Improvements in Feeding Apparatus for Horse-shoe-nail and like Machines.
Year: 1895

page_text: Date of Application (in United Kingdom), 30th Sept., 1895
Complete Specification Left, 26th June, 1896-Accepted, 26th Sept., 1896
PROVISIONAL SPECIFICATION.
Improvements in Feeding Apparatus for Horse-shoe-nail and like
Machines.
I, IVAR TJERNELD, of Munkfors Bruk, Munkfors, Sweden, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to feeding apparatus for horse-shoe-nail and like
machines, and has for object to provide mechanism that will separate from one
another blanks that are turned in diametrically opposite lateral directions, deliver
them into different channels, so that they may afterwards be forwarded to the
machine all turned in the same direction. According thereto I take advantage of
the usual unsymmetrical form of two of the sides of the blank, and employ a
magnet (or magnets) to which or each of which is given a limited movement
towards and from such and unsymmetrical side of the blank, thereby either
removing the blank from the channel in which it is situated or leaving it there
according to which side of the blank is turned towards the pole and consequently
to whether the pole comes in contact with the blank or not. The removed blank
is loosened from the magnet when brought by it over the mouth of a side channel,
into which it drops. In this way all of the blanks that are similarly turned drop
into the same channel and in their further progress those in one of the channels
or in both are turned by some suitable device, for instance, by passing through a
somewhat twisted chaunel, in such a way that all the blanks shall arrive at the
machine similarly turned.
In the annexed drawings,
Figs. 1, 2 and 3 represent an arrangement suitable when the blanks are to be
brought to the machine with their heads foremost, Fig. 1 being a front elevation
thereof, Fig. 2 a section along the line of Fig. 1, and Fig. 3 a section along
the line y y of Fig. 2, the magnets being omitted in Fig. 3 for the sake of
clearness.
Figs. 4, 5, and 6 represent an arrangement suitable when the blanks are to be
brought to the machine with the points foremost; Fig. 4 being a side elevation,
Fig. a section along the line 22 of Fig. 4, and Fig. 6 a plan thereof.
In using either of the arrangements, the blanks are by some suitable means,
fed in a row between two horizontal bars 11 so situated, that the blanks rest
with their heads on the upper edges of, and turn their unsymmetrical sides
towards the said bars. Under and along the bars 11 is a bar 2, which is provided
with teeth on its upper surface, and is so situated, that the blanks rest somewhat
forwardly inclined with their points upon the bar 2. The blanks are moved
forward along the bars 11 by giving the bar 2 an up and down movement by
means of some suitable mechanism. In the examples shown, the bar 2 is attached
to a slide 4 which is adapted to move in guides on a fixed. part 3 and carries a
.

page_text: bent piece 5 provided with a pin 6 for connecting it to the mechanism for giving
the up-and-down movement to the bar 2. In the arrangement illustrated in
Figs. 1, 2, and 3, the inner sides of the bars 11 are cut away at their forward
ends so as to form a widening through which the head of a blank can just pass
when the blank is, by the last tooth of the bar 2, pushed so far that the said head
reaches the said widening. When the head drops through the widening, the blank
turns over the rounded piece 8 and falls down the upright channel 9 until stopped
by the bottom 10 thereof. As it is desirable that the blank should not rebound
when it comes against the bottom of the channel, it is advantageous to make the
said bottom elastic. The movable magnets 11, 11 which may be either permanent
magnets as shown, or electro-magnets, are located on the two sides of the channel 9
and are attached to pieces 12, 12 which are movable in guides and to which the
requisite movement towards and from the channel 9 must be given by means of
some suitable mechanism. In the examples shown, the pieces 12 have projecting
studs 13 that engage in oblique slots 14 made in plates attached to or forming
parts of the bent piece 5. Thus, when the piece 5 moves up and down, the
magnets are thereby moved horizontally to and fro. The size of the channel 9 is
such as to prevent the blanks from turning in it. It is advantageous to make the
front wall of the channel 9 of a transparent glass-plate 9*. The side walls between
the blank and the poles of the magnets 11, 11 are provided with means for moving
them away when the magnets approach the blank and for bringing them back when
the magnets are moved apart. As shown in Figs. 1 to 3, these side walls consist
of a U-formed sheet 19 which is adapted to turn on a pin 20 and is provided at the
back with a cavity 21 in which enters a stud 22 on the slide 4; the cavity and
the stud being so located and formed as to impart the necessary movement to the
side-walls at the required times. A spring 19 brings the side walls back to their
normal position.
On each side of the bottom 10 of the channel 9 there is a side channel 23 and
vertically over the wall thereof farthest from the chanuel 9 are fixed projections 24
extending above and below the path of the corresponding magnet in order to arrest
the blank that may be adhering to the magnet when the latter is moving backwards.
After being thus arrested the blank becomes free from the magnet and drops into
the side channel 23. As the magnet on one side of the channel 9 comes into
contact only with blanks that are similarly turned, and the other magnet only with
blanks turned in the opposite direction, it follows that only blanks similarly turned
will find their way into each of the side channels 23. The side channels are
connected to a common feeding channel 25 leading to the machine, by channels 26, 26
which are twisted in such a way that all the blanks reach the feeding-channel 25
similarly turned.
To ensure that only one blank at a time shall drop down in the channel 9, the
last tooth (or teeth) of the bar 2 is made a little longer and thus also a little higher
than the others. This tooth (or these teeth) should be made exchangeable in
order to be able to adapt the same apparatus for blanks of different lengths by
inserting specially formed teeth.
In the examples shown, the magnets have a rectilinear movement, but if desired,
they can of course be arranged so that they oscillate about a vertical shaft, in
which case the side-channels also must be so located, that the blanks can drop
into them.
The arrangement shown in Figs. 4, 5, and 6 is similar to that shown in Figs. 1,
2 and 3 except that the upper part is modified so as to cause the blanks to drop
into the channel 9 with their points foremost. For this arrangement there is no
permanent widening vertically over the channel 9 but the last blank is left hanging
with its head on the bars 1, 1 when its point leaves the bar 2, and the top part of
the piece 8 is on this account made lower than in the arrangement shown in
Figs. 1 to 3 in order to allow the point to swing forwards when the bar descends.
To enable the blank to drop when its point has swung forward over the channel 9,
the distance apart of the bars 11 must be increased at the place where the head

page_text: of the blank is supported. For this purpose in the example shown the part 27 of
one of the bars 1 is cut off and the said part is carried by an arm 28 of a bell-
crank lever movable round a fixed point, the other arm 29 of the said lever lying
in the path of a projection 30 attached to the vertically reciprocating bar 2.
The projection 30, which may be elastic, and the arm 29 of the bell-crank
lever are so formed and located that the cut off part 27 is removed, when the
blank is to drop. A spring 31 brings the arm 29 and the part 27 back to their
normal positions.
T
Improvements in Feeding Apparatus for Horse-shoe-nail and like
Machines.
I, IVAR TJERNELD, of Munkfors Bruk, Munkfors, Sweden, Engineer, 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:—
This invention relates to feeding apparatus for horse-shoe-nail and like machines,
and has for object to provide mechanism that will separate from one another blanks
that are turned in diametrically opposite lateral directions, deliver them into
different channels, so that they may afterwards be forwarded to the machine all
turned in the same direction. According thereto I take advantage of the usual
unsymmetrical form of two of the sides of the blank, and employ a magnet (or
magnets) to which or each of which is given a limited movement towards and
from such and unsymmetrical side of the blank, thereby either removing the
blank from the channel in which it is situated or leaving it there according to
which side of the blank is turned towards the pole and consequently to whether
the pole comes in contact with the blank or not." The removed blank is loosened
from the magnet when brought by it over the mouth of a side channel, into which
it drops. In this way all of the blanks that are similarly turned drop into the
same channel and in their further progress those in one of the channels or in both
are turned by some suitable device, for instance, by passing through a somewhat
twisted channel, in such a way that all the blanks shall arrive at the machine
similarly turned.
In the drawings filed with my Provisional Specification,
Figs. 1, 2 and 3 represent an arrangement suitable when the blanks are to
be brought to the machine with their heads foremost, Fig. 1 being a front
elevation thereof, Fig. 2 a section along the line xx of Fig. 1, and Fig. 3 a section
along the line y y of Fig. 2, the magnets being omitted in Fig. 3 for the sake of
clearuess.
Figs. 4, 5 and 6 represent an arrangement suitable when the blanks are to be
brought to the machine with the points foremost; Fig. 4 being a side elevation,
Fig. 5 a section along the line 22 of Fig. 4, and Fig. 6 a plan thereof.
In using either of the arrangements, the blanks are by some suitable means, fed
in a row between two horizontal bars 1, 1 so situated, that the blanks rest with
their heads on the upper edges of, and turn their unsymmetrical sides towards the
said bars. Under and along the bars 1, 1 is a bar 2, which is provided with teeth
on its upper surface, and is so situated, that the blanks rest somewhat forwardly
inclined with their points upon the bar 2. The blanks are moved forward along

page_text: the bars 1, 1 by giving the bar 2 an up and down movement by means of some
suitable mechanism. In the examples shown, the bar 2 is attached to a slide 4
which is adapted to move in guides on a fixed part 3 and carries a bent piece 5
provided with a pin 6 for connecting it to the mechanism for giving the up-and-
down movement to the bar 2. In the arrangement illustrated in Figs. 1, 2, and 3,
the inner sides of the bars 1, 1 are cut away at their forward ends so as to form a
widening through which the head of a blank can just pass when the blank is, by
the last tooth of the bar 2, pushed so far that the said head reaches the said
widening. When the head drops through the widening, the blank turns over the
rounded piece 8 and falls down the upright channel 9 until stopped by the bottom 10
thereof. As it is desirable that the blank should not rebound when it comes
against the bottom of the channel, it is advantageous to make the said bottom
elastic. The movable magnets 11, 11 which may be either permanent magnets as
shown, or electro-magnets, are located on the two sides of the channel 9 and are
attached to pieces 12, 12 which are movable in guides and to which the requisite
movement towards and from the channel 9 must be given by means of some
suitable mechanism. In the examples shown, the pieces 12 have projecting
studs 13 that engage in oblique slots 14 made in plates attached to or forming
parts of the bent piece 5. Thus, when the piece moves up and down, the
magnets are thereby moved horizontally to and fro. The size of the channel 9 is
such us to prevent the blanks from turning in it. It is advantageous to make the
front wall of the channel 9 of a transparent glass-plate 9. The side walls
between the blank and the poles of the magnets 11, 11 are provided with means
for moving them away when the magnets approach the blank and for bringing
them back when the magnets are moved apart. As shown in Figs. 1 to 3, these
side walls consist of a U-formed sheet 19 which is adapted to turn on a pin 20 and
is provided at the back with a cavity 21 in which enters a stud 22 on the slide 4;
the cavity and the stud being so located and formed as to impart the necessary
movement to the side-walls at the required times. A spring 19* brings the side
walls back to their normal position.
On each side of the bottom 10 of the channel 9 there is a side channel 23 and
vertically over the wall thereof farthest from the channel 9 are fixed projections 24
extending above and below the path of the corresponding magnet in order to
arrest the blank that may be adhering to the magnet when the latter is moving
backwards. After being thus arrested the blank becomes free from the magnet
and drops into the side channel 23. As the magnet on one side of the channel 9
comes into contact only with blanks that are similarly turned, and the other
magnet only with blanks turned in the opposite direction, it follows that only
blanks similarly turned will find their way into each of the side channels 23.
The side channels are connected to a common feeding channel 25 leading to the
machine, by channels 26, 26 which are twisted in such a way that all the blanks
reach the feeding-channel 25 similarly turned.
To ensure that only one blank at a time shall drop down in the channel 9, the
last tooth (or teeth) of the bar 2 is made a little longer and thus also a little
higher than the others. This tooth (or these teeth) should be made exchangeable
in order to be able to adapt the same apparatus for blanks of different lengths by
inserting specially formed teeth.
In the examples shown, the magnets have a rectilinear movement, but if desired,
they can of course be arranged so that they oscillate about a vertical shaft, in
which case the side-channels also must be so located, that the blanks can drop into
them.
The arrangement shown in Figs. 4, 5, and 6 is similar to that shown in Figs. 1, 2
and 3 except that the upper part is modified so as to cause the blanks to drop into
the channel 9 with their points foremost. For this arrangement there is no
permanent widening vertically over the channel 9 but the last blank is left
hanging with its head on the bars 1, 1 when its point leaves the bar 2, and the top
part of the piece 8 is on this account made lower than in the arrangement shown

page_text: in Figs. 1 to 3 in order to allow the point to swing forwards when the bar'2'
descends. To enable the blank to drop when its point has swung forward over'
the channel 9, the distance apart of the bars 1, 1 must be increased at the place
where the head of the blank is supported. For this purpose in the example
shown the part 27 of one of the bars 1 is cut off and the said part is carried by
an arm 28 of a bell-crank lever movable round a fixed point, the other arm 29 of
the said lever lying in the path of a projection 30 attached to the vertically
reciprocating bar 2. The projection 30, which may be elastic, and the arm 29 of
the bell-crank lever are so formed and located that the cut off part 27 is removed,
when the blank is to drop. A spring 31 brings the arm 29 and the part 27 back
to their normal positions.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what.
I claim is :-
:-
1. In feeding apparatus for horse shoe nail and like machines, the use of
magnets in the operation of turning the blanks, the said magnets being moved
towards and from each blank which is arranged to pass the magnets with its
unsymmetrical sides facing the magnetic poles, substantially as described.
2. In feeding apparatus for horse-shoe nail and like machines, a device for
separating from one another blanks turned in diametrically opposite directions and
delivering them in different channels, comprising two magnets between which the
blanks are adapted to pass with their unsymmetrical sides towards the magnets,
means for moving the magnets towards and from the space into which the blanks
are fed, stops arranged to loosen from the returning magnets blanks adhering
thereto and a channel arranged under each magnet with its mouth so located that
blanks loosened as aforesaid from the magnet will drop into the said channel,.
substantially as herein described.
3. In apparatus for feeding blanks to horse-shoe nail and like machines, in
which the blanks are moved forwards in a single row with their unsymmetrical
sides turned in diametrically opposite directions and are delivered one by one, an
arrangement for separating from one another the blanks dissimilarly turned and
delivering all the blanks similarly turned, comprising an upright chanuel 9
provided with a bottom 10 and adapted closely to surround with its walls the head
of a blank located therein, an upright side channel 23 on each side of the said
bottom 10 one or more magnets 11 on each side of the central channel 9 with its
or their pole or poles turned towards the channel and arranged over the side
channels 23 23, mechanism for moving the said magnets towards and from a blank
resting on the bottom 10, movable side walls 19, 19, for the central channel 9 between
the said blank and pole or poles of each magnet 11, 11, means for removing the
side walls 19, 19 when the magnets are approaching each other and pushing them
forward again when the magnets are moving apart, fixed projections 27 above
the walls of the side channels 23 farthermost from the central channel 9 for
loosening blank adhering to the corresponding magnets so as to cause them to
drop into the side channels 23, and twisted channels 26 for leading the blanks
from the channels 23 to a common channel 25 and for turning them so that they
shall be all similarly turned when in the chaunel 25, substantially as described.
4. In apparatus which is of the kind specified in Claim 3 and in which the
blanks are fed leaving forwards in a single file with their heads resting on the
upper edges of two opposite bars 1, 1 and with their points resting upon a
vertically reciprocating bar 2 provided with teeth on its upper surface and located
under and along the bars 1, 1, making the last tooth or teeth of the bar 2 longer
and higher than the others, substantially as and for the purpose herein set forth.
5. My improved arrangements in feeding-apparatus for horse-shoe nail and like
machines, for separating from one another dissimilarly turned blauks and delivering
them similarly turned, constructed, combined, and operating substantially as

page_text: herein before described with reference respectively to and shown in Figs. 1, 2, and 3.
and in Figs. 4, 5, and 6 of the accompanying drawings.
Dated this 26th day of June 1896.
For the Applicant,
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.