IMPROVEMENTS MACHINES FOR STITCHING BOOKS, AND IN APPLIANCES FOR MAKING FASTENERS
Year: 1883

page_text: LETTERS PATENT to Gerard Wenzeslaus von Nawrocki, Proprietor of the
firm of J. Brandt &. G. W. v. Nawrocki, Patent Solicitor and Civil Engineer
of 124 Leipzigerstrasse, Berlin, Germany, for an Invention of "IMPROVEMENTS
MACHINES FOR STITCHING BOOKS, AND IN APPLIANCES FOR MAKING
FASTENERS a communication from Gustav Haunhorst of Osnabrück in the
Empire of Germany
IN
"
PROVISIONAL SPECIFICATION left by the said Gerard Wenzeslaus von
Nawrocki at the Office of the Commissioners of Patents on the 5th March
1883.
GERARD WENZESLAUS VON NAWROCKI, Proprietor of the firm of J. Brandt &
G. W v Nawrocki Patent Solicitor and Civil Engineer of 124 Leipzigerstrasse
Berlin Germany "IMPROVEMENTS IN MACHINES FOR STITCHING BOOKS AND IN
APPLIANCES FOR MAKING FASTENERS (A Communication from Gustav Haunhorst
of Osnabrück in the Empire of Germany)
"
By the present invention a contrivance is devised in machines for stitching
books and the like whereby it is rendered possible to produce the clamps or
fasteners required for stitching, in the same machine and at the place where they
are to be used.
The invention essentially consists in the combination with the stitching machine
of a device whereby the automatically supplied wire is cut off and bent into the
shape of a fastener.
The machine consists of a hollow base upon which are, directly or indirectly
mounted all the other parts; on it is mounted a lever one end of which is fixed on a
weigh shaft and which carries at its other end a casing which receives the
mechanisms for forming the fasteners and for pushing the same through; of tongs
or nippers which are guided in a guide and are moved by a slide piece and pins in
converging slots in such a manner that the nippers bend the fasteners up when

page_text: pushed through and press the same against the underside of the book which is to
be stitched; and the machine lastly consists of a double armed lever with cam
groove at one end, of a short lever fixed on the aforesaid weigh shaft and of links
and levers connected thereto.
The machine is set in motion by a hand lever rigidly secured upon the weigh
sbaft on the outside of the base and can be brought back into its original position
by hand or by the action of a spring; within the base and likewise rigidly
connected with the weigh shaft is arranged the aforesaid short lever which gears
by means of a pin into a cam groove provided on the end of the double armed
lever and thereby causes, motion of that lever which at its other end is connected
with a plunger which on the one hand causes the fastener to be forced through the
papers to be stitched, and on the other hand communicates the movement to be
transmitted to the mechanism serving to form the fastener.
The shape of the cam groove is so chosen that the short lever after having traversed
a predetermined path ceases to have any influence upon the movement of that lever,
but in its further progress only serves to act, by means of connecting link, bell
crank lever wedge and lever upon the aforesaid slide piece so as to produce the
above described movement of the nippers; when all the parts have moved back
into the central position, the nippers are also withdrawn by a suitably arranged
spring.
The supply of the wire required for producing the fasteners, is effected from a
spindle by means of the eccentric disc, crank or the like, connecting rod and lever;
the lever causes the shifting of the wire by a given length by means of two pawls
on a guide block in such a manner that the wire being pressed against the guide
block by the one pawl is moved forwards then the wire is held fast by the other
pawl until such time that the lever has returned to the beginning of its stroke so
as to begin the operation anew.
Now as soon as a length of wire sufficient for the formation of the fastener has
been pushed forward the double armed lever is by the action of the hand lever
depressed and carries with it the plunger; simultaneously with this the plunger by
means of a piece thereon which is provided with a slot acts upon a lever which is
firmly connected with the part which effects the cutting off and bending of the
fasteners It only remains to show now how the little block upon which the
fastener has been bent, is removed so as to enable the fastener to be pushed out.
At the rear side of the casing, a spring is provided; this at its upper end is
rigidly connected with the aforesaid slotted piece and at its lower free end serves
to receive, not only the small block but also two pins. The block and the pins
through suitable apertures extend into the interior of the casing. The former so
.far as to allow the wire when cut off to be bent over it, the latter however so far
that when the fastener has been formed under the influence of a forked plate they
can be pressed back in the extreme position of the lever and hereby withdraw,
together with the spring the block fixed thereon also from the slotted piece thus
enabling the fastener to be pushed out of the casing.
To enable the proper position of the casing and of the nipper piece to be always
obtained for layers of paper differing in thickness, the casing is mounted in the
bead of the lever by means of a pivot free to turn thereon and is set by means of
screws; the head of the lever is provided with a scale and the casing with a
pointer so as to enable the two parts to be adjusted to any position with relation to
one another,

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Gerard Wenzeslaus von Nawrocki in the Great Seal Patent Office
on the 5th September 1883.
GERARD WENZESLAUS VON NAWROCKI Proprietor of the firm of J. Brandt &
G. W. v Nawrocki Patent Solicitor and Civil Engineer of 124 Leipzigerstrasse.
Berlin Germany "IMPROVEMENTS IN MACHINES FOR STITCHING BOOKS AND IN
APPLIANCES FOR MAKING FASTENERS A communication from Gustav Haunhorst
of Osnabrück in the Empire of Germany
"
By the present invention a contrivance is devised in machines for stitching
books and the like whereby it is rendered possible to produce the clamps or
fasteners required for "stitching" in the same machine and at the place where they
are to be used.
The invention essentially consists in the combination with the stitching machine
of a device whereby the automatically supplied wire is cut off and bent into the
shape of a fastener. In the accompanying drawings,
Figure I shows the machine in elevation and partly in section.
Figure 2 a section on A B
Figure 3 the automatic wire supply and.
Figures 4 and 5 the clamp forming device.
The machine consists of a hollow base C upon which are, directly or indirectly
mounted all the other parts; on it is mounted a lever D one end of which is fixed
on a weigh shaft 6 and which carries at its other end d¹ a casing d which receives
the mechanisms for forming the fasteners and for pushing the same through; of
the tongs or nippers r which are guided in the slide box q and are moved by the
slide piece q and pins u u¹ in converging slots in such a manner that the nippers
bend the fasteners up when pushed through and press the same against the
underside of the book, which is to be stitched; and the machine lastly consists
of a double armed lever E with cam groove E at one end of a short lever F
fixed on the aforesaid weigh shaft b and of the links b¹, 63, and levers 6' 6' connected
thereto.
The machine is set in motion by the hand lever G rigidly secured upon the
weigh shaft b, on the outside of the base C and can be brought back into its
original position by hand or by the action of a spring; within the base C, and
likewise rigidly connected with the weigh shaft b is arranged the aforesaid short
lever F which gears by means of a pin c into a cam groove c¹ provided on the
end E of the double-armed lever E, and thereby causes motion of the lever E
which, at its other end E' by the pin t is connected with the plunger e which on
the one hand by means of the tongue e¹ causes the fastener to be forced through
the sheets of paper to be stitched and on the other hand communicates the
movement to be transmitted to the mechanism serving to form the fastener.
The shape of the cam groove c' is so chosen that the short lever F after having
traversed a predetermined path, ceases to have any influence upon the movement
of that lever F but in its further progress only serves to act, by means of the
connecting link or rod b' bell crank lever 6' wedge 68 and lever b upon the
aforesaid slide piece q¹ so as to produce the above described movement of the
nippers r; when all the parts have moved back into the central position

page_text: represented in Figure 1, the nippers 7 are also withdrawn by a suitably arranged
spring 8.
The supply of the wire a required for producing the fasteners is effected from
the spindle a, by means of the stud a' the excentric a' (or disc, crank or the like)
connecting rod a³ and lever a'; the lever a causes the shifting of the wires by
a given length by means of the two pawls a' and a on the guide block in such
a manner that the wire being pressed against the guide block f by the pawl a' is
moved forwards, (that is to say from left to right in Figure 3 of the drawings)
then the wire is held fast by the other pawl a³ until such time that the lever a*
bas returned to the beginning of its stroke, so as to begin the operation anew.
Now as soon as a length of wire sufficient for the formation of the fastener has
been pushed forward, the double armed lever E is by the action of the hand lever.G
depressed and carries with it the plunger e; simultaneously with this the plunger e
by means of the check piece g thereon which is provided with the slot g' acts upon
the lever h which is firmly connected with the part k which effects the cutting off
and bending of the fasteners and is pivotted at h¹ (Figure 2) The manner in
which the cutting off and bending of the fasteners is effected under the influence
of the slot g¹ upon the lever h becomes apparent from Figures 5 and 6. It only
remains to show now how the projecting little block m, upon which the fastener
has been bent, is removed, so as to enable the fastener to be pushed out.
At the rear side of the casing d a spring 7 is provided; this, at its upper end is
rigidly connected with the aforesaid slotted check piece g and at its lower free end
serves to receive, not only the small block m but also the two pins n, n, The
block and the pins through suitable apertures extend into the interior of the
slotted check piece or casing g. The former so far as to allow the wire when cut off
to be bent over it, the latter however so far, that, when the fastener has been
formed under the influence of a forked plate i they can be pressed back in the
extreme position of the lever h and hereby withdraw together with the spring 1,
the block m fixed thereon also from the slotted check piece g thus enabling the
fastener to be pushed out of the casing.
To enable the proper position of the casing d at the end of the lever D.and
of the nipper piece q to be always obtained for layers of paper differing in thickness,
the casing d is mounted in the head d¹ of the lever D by means of the pivot o
(Figure 2) free to turn thereon and is set by means of the screws o¹ and o'; the
head d' of the lever D is provided with a scale and the casing d with a pointer
so as to enable the two parts to be adjusted to any position with relation to one
another.
Having now described. the nature of the said Invention and in what manner the
same is to be performed I declare that I claim as the Invention communicated.
to me
First-In machines for stitching books and the like the combination of the
stitching apparatus with an apparatus for producing the clamps or fasteners and
with a device for automatically feeding the wire substantially as described with
reference to Figures 1. 2 and 3.
Second-In stitching machines which simultaneously produce the fasteners and
automatically feed the wire forward also, the combination of the hand. lever G
with the lever F and the plunger e with the tongue e' on the one hand and of the
lever F with the rod b¹ bell crank lever b' wedge 63 lever b' and slide piece q¹ with
nippers on the other hand and of the arm D with casing d for pushing through
and bending the fasteners for the proposed object of stitching substantially as
described with reference to Figures 1. 2, 4 and 5.
Third-In the machines as firstly claimed the means for producing the fasteners
consisting in the lever h receiving its motion by the check piece g, the plate i and
knife k in combination with the small block m and pins n fixed on the spring
substantially as described-with-reference to Figures 1 2, 4 and 5. --

page_text: Fourth-In machines for stitching books and the like which at the same time,
form the fasteners also, the devices for automatically supplying the wire consisting
of the disc a' (or crank, excentric or the like) in combination with the lever a
with the pawls a³ and a and the guide block f substantially as described with
reference to Figure 3.
In witness whereof I the said Gerard Wenzeslans von Nawrocki bave hereunto
set my hand and seal this First day of September in the year of our Lord One
thousand eight hundred and eighty three
GERARD WENZESLAUS VON NAWROCKL (L.S.)
GERARD WENZESLAUS VON NAWROCKL. (L.S.)