pincers will be closed and will seize or take hold of a pressing board drawing
the same along with it. If the travel of the rollers is completed in one direction,
the same pair of pincers will be opened, thereby releasing. the pressing board, which
will consequently be deposited upon the cloth or fabric. At the same time the
other pair of pincers at the other side of the rollers will be closed in order to take
hold of another pressing-board at the other side of the machine drawing the board
over the newly formed fold of the fabric and releasing and depositing the same at
the completion of travel.
The pressing boards are arranged at both sides of the machine within sliding
boxes; these boxes preferably run upon rails. The side of these boxes facing tho
machine is removed in order to allow one or more pressing rollers to enter the
boxes and bear against the pressing boards so as to keep the latter in a vertical
position. With each box mechanism is combined by which a pressing board at the
proper time is raised and pushed in a curved guide so that the board is ready to
be seized at its protruding end by the above mentioned pincers at the proper time.
The invention embraces several modifications of the above mentioned mechanism,
by which the pressing boards are successively raised in their vertical position in
order to be pushed partly in a horizontal position.
Having stated the nature of the invention I will now describe a machine con-
structed to carry the same into effect. Figure 1 is a side view partly in section
and Figure 2 a plan.
a is the table carried by a rod 9 which may ascend or descend within a column
so that the table, supported by a spiral spring, may be lowered according to the
weight of fabric and boards deposited thereon. Above the table and at both sides
of it two horizontal guides are arranged in which two rollers travel which fold the
fabric on the table a. The entrance of the fabric between such rollers is indicated
by the vertical arrow. The rollers are mounted in a plummer block common to
both, which block is moved by the lever h by means of the rod k, to which motion
is imparted by the crank i. The lever h has its fulcrum at its lower end. The
arrangement, construction and mode of working of the two sets of pincers at both
sides of the rollers b b are more clearly to be seen in Figure 12 (side view), and

page_text: Figure 13 (plan). Let us suppose that in the position shown all moving parts
travel in the guides in the direction of the arrow, so that the pincers at the left
hand side are closed and draw along a pressing board, while those at the right hand
side are open and will be closed at the completion of this travel in order to seize
a pressing board.
The fixed jaw a¹ of the pincers is mounted upon a rod a; to this jaw an angle
piece b' is hinged, the lower and smaller part of which forms the movable jaw of
the pincers.
The angle piece 6 is subject to the pressure of a spring c¹ so that the latter
closes the pincers. If the pincers are to remain open, the rod d subject to the
pressure of a surrounding spring is in such a position that it bears upon the back
face of the angle piece b¹ by a protruding nose; if this rod d¹ comes against the
bevilled part of the plate the rod d is shifted in its axial direction or
lengthwise, thereby releasing the angle piece b¹ and the spring c¹ will cause the
pincers to close.
If the pincers are to be opened, the arm f' which together with a second arm el
and a spindle g¹ forms a bell crank lever, will come against h¹ the arm e¹ thereby
depressing or turning the angle piece b¹; by this motion of the angle piece the
rod d with its nose will by pressure of its surrounding spring be shifted, and
thereby coming behind the angle piece b' will cause the pincer to remain open.
This play will be repeated at each change of travel.
I would remark that the right hand side pincers will be closed by touching
at the right hand side of the machine and will be opened by touching h' at the left
hand side of the machine, whereas the left hand side pincers will be closed by
touching at the left hand side of the machine and will open by touching h¹ at
the right hand side of the machine.
Each closing of one pair of pincers has for its result the seizing of a pressing
board while the opening of that device deposits a pressing board.
་
The boards are vertically arranged within the boxes q running on wheels and
rails; the boxes are pressed towards the middle of the machine by the weights t so
that the rollers always bear against the pressing boards. The friction discs d
bear in the same manner against the upper part of the boards; if these friction
discs d are turned or revolved by means of the bevil wheels n³ n6, they will cause
by friction the pressing boards to rise a certain distance; at the same time the
horizontal rod e will come underneath the lower edge of the board raised. This
rod e being raised by means of levers m and r and by cords running over rollers o
will push or shift the board in an upward direction and will cause the board to
enter into and pass through the bent or curved guide f so that the board protrudes
with its borizontal part from the guide and may be seized by the pincers at the
proper time. The levers m m which are connected by a horizontal rod receive
their motion by the intermediation of the arms p and m' resting upon the cam l.
This raising and pushing of the boards in succession may be caused by various
mechanism. I have shown several modifications in Figures 3 to 8. Figure 3
shows in full line a cam 1 which by continuous rotation will cause the pressing
board to rise when the larger diameter of said cam bears against the pressing
board. Or by imparting intermittent rotation a round or circular disc such as is
indicated in dots may take the place of the cam.
Figure shows an endless band 2 working by friction, which band if moved
intermittently, will raise or lift the pressing board. If continuous travelling is
imparted to such band, the same may cause the board to be lifted or raised by a
rod 3 taking underneath the board.
Figure 5 illustrates mechanism in which the rod 4 causes the board to be lifted
and pushed the said rod being worked in its upward motion by a lever, cords and
rollers and in its downward motion by its own weight.
Figure 6 illustrates a friction sector 5 which may cause the raising and pushing
of the press board by oscillating or rotary motion.

page_text: .
In Figure 7 à friction pusher 6 is shown to which up and down motion and to
and fro motion are imparted by a crank guide and oscillating lever.
Figure 8 represents an eccentric friction pusher 7 arranged so that by moving in
an upward direction it presses against the board, while releasing the same by
moving in a downward direction.
In Figure 9 the pressing boards are arranged (contrary to all former devices) in
a horizontal position upon a fixed table. Upon that end of the upper board which
is in the direction of motion, a friction roller 8 bears.
This roller is rotated
by an endless chain or cord, receiving motion by a lever, ratchet and paul as
indicated.
Figure 11 shows on a larger scale the curved guide f through which the pressing
Instead of
boards are transferred from a vertical position into a horizontal one.
this guide I may employ the device illustrated in Figure 10 in which a drum or
cylinder 9 receives intermittent rotary step motion; upon part of this cylinder an
endless band revolves with it. The board entering from below between the band
and the periphery of the cylinder will be carried into a horizontal position.
Having now described the nature of the said invention as.communicated to me
and in what manner the same is to be performed I declare that I claim :-
.
First In a machine for automatically inserting or depositing pressing boards.
or sheets between the folds of cloth or fabric, the combination of the table,
descending in accordance with the weight upon it, with the travelling rollers and
pincers and with the movable side boxes, containing the pressing boards, which are
raised and pushed automatically in order to be seized by the pincers substantially
as hereinbefore described.
1
r
Second-The arrangement of the machine as illustrated in Figures 1 and 2 and
herein before described..
Third: The arrangement and construction of travelling pincers which are
opened and closed automatically (as shown in Figures 1 and 2 and more clearly
illustrated in Figures 12 and 13) for seizing, transporting and depositing the
.pressing boards in combination with the travelling rollers b and table a as herein- :
before described.
Fourth: The device for raising and pushing the pressing boards from their
vertical position into the horizontal position, as illustrated in Figures 1 and 2, and
the modifications of such device, as illustrated in Figures 3 to 8 for the same
purpose.
+
Fifth-The bent or curved guide f (Figures 1 and 11) for guiding the vertically
'placed pressing boards into the horizontal position in combination with travelling
pincers and the device for lifting the pressing boards; also the device illustrated in
Figure 10 to be used in place of the bent guide f.
i
Sixth-The device illustrated in Figure 9 for pushing the pressing boards, if.
originally situated or placed in a horizontal position.
In witness whereof I the said John Clayton Mewburn have hereunto set my
hand and seal this fifteenth day of June One thousand eight hundred and
night, thunn