Improvements in the Manufacture of Metallic Nails or Fastenings for Leather or like Work and in Machinery or Apparatus for Producing and Inserting the same.
Year: 1891

page_text: Date of Application, 3rd Mar., 1891-Accepted, 4th Apr., 1891
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Metallic Nails or Fastenings
for Leather or like Work and in Machinery or Apparatus for
Producing and Inserting the same.
1. STILLMAN WILLIAMS ROBINSON, of Columbus, in the State of Ohio, one of
the United States of America, Teacher, 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 has for its object the production of a novel machine for inserting
metallic nails or fastenings into leather work, the said machine making from a wire
a novel nail or fastening.
In accordance with my invention as herein contained, a wire, preferably
somewhat flattened or smooth at its sides and corrugated at one or both edges, is
engaged by a wire feeding device adapted to grip the wire and feed it into a
cutting box, where it is held by a clamping device or lower gripper while a cutter
is moved forward to notch the leading end of the wire and form a suitable point
for the nail next to be cut therefrom, the said wire near its point end being
preferably somewhat bent, so that the extremity of the point formed by an oblique
cut of a pointing tool may be placed in the line of the axis of the nail or fastening
to prevent off-shooting of the whole point of the nail, and to ensure proper
clinching, as will be described.
While the wire is held clamped in the cutting-box and a point is being formed
on its end, as described, for the next nail or fastening, the wire feeding device is
moved backwardly along the wire, and the latter having been pointed, the
clamping-device in the cutting box is moved to release the wire in order that the
wire-feeding device may again engage the wire and pass the pointed end thereof
into a vertical passage in a nail-carrier for a greater or less distance according to
the length of nail desired or the thickness of the stock on the horn, the said nail-
carrier being as thick vertically as the longest nail.
The pointed end of the wire having been inserted into the nail-carrier, the latter
is swung about a vertical axis and in its movement the wire is cut off between the
lower end of the cutting box and the said nail-carrier, the latter placing the mail or
fastener carried by it in proper position over a hole in a nose-plate and under a
driver actuated either in one direction positively by a crank and pitman and in
the other direction by a spring, or in both directions by the crank and pitman,
I having illustrated both plans.
The driver in its descent strikes the nail and drives it from the nose or foot into
a hole in the leather, said hole having been made previously by an awl, the latter
having descended and perforated the leather on the horn while the nail-carrier was
in position under the cutting-box.
In nailing machines using metallic nails or fastenings, it is customary to provide
for a certain length of clinch at the point, irrespective of the length of the nail or
fastening.
In my experiments I have found that the longer the nail the greater the amount
of upset and consequently the less the clinch, so when feeding the wire for the
longer nails required for any increase in the thickness of the leather, provision has
been made for the upsetting, so that the extent of the clinch will remain the same,
otherwise the clinch would be reduced.
To provide for this increase of upset and leave the clinch uniform, means have
been devised whereby the wire feeding mechanism has given to it an increased
movement or feed as the length of the nail is to be increased, the increase of
movement being such as to supply sufficient wire to counterbalance the increased.
loss of length due to upsetting.

page_text: こ
This increase of movement is provided for by an eccentric which is interposed
between the lever carrying the wire feeding device, and the link for actuating said
device, so that change of position of the said lever for feeding the wire for long
nails, causes the said eccentric, by its change of position, to give a slightly greater
movement to the lever for actuating the feeding-device than is required simply to
provide for the increase in thickness of stock.
The machine has a rising and falling head, and a nose plate at the lower end to
rest on the leather or stock on the usual horn.
I have combined with the said nose plate, a feed bar and foot-lift, to be
described, actuated by devices so constructed that it will always be lifted a definite
distance above the material or stock on the horn, regardless of the thickness of
the stock.
The awl and driver are made to descend in the same hole in the nose-plate.
The nail-pointing mechanism employed is also of novel and peculiar construction,
it as shown containing a pointing tool adapted to cut a V-shaped notch from one
to the other side in the leading end of the wire, the direction of movement of the
said pointing tool being oblique to the axis of the wire, the pointing tool leaving
the end of the wire with a bifurcated or double pronged point, the extremities of
which lie substantially in line with one side of the wire; but to place the
extremities of the prongs in the line of the axis of the wire, a bender moving in
unison with the pointing tool acts upon the wire just after it is pointed to bend the
wire slightly just above the said point.
After this the wire is fed into a nail-carrier for a distance equal to the length
required for the nail next to be driven, which length varies according to the
thickness of the stock, and the nail-carrier is then moved aside to cut off the .wire
and place the nail in driving position.
This invention may therefore be said to consist in a nailing machine provided
with a cutting-box having a notch opposite the end of the wire, and containing an
inclined pointing tool to enter said notch, and a carrier to actuate the pointing
tool, whereby the said tool cuts into the wire and forms a notch which is slanted
with relation to the axis of the wire, the notched end of the wire forming a two-
pronged point for the nail.
Fig. 1 shows a front elevation of part of a nailing machine embodying this
invention.
Fig. 2, a view of the machine shown in Fig. 1, looking from the left.
Figs. 24 and 2 show portions of the mechanism for placing the awl and driver
bar alternately in position to enter the nose or foot.
Fig. 3, a view similar to Fig. 2, parts at the front in said fig. being removed to
more clearly show parts behind them.
Figs. 4, 5, and 6 are details referring to the wire feeding device or upper
gripper.
Fig. 7, a partial elevation looking from the right in Fig. 1, the driving pulley
and parts supporting it being removed.
Fig. 8, a detail of the eccentric co-operating with the feeding mechanism to
provide extra length of nail for upsetting.
Fig. 9, a detail to show the cutting-box, the nose plate, part of the foot-lift,
and shoe feeding mechanism.
Fig. 10, a detail taken from the rear of the machine to show parts of the
foot-lift and shoe feeding mechanism.
Fig. 11, an enlarged detail of the pointing-tool, the bender, the cutting-box, and
the nail-carrier.
Fig. 12, a section in the line a³.
Fig. 13, a section in the line..
Fig. 14, a detail of the cutting-box.
Fig. 15, a detail of the nail-carrier.
Fig. 16 shows the bar g2 detached.
Fig. 17, a detail of the clamping device or lower gripper.

page_text: Fig. 21 shows the main slide detached, and
Figs. 22 and 23 show a modification to be described, wherein the spring for
throwing the driver bar down is omitted.
Referring to the drawings, A. represents a column forming part of the main
standard or frame-work of the machine, it having suitable bearings to support the
working parts.
I have considered it unnecessary to show the lower part of the standard, and I
have represented the horn A only in Fig. 2, because the standard and horn are
substantially the same as in the Specification of Patent No. 6941 granted to
R. H. Brandon dated 29th April 1884.
The main shaft A of the machine has loose upon it a suitable fly-wheel A³,
to which is connected a belt-pulley A, and alongside of the latter is a loose
pulley A.
In practice the fly-wheel will have interposed between it and the main shaft some
suitable clutch mechanism under the control of the operator by which to stop and
start the rotation of the main shaft from the continuously rotating fly-wheel, but as
the said clutch mechanism is not to be claimed herein and is of common construction,
is not shown and specifically described, for any usual and suitable clutch mechanism
may be employed.
The main shaft A2 has suitably fixed to it a noncircular gear A which, except in
Figs. 22 and 23, engages a similarly-shaped non-circular gear A mounted loosely
on the crank-shaft A, which rotates, see Fig. 20, in a yoke a mounted loosely upon
and adapted to move for a slight distance about the main-shaft as a centre or
pivot.
The shaft A has at its front end a crank A10, see Figs. 1, 2, and 3 having a
suitable pin which receives upon it a link A which is jointed to the upper end of
the driver bar A13, the said driver-bar, provided at its lower end with a driver A.",
being extended through a guide A pivoted at A. and having attached to it at its
rear side a cam-plate A provided with a cam-slot A which receives a pin A19
projecting from the inner side of the awl-carrying bar B, the said pin being passed
through a cam-slot B in a cam-plate B² fixed by suitable bolts B₁ to a projection B',
shown best in Fig. 3, forming part of what I denominate as the main slide or
head B, it being a casting of irregular shape, as best shown in Fig. 12, the upper
end of the main slide being bored to receive through it part of the hub A* before
described, through which is extended the shaft A³
The main slide 13 is slotted near its lower end for the reception of a block B',
Fig. 3, mounted loosely upon a stud 138 fastened in the standard by a suitable nut,
see Fig. 7.
This main slide B has an angle-shaped head-block 29 attached to it at its lower
end by a bolt 31.
The nose-plate D' is secured by bolts 30 to the lower edge of the angle-shaped
block 29.
This angle-plate has secured in it by a screw 32 the cutting-box G, it having a
vertical wire passage for the wire nail, the said angle-plate having an inclined or
oblique throat 33 for the reception of the pointing tool G herein shown as
adjustably secured by bolts 34 and 35 in a pointing-tool carrier pivoted at 37 to
the lever 36.
The nose-plate D¹ has pivoted upon it at F the nail-carrier F¹, it having a nail-
hole at 18, the nose-plate having a hole at 19.
The nail-carrier is vibrated at times about its pivot F by means of a cam-slide F
having two cam surfaces 20, 21, the cam surface 20 acting against the cam
surface 22 of the nail-carrier, while the cam surface 21 acts against the surface 23
of the nail-carrier, the object being to swing the said nail-carrier from a position

page_text: with its hole 18 in line with the passage 24 of the cutting-box G into position over
the hole 19 in the nose-plate.
The slide-bar F2 receives its reciprocating movement from a block 25, see
Fig. 2, on a pin extended from the lever 36, the said block entering a notch 27, see
Fig. 15, in the outer end of the cam-slide F, the parallel or straight side of the
cam-slide next to the nail-carrier acting upon the latter to lock the same in its two
extreme positions at the proper time.
The cam-slide has an opening 28 cut down through it to lead away the small
pieces or chips cut out while pointing the wire, as will be described.
Referring again to the shaft As, it has fast upon it at its right hand end, see
Figs. 1 and 7, a dog B, said dog being acted upon by a pin a² connected to and
travelling with the gear A'.
The said pin a during the rotation of the gear A will, by acting upon the
dog B, rotate the shaft A until the pin a³ on the crank A10 passes its upper dead
centre, at which time or soon after, the end 2 of the driver-bar actuating spring B
acts upon the roller or other stud 3 attached to the driver-bar and quickly throws
the said driver-bar down to drive a nail, the dog B at such time travelling away
from the pin a² because at such time the shaft Bs derives its rotation from the said
driver-bar actuating-spring rather than from the non-circular gear A
This loose connection of the non-circular gear with the driver-bar lifting shaft as
described, enables the said shaft to be rotated at one speed to lift the bar, and at
another speed during the driving operation.
By making these gears A, A non-circular as described, it is possible to pick up
the driver promptly after the same has been thrown down by its spring, and it is
also possible to keep the driver up for a considerable length of time during each
rotation of the main shaft in order that the nail-carrier, as well as the awl, may
have sufficient time during each rotation of the main shaft to do their work without
interference from the driver-bar.
The tongue C, see Fig. 2 on the driver-bar guide, works in a space between a
cap-plate C and the main slide 13, the cap-plate being held in place by a suitable
bolt C³, and in this manner it is possible to swing the guide A on or with relation
to the said main slide, as is necessary in order to enable the driver to enter at the
proper times the hole in the nail carrier F, Fig. 15, to drive a nail out therefrom
into the stock, the said driver-bar at other times being swung aside to permit the
awl attached to the awl carrier B to pass through a hole in the nose-plate D'
and make a hole in the leather or stock for the next nail to be driven by the
driver.
The pin A, referred to as connected to the inner side of the awl-carrying bar,
extends first through the slot B¹ in the plate B2, see Fig. 24, and then through the
slot A18 in the plate A" connected to the driver-bar guide, and this pin is the
device which causes the awl-bar to be guided during its reciprocations, and at
the same time the said pin, by acting in the slot A18 of the cam-plate A", causes
the driver-bar slide and driver to be swung in the proper direction about the
pivot A, to ensure the passage of first the awl and then the driver through one
and the same hole in the nose-plate. D¹.
The awl-bar B is jointed at to a lever B pivoted at B12 on a stand 1313
extended from the standard A, the upper end of the said lever having jointed to it
at B a link B in turn jointed to an car 2 of a pitman 13 having a hole to fit.
over a crank-pin on the main shaft A2.
The lower end of the pitman B16 is jointed at to a rocking lever C having its
fulcrum on a stud C5 held in a suitable ear of the main standard, the opposite end
of the said rocking lever being jointed at to the upper end of a link C6 having a
pin 6, shown in Fig. 7, which pin enters a hole in an eccentric ", see Fig. 8, of
an arm forming part of the mechanism for regulating the extra feed of the wire
to provide for upsetting of the nail.
The eccentric 68 enters a hole in one end of a lever C7 pivoted at C8 upon the

page_text: main standard, the opposite end of the said lever having a pin 60 on which hangs
the cam-bar 4, which performs substantially the same purpose herein as in the
Specification of Patent No. 6941 of 1SS4 referred to-granted to R. H. Brandon
dated the 29th April 1884; the said cam-bar through mechanism substantially such
as described in the said Patent, giving the back and forth motions to the sole-
feeding bar m, the other motions being given to the said bar by the incline at the
lower end of a lever 36 pivoted at 88, the said incline coming against a cam-block m³.
The lever 36 and cam-block m³ are substantially the same in construction and
operation as in the Patent referred to, a spring m moving the sole-feeding bar in
opposition to the cam-block me.
The upper end of the pitman is jointed at c to a link c¹, in turn jointed at c
to the upper end of the lever 36 before referred to.
The standard A has suitably secured to it a stand D², upon which is erected a
vertical stud D³ which receives over it the hub or sleeve D carrying the foot-
lift Ds, shown separately in Fig. 19, which extends under the nose-plate D'.
The outer end of the sole-feeding bar m is normally held up against the under
side of the foot-lift by the spring m³.
In the operation of the machine, the foot-lift is raised from the stock for a
defined distance, no matter what the thickness of the stock upon the horn A¹, by a
spring attached to an arm of the sleeve D, and to a pin 10 at one end of
a three-armed lever Do pivoted at 12 on the stand D2, this rising of the foot-lift
enabling the stock to be left free upon the horn to be engaged and fed by the shoe-
feed m.
The upward movement of the sleeve D' carrying the foot-lift, is arrested by the
contact of a stop 13 on the said sleeve, with one arm of the three-armed lever Dº,
the said lever during the upward movement of the sleeve by the spring, being
locked as herein shown, by the engagement of a wheel or disk thereon with a
notched locking-plate carried by a locking-lever, pivoted at on an car
depending from the stand D, as shown best in Fig. 1, the said locking-lever having
a rearwardly extended arm do, see Figs. 1, 3 and 10, through which is extended
the rod, the said rod being also extended through an ear 3 of the lever C' and
being hooked at its upper end upon a stud of a lever pivoted at d on a
projection from the main standard, the said lever having a hole at its inner end,
as shown by dotted lines Fig. 3, which in practice receives a rod not shown con-
nected to any usual stopping and starting treadle, not shown, the upper end of the
said lever having attached to it suitable devices to control the engagement and
disengagement of the clutch mechanism for rotating the main shaft at the desired
times.
The locking-lever has connected to it near its front end a spring d, the upper
end of the said spring being attached to one of the arms of the three-armed
lever D, so that the notched part of the locking-lever is normally drawn up by
the spring in the direction to engage the disk, the said spring also acting
normally to swing the long arm of the lever D in the direction of the arrow upon
it in Fig. 2.
As the nose-plate D' at the lower end of the sliding frame B descends upon and
so as to compress the stock on the horn, it strikes the foot-lift, carries it down, with
it on the stock and puts the stop 16 in position to accord with that thickness of
stock.
While the foot-lift is resting on the stock, the lever D is unlocked and placed
under the control of the spring 15 which turns the said lever until one arm thereof
meets the stop 16, and then the said lever D is again locked and it remains locked
while the nose-plate makes its next ascent and descent, and as the nose-plate rises,
it releases the foot-lift, and the latter rises under the action of spring d until the
stop 13 meets one arm of the lever Do.
In the drawing the nose-plate and foot-lift are shown as elevated, as they will be:
when the machine is stopped.
The stops 16. and 13 rise and fall with the foot-lift and the stop 16, according to.

page_text: its position, that depending upon the thickness of the stock on the horn, will arrest
the lever I with the disk opposite one or another of the notches in the plate d³,
so that when the plate d³ is thrown upwardly, as will be described, to engage the
said disk 2, it will lock the said-lever D in position.
At this time the foot-lift is held down upon the stock by the nose-plate, and the
stop 16 rests against one end of the lever D; but as soon as the nose-plate is
lifted, the sleeve D', with the foot-lift, rises under the action of the spring d until
the stop 13 strikes the said lever, which leaves the necessary space between the
surface of the stock and the foot-lift, and thereafter the nose-plate finishes its
upward movement, leaving the foot-lift at the predetermined height.
During the operation of the machine, the lever C7 is turned a uniform distance,
and the ear, as the rear end of the lever rises, strikes the collar and causes
the collar at the lower end of the rod to strike the arm of the locking-
lever d and unlock the lever D to permit the same to be moved by the spring 15
until arrested by the stop 16, and immediately thereafter the lever C7 retires from
contact with the collar and permits the spring to act again and cause the
locking-lever to engage the lever Dº.
. It is necessary to unlock the lever D° to permit the foot-lift to rise into the
position shown in Fig. 2, to enable the shoe to be taken off the horn, and to
provide for this the rod is hooked upon the stud so that as the lever dis
turned by the operator to stop the machine, it may act to lift the rod d to turn the
locking-lever and unlock the lever Dº.
The side of the cutting-box
next the pointing-tool G¹ is slotted as at 38 for
the passage into the cutting-box and across the groove 24 of the end of the cutting-
tool as it descends to cut a V-shaped notch 39, see Fig. 18, from one to the other
side of the leading end of the wire in a slanting direction to leave two clinching
prongs 40.
One side of the wire-passage in the cutting-block G is concaved, as at 41, to
receive against it one side of the wire just above the end to be pointed, the nail
being bent into the said concavity by means of a suitable bender 42 moved in unison
with the pointing tool G, the bender putting into the body of the nail a bend, as
at 7, see Fig. 18, to place the extremity of the point 40 of the nail in the axial
line of the wire, or of the nail-body..
.
The cutting-box G is made in two parts, the part having the wire-
passage 24, being provided at its lower end with a slanting notch 48, see Figs. 11
and 14, into which the end of the pointing-tool Genters, the part g about the
notch 48 serving to support the wire near its end and also serving as the second
member of a cutter.
The pointing-tool G¹ in cutting the slanting notch 39 in the end and from one
to the other side of the wire, would leave the extremities of the two prongs 40 in
the line of one side of the wire, which would be objectionable in clinching: so, to
obviate this and bring the extremities of the prongs in the line of the axis of the
wire and nail, I have provided this part of the cutting-box with a concavity 41 just
above the notch 48, into which the body of the nail just above the point is pushed
by a suitable bender, as 42, attached to or moving in unison with the pointing-tool.
the bender making the bend in the nail.
The cutting-box is held in place by a set-screw 32.
The pointing-tool is shaped as represented in cross section Figs. 12 and 13, it
having a fin 50 provided with a V-shaped edge to enter the notch 4S, and to aid
in holding the tool in place I have added a saddle 49, which, see Fig. 11, is held in
place on the arm G
The lower end of the pointing-tool while acting on the wire rests against an
adjusting plate fitted into (see Fig. 11) the flanged plate 29 and made adjustable
by an adjusting screw g³, the end of the plate acting to keep the pointing-tool
up to its work and compensate for wear.
The wire used may be of any known construction or form in cross section,
and it may be taken from any usual reel, and led through a wire guiding-tube te².

page_text: The wire-feeding device consists chiefly of an upper gripper member g³, see
Fig. 6, placed in a hole in the lever C and extended into the wire passage in or
between gripper-plates and g constituting a gripper-box, and secured to the
lever C by the screws g.
The gripper member is moved by a cam rod g, which in its movement
bears against an adjusting screw "screwed into the lever C and checked by
a check-nut.
While the feeding gripper is in grip, the lever C7 makes its descent taking the
wire with it, the clamp or holding gripper at this time being released to
permit the wire to descend into the nail-carrier for a distance sufficient for the next
nail.
When the wire has been fed, the grip is shifted to the holding gripper "
This gripper enters a hole in the angle plate 29, is extended into the wire
passage 24 of the cutting-box G, and is acted upon at its outer end by a cam
rod jointed to the lower end of the said plate it being suitably bolted
or attached to the lever 36, the said rod acting at its rear side against an
adjusting screw held in a bracket attached by a set-screw to the angle-
plate 29.
•
These two cam rods and 13 are moved backward and forward in unison with
the lever 36, but it will be noticed that while the cam rod has its cam recess back
from its end, the cam rod g3 has its cam recess at its end, and so that they
act alternately on the grippers to force one against the wire and release the other
alternately.
with the lever C
The feeding gripper rises and falls
The arm having the eccentric has a slot in which enters a stud 55 attached
to the slide frame B, and it will be seen that the said arm will be turned more or
less about the pin at the lower end of the link C according to the distance
that the nose-plate has to descend to meet the stock, the eccentric being turned
after the said nose-plate meets the stock; and the extent to which it is turned
depends upon the thickness of the stock, and as the eccentric is turned it turns and
therefore changes the relative positions of the lever C7 and link C, so that the
feeding gripper has given to it a greater throw or an excess of throw for the longer
nails to compensate for the greater upset.
This invention is not to be limited to the precise construction of the pointing-
tool, and bender, so long as they operate to notch and bend the wire as stated, nor
to the exact construction of the pointing-tool holder.
In some instances it is desired to actuate the driver-bar positively in both
directions of its movement and do away with the spring B
To do this, I have provided the devices now to be described in Figs. 22 and 23,
and by them the descent of the driver-bar is hastened while driving a fastener as it
is hastened by tlie spring.
In this part of my invention, the gear A is fastened directly to the shaft A,
instead of being mounted loosely thereon, as formerly described.
By fastening both non-circular gears A, A' to their shafts a variable speed is
given to the crank-shaft A having the crank A attached by link A" to the
driver-bar A having the driver A".
The driver on the driver-bar actuated positively by the non-circular gears, may
be made to make a very quick blow and drive a fastener with great force, clinching
it on the horn.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
a
1-A nailing machine containing the following instrumentalities, viz. :-
cutting-box having a notch opposite the end of the wire, and inclined pointing-
tool to enter said watch

page_text: Ccuts into the wire to form a notch which is slanted with relation to the axis of the
wire, the notched end of the wire forming a two-pronged point for the nail, substan-
tially as described.
2: The lever C, the feeding gripper the cutting-box and means to support
it, combined with the pivoted carrier G, the pointing-tool attached thereto, and
means to reciprocate the said carrier diagonally with relation to the axis of the wire,
substantially as described.
3:-The cutting-box notched at 48, and having a concavity at one side of the
wire passage, combined with the carrier G2, the pointing-tool therein shaped sub-
stantially as shown to co-operate with the notch 48 and cut a slanting notch in the
end of the wire, and a bender moving with the said pointing-tool to bend the wire,
substantially as described.
4: The cutting-box having the pointing-notch 48, the pointing-tcol, its diagonally
movable carrier, the main slide B, the nose-plate supported thereby, combined with
a pivoted nail carrier interposed between the said cutting box and nose-plate, sub-
stantially as described.
5 In a mailing machine, a nose-plate having a nail passage 19, a nail-carrier
pivoted to move above it and having at its inner side and at opposite sides of its
centre concaved cam surfaces 22, 23, and the cam slide 2 to lock the said carrier at
proper times in its two extreme positions substantially as described.
6A nailing machine containing a cutting-box having a point-forming notch 48
and a wire passage, a pointing-tool, a nose-plate having a nail passage, a nail-
carrier having concaved cam surfaces 22 and 23, a cam slide to vibrate the said
carrier to cut off the wire between it and the cutting-block, substantially as
described.
7-A nailing machine containing a cutting-box provided with a notch 48 and a
wire passage, a pointing-tool, a nail-carrier, a nose-plate having a nail passage,
wire feeding mechanism to feed the pointed wire into the nail-carrier for a greater
or less length according to the thickness of the stock on the horn, a nail-driver and
devices to vibrate the mail-carrier to cut off the wire and place the nail in the
carrier in position to be acted on by the driver and be driven from the carrier
through the nose-plate into the stock on the horn, substantially as described.
8: The lever 36, its attached plate and the gripper-actuating cam rods g³
jointed thereto, combined with the two grippers, the gripping plates, the lever C
actuate them and the cutting-box, substantially as described.
to
9 In a nailing machine, a wire-feeding device consisting essentially of a block
or box having a wire passage, a sliding pin arranged in the said block to contact
with the wire in the said box, a cam rod to act on the said pin, and a screw to act
on the said cam rod, to operate substantially as described.
10: In a nailing machine, the cam shaft, the frame or yoke a pivoted thereon
and having a bearing A, the main slide B entered by the said bearing, the driver-
bar guide, pivoted on said main slide, a driver-bar, its attached link, the shafts A² A³,
the crank A, and the non-circular gears between the said shaft whereby the speed
of the crank shaft A is made variable, substantially as described.
11 In a nailing machine, the following instrumentalities, visa nose-plate to
bear on the stock, a movable slide B to which the nose-plate is attached, a wire-
holding gripper carried by and adapted to rise and fall with the said slide and nose-
plate, substantially as described.
12 In a nailing machine, a work support, a nose-plate, and wire-feeding
mechanism containing an eccentric or equivalent whereby as the said feeding
mechanism is moved to provide a nail of increased length the wire is fed a distance
in excess of the thickness of the stock to thereby provide for the upset of the nail
and yet leave a uniform quantity of metal at the point where clinched, the clinch
being uniform, substantially as described.
13 In a nailing machine, a vertically-moved foot-lift, the lever- B, stops 13
and 16 rising and falling with the foot-lift, and a locking device for the said lever,
substantially as described.

page_text: 14 In a nailing machine, a vertically-movable foot-lift, a nose-plate, the
lever D, stops 13 and 16 rising and falling with the foot-lift, a spring to raise the
foot-lift, a locking device for said lever, and means to actuate the said locking
device to lock and to release the said lever at the proper time, to operate substan-
tially as described.
15 A nailing machine for use in the manufacture of boots and shoes, it
containing the following instrumentalities, riz.: a work support A'; a main slide or
head B having a nose plate D' to bear on the work support and, provided with a
nail passage 19; a vibrating nail carrier F; a cutting box G provided with a
notchi 48 and a wire passage 24; an inclined pointing tool G', and wire feeding
mechanism to grasp and feed a wire for a greater or less distance according to
variations in the thickness of the stock on the work support, and a driver bar A"
and A", and a bender 42 moving with the said pointing tool to slightly bend the
wire near what is to be the point of the nail, and means to actuate them, the parts
being constructed to operate substantially as described, the cutting tool cutting a
notch in the end of the wire to leave two prongs, the feeding mechanism feeding
the pointed wire into the nail carrier, the latter by its lateral movement cutting off
the pointed end of the wire to form a nail of the length desired and delivering the
said nail in position under the path of the driver which latter drives the nail from
the said carrier and through the said nose into the stock on the work support.
16 The arrangement or combination of parts of machinery for making from
wire a nail or fastening of metal and for inserting such metallic nails or fastenings
into leather or like work, substantially as and for the purposes hereinbefore
set forth.
Dated the 2nd day of March 1801
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.