Improvements relating to the Manufacture of Nuts for Bolts, and to Apparatus therefor.
Year: 1893

page_text: Date of Application, 1st Apr., 1893
Complete Specification Left, 13th Dec., 1893-Accepted, 24th Mar., 1894
PROVISIONAL SPECIFICATION.
Improvements relating to the Manufacture of Nuts for Bolts, and to
Apparatus therefor.
I, ANTON URBAN, of Floridsdorf, near Vienna, in the Empire of Austria,
Ironmaster, do hereby declare the nature of this invention to be as follows:—
My invention relates to the manufacture of nuts for bolts and to apparatus
therefor.
•
According to the said invention I employ, instead of flat-iron as is customary,
rolled round or hexagonal iron rods from which pieces of suitable size are cut
in the hot state by means of an apparatus which automatically conducts these
pieces to the front of the press matrice and inserts them into the latter.
In the matrice the nut is then pressed in the well-known manner to the proper
form in a single operation.
Before proceeding to explain the several operations up to the finishing of the
nut I will give a concise description of the apparatus by means of which the round
or hexagonal pieces are cut from the rod, conducted to the front of the matrice and
inserted into the same.
To a projecting breast part of the machine employed I secure a tool plate on
which the cutter slide is supported in two, prismatic guides.
This slide carries the cutter clamped by means of screws.
In a bow shaped part is fixed the counter cutter necessary for cutting the round
or hexagonal iron rod, and which can be accurately adjusted to the proper distance
from the tool plate to correspond to the height of the nut.
In connection with the said cutter I provide a one-armed lever or finger which
by the aid of a flat spring is pressed against the piece cut off and in this manner
prevents it from being displaced or turned over.
By the movement of the slide in one direction the piece now severed from the rod
is placed in front of the hexagonal opening in the matrice. In this position the
slide remains until the action of the inserting device secured to the rear of the
breast has been terminated. This device comprises a slide which is arranged to be
displaced in-a-direction perpendicularly to the tool plate. In this slide is supported
a transverse slide to which the-inserting rod is secured. By the forward movement
of the stamp slide on the right hand side a-rod-attached thereto is moved in the
same direction. A tappet fixed to this rod strikes against-the lever, thereby
moving the slide of the inserting device against the tool plate. Thus the inserting.
rod will push the blank which is in front of the matrice into the latter. When the
said slide has passed to its terminal position and the blank has been inserted into
the matrice, the aforesaid rod is pushed rearwards by the transverse slide and a rod
to such an extent that the stamp on the right hand side can move quickly forward.
At the same time the cutter slide is caused to move so that the cutter returns to its
former position.
In the backward movement of the slide the lever or finger is raised a little
by the aid of a projecting nose on the same in order that the rod may be easily
inserted for the purpose of cutting off a piece. By means of a tappet on the
above mentioned rod, a lever is caused in the passage of the stamp slide on the
right hand side, to move in the same direction, thereby bringing the said slide
of the inserting device together with the inserting rod to their original position.

page_text: For pressing the blank to the proper shape I use a stamp which is clamped
in a holder secured upon the stamp slide on the right hand side; a punch on the
right hand side for the preliminary punching which is arranged so as to be
easily adjustable by means of small plates in the punch slide; a rod on the left-
hand side, which is arranged so that it may be adjusted in a holder attached to the
stamp slide on the left; and a punch for the finishing operation which is provided
on the left-hand side and is likewise clamped in an easily adjustable holder of the
punch slide on the left hand side.
The tool-slides upon which the aforesaid tools are clamped are guided in a
straight line in prismatic guides in the well-known manner, and a suitable to-and-
fro motion is imparted to them by means of rotary eccentrics or discs.
The cutter slide is moved by a lever and draw rod by the aid of an eccentric on
one of the driving shafts of the machine.
According to my improved method I proceed as follows in the pressing of
nuts, that is to say, a round iron rod or a rod rolled to the form of a hexagon
is pushed by the workman through the opening of the counter cutter. The
cutter slide with the cutter being caused to move cuts from the said rod a blank
of suitable height and conducts it to the front of the hexagonal opening of the
matrice.
As soon as the blank has passed to the front of the matrice the cutter slide
stops for a moment and the inserting device commences to act. When the blank
has been inserted far enough into the matrice by the inserting rod the latter
and the cutter slide move away from the matrice in order that the stamp on
the right hand side may in its forward movement introduce the blank quite into
the matrice. The stamp on the right now stops while the two punches on the
right and left hand side are caused to pass into the material.
By the pressure of the punch and stamp the blank inserted into the matrice is
pressed to the exact form of a nut.
'
As the punch on the right hand side moves rapidly backwards the punch on the
left hand side follows the same and completely perforates the nut. For this purpose
I provide a punching tool in the said stamp.
The further operations have more particularly for their object to push out the
nut and the piece severed therefrom. The stamp on the left hand side which
remains at the same place during the whole of the above described operation is now
caused to move forwards after the punch on the right hand side has been moved
away from the nut, and pushes the finished nut from the matrice. At the same
time the punch on the left hand side returns to its original position, and the punch
on the right hand side in the backward movement of the stamp on the same side,
throws the piece which has been punched out from the same. As the stamp slide
on the right hand side moves back it effects the backward movement of the inserting
rod by means of the before described lever mechanism.
During the backward movement of the stamps and punches to their original
position a piece is cut from the rod in the well known manner, in order to be
conducted to the front of the matrice and to be converted into a nut in the manner
herein set forth.
e A
+1 1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.

page_text: Improvements relating to the Manufacture of Nuts for Bolts, and to
Apparatus therefor.
I, ANTON URBAN, of Floridsdorf, near Vienna, in the Empire of Austria,
Ironmaster, 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 relates to the manufacture of nuts for bolts and to apparatus
therefor.
According to the said invention I employ, instead of flat-iron as is customary,
rolled round or hexagonal iron rods from which pieces of suitable size are cut in the
hot state by means of an apparatus which automatically conducts these pieces to the
front of the press matrice and inserts them into the latter. In the matrice
the nut is then pressed in the well-known manner to the proper form in a single
operation.
Before proceeding to explain the several operations up to the finishing of the nut
I will give a concise description of the apparatus by means of which the round or
hexagonal pieces are cut from the rod, conducted to the front of the matrice and
inserted into the same.
In the accompanying drawings.
Figures 1, 2, 3 and 4 show various sectional views of the improved apparatus.
Figures 5 and 6 shew a front and side elevation respectively of a round piece or
blank severed from the rod.
Figures 7 and 8 show similar views of an hexagonal piece or blank.
Figures 9 to 15 show various stages in the process of manufacture and
Figures 16 and 17 show a front and a side view respectively of a finished nut.
A is a tool plate secured to a projecting breast part B of the machine employed,
on which tool plate is supported in two prismatic guides, a cutter slide C. This
slide carries the cutter D clamped by means of screws. The cutter D is a steel
plate of the required thickness having in its vertical front edge a notch corre-
sponding in shape and size to about one half of the cross section of the rod u from
which the blanks are cut.
In a bow-shaped part E is-fixed the counter cutter F necessary for cutting the
round or hexagonal iron rod, and which can be accurately adjusted to the proper
distance from the tool plate A to correspond to the height of-the-nut.
In connection with the said cutter D, I provide a one-armed lever or finger G
acted upon by a flat spring H. The front end of this finger projects beyond the front
edge of the cutter D and is provided with a downward projection. Thus normally
the finger G is pressed against the piece cut off and in this manner prevents it from
being displaced or turned over.
The finger G is provided on its back with a pin co-operating with an incline on
the frame of the machine to raise such finger when the cutter D returns into its
backward position in order to facilitate the insertion of the rod U into the notch at
the front end of the cutter for the purpose of cutting off a fresh blank.
By the movement of the slide C in the direction indicated by the arrow through
the mean distance m the piece now severed from the rod is placed in front of the
hexagonal opening in the matrice J. In this position the slide remains until the
action of the inserting device secured to the rear of the breast B has been
terminated. This device comprises a slide N which is arranged to be displaced
upon M in a direction perpendicularly to the tool plate. In this slide is supported
a transverse slide to which the inserting rod P is secured. By the forward
movement of the stamp slide d on the right hand side of Figure 4 a rod R attached
thereto is moved in the same direction. A tappet S fixed to this rod R strikes

page_text: against a lever Q thereby moving the slide N of the inserting device against the
tool plate. Thus the inserting rod P will push the blank which is in front of the
matrice into the latter. When the said slide N has passed to its terminal position
and the blank has been inserted into the matrice, the aforesaid rod P is pushed
rearwards by the transverse slide O and a rod T to such an extent that the stamp
on the right hand side can move quickly forward. At the same time the cutter
slide C is caused to move in a direction opposite to that of the arrow and so that
the cutter D returns to its former position.
In the backward movement of the slide the lever or finger G is raised a little by
the aid of a projecting nose on the same, engaging with an incline on the frame as
is well understood in order that the rod may be easily inserted for the purpose of
cutting off a piece or blank. By means of a tappet S¹ on the rod R.the lever Qis
caused in the return movement of the stamp slide on the right hand side, to move in
the same direction, thereby bringing the said slide N of the inserting device
together with the inserting rod P to their original position.
For pressing the blank to the proper shape I use a stamp a which is clamped in a
holder or chuck e secured upon the stamp slide on the right hand side; a punch b
on the right hand side for the preliminary punching, which is arranged so as to be
easily adjustable by means of small plates in the punch slide; a rod e on the left
hand side which is arranged so that it may be adjusted in a holder attached to the
stamp slide on the left; and a punch f for the finishing operation which is provided
on the left-hand side and is likewise clamped in an easily adjustable holder of the
punch slide on the left hand side.
The tool-slides upon which the aforesaid tools are clamped are guided in a
straight line in prismatic guides in the well-known manner, and a suitable to-and-fro
motion is imparted to them by means of rotary eccentrics or discs.
The cutter slide C is moved by a lever K and draw rod L by the aid of an
eccentric on one of the driving shafts of the machine.
According to my improved method I proceed as follows in the pressing of nuts,
that is to say a round iron rod U, Figures, 2 and 3 or a rod rolled to the form of a
hexagon is pushed by the workman through the opening of the counter cutter F.
The cutter slide C with the cutter D being caused to move in the direction of the
arrow, cuts from the said rod U a blank g of suitable height, Figure 9, and conducts
it to the front of the hexagonal opening of the matrice J.
As soon as the blank has passed to the front of the matrice the cutter slide C
stops for a moment and the inserting device commences to act Figure 9. When the
blank has been inserted far enough into the matrice by the inserting rod P,
(Figure 10) the latter and the cutter slide C move away from the matrice, in order
that the stamp on the right hand side may, in its forward movement, introduce the
blank g quite into the matrice J, (Figure 11). The stampa on the right now stops
while the two punches band on the right and left hand side are caused to pass
into the material. (Figure 12.)
By the pressure of the punch and stamp the blank g inserted into the matrice .J
is pressed to the exact form of a nut.
As the punch 6 on the right hand side moves rapidly backwards the punch fon
the left hand side follows the same and completely perforates the nut, the burr h
being driven into the stamp a, Figure 13.
The further operations have more particularly for their object to push out the
nut and the piece severed therefrom. The stamp on the left band side, which
remains at the same place during the whole of the above-described operation is now
caused to move forward after the punch on the right hand side has been moved
away from the nut (Figure 14) and pushes the finished nut from the matrice.
At the same time the punch f on the left hand side returns to its original position,
and the punch 6 on the right hand side in the backward movement of the stamp on
the same side throws the piece which has been punched out from the same. As the
stamp, slide ou the right hand side moves back it effects the backward movement
of the inserting rod by means of the before described lever mechanism G.

page_text: Figure 15 shows the stamps, puncher and inserting device in their original
position. During the backward movement of the stamps and punches to their
original position a piece g is cut from the rod U in the well-known manner, in order
to be conducted to the front of the matrice and to be converted into a nut in the
manner herein set forth, (Figures 16 and 17).
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 :-
First. The manufacture of hexagonal nuts from rods of round or hexagonal
transverse sections when they are in the hot state, without loss of material
excepting a very small piece resulting from the punching of the hole substantially
as herein set forth.
Second. The automatic feed, and the insertion into the press matrice of a blank
cut off in the same apparatus when the material is in the hot state and which
is necessary for producing a hexagonal nut, substantially as herein set forth.
Dated this 13th day of December 1893.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.