IMPROVEMENTS IN MACHINES For MAKING HORSESHOE-NAILS
Year: 1884

page_text: I PER ADOLF NILSSON of Bahrenfeld near Hamburg Germany, Machinist, do
hereby declare the nature of my invention for IMPROVEMENTS IN MACHINES For
MAKING HORSESHOE-NAILS to be as follows:-
This invention relates to improvements in machines for making horseshoe-nails
and more especially to an improved machine for jumping the head of the nails;
and the objects of my improvements are mechanisms for feeding and for holding
the nail blanks during the jumping process. The nail blanks are filled into a
funnel and arrange themselves in consequence of the shape of the funnel in its
lower part in such a manner as to form series with the thicker part to the top and
the points towards the bottom.
Into a slit in the lower part of the funnel engages a finger, to which a horizontal
motion is communicated by a suitable mechanism, whereby the blanks are dropped
into a curved channel. As the section of the channel corresponds with that of the
blanks, the latter are guided by the channel in such a manner as to alter their
vortical position at the entry into a horizontal one at the outlet of the channel.
The pushing finger may be provided with a hinge and spring, which allow the
finger to fold together during its return motion, as in the meantime a new series
of nail-blanks has been arranged in the said funnel, whereover the finger has
to pass.
The curved channel is connected with a slide piece bearing an anti-friction-roller,
which is pressed by means of a spring to a cam provided with a cut; as soon as
the antifriction-roller of the slide-piece enters into the cut, the lowest part of the
channel is drawn by the spring backwards so far, as to place its outlet exactly
above a groove the sides of which are formed by a fixed dic and a moveable one
and which is closed at the bottom by means of a swinging die; the groove is of the
shape of a blank. Thus the lowest blank drops from the curved channel into the
groove, whereafter the channel, as the roller has arrived at the end of the cut of
the cam, is moved forwards again and is replaced above the groove by the front end
of the slide piece, wherewith the curved channel is coupled together. To prevent
the slide-piece from being lifted from the groove, while the nail-head is jumped, &
lever is pressed upon the slide-piece by means of an eccentric, thus keeping it
rigidly in its proper position during the jumping process.

page_text: When the blank is rigidly held by the three dies and the slide-piece, a die of a
very large surface is pressed on the nail head by means of the following mechanism.
The jumping die is fastened to a slide piece, which is pushed by a spring away from
the nail-blank. Against the tendency of this spring the nose of a rotating cam
moves a lever, the one arm of which pushes the slide-piece with the jumping die
towards the nail-blank thus jumping its head.
After this process the horizontal moveable die recedes and the lower die swings
sidewards thus allowing the blank to drop out of the machine. All surfaces used
for clamping and jumping the blanks may be fastened adjustably to their bearing
parts in order to allow the wear and tear to bo corrected; to effect this they are
kept in their proper positions by means of set screws.

page_text: I PER ADOLF NILSSON of Bahrenfeld near Hamburg Germany Machinist do.
hereby declare the nature of my invention for IMPROVEMENTS IN MACHINES FOR
MAKING HORSESHOE NAILS and in what manner the same is to be performed, to bo
particularly described and ascertained in and by the following statement :-
This invention relates to improvements in machines for making horseshoe nails
and more especially to an improved machine for jumping the head of the nail; and
the objects of my improvements are mechanisms for feeding and for holding the
nail-blanks during the jumping process.
I attain these objects by the mechanism illustrated in the accompanying drawings
in which Figure 1 is a side elevation of a machine constructed according to my
invention, and Figure 2 is a front elevation thereof; Figure 3 is a plan and
Figure 4 a vertical section at the line A B (Figure 3); Figures 5, 6 and 7
illustrate details. Similar letters refer to similar parts throughout the several
views.
The nail-blanks are filled into the funnel a and arrange themselves in consc-
quence of the shape of the funnel in its lower part in such a manner as to form
series with the thicker parts. to the top and the points towards the bottom. Into
a slit d in the lower part of the funnel a engages a finger e, which is fixed at the
socket pivotted at g. Rectangularly to the finger e, is attached to the socket f,
the lever which is induced to swing around its pivot g by the arm i of the angle-
lever i. k. l, when the foot-lever b is pressed down, thus causing the finger e to
advance inside the slit d and thereby to push the nail-blanks into the curved
channel c. The weight m of the arm & returns the lever .i. k. into its normal
position, as soon as the foot is taken away from the lever b, whereby the finger e
also goes back into its former position. But as, in the interval of time, other nail-
blanks have formed a new series in the lower part of the funnel, the finger c is
provided with a hinge e', which keeps the finger e rigidly when moving towards
the channel c (see Figure 6), but allows the finger e to fold down when moving in
the opposite direction (sco Figure 7); the spring e³ raises the folded part of the
finger again as soon as it has passed the arranged series of nail-blanks. The
movement of the lever i. k. I may also be produced by a finger attached to the main
shaft in lieu of by means of the foot-lever b.
The blanks pushed into the channel c slide downwards in consequence of their
own weight, but as the section of the channel is the same as that of the blanks,
they arrive at the bottom of the channel in such a manner, that their longitudinal
axes lay in a horizontal plane, which forms a right angle with the vertical plane,
in which their axes were, when the blanks entered into the channel.
The curved channel c is connected with the slide-piece c', which is pressed by
means of the spring ct, to the cam c³ of the main shaft n. As soon as the anti-
friction roller of the slide-piece c' enters into the cut of the cam c³, the channel c
is drawn backwards so far, as to place it exactly above the groove o formed by the
fixed block p and the two moveable blocks q and r; the groove o shows the shape

page_text: of the nail-blank. Thereby the lowest blank drops from the channel c into the
groove o, after which the channel c as the roller c³ has arrived at the end of the cut
of cam c³, is moved forward again and is replaced in its position above the groove o
by the front end of the slide-piece c¹. To prevent the latter from being lifted from
the groove o while the nail-head is jumped on, the lever & is pressed unto the slide-
piece by means of the finger s¹ of the main shaft and thus keeps it rigidly in its
proper position during the jumping.
8
When the nail-blank is rigidly held by the four blocks p, q, r and c', the die t
jumps the head thereon by means of the following mechanism. The diet is
fastened to the slide-piece t¹, which is pushed by the spring t away from the nail-
blank. Against the tendency of this spring t the nose t' of the cam t' fixed to the
main shaft n moves the lever t, the one arm of which pushes the slide-piece t¹
with the diet towards the nail-blank and thereby jumps the head on the nail as is
illustrated by Figure 3.
When the head is jumped on, the blocks and a slide sidewards and thus allow
the blank to leave the machine. The block q is withdrawn by the spring q³, as
soon as the noso q¹ of the main shaft n has passed the roller g³ of the block g. The
bottom block swings sidewards being fastened to the shaft r¹, which also is
provided with an arm
"
The latter is pressed by the spring to the cam 7 of the main shaft and goes
down, when it enters into the cut of such cam, thus causes an oscillation of the
shaft and thereby the block to swing sidewards, which motion will bo
maintained until the arm r is raised again by the projecting part of the cam.
All surfaces used for clamping and jumping the nail-blank are fastened adjust-
ably to their bearing parts in order to allow them to be ground off when worked
out; to effect this they are kept in their proper position by means of set screws.
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
1. In machines for jumping the heads of horseshoe nails the combination of the
spring-articulated finger e and the bell crank lever i.k. with the curved channel c,
substantially as set forth.
2. In machines for jumping the heads of horseshoe nails the combination of the
clamping blocks q, rand o¹ with the die t, the slide piece t¹, the lever and the
camt, substantially as described.
3. In machines for jumping the heads of horseshoo nails the combination of the
channel c with the sliding block c¹ and the can c³, substantially as specified.
4. In machines for jumping the heads of horseshoe nails the combination of the
sliding block o' with the lever s and the projection 8¹ substantially as set forth.
Dated this 5th day of Anout 1885