Improvements in Wire-stitching Machines.
Year: 1886

page_text: Improvements in Wire-stitching Machines.
I, CARL GEBLER, of Leipzig in the Empire of Germany, Manufacturer, do hereby
declare the nature of this invention to be as follows :—
The wire stitching machine comprised in this invention is intended for the stitching
or fastening of paper such as pamphlets etc. or other materials.
To a suitable stand carrying the work table on which the leaves of paper etc. are
arranged, is hinged at the back a jaw whose front end carries the stitching device.
On a projection above this jaw is pivoted a lever whose front end controls and actuates
the stitching device and whose rear end is connected by an adjustable hinge to the
upper arm of a long pedal lever extending down into the base of the machine and
pivoted therein by means of a fixed pin passing through a curved slot in the lever
and sliding therein. The stitching device is as follows. On the front of the hinged
jaw are arranged vertical guides in which slide a pusher for pushing down the clamps
and in front of the last a cutting and bending plate for forming the said clamps. Over
the pusher and plate is fastened a bridge having a vertical slot in which slides a pin
fixed to the plate so as to limit the travel of the plate relative to the jaw. In the
back of the plate is also a vertical slot in which slides a pin fixed to the pusher. At
the sides of the cutting plate are pivoted two depending pawls each having somewhat
the shape of an inverted T, the arms of the T are rounded, the inner arms project
into slots in the sides of the pusher so as to carry the cutting plate and pusher down-
wards together until the pawls arrive at recesses in the guides, when the outer arms
of the pawls fall into the latter and the pusher is left independent of the cutting plate.
The wire is introduced from the side under the cutting plate which descends so that
its edges clip off the portion of wire under them. The edges are not square but
V shaped so that the wire cut off has V shaped or pointed ends which enables it to
better penetrate the material to be clamped. By this method of cutting, a small
X shaped portion of wire is cut off at the forward end, this is allowed to fall out
through an inclined channel in the guide. The wire is fed by a sliding clip, which,
when it moves towards the stitching device, clips the wire and presses it therein as
hefore mentioned. A spring retains the wire when the clip returns. The travel of
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page_text: the clip is adjustable for different lengths of wire-When the piece of wire is cut
off the cutting and bending plate presses it down against a block temporarily introduced
into the slot, this arrests the center of the wire whilst the ends are pushed down by
the inclined sides of the plate. The wire is then automatically removed from under
the cutting plate by a spring pressing on the back of the block, and brought under the
pusher. At this stage the wire has somewhat the shape of three sides of a hexagon.
The pusher now moves down and pushes the wire into a continually narrowing
channel which causes the wire to assume the shape of three sides of a square, it now
issues from the jaw and is pressed through the paper etc. into a slot in the table in
which moves vertically a specially shaped lever which bends down the ends of the
wire under the paper. This lever receives its movement through a system of levers
from the pedal. Instead of causing an upward movement of the last named clamping
lever the table may be given a downward motion by the action of the upper jaw
thus pressing the ends of the wire against a fixed. lever. The table is caused to
resume its position by a spring.
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COMPLETE SPECIFICATION. '.
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Improvements in Wire Stitching Machines.
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I, CARL GEBLER of Leipzig, in the Empire of Germany, Manufacturer, do hereby
declare the nature of my invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
This invention relates to the stitching together of leaves or sheets of paper cardboard
or other material by means of wire clamps, as in the stitching of books pamphlets,
card-boxes and other articles, and consists in certain improvements constituting a
machine for forming said "clamps and driving" and‘fastening the same through the
respective matter to be stitched.
Referring to the accompanying drawings illustrating the machine embodying the
said improvements and also certain imodifications thereof, Fig. 1 is a perspective view
of a land machine adapted more especially for the stitching of pamphlets.
Figs. 2

page_text: and 3 are front elevations of the head of the machine showing the wire feed and clamp
forming and driving mechanism in two positions. Figs. 4 and 5 are similar views
showing the position of the mechanism respectively before and after the descent of the
driver. Fig. 6 is a plan view of the lower end of the head Fig. 5. Fig. 7 is a similar
view showing the head with cover plate upon lower portion (the same having been
omitted in Figs. 2 to 5 for clearer illustration). Fig. 8 is a side view of Fig. 7.
Fig. 9 illustrates on a larger scale the formation of wire clamps with pointed ends.
Fig. 10 is a plan of the lower end of the head Fig. 9. Fig. 11 and 12 illustrate on an
enlarged scale the mechanism contained in the table E and serving for bending down
the ends of the clamps after they have duly perforated the materials to be sewn, and so
fixing the clamps.
Figs. 13 and 14 are side views of a device hereafter described to be used in the over
clamping of edges. Fig. 15 is a side elevation of a foot machine arranged especially
for over clamping of edges as in the formation of card boxes.
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Fig. 16 is a front elevation thereof.
Figs. 17, 18 and 19, 21 and 22 are front elevations on an enlarged scale of the head
with arrangements for over corner clamping. Fig. 17 also illustrates a modified wire
feed. Fig. 20 is a side view of Fig. 21. Fig. 23 is a rear view of the plate covering
the front of the head." Figs. 24 and 25 show the table or lower jaw of the respective
machine in two positions.
Referring to Fig. 1A is the stand or frame. B is an upper jaw hinged thereto,
C the head carrying the clamp forming and driving mechanism. D is the wire feed,
E the table of the apparatus upon which the articles to be stitched are supported.
F the wire, and the clamp formed thereof.
The mechanism of this machine is set in motion by means of the hand lever 1, in the
following manner. The lever 1 is pivoted to the frame at 3 and extends forward over
the jaw B to form the driving lever 2 which by a downward movement forms and
fixes the clamp. To the lever 2 is attached the plate 4 carrying the rollers 5. 5, (Fig. 2).
When the lever 1 is pressed down the plate 4 moves downward and during the first
portion of its movement the rollers 5, 5 fastened to the same press upon the slanted
portion 40 of the arm 6 and move the latter as shown by Fig. III about its pivot
against the head. The lever 6 feeds the wire into the head. For this purpose it
carries at its lower end a device consisting of the tooth 7, the counter-bearing or seat
therefor 9 and the cam 8. The tooth 7 is pressed by the spring 10 against its counter
bearing and consequently the wire passed between 7 and 9 is held thereby.
wire is therefore shifted into the head by the movement of the lever 6 towards the
head. In the head it is cut off formed into a clamp and driven through the material
to be stitched. The spring 11 holds the wire against backward movement on the
return of the feed arin 6 but allows in consequence of its position a movement of
the wire in the direction towards the head.
The
On the ascent of the lever 1, the wire feed arm 6 transporting lever is caused to
return by the rollers 5 riding upon the slanted portion 40 of the lever 6. Since with
this backward motion the wire is drawn between the parts 7 and 9 the tooth 7 would
be liable to become worn by the friction. To prevent this the cam 8 is pivoted on
the counter-bearing 9 and abuts, when the lever 6 moves towards the head, against
the abutment 12. By this means the cam is driven over the tooth 7 and reinains
thereover during the return travel of the lever 6 thus holding the peg 7 away from
the wire and preventing friction against the same. The cam 8 only falls back on the
wire, when the cam abuts against the abutment 13 by which it is expelled from above
the tooth 7 and the latter is enabled to again fall upon and hold the wire for the
purpose of enabling the same to be again introduced into the head. The head C
consists essentially of a bed plate 14 (Fig. VIII) the driver 15 the cutter plate 16,
the cover 17 with clamp forming or bending block 18 and a bridge 20.
The bridge is provided with a slot and on the cutter-plate is fixed a pin 21 gearing
in said slot and serving to determine the movement of the cutter-plate 16. The
movement of the driver 15 is determined by a slot in the cutter-plate 16 and a pin 38
fixed on the driver and gearing into said slot. The wire introduced into the head

page_text: The
arrives in the slot 22 in the block 18 and the length of wire is first cut off by the
edge 27 on the cutter plate 16 against the edge 23 (Fig. II). The ends of the wire
are then bent down by the said cutter plate by means of the inclines behind the
cutter edge 27 and the corresponding opposite edge 25 onto or round the block 18 so
as to form a clamp. The cutter-plate 16 then remains at rest and the driver 15 moves
on alone. The lower end of the driver 15 abuts against the hinder side 26 of the
block 18, Fig. VIII and deflects or presses back the said block and arrives upon the
clamp and forces the same out of the head, through the material to be sewn.
block 18 is preferably pivoted in the cover 17 by a pin 48 and retained in pressure
upon the back plate 14 by a spring 49. The hereafter described arrangement serves
to allow first the driver 15 and the cutter plate 16 to move together, and subsequently
the driver 15 to move alone. On the cutter plate 16, two pawls 24 are pivoted these
pawls have on their lower ends projections on each side. In the sides of the driver 15
and also in the side guides are corresponding recesses 35 and 37 respectively into
which the said pawls are adapted to catch. During the commencement of the descent
of the driver and cutter plate, the said pawls 24 fall into the recesses 35 of the driver
and are held therein by the pressure of the side guides of the frame of the head C
so that the driver and cutter plate descend together.
On the arrival of the pin 21 at the end of the slot of the bridge, the pawls are
simultaneously pressed into the two corresponding recesses 37 of the guides, the
driver 15 is thereby released and moves down alone to drive the clamp out of the head.
To allow the wire to be introduced into the recess 22 of the block 18 which serves
to hold the centre of the wire during the bending down of the ends the guide-block 19
is arranged beside this bending block. A similar recess 39 in this block serves to
continue the recess 22 towards the wire entrance 23 and so form a course leading the
wire direct into the recess 22. When the cutter 16 cuts off the wire, the said guide
block 19 is lifted or deflected by the cutter from out the channel in the same manner
as the main block 18.
The apparatus shown in Figs. XI and XII serves for bending round the clamp
and it consists of an edge or table 28 held in the jaws 29 (Fig. 1) two pivoted
deflecting plates 31 and the central striker 33.
A spring 30, as shown by Fig. I tends to raise the edge 28. When the clamp is
pushed through the material to be stitched, the points of the clamp are partially bent
inwards by means of small plates 31 to the centre. of the bender 33. And on further
pressure of the head upon the table 28, the latter moves downward, while the
striker 33 remains stationary, and the material is tightly pressed against the striker
by the head C through the hand lever 1 and the points of the clamps are bent round
towards the material and pressed onto it.
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The wire used with such a machine is preferably round in cross section and
about thick. But flat wire may likewise be employed. If however the wire is
too broad, the resistance of the material, to be stitched, to the wire becomes excessive,
and the latter bends instead of penetrating.
To allow however of stitching with thick or broad wire, the extremities of the
points of the clamp are sharpened in the following manner: The cutters 27 and 25
Fig. IX which must of course correspond in breadth to the thickness of the wire,
are both sharp and are not made with straight cutting surface as the cutters shown
in Figs. V and VI, but with a more or less angular cutting surface, as shown by
Figs. IX and X. To allow the clamp to be provided simultaneously and uniformly
with points on both sides, the wire is so far conducted into the head, as to allow it to
be also cut to a point on the farther side. For this purpose the counter cutters 34
and 32 must have a shape corresponding to the cutters 27 and 25. The waste
piece 41 falls out through the opening 36, the formation, stitching and fixing of the
clamps being effected in the same manner as described above.
Fig. XV represents in side elevation a wire stitching machine for fastening
together corners of paste-board by over clamping.
A is the body of the machine. B the upper and C the head. D the wire feed.
E the table-Here the lever 1 is replaced by a system 50, 53, 47, 52 operated by

page_text: foot pressure in a manner obvious from the illustration in Fig. 15. The lever 50 is
connected by a finger at 55 to the lever 56 and is guided by the slot 42 engaging
the pin 43 in such a manner that the lever 50' is raised and the head C consequently
depressed by pressing upon the pedal 52.
In this machine the lower striker 58 is caused to move upward and clench the
clamp under the material. It is therefore necessary to move the said striker upward
and to hold the head stationary during this period. For this purpose the said striker
is operated by a lever 51 pivoted at 61 to the frame this lever ends rearwards in a
'curved extension adapted to be depressed by a roll 57 on the lever 50. For this
purpose the curved slot in the lever 50 is so arranged, that the fulcrum 55 and
therefore the lever 56 remains at rest during the last period of the stroke of said
lever while the clenching mechanism is moved by the roll 57 on the lever 50
arriving and pressing on the said extension of the lever 51.
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To enable the above described head to be 'used for stitching paste-board' corners
that is to say by a cross clamp lying over the corner, it must be somewhat modified.
Its lower end 54 being corresponding shaped to the corners to be fastened (Fig: XVIII).
The shape of the supporting table is also modified' to allow the paste boards to be
placed edge to edge in the relative positions they are to occupy. It is also necessary
in driving the clamp that the points of the latter should be directed vertically upon
the respective surfaces of the boards. For this purpose the pins:59 Figs. 13 and 14
are arranged in the head cover, at the end of the wire-channel; which pins deflect the
lends of the clamp, formed as aforedescribed and conduct the same vertically against
the respective surfaces of the paste boards (Figs. XVIII to XXII), while the pusher
drives the clamp into the material. For this purpose the pins 59 are provided with a
projection 60 forming a surface on which the ends of the clamps arrive and are bent
linwards.
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The pins are capable of being turned and therefore of being adjusted for various
angles of box making. The pins 59 may be secured to a lever 62 the latter pivoted
at 74 to the cover 17. The lever has at its 'rear part an inclined part 79 corresponding
> to an inclination 63 on the driver 15. By means of this arrangement the lever lifts
the pins out of the channel after the driver has driven the clamp into the material
this occurring when the inclined part of the driver arrives upon that of 'the pin-
lever. 62 and moves the latter. The driver afterwards clenches the clamp through
the material. A spring 64 causes the pin-lever to press the pins continually into the
5 clamp channel.
The apparatus represented by Figs. XXIV and XXV serves to bend round the
clamp-shanks passed through the material. The shanks are turned inwards by the
plates 65 which are set in motion by the main striker 58 actuated by the lever 51.
The clenchers 65 are guided between the bearing plates 78 and the surface plates 75 of
the table. When therefore the striker 58 is raised by the lever 51, the plates 65 move
together in their lateral guidings, arrive against the clamp-points and bend the same
upward under the pasteboards. Anti friction rollers 66 may be arranged under the
clenchers 65 as shown in Figs. 24 and 25.
In over corner clamping machines it is very important for exact work, that the
wire be always introduced evenly into the head. The two rollers 67 and 68 serve to
introduce and simultaneously straighten the wire.
The rollers are impelled through pins 69 fastened upon the roller 67 by the hook 70
and the bell crank lever 71 operated from the driver by the pin 77 moving in the
slot 76. The hook seizes on each downward motion of the driver one of the said
pins and carries along the same and so causes the roller to revolve so far as to feed a
certain quantity of wire into the head, at the same time rolling the same straight.
The pressure between the two rollers is- adapted to be adjusted by set screw 72
operating upon the bell crank lever 73 carrying the bearings of the roller 68 and
pivoted at 80 to the frame of the machine.
It will be understood that the pedal 52 with connections 47, 53 may be dispensed
with in favor of an eccentric action 44, 45 upon shaft 46 driven by power as in
Figure 15.

page_text: Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is:
In wire stitching machines:
1. For forming and driving wire clamps The combination of a frame, a wire
cutter 16 whose motion is limited with regard to the frame, a clamp driver 15 whose
motion is limited with regard to the cutter, pawls 24 and recesses 35, 37; with a
block 18 for forming the clamp and adapted to be displaced on descent of the driver 15.
2. The combination of a driver, cutting and bending.plates 27, 25 with a block 18
adapted to be inserted between said plates and having a recess or equivalent 22 for
receiving and supporting the centre portion of an inserted wire.
3. The combination of the block 18, having wire support 22 with the block 19,
having the guide channel 39 for the purpose set forth.
4. For clenching inserted clamps: The side plates 31 in combination with striker 33
operating said plates substantially as set forth.
5. For clenching inserted cross corner clamps: The plates 65 in combination with
the striker 58 substantially as set forth.
6. In wire feeds: A feed arm 6 having rail 40 in combination with driver 15
having rolls 5, 5 for operating said feed arm.
7. In wire feeds: The feed arm 6 in combination with tooth 7, counter-seat 9,
spring 10 and spring 11, substantially as set forth.
8. The combination of tooth 7 with cam 8 and abutments 13 and 12 operating said
cam as and for the purpose set forth.
9. In wire feeds: The rollers 67, 68 pegs 69 and bell crank lever 71 having
catch 70 and slot 76 in combination with driver 15 substantially as set forth.
10. The combination of the driver 15 having a recessed end 54 and inclined
plane 63 with the pins 59 having the sliding surfaces 60, and lever 62 with inclined
plane 79, substantially as and for the purpose set forth.
11. The device for operating the head and driver consisting in the combination of
lever 56, arm 50 having inclined slot 42 and fixed pivot 43, substantially as set forth.
Dated this 15th day of June 1887.
CARL GEBLER.
By Herbert & Co.,
67, Strand, W.C.,
Agents to Applicant.