IMPROVEMENTS IN MANUFACTURING HORSE SHOE NAILS AND IN THE MECHANISM THEREFOR
Year: 1885

page_text: .
This Specification was, upon the 17th day of September 1886, amended under.
Sections 18 to 21 of the Patents, Designs, and Trade Marks Act, 1883.
Mechanism therefor.
I, RUDOLF OSCAR GRISCHOTTI of 75 St. George's Place, Glasgow, in the County
of Lanark, North Britain, Merchant do hereby declare the nature of the said
invention for IMPROVEMENTS IN MANUFACTURING HORSE SHOE NAILS AND IN
THE MECHANISM THEREFOR to be as follows:-
This Invention, which relates to improvements in manufacturing Horse Shoe
Nails and in the mechanism therefor, relates to that class of such manufacture
wherein the nail blanks are cut or punched out transversely from ribbed bar iron,
the said blanks being.subsequently rolled to the necessary taper and finally pointed
by punching in order to produce finished nails.
In practising this Invention, the iron or steel used for the manufacture of such
nails is rolled with a thickened rib along each edge of flat bars, the ribs forming
the heads of the nails. Such bars of iron or steel are fed forwards step by step by
a self-acting forwards and backwards-moving pendulum feeding apparatus beneath
two punches of a pressing machine. These punches are arranged transversely to
the length of the bars and at each descent thereof the punches transversely cut off
two blanks from the bar the length of which corresponds to the width of the bars;
the thickness of the heads to the thickness of the ribbed edges and the thickness of
the shanks to the thickness of the central part of the said bars of iron or steel:
The nail blanks produced as hereinbefore described are fed into a rolling mill
provided with a pointing apparatus wherein the said blanks are rolled and tapered
to correspond to the pattern of nail to be produced, after which these tapered blanks
are transferred to the pointing apparatus wherein the nails are pointed by punching
therefrom fins and protuberances so that the nails leave the pointing apparatus in
a finished state.

page_text: Improvements in Manufacturing Horse-shoe Nails and in the
Mechanism therefor.
TAX
I, RUDOLF OSCAR GRISCHOTTI, of 75 St. Georges Place, Glasgow, in the County
of. Lanark, North Britain, Merchant do hereby declare, the nature of my said
invention for IMPROVEMENTS IN MANUFACTURING HORSE-SHOE NAILS AND IN THE
MECHANISM THEREFOR and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :—
My Invention, which relates to improvements in manufacturing Horse-shoe nails
and in the mechanism therefor, relates to that class of such manufacture wherein
the nail blanks are cut or punched out transversely from ribbed bar iron, the said
blanks being subsequently rolled to the necessary taper and finally pointed by
punshing in order to produce finished nails.
In practising this Invention, the iron or steel used for the manufacture of such
nails is rolled with a thickened rib along each edge of flat bars, the ribs forming the
heads of the nails.-Such bars of iron or steel are fed forwards step by step by a
self-acting forwards and backwards-moving pendulum feeding apparatus beneath
two punches of a pressing machine. These punches are arranged transversely to
the length of the bars and at each descent thereof the punches transversely cut off
two blanks from the bar the length of which blanks correspond to the width of the
bars the thickness of the heads to the thickness of the ribbed edges and the
thickness of the shanks to the thickness of the central part of the said bars of iron
or steel.
The nail blanks produced as herein before described are fed into a rolling mill
provided with a pointing apparatus wherein the said blanks are rolled and tapered
to correspond to the pattern of nail to be produced, after which these tapered blanks
are transferred to the pointing apparatus wherein the nails are pointed by-punching
therefrom fins and protuberances so that the nails leave the pointing apparatus in
a finished state.
In order that my said Invention may be properly understood and readily carried
into effect, I will now proceed to describe the drawings hereunto annexed.
Figures 1 and 2 are respectively a front and a side elevation of a machine by
which the nail blanks are formed the latter Figure being represented with certain
parts removed.
Figures 3, 4 and 5 are views of detached portions of the same and all hereinafter
more particularly described.
Figures 6 and 7 are respectively a front and a side elevation of a machine in
which the nail blanks are rolled, pointed and otherwise perfected.
Figures 8 to 12 (inclusive) are views of detached portions of the same and
Figures 13 and 14 are views of modified portions of the same and are all hereinafter
more particularly described.
In the machine by which the nail blanks are formed, the punches a, are mounted
in the block b, which is raised and pressed down by means of the eccentric c,
mounted on the shaft d. This shaft d, is driven by the band pulley e, or by other
equivalent means and has secured upon it the cam f, for moving forwards to the
FF

page_text: Thi
contact with the anti-friction roller ½, of the lever i, which said lever is pivot
y, of which the nail blanks are formed. The cam f, rotates
at j, to the fixed bracket k. The lever i, as shewn more particularly in sic
elevation at Figure 5, is bifurcated at its two ends, between the arms at the uppe
5 end of which the anti-friction roller h, is pivoted and the arms at the lower en
thereof bridge or span over the bar g.
punches a, is alternately grasped and released by and between the jaws l, and m
The bar g, when being fed forwards to th
the lower jaw 1, of which is pivoted to the arm n, of the pendulum bar o.
pendulum bar o, which is represented more particularly in horizontal and vertica
10 section respectively at Figures 3 and 4, is pivoted at p, at its lower end to the
framing and sole plate of the machine and is capable of being moved about this
axis. At its upper part the said pendulum bar has the jaw m, rigidly secured to it
as shewn more particularly at Figure 4, and the said pendulum bar is further
provided with the springs p, and q, the former for pressing up the pivoted jaw l
15 and the latter for drawing the said bar o, back into its normal position after having
been deflected from such position by the lever i, that is to say, it is drawn in a
direction from right to left as at Figure 1 of the annexed drawings. The distance
through which the pendulum bar o, is caused to vibrate is determined by the
position to which the set screws r, have been previously adjusted.-The pivoted
20 jaw l, is constructed with the bridge s, through which the nail bar g, passes freely,
and over this bridge the pin or rod t, is pivoted to the arm u, in such position that
upon each depression of the sliding block b, to which the arm u is secured, the said
pin presses down the jaw l, and releases it from the bar g, while the pendulum
bar o, thus disengaged is drawn as hereinbefore mentioned by the spring q, back to
its normal position.
The nail blanks as formed by the hereinbefore described mechanism are then
fed into the rolling and pointing apparatus wherein they are finished and made
ready for use.
80
This apparatus, as shewn on sheets 2 and 3 of the annexed drawings, consists of
the driving shaft a', upon which is secured the band pulley b¹, or its equivalent, the
said pulley being formed with the radial slot c', in which the position of the pin d¹,
may be adjusted as required.-To this pin d', the lower end of the connecting
rod e¹, is connected, the upper end thereof being connected to the crank pin f¹,
that for each revolution of the driving pulley b¹, the segmental toothed rack g¹,
which is formed on the crank h', receives a reciprocal vibrating motion which
is a part of a revolution about its axis. The shafts ¹, and it, and the shafts
k, and, are respectively geared together by toothed pinions on their rear ends,
and to their front ends are secured the segmental rolls m', nl, o¹, and p¹, one
of which is represented in side elevation as detached from the machine at Figure 11,
and it is here explained that one of each of the two pairs m³, n¹, and o¹, p¹, is
ormed with a smooth rolling surface, while the other is formed with a recess
orresponding to the particular form the nail blank is to assume when rolled
herein.
The toothed pinions of the shafts 2¹, and k¹, are geared with the segmental
ck gl, the reciprocal motion of which is thus communicated to the rolls m³, n¹, o¹,
nd pl, the gearing being so arranged that the said rolls make about half a revolu-
on in both directions for each revolution of the main driving shaft a¹; but, as
reinbefore described, the pin d, being made adjustable, the amount of revolution
the said rolls may be regulated so as to suit the length of nails to be manu-
ctured. Upon the driving shaft a¹, there is fixed the barrel cam q¹ (Figures 7
d 10) which, engaging with the bowl r¹, of the lever 81, imparts to it a
iprocating or vibrating motion, the said lever, as shewn more particu-
ly in plan at Figure 10, being pivoted at t¹, to the frame A of the
chine. The opposite end of the lever s¹, is pivoted to one end of the connecting
t', (Figures 8 and 10) the opposite end of which is pivoted to the lower end
the grasping lever u¹³, and thus the reciprocating motion, is imparted to the
grasping lever,-This lever u², which, as shewn at Figure 8, is pivoted at vª

page_text: to the segmental plate wl, and can only reciprocate a short distance between the
stops ¹, the amount of motion not taken up directly by the grasping lever u²,
being communicated to the plate w¹. This plate w¹, is pivoted at x¹, and is caused
to oscillate between the adjustable stops a', which are supported by the framing of
the, machine.. As represented in front elevation at. Figure 9, the channel b', down
through which the nails are conducted to the rolls m', n', o¹, and p¹, is provided
with the door c³, which is capable of sliding upon the screws d', by which it is
supported, the said door being opened against the pressure of the spring e, by the
cam or tappet f³, secured to the shaft 1.
At Figure 8, the nail holder is represented in the most forward position, that is
to say, with the rolled nail g³, held in front of the die h³, ready to be pointed by
punching, while another nail blank is represented in the nail channel b², after
having. descended by its own gravity from the rolls above, and when resting upon
the smooth edge of the plate w¹.
After the nail blank represented at g³, has, in the manner hereinafter explained,
been punched through the die h, and the punch 2, (Figures 6 and 7) withdrawn,
the lower end of the grasping lever u³, is drawn upon by reason of its connection
with the cam g', and the jaw is opened until such time as the said lever u¹, abuts
against the stop ¹, when the plate w¹, is carried backward and the jaws being
open, the nail blank then in the lower part of the channel 62, falls down and is
grasped by the lever' u¹, when the operation is repeated in the manner hereinbefore
described.
For some descriptions of nails, I prefer to punch them through the die h², in a
vertical condition. For this purpose I employ the apparatus which is represented
at Figure 13 of the annexed drawings wherein the grasping lever u¹, is operated in
a manner similar to that herein before described and the bar k, to which it is
pivoted, slides horizontally between the two adjustable stops a³.
At the front of the machine the main shaft a', projects through the two
circumferentially slotted arms l', of the punching pendulum m³, between which
arms the cams n², which are secured to the shaft a', are capable of rotating with
their peripheries in contact with the anti-friction rollers o. By the cams n³, the
punching pendulum m³, is operated and the nails punched through the die h³,
whence they fall on to the inclined plate p³, and fall into any suitable receptacle
placed to receive them. The punch ³, is carried at the upper end of the punching
pendulum m³, and the said pendulum m³, is pivoted at, to the framing of the
machine.
The nail blanks on being charged into the nail channel 6³, are drawn downwards.
through the upper pair of rolls m³, and n¹, by which they are operated upon and
the nail heads being guided by the guiding steel s², (Figures 6 and 12) the said
nails descend by their own gravity on to the projection t2, of the bar u³, Figure 8.
This bar us, is operated longitudinally by the barrel cam v, and when drawn back
allows one of the nails. to descend to the second or lower pair of rolls o¹, and p¹, by
which it is further operated upon. The nail then rests upon the edge of ithe
segmental plate w¹, until such time as its head is grasped by the lever u', when,
the door having been opened. by the cam or tappet f, the said nail is carried
forward in the manner hereinbefore described and "trimmed" and pointed by. being
punched through the die h².
.
At a certain interval before the nail blank has descended on to the projection t³,
the bar u, upon which it is formed is caused by the cam v, to make a quick
forward stroke so that its end passes out through the front of the nail chamber b³,
and thereby effects the ejection therefrom of any nail blank which has not been
grasped by the lever u¹, and thus prevents the nail blanks from becoming clogged
in their downward passage through the said channel 62. Should however, any two
nail blanks accumulate in the said channel 2, the pivoted door w³, (Figure 6)
which is arranged at one side thereof, is pressed open, and thereby a means of
escape is presented to any nail blanks subsequently descending until such time as
the machine is stopped..
31

page_text: It is to be understood that by arranging a special feeding device to each of the
two pairs m³, n' and o', p¹, of rolls each of the said pairs of rolls are capable of
being operated independently of the other and each of such pair of rolls may in
itself bo regarded as a rolling mill.
In place of employing the door c2, which is operated by the cam or tappet.ƒ³,
there may be substituted a door or doors which are operated automatically.
Figure 14 represents in horizontal section a nail channel 62, fitted with doors of
such a construction. These doors y2, of which there are preferably two are pivoted
to the walls of the said channel 62, and are each provided with a spring ²...When
the nail blanks are being moved over towards the die 2, the doors y³, are pushed
open. by the said nail against the pressure of the springs z², by which they are
closed immediately upon the nail being clear of the same.
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 I am
aware of the Patent of Peter Jensen dated April 17h 1885 No 4760 (a communi-
cation from Per Johan Berglund of Lagerfors, Moholm, Sweden) and I do not
claim any parts or combination of parts therein described and claimed, but what
I claim is
First. The arrangement-and-combination of parts constituting the machine for
stamping-or-cutting-out--the--blanks--from--which--horse shoe--nails--are formed
substantially as hereinbefore described and shewn-upon-the-annexed-sheets-of
drawing.
First. The arrangement and combination of parts constituting the machine
for stamping or cutting out the blanks from which horse-shoe nails are formed
substantially as hereinbefore described and shewn at Figures 1 to 5 (inclusive)
of the annexed drawings.
Second. The arrangement and combination of parts constituting the machine
for rolling and pointing the horse shoe nails substantially as hereinbefore described
and shewn upon the annexed sheets of drawing.
Third. The combination of the two machines claimed under the two preceding
claiming clauses and working in conjunction substantially as hereinbefore described
with reference to the annexed sheets of drawing.
4
T
1000

page_text: Mechanism therefor.
I, RUDOLF OSCAR GRISCHOTTI of 75 St. George's Place, Glasgow, in the County
of Lanark, North Britain, Merchant do bereby declare the nature of the said
invention for IMPROVEMENTS IN MANUFACTURING HORSE SHOE NAILS AND IN
THE MECHANISM THEREFOR to be as follows:-
This Invention, which relates to improvements in manufacturing Horse Shoe
Nails and in the mechanism therefor, relates to that class of such manufacture
wherein the nail blanks are cut or punched out transversely from ribbed bar iron,
the said blanks being subsequently rolled to the necessary taper and finally pointed
by punching in order to produce finished nails.
In practising this Invention, the iron or steel used for the manufacture of such
nails is rolled with a thickened rib along each edge of flat bars, the ribs forming
the heads of the nails: Such bars of iron or steel are fed forwards step by step by
a self-acting forwards and backwards-moving pendulum feeding apparatus beneath
two punches of a pressing machine. These punches are arranged transversely to
the length of the bars and at each descent thereof the punches transversely cut off
two blanks from the bar the length of which corresponds to the width of the bars;
the thickness of the heads to the thickness of the ribbed edges and the thickness of
the shanks to the thickness of the central part of the said bars of iron or steel.
The nail blanks produced as herein before described are fed into a rolling mill
provided with a pointing apparatus wherein the said blanks are rolled.and tapered
to correspond to the pattern of nail to be produced, after which these tapered blanks
are transferred to the pointing apparatus wherein the nails are pointed by punching
therefrom fins and protuberances so that the nails leave the pointing apparatus in
a tinished state.

page_text: Improvements in Manufacturing Horse-shoe Nails and in the
Mechanism therefor.
I, RUDOLF OSCAR GRISCHOTTI, of.75 St. Georges Place, Glasgow, in the County.
of Lanark, North Britain; Merchant do hereby declare the nature of my said
invention for IMPROVEMENTS IN MANUFACTURING HORSE-SHOE NAILS AND IN THE
MECHANISM THEREFOR and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
My Invention, which relates to improvements in manufacturing Horse-shoe nails
and in the mechanism therefor, relates to that class of such manufacture wherein
the nail blanks are cut or punched out transversely from ribbed bar iron, the said
blanks being subsequently rolled to the necessary taper and finally pointed by
punshing in order to produce finished nails.
In practising this Invention, the iron or steel used for the manufacture of such
nails is rolled with a thickened rib along each edge of flat bars, the ribs forming the
heads of the nails.-Such bars of iron or steel are fed forwards step by step by a
self-acting forwards and backwards-moving pendulum feeding apparatus beneath
two punches of a pressing machine. These punches are arranged transversely to
the length of the bars and at each descent thereof the punches transversely cut off
two blanks from the bar the length of which blanks correspond to the width of the
bars the thickness of the heads to the thickness of the ribbed edges and the
thickness of the shanks to the thickness of the central part of the said bars of iron
or steel.
The nail blanks produced as hereinbefore described are fed into a rolling mill
provided with a pointing apparatus wherein the said blanks are rolled and tapered
to correspond to the pattern of nail to be produced, after which these tapered blanks
are transferred to the pointing apparatus wherein the nails are pointed by punching
therefrom fins and protuberances so that the nails leave the pointing apparatus in
a finished state.
In order that my said Invention may be properly understood and readily carried
into effect; I will now proceed to describe the drawings hereunto annexed.
Figures 1 and 2 are respectively a front and a side elevation of a machine by
which the nail blanks are formed the latter Figure being represented with certain
parts removed.
Figures 3, 4 and 5 are views of detached portions of the same and all hereinafte
more particularly described.
Figures 6 and 7 are respectively a front and a side elevation of a machine i
which the nail blanks are rolled, pointed and otherwise perfected.
Figures 8 to 12 (inclusive) are views of detached portions of the same an
Figures 13 and 14 are views of modified portions of the same and are all hereinafte
'more particularly described.
In the machine by which the nail blanks are formed, the punches a, are mounte
in the block b, which is raised and pressed down by means of the eccentric
mounted on the shaft d. This shaft d, is driven by the band pulley e, or by oth
equivalent means and has secured upon it the cam f, for moving forwards to t

page_text: This
punches a, the bar g, of which the nail blanks are formed. The cam f, rotates in
contact with the anti-friction roller , of the lever i, which said lever is pivoted
at j, to the fixed bracket k.. The lever i, as shewn more particularly in side
elevation at Figure 5, is bifurcated at its two ends, between the arms at the upper
end of which the anti-friction roller h, is pivoted and the arms at the lower end
thereof bridge or span over the bar g. The bar g, when being fed forwards to the
punches a, is alternately grasped and released by and between the jaws l, and m,
the lower jaw 1, of which is pivoted to the arm n, of the pendulum bar o.
pendulum bar o, which is represented more particularly in horizontal and vertical
section respectively at Figures and 4, is pivoted at p, at its lower end to the
framing and sole plate of the machine and is capable of being moved about this
axis. At its upper part the said pendulum bar has the jaw m, rigidly secured to it
as shewn more particularly at Figure 4, and the said pendulum bar is further
provided with the springs p, and q, the former for pressing up the pivoted jaw 1,
and the latter for drawing the said bar o, back into its normal position after having
been deflected from such position by the lever i, that is to say, it is drawn in a
direction from right to left as at Figure 1 of the annexed drawings. The distanco
through which the pendulum bar o, is caused to vibrate is determined by the
position to which the set screws 7, have been previously adjusted.―The pivoted
jaw l, is constructed with the bridge 8, through which the nail bar g, passes freely,
and over this bridge the pin or rod t, is pivoted to the arm u, in such position that
upon each depression of the sliding block b, to which the arm u is secured, the said
pin presses down the jaw l, and releases it from the bar g, while the pendulum
thus disengaged is drawn as herein before mentioned by the spring q, back to
its normal position.
bar o,
The nail blanks as formed by the hereinbefore described mechanism are then
fed into the rolling and pointing apparatus wherein they are finished and made
ready for use.
This apparatus, as shewn on sheets 2 and 3 of the annexed drawings, consists of
the driving shaft a¹, upon which is secured the band pulley b¹, or its equivalent, the
said pulley being formed with the radial slot c¹, in which the position of the pin d¹,
may be adjusted as required.-To this pin d, the lower end of the connecting
rod el, is connected, the upper end thereof being connected to the crank pin f¹, so
that for each revolution of the driving pulley b¹, the segmental toothed rack g¹,
which is formed on the crank h¹, receives a reciprocal vibrating motion which
is a part of revolution about its axis. The shafts ¹, and j¹, and the shafts
k, and, are respectively geared together by toothed pinions on their rear ends,
and to their front ends are secured the segmental rolls m¹, n¹, o¹, and p¹, one
of which is represented in side elevation as detached from the machine at Figure 11,
and it is here explained that one of each of the two pairs m', n', and o¹, p¹, is
formed with a smooth rolling surface, while the other is formed with a recess
corresponding to the particular form the nail blank is to assume when rolled
therein.
The toothed pinions of the shafts i¹, and k', are geared with the segmental
rack gl, the reciprocal motion of which is thus communicated to the rolls m³, n', o¹,
and p', the gearing being so arranged that the said rolls make about half a revolu-
tion in both directions for each revolution of the main driving shaft a¹; but, as
hereinbefore described, the pin d¹, being made adjustable, the amount of revolution
of the said rolls may be regulated so as to suit the length of nails to be manu-
factured. Upon the driving shaft a¹, there is fixed the barrel cam q¹ (Figures 7
and 10) which, engaging with the bowl r¹, of the lever s³, imparts to it a
reciprocating or vibrating motion, the said lever, as shewn more particu-
larly in plan at Figure 10, being pivoted at t¹, to the frame A of the
inachine. The opposite end of the lever a', is pivoted to one end of the connecting
link t', (Figures 8 and 10) the opposite end of which is pivoted to the lower end
of the grasping lever u¹, and thus the reciprocating motion is imparted to the
said grasping lever. This lever u³, which, as shewn at Figure 8, is pivoted at v¹;

page_text: to the segmental plate, and can only reciprocate a short distance between the
stops, the amount of motion not taken up directly by the grasping lever u¹,
being communicated to the plate w¹. This plate w¹, is pivoted at ¹, and is caused
to oscillate between the adjustable stops a³, which are supported by the framing of
the machine. As represented in front elevation at Figure 9, the channel 62, down
through which the nails are conducted to the rolla m¹, n¹, o¹, and p¹, is provided
with the door c², which is capable of sliding upon the screws d', by which it is
supported, the said door being opened against the pressure of the spring e, by the
cam or tappet f³, secured to the shaft 1.
At Figure 8, the nail holder is represented in the most forward position, that is
to say, with the rolled nail g³, held in front of the die h³, ready to be pointed by
punching, while another nail blank is represented in the nail channel b², after
having descended by its own gravity from the rolls above, and when resting upon
the smooth edge of the plate w¹.
After the nail blank represented at 9%, has, in the manner hereinafter explained,
been punched through the die h², and the punch 2, (Figures 6 and 7) withdrawn,
the lower end of the grasping lever u¹, is drawn upon by reason of its connection
with the cam q¹, and the jaw is opened until such time as the said lever u³, abuts
against the stop x', when the plate w¹, is carried backward and the jaws being
open, the nail blank then in the lower part of the channel 63, falls down and is
grasped by the lever u¹, when the operation is repeated in the manner hereinbefore
described.
For some descriptions of nails, I prefer to punch them through the die h³, in a
vertical condition. For this purpose I employ the apparatus which is represented
at Figure 13 of the annexed drawings wherein the grasping lever u', is operated in
a manner similar to that herein before described and the bar k³, to which it is
pivoted, slides horizontally between the two adjustable stops a³.
At the front of the machine the main shaft a¹, projects through the two
circumferentially slotted arms 1, of the punching pendulum m2, between which
arms the cams n², which are secured to the shaft a¹, are capable of rotating with
their peripheries in contact with the anti-friction rollers o*. By the cams n², the
punching pendulum m², is operated and the nails punched through the die h³,
whence they fall on to the inclined plate p², and fall into any suitable receptacle
placed to receive them. The punch, is carried at the upper end of the punching
pendulum m³, and the said pendulum m², is pivoted at, to the framing of the
machine.
The nail blanks on being charged into the nail channel b', are drawn downwards
through the upper pair of rolls ml, and n¹, by which they are operated upon and
the nail heads being guided by the guiding steel s², (Figures 6 and 12) the said
nails descend by their own gravity on to the projection t, of the bar u³, Figure 8.
This bar u², is operated longitudinally by the barrel cam v², and when drawn back
allows one of the nails to descend to the second or lower pair of rolls o¹, and p¹, by
which it is further operated upon. The nail then rests upon the edge of the
segmental plate w¹, until such time as its head is grasped by the lever u¹, when,
the door c³, having been opened by the cam or tappet f, the said nail is carried
forward in the manner hereinbefore described and "trimmed" and pointed by being
punched through the die h³.
At a certain interval before the nail blank has descended on to the projection t*,
the bar u, upon which it is formed is caused by the cam v², to make a quick
forward stroke so that its end passes out through the front of the nail chamber b³,
and thereby effects the ejection therefrom of any nail blank which has not been
grasped by the lever u¹, and thus prevents the nail blanks from becoming clogged
in their downward passage through the said channel 6. Should however, any two
nail blanks accumulate in the said channel 2, the pivoted door w³, (Figure 6)
which is arranged at one side thereof, is pressed open and thereby a means of escape
is presented to any nail blanks subsequently descending until such time as the
machine is stopped.

page_text: It is to be understood that by arranging a special feeding device to each of the
two pairs m, n¹ and o¹, p¹, of rolls each of the said pairs of rolls are capable of
being operated independently of the other and each of such pair of rolls may in
itself be regarded as a rolling mill.
In place of employing the door c³, which is operated by the cam or tappet ƒ³,
there may be substituted a door or doors which are operated automatically.
Figure 14 represents in horizontal section a nail channel 6, fitted with doors of
such a construction. These doors y³, of which there are preferably two are pivoted
to the walls of the said channel 62, and are each provided with a spring z¹. When
the nail blanks are being moved over towards the die h³, the doors y, are pushed
open by the said nail against the pressure of the springs 22, by which they are
closed immediately upon the nail being clear of the same.
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
First. The arrangement and combination of parts constituting the machine for
stamping or cutting out the blanks from which horse-shoe nails are formed
substantially as hereinbefore described and shewn upon the annexed sheets of
drawing.
Second. The arrangement and combination of parts constituting the machine
for rolling and pointing the horse shoe nails substantially as hereinbefore described
and shewn upon the annexed sheets of drawing.
Third. The combination of the two machines claimed under the two preceding
claiming clauses and working in conjunction substantially as hereinbefore described
with reference to the annexed sheets of drawing.
Datal thin and of T100
J. H. JOHNSON, DAY & JOHNSON,
Applicant's Agents.