Improvements in and relating to Machines for Making and Driving Nails in the Manufacture of Boots and Shoes.
Year: 1886

page_text: [Communicated from abroad by Orril Reuben Chaplin, Pattern Maker, Michael
Joseph Flynn, both of Boston, and George Everett Parker, of Chelsea, all of
Massachusetts, United States of America.]
Improvements in and relating to Machines for Making and
Driving Nails in the Manufacture of Boots and Shoes.
I, HENRY HARRIS LAKE, of the firm of Haseltine Lake & Co., Patent Agents
Southampton Buildings in the County of Middlesex do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
My invention relates to that class of shoe nailing machines which cuts the nails
from a wire or rod and drives them into the sole of the shoe, and it consists in
certain novel features of construction arrangement and combination of parts which
will be readily understood by reference to the description of the drawings.
In the accompanying drawings:-
Figure 1 is a side elevation of a complete machine embodying my invention.
Figure 2 is a similar side elevation of the upper portion of the machine drawn
to an enlarged scale.
Figure 3 is an elevation of the same portion of the machine viewed from the
opposite side to Figure 2.
Figure 4 is a side elevation of the lower portions of the machine viewed from
the same stand point as Figure 3 and drawn to the same scale, a portion of one of
the legs being broken away.
Figure 5 is a front elevation of the upper portions of the machine.
Figure 6 is a vertical section through the shoe supporting horn its upper bearing
and a portion of the column or standard and shewing a portion of the mechanism
for clamping the horn in a fixed position the cutting plane being on line 1-1
on Figure 5.
Figure 7 is a partial horizontal section on line 2-2 on Figure 6.
Figure 8 is an elevation of the upper bearing for the horn shaft with the cap
removed.
Figure 9 is a vertical section on line 3-3 on Figure 6 looking towards the left
of said figure.

page_text: Figure 10 is a vertical section through the front portion of the head of the
machine on the line 1-1 on Figure 5, with the reel and its stand removed.
Figure 11 is a similar view of the lower portion of figure 10, enlarged, with the
male cutting die and plunger removed.
Figure 12 is a plan of the gauge, its operating lever, and its supporting plate.
Figure 13 is a sectional plan of the same the cutting plane being on line 4, 4 on
Figure 11.
Figure 14 is a vertical section on line 5, 5 on Figure 11.
Figure 15 is a plan of the parts shewn in Figure 11 with the male die and its
carrier or plunger in position after having cut the nail and fed it beneath the
driver.
Figure 16 is a plan of the die holder with the dies removed.
Figure 17 is an elevation of the inner end of one of the stationary dies for
shaping the sides of the nail.
Figure 18 is a front elevation of the inner portions of the two stationary
cutting dies.
Figure 19 is an end view of the male cutting die or punch with its carrier or
plunger.
Figure 20 is a vertical section of the front portion of the head on line 6-6 on
Figure 10 drawn to an enlarged scale.
•
Figure 21 is an elevation of the wire feeding mechanism looking towards the
rear of the machine with the cam and feed shafts cut in section the parts being
adjusted for feeding the wire for the longest nail and in the position they assume
at the completion of the feeding of the wire.
Figure 22 is a similar view of the same parts, except the ratchet wheel which is
cut away, adjusted for feeding the wire for the shortest nail and in the position
for commencing to feed the wire.
Figure 23 is a section through a portion of the ratchet wheel and contiguous
parts on line 7-7 on Figure 21, with the parts in position for commencing to feed
the wire as indicated in dotted lines in said Figure 21.
Figure 24 is a transverse section through the cam shaft and the rear portion of
the driver operating cam and showing the ball stop for preventing the cam shaft
being revolved in the wrong direction.
Figure 25 is a section on line 8-8 on Figure 24.
Figure 26 is a vertical section on line 9-9 on Figures 2 and 3 and shewing the
lever for operating the nail cutting plunger and die in elevation.
Figure 27 is a side elevation of the die plunger operating lever drawn to an
enlarged scale.
Figure 28 is a section on line 10-10 on Figure 2 illustrating the devices for
adjusting the feed of the wire.
Figure 29 is a section of the wire carrying reel on line 11-11 on Figure 2.
Figure 30 is an elevation of the central portion of the removable head of the
reel detached from the body thereof.
Figure 31 is a horizontal section on line 12-12 on Figure 4.
Figure 32 is a front elevation of the lower portion of the horn carrying spindle
and its lower bearing.
Figure 33 is a section on line 13-13 on Figure 4 looking toward the standard
or column.
Figure 34 is a front elevation of a portion of the column or standard with the
horn carrying frame and its accessories removed.
Figure 35 is a vertical section of the lower portion of the horn carrying frame
and the rectangular hub of the clamping collar on the horn support.
Figure 36 is a vertical section of a portion of the column on line 14-14 or
Figure 4.
Figures 37 and 38 are respectively a vertical section and a horizontal section
through the tubular nail severing die drawn to an enlarged scale.

page_text: Figures 39 and 40 are elevations of a nail such as my improved machine is
adapted to make and drive, said nail being drawn to an enlarged scale.
Figure 41 is an inverted sectional plan of the same, the cutting plane being on
line 15, 15 on Figures 39 and 40 and,
Figure 42 is a similar inverted sectional plan of the same, the cutting plane
being on line 16-16 on Figures 39 and 40.
A is the base of the machine provided with three legs A¹ and having bolted
thereto the standard or column A to the upper end of which is bolted the frame A³
of the head of the machine, all as shewn in Figure 1.
B is the driving shaft mounted in bearings in the frame A³ and having mounted
thereon the pulleys B' B2, the fly wheel B³, a clutch mechanism B* and the cams B³
and B as shewn in Figures 2 and 3.
The fly wheel B³ and the pulley B2 are cast in one piece and mounted loosely
upon the shaft B to which it may be secured so as to compel said shaft to revolve
therewith by the operation of the clutch mechanism of any well known construc-
tion which need not be further described here except that it is operated by means
of the treadle C and connecting rod C as shewn in Figure 1.
To the upper edge of the frame A³ is bolted the stand E having set in its upper
end the spindle D¹ upon which is mounted the wire carrying reel or drum D², the
barrel, one head and the central hub of which are cast in one piece, the other
head being cast separate and provided with a lug a upon its inner face which fits
into a notch in the edge of the barrel to register said head and prevent it revolving
upon the hub of the button or thumb nut a¹ which fits the central portion of the
oblong opening b at the centre of said removable head shewn in Figure 30 said
button al being provided with a female screw thread to fit a corresponding male
thread on the end of the hub of the reel as shewn in Figure 29 and being so shaped
and arranged that if it is turned to the position shewn in Figure 1, its wings will
press upon the head D³ and hold it firmly in position but if turned from said
position a quarter turn or a little less to the position shewn in Figures 2, 5 and 29,
the bead D³ can be removed without the button or thumb-nut a being removed
or further unscrewed.
In the front edge of the frame A³ is formed a dovetailed guide-way to receive
the vertically reciprocating plunger E in the lower end of which is set the steel
driver d and to the upper end of which is pivotted one end of the toggle link E'
the opposite end of which is in turn pivotted to one end of the link E2 the opposite
end of which is pivotted to the upper portion of the frame A³ said link E² also
having pivotted thereto near its lower end one end of the link E³ the opposite end
of which is pivotted to the bar E which is mounted in a bearing between the
frame As and the cap A as shewn in Figure 3, said bar Et having mounted upon
a stud set in the underside an antifriction roll which fits in the path d¹ of the
cam B³ and is acted upon thereby to reciprocate said bar and thus operate the
driving plunger E to drive the nail into the shoe.
In the rear of the driving plunger E is formed in the frame A³, a channel e for
the passage of the wire from the reel D to the cutting dies said wire passing
between and being intermittently fed a distance equal to the desired length of nail
to be driven by the feed rolls e¹ and e².
The feed roll e¹ is firmly secured upon the front end of the feed shaft e mounted
in a bearing in the rear portion of the front vertical bar of the frame As which bar
has formed therein the slot e' in which work the feed rolls e¹ and e² as shewn in
Figures 2, 3 and 20.
The feed roll e is mounted upon a stud set in the free end of the pendant arm e
pivotted to the frame A³ at e6 and is pressed towards the roll e¹ by the spring, f
secured to the side of the frame A below the slot e the tension of which may be
regulated by the thumb screw f¹.
The feed shaft e³ has firmly secured thereon the ratchet wheel g, upon the side
of its bearing opposite to the feed roll e¹, and also has loosely mounted thereon the
two armed lever gl and the stop arm g² so as to be freely movable about the axis

page_text: of the shaft e³ the one to intermittently move the feed roll e¹ for feeding the wire
by the action of the pawls h pivotted to one end thereof upon the ratchet wheel g
and the other to determine and limit the backward movement of the pawl and
thus gauge the length of wire to be fed at each intermittent movement of the
feed rolls.
The free end of the arm g' is pivotted to the rod or bar F which has adjustably
secured to its lower end for the purpose of adjusting its position, the sleeve h¹
provided with the stud or pin h which is fitted to a bearing in one end of the
lever F¹ pivotted to the frame A³ at h³ and having pivotted to its other end the
upper end of the connecting-rod F2, the lower end of which is pivotted to the rear
end of the treadle lever F3 which in turn is pivotted to the stand F bolted to the
underside of the base A, a spiral spring i surrounding said rod F2 below the base A
the tension of which tends to force the rod F2 downward when the foot of the
operator is removed from the treadle lever F³.
The bar F extends above the point of attachment of the stop arm g² and has
pivotted thereto the lever G carrying at its upper end the anti-friction roll i
mounted upon a stud set therein upon which roll the cam B acts to move said
lever about its pivot, the opposite end of said lever resting against the lower or
pendent arm of the pawl lever g¹ and serving to move said lever g' about its axis
in one direction and to be moved in the opposite direction by the action of said
lever g¹ thereon, when the cam B6 acts upon the anti-friction roll 2 mounted upon
a rearward extension of the pivot pin upon the front end of which is mounted the
pawls for the purpose of moving said pawls and the ratchet-wheel about the axis
of the shaft e³ in the direction indicated by the arrow on Figure 21.
The stop arm g² is provided with the latterally projecting lug j which engages
with the edge of the pawl lever g₁ to limit its backward movement or the
movement in a direction the reverse of that indicated by the arrow on Figure 21.
The length of wire to be fed and consequently the length of the nail to be cut
is determined by the position of the lug ; which position is determined by the
vertical movement and position of the bar F and the lever G carried thereby.
To control and regulate the vertical movement and position of said bar F the
pivot pin by which the rod F is connected to the lever F¹ projects through said
lever and from its inner surface in position to engage with one or the other of two
scroll-like stop-cams k and according as the operator's foot is placed upon or
removed from the treadle F³, as shewn in Figure 28.
The cams kand are respectively mounted upon the short horizontal shafts /³
and k³ fitted to bearings in the frame A³ and having secured to their other ends
the radius arms and respectively in the free end of each of which is fitted the
locking bolt having secured to its outer end the operating button or head 13 by
means of which said bolt may be drawn outward against the tension of the spiral
spring which tends to force said bolt into any one of a series of holes 15 arranged
in an arc of a circle about the axis of the shaft k² or k³ all as shewn in Figures 2
and 28.
The operation of the wire feeding mechanism is as follows:-
The coil of wire having been placed upon the reel and the end of the wire having
been passed down the channel e until its end is inserted between the feed rolls e¹
and e³, and the cams k and k¹ having been set as indicated in Figure 3 if the
operator places his foot upon the treadle Fs and the driving shaft is set in motion a
length of wire equal to the longest nail that can be cut and driven in the machine
is fed.
If it is desired to cut a slightly shorter nail the cam k is turned in the direction
of the arrow on Figure 3 by withdrawing the locking bolt in the radius arm 1,
moving said arm in the direction indicated by the arrow on Figure 2 until the bolt
enters another hole 15.
The effect of this is to move the stop lug ; in the direction indicated by the arrow
in Figure 21, by the upward movement of the bar F thereby reducing the distance
between said -lug and the edge of the arm g¹ and consequently, the distance which

page_text: said arm and its pawl can be moved in a backward direction to make a new
engagement of said pawls with the ratchet wheel g.
If it is desired to feed a length of wire equal to the shortest nail to be cut the
operator removes his foot from the treadle F3 when the rod F2 will be forced down-
ward by the spring until the inner end of the pin comes in contact with the
cam k¹, said cam being in the position shown in Figure 3 thereby reducing the space
between the lug j and the edge of the pawl carrying arm of the lever g¹ and conse-
quently the movement of the feed pawls to a minimum.
If it is desired to increase the length of the shortest nail to be cut and driven in
a given job, the cam ¹ is turned in the direction indicated by the arrow on Figure 3
until the lug is adjusted to the proper point.
It will be seen from the foregoing that the machine is adapted to feed two
different lengths of wire for nails to be driven into the fore part and shank of the
shoe respectively the change being made from one length to the other by the
operator simply putting his foot upon or removing it from the treadle F³ and that
the length of feed in either case may be readily changed by adjusting the cams k
and k
The machine as shown in the drawings and herein described is so arranged that
the operator must keep his foot upon the treadle F³, while driving the longer nail
and remove it when the shorter nail is being driven but it is obvious that this order
may be reversed if desired without affecting the principles of my invention by
pivotting the treadle lever F3 at its rear end and connecting the rod F³ to said
treadle between its pivot and its free end, and arranging the spring i so as to move
the rod F upward instead of downward.
H is the die holding block bolted to the underside of the front portion of the
frame A³ and provided in its upper face with the rectangular groove m which
extends from side to side thereof parallel with its front face in which are fitted so
as to be adjusted lengthwise thereof the cutting dies H¹ and He said dies each being
provided with an adjusting screw m¹ tapped therein and provided with a collar n
fitted to revolve in vertical grooves n¹ formed in the walls of the groove m all as
shown in Figures 14, 15 and 16.
The die block H also has formed in its upper face another rectangular groove m³
extending from the centre of the groove m to the rear side of said block and at
right angles to the groove m to serve as a bearing and guide for the plunger I
having fixed in its forward end the steel male cutting die n² as shown in Figure 15.
The two dies H¹ and H' when properly adjusted relative to each other form the
female cutting die for shaping the sides of the nail in co-operation with the male
die n. The inner ends of the dies H¹ and H are slightly inclined to a per-
pendicular said incline corresponding to the taper to be given to the sides of
the nail.
Said dies are also provided with vertical slots o extending from their inner ends
towards their outer ends and parallel with their front faces the centre line of said
slots being in the same transverse plane as the centre of the channel e down which
the wire is fed to the dies.
At the junction of the groove m and m² a circular recess is formed in the die
block H to which is fitted the base flange o¹ of the bifurcated plate o³ which projects
upward into the slots o of the dies H' and H³ the space between the two parts of
the plate of being of suitable width to permit the free passage between them of the
wire from which the nails are to be cut and a hole of corresponding diameter is
made through the base o¹ through which the waste metal cut from the wire in
shaping the nail may fall, a larger hole p being made through the lower portion of
the die block H for the same purpose as shown in Figures 11, 14, and 20.
The office of the bifurcated plate o³ is to serve as side guides to the wire from
which the nails are to be cut as it is fed downward, the two parts of such plate
extending upward into the slots o which slots extend longitudinally into the dies H¹
and H2 to a considerable distance as shown for the purpose of enabling said dies to
be sharpened by simply grinding their inner ends and were it not that the plate.o

page_text: is introduced, there would be nothing to prevent the wire when it is fed downward
from springing to one side or the other so as to be improperly acted upon by the
male cutting die n².
The die H also has formed in its inner end the horizontal slot o³ extending from
the front to the rear side thereof and the inner end of the stock of said die which
is above said slot being inclined to a perpendicular plane in a direction opposite to
the portion below said slot as shown in Figure 14.
The dies here described are designed to cut the nail which is illustrated in
Figures 39 to 42 inclusive the upper surface of the die H¹ being designed to cut the
shoulder c under the head of said nail, the surface which forms the under side of
the slot o³ of the die H to cut the shoulder c¹ and the portion of said die above the
slot o³ to cut the notch d in the head of said nail.
с
The front wall of the groove m has formed therein a vertical groove of of a
capacity sufficient to receive the nail after it is cut from the wire, said groove being
directly beneath the driver d and in line with the hole o' through the nose I¹
which rests upon the shoe sole when the nails are being driven.
Directly above the groove m² and the plunger I, and fitted to a rectangular groove
formed in the underside of the front portion of the frame A³ is the block J in which
is set the steel bushing p¹ secured in the desired position by the wedge or key oº,
the lower end of which acting in conjunction with the upper front corner of the
male die n³, serves to sever the desired length of wire from the main body thereof,
to form a nail said block also having formed in its forward end a hole to serve as a
guide for the driver d as shown in Figure 10.
The rear end of the plunger I is pivotted at p² to the lever J¹ mounted upon the
pin 3 and adjustably connected at its upper end to the arm J* (mounted upon
the same pin) by means of the screw bolt pt and the threaded ear p on the arm J2
as shown in Figures 26 and 27.
The arm J has set in its free end a stud q upon which is mounted an antifriction
roll q which fits into and is acted upon by the path d¹ of the cam B³ to vibrate the
duplex lever J1 J2 and impart to the plunger I and male cutting die n² à recipro-
cating motion for the purpose of cutting a nail from the wire and feeding it beneath
the driver d.
The lever J¹ J2 is made in two parts and provided with the adjusting screw p
for the purpose of adjusting the male cutting die n³ to compensate for grinding its
front end to keep it in good cutting condition, and also to compensate the wear of
the cam path d¹ and the roll q¹.
To the under side of the die block H is pivotted the lever K carrying at its front
end the roll or truck r mounted upon a stud set in the end of said lever and
arranged to rest upon the sole of the boot or shoe being nailed in close proximity
to the nose I¹, said lever having formed upon the under side of its rearwardly
projecting arm, a cam surface r¹ with which the anti-friction roll mounted upon
a pin in the lower end of the bifurcated arm of the lever J¹, engages to control the
position of said lever and the roll or truck r, that is, while the nail is being driven
the lever J¹ J remains in the positions shown in Figures 1 and 2 and the bottom
edge of the truck is flush with the lower end of the nose I' but when the nail is
driven and it is desired to feed the shoe preparatory to driving another nail the
lever JJ is vibrated or moved about its pivot, to retract the male cutting die n²
to such a position that the wire may be fed downward in front thereof during
which movement of the lever J J the roll acting upon the inclined cain
surface of the lever K raises the rear end of said lever and depresses its front
end with truck thereby forcing the shoe sole away from the nose I, in which
position it is held while the shoe is being fed forward to the proper position for
driving the next nail, thus relieving the shoe sole from the friction of the stationary
nose and substituting therefor the rolling surface of the truck r, the shoe supporting
horn L being automatically moved downward at the same time that the shoe is
moyed away from the nose 1¹ by the same means that moves the shoe away from
the Lose.

page_text: To the under side of the lever K and just in the rear of the truck r is fitted so
as to be movable endwise thereon the gauge provided upon its upper side with
lips to embrace the sides of said lever and guide it in its endwise movements and
having forined in its under side a transverse rectangular groove to receive the cam
like end of the adjusting and locking lever K¹ pivotted to the upper surface of the
forward portion of the cap K2 adjustably secured to the under side of said lever K
so that the gauge may be set to a greater or less distance from the orifice in the
nose all as shown in Figures 10, 11, 12, and 13.
This gauge is used to guide the sole of the boot or shoe and determine the
distance of the row of nails from its edge said gauge being adjusted to the position
shown in Figures 11 and 13 when only a single row of nailing is to be used, but if
a second row is desired the lever K¹ is turned into the position shown in Figure 12
when the gauge is retracted and locked in the desired position for gauging the
second row of nails.
The lever K is provided with the shoulders 8 and 8 which engage respectively
with the front or rear wall of the groove in the underside of the gauge as shown
in Figures 12 and 13 so as to prevent any movement of the gauge until the
lever K is moved.
Lis the shoe supporting horn pivotted by the pin sa to the bracket L¹ and locked
in a vertical position by the spring pressed locking bolt st in such a manner that
by retracting said locking bolt the horn may be moved about the pivot pin
whenever it is desired to remove the die block or the driver or for any other
purpose.
The bracket L¹ is mounted upon the upper end of the supporting rod L2 in such
a manner that it may be freely revolved about the axis of said rod.
The rod L is mounted in bearings M1 and M2 on the bar or frame M, and is
provided with a collar L³ to limit its upward movement and is surrounded between
said collar and the bearing M³ with the spiral spring L' which serves to maintain
said collar L³ in contact with the under side of the bearing M, when the work is
removed from the horn or the sole of the shoe, when placed upon the horn in
contact with the end of the nose I¹.
The lower end of the rod L2 is slotted to receive the upper end of the link L'
which is pivotted thereto, the opposite end of said link being pivotted to the
treadle lever N which in turn is pivotted by its rear end to the rear leg of the
machine as shown in Figures 1 and 4 and by means of which the horn L may be
depressed if desired.
The bar or frame M is pivotted at its upper end to the front of the column A²
by means of a hollow or tubular bolt t and nut t¹ as shown in Figure 6, and has
formed in its lower end the open slot to the sides of which engage with the sides
of a rectangular projection from the rear of the bifurcated collar L, which is
clamped to the rod L near its lower end for the purpose of preventing the rod L*
from turning about its axis.
The collar L also has formed thereon or set therein the rearwardly projecting
pin 3 by means of which the arm N¹ is pivotted to said collar, said arm N¹ having
its upper end slotted or forked and located between two rearwardly projecting
ears u, u¹ formed on the lower end of the frame M in which are set the adjustable
stop screws u² and u³ for the purpose of limiting and regulating the amount of
movement that may be imparted to the arm N₁ independent of the movement of
the frame M, all as shown in Figures 33 and 35.
A horizontal shaft O is mounted in bearings in the standard or column A2 to
which rotary motion is imparted by means of the bevel gear wheels O¹ and O2 the
shaft Os, the worm wheel O' and the worm 05 all as shown in Figures 3, 4, 5
and 31.
The shaft O has formed upon, or set in, its front end, the three-sided pin which
is located eccentric to the axis of the shaft O and projects into the slot formed in
the upper end of the arm N' so that as the shaft O is revolved in the direction
indicated by the arrow on Figures 33 and 34 the pin v will successively act upon

page_text: the straight side the curved side and the bottom of the slot formed in the upper
end of the arm N¹.
The operation of the shoe feeding mechanism is as follows.
The shoe being placed upon the horn in the proper position to drive the first
nail, and held by the operator's hands and the cam shaft being set in motion, a
nail is cut and driven.
When the male cutting die is retracted to a position to permit another downward
movement of the wire the boot or shoe is forced away from the nose, and the horn
upon which the sole of the boot or shoe rests is depressed by the action of the
roll upon the inclined cam surface of the lever K at which time the triangular
or three sided pin v engages with the curved side of the slot formed in the upper
end of the arm N¹ and moves said arm around its pivot until it strikes the screw
stop 2 and then moves the frame M about its pivot, its lower end moving to the
right and the tip of the horn moving to the left and carrying the shoe with it a
distance equal to the desired distance between two nails when said three sided
pin vengages with the bottom of said slot and moves the arm N¹, the rod L² and
the horn L downward so as to remove the tip of the horn from contact with the
boot or shoe sole, the operator holding the boot or shoe up in contact with the
roll and then the pin v coming in contact with the straight side of the slot in
the cam N1, moves said arm into contact with the stop screw u³ and then moves
the frame M, rod L2 and the horn L into their normal or upright positions, and
as the pin moves away from the bottom of the slot in the arm N¹ the spring L
expands and moves said rod L2 and the horn L upward until the tip of the horn
comes in contact with the inner surface of the sole and clamps said sole between
the tip of the horn and the nose 1¹, the roll having been moved upward into
its normal position by the forward movement of the lower end of the lever J1
releasing the long arm of the lever K and permitting said arm to fall into the
position shown in Figure 2.
To prevent the horn from yielding to the pressure of the driver while a nail is
being driven into the boot or shoe sole, the horn-supporting rod L2 is clamped firmly
to its upper bearing by the shoe v¹ curved to fit the periphery of said rod and
secured to the end of the plunger having its bearing in the tubular bolt t and
having mounted thereon the spiral spring between a shoulder on said plunger
and a shoulder formed in said tubular bolt, said spring serving to retract the shoe vl
from the rod L.
The shoe v is forced into contact with the rod L' at the desired time in the
operations of the machine by the action of the cam P upon the rod P¹ (the upper
end of which is pivotted to the toggle links and interposed between the rear
end of the lever and the plunger ) and is forced downward or held in contact
with said cam by the spring set in a recess in the column A2 as shown in
Figures 6 and 9.
The lever vis pivotted at v to the standard or column A2 with its long arm
depending from said pivot and has set therein the adjusting screw w the inner end
of which engages with the conical pointed rear end of tho plunger wl fitted to a
cylindrical chainber formed in said column within which is placed the spiral spring w
the tension of which determines the amount of pressure which can be applied to
the rod L by the shoe v and the tension of said spring may be increased or
diminished by turning the screw w.
A stud w³ is set in the rear side of the column A³ and is provided at its outer
end with the adjustable stop nut w to limit the outward movement of the forked
lower end of the lever to which embraces the stud w³, and with the check nut w³
as shown in Figure 2.
To prevent the driving shaft being revolved in the wrong direction the rear end
of the cam B5 is chambered out to receive the hub A of the frame A³ which has a
portion of one side cut away to form an excentric or cam surface w terminating at
one end in the abutment was shown in Figure 24.

page_text: The inner periphery of the chambered end of the cam B³ has formed therein the
circumferential groove w³ having a curved cross section to fit the periphery of the
ball which when the machine is at rest rests in said groove with its opposite side
in contact with the excentric surface was shown in Figures 24 and 25.
If the shaft B is revolved in the direction indicated by the arrow on Figure 24
the ball will be moved slightly towards the abutment w' and present no obstacle
to the revolution of said shaft but if an attempt be made to revolve the shaft in
the opposite direction the ball x will be moved in the opposite direction and wedged
firmly between the bottom of the groove ws and the surface w thereby rendering
further motion of the shaft in that direction impossible.
It is obvious that the distance apart at which the nails shall be driven may be
varied by turning the stop screw u³ in, if it is desired to increase the distance
between the nails, or out, if a less distance is desired.
It will also be obvious upon examination that the tubular cutting die p¹ may be
sharpened by grinding its lower end and that it may be readily adjusted length wise
to compensate for such grinding or about its axis to bring another part of its cutting
corner into position to do the cutting by means of the clainping wedge of as shown
in Figures 37 and 38.
The spindle D¹ upon which is mounted the wire carrying reel or drum D2 has
fitted thereon the spiral spring y and the nuts y¹ and y by which said spring is
forced against the end of the hub of the reel and its tension regulated for the
purpose of checking or regulating the rotation of said reel.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed as communicated to
me by my foreign correspondents I declare that what I claim is
First In a machine for driving nails the combination of the vertically recipro-
cating plunger E carrying in its lower end the driver d, the toggle links E¹ and E',
the link E³, the bar E provided with the roll b', and the cam B³ all arranged and
adapted to operate substantially as described.
Second The combination of the dic-block H provided with the rectangular
grooves ml and m², a pair of cutting dies located in said groove m and constructed
and arranged to be adjusted towards and from each other and to be sharpened by
grinding their inner or contiguous ends, and a reciprocating male die carried by a
plunger mounted in the groove m² and constructed to co-operate with the first
mentioned dies to sever portions of metal from each side of the wire to shape
the sides of the nail.
Third The combination of the adjustable dies H1, H2 the stationary tubular
die and the reciprocating male cutting die n all constructed, arranged and
adapted to cut away portions of the metal from each side of the wire to shape the
sides of the nail and to sever the nail from the body of the wire.
Fourth-The combination of the cylindrical tubular die p¹ set in a cylindrical
socket and the wedge or key of fitted to and movable in a bearing at right angles
to the die p¹ and adapted to clamp said die to its socket in any desired position.
Fifth in combination with the adjustable dies H1, H2 each provided with the
vertical slot o, the bifurcated plate o projecting into said slots o, substantially as,
and for the purpose described.
Sixth The combination of the die block H provided with the grooves n
and n³, n¹ the dies Hand H2 fitted to said groove m and the adjusting screws m¹ m¹
each provided with the collar n which projects into and engages with the grooves n¹,
substantially as described.
Seventh The combination of the die block H, the adjustable cutting dies H¹, H
each provided with the vertical slot o the bifurcated plate o' the tubular die p¹
and the reciprocating male cutting die n² all arranged and adapted to operate
substantially as described.
Eighth The combination of the die block H provided with the nail driving
passage of, o³ the adjustable dies H1 H2, the tubular die p¹, the plunger I carrying
.

page_text: the male cutting die n², the duplex lever J¹ Je provided with the adjusting screw p‘,
and the cam B all arranged and adapted to operate substantially as described.
Ninth In a machine for cutting nails from wire, and driving the same, the
combination of a pair of feed rolls arranged to gripe the wire, a ratchet wheel
secured upon a feed roll shaft; a two armed lever carrying at the free end of one
arm, a pawl to engage with said ratchet wheel and mounted upon and movable
about said feed roll shaft, a second two armed lever mounted upon and movable
about an axis outside of or excentric to said feed shaft and arranged to bear at one
end upon the arm of the pawl lever opposite to the pawl, and a cam constructed
and arranged to act upon the pawl lever to impart a partial revolution to the
ratchet, its shaft and feed roll and then during the same revolution to act upon the
second lever to move it about its pivot and through it to move the pawl lever in a
backward direction preparatory to the engagement of the pawl with another tooth
of the ratchet wheel for a second feed substantially as described.
Teuth-As a means of regulating the length of wire to be fed, the combination
of a pair of feed rolls, constructed and arranged to gripe the wire to be fed, a
ratchet wheel secured upon a feed roll shaft, a two armed lever mounted upon and
movable about said shaft and carrying at one end a pawl to engage with said
ratchet wheel, an arm provided with a laterally projecting stop lug and also
mounted upon and movable about said shaft, a vertically movable bar pivotted to
the free end of said stop arm, a spring for moving said bar upward, and an
adjustable cam stop for limiting and varying the upward movement of said bar,
a two armed lever pivotted to said bar with one end in contact with the toe of the
pawl lever, and a cam constructed and arranged to act alternately upon the pawl
lever to feed the wire, and upon the last mentioned two armed lever to move said
pawl lever backward into contact with the stop lug substantially as described.
Eleventh The combination of the feed rolls e¹, a², the feed shaft e³, the ratchet
wheel g, the pawl lever g¹, the pawl h, the bar F the lever G pivotted to said
bar F, the anti-friction rolls and 2, the cam B6, the lever F1, the rod F³, the
treadle F³, the spring i, the stop cams and, the shafts 2 and 3, the radius
arms and, the locking bolts 12, 1, and two series of detent holes arranged in
arcs of circles about the axis of the shafts 2 and 3, all constructed arranged and
adapted to operate substantially as, and for the purpose described.
Twelfth In combination with the yielding horn L and the stationary nose L',
the lever K provided with the cam surface 71 and carrying at its front end the
roll r, the lever J¹, J2 and the cam B5 all arranged and adapted to force the boot or
shoe mounted upon the horn away from contact with the nose preparatory to
feeding the boot or shoe to a position for feeding another nail.
Thirteenth In a shoe nailing machine the combination of the gauge r* provided
with a transverse groove, the stationary cap K and the adjusting and locking
lever K¹ all arranged and adapted to operate substantially as described.
Fourteenth In a nail cutting and driving machine the combination of a
reciprocating die for cutting the nail from the wire, a reciprocating plunger and
driver for driving the nail, a lever carrying a rotatable presser roll for forcing the
shoe sole away from the nose of the machine, a lever constructed and arranged to
reciprocate the cutting die, and vibrate the presser roll carrying lever, a reciprocating
bar, and suitable toggle links connecting the same with the nail driving plunger,
and a cylindrical path cain constructed and arranged to operate all of said devices
substantially as described.
Fifteenth The horn L pivotted to the bracket L' loosely mounted upon the
rod L in combination with the locking bolt 8* constructed and adapted to secure
said horn in an upright position and permit its being turned down to a horizontal
position substantially as described.
Sixteenth-The combination in a nail cutting and driving machine of a work
supporting horn mounted upon a pivotted frame, and a three sided crank pin for
imparting to said horn and frame an oscillating motion about its pivot and
✓ depressing said born and rod substantially as, described for the purposes, specified.

page_text: Seventeenth―The combination of the frame M³, the rod L2, the spring L', the
horn L, the forked arın N¹ pivotted to the rod L2, the three sided crank pin v, the
adjustable stop screws u³, u³ and the revolving shaft O all constructed, arranged
and adapted to operate substantially as, and for the purposes, described.
Eighteenth A work supporting horn mounted upon a yielding support having
bearings in a pivotted frame as set forth in combination with mechanism sub-
stantially as described for imparting to said frame and horn a vertical and a lateral
motion substantially as, and for the purposes, described.
Nineteenth-In combination with a work supporting horn mounted upon a
yielding and vertically movable rod, a friction clamping shoe arranged to press
against the periphery of said rod to clamp it in any desired position. and mechanism
constructed and arranged to intermittently reciprocate said shoe in a direction at
right angles to the axis of said horn supporting rod.
Twentieth-The combination of the frame M mounted upon and movable about
a horizontal tubular pivot, the horn supporting spindle L mounted in bearings on
said frame, the spring L the friction clamping plunger v₁, v mounted in said tubular
pivot, and mechanism for imparting to said clamping plunger a reciprocating
motion substantially as described.
Twenty first-The combination of the horn L, the rod L2, the spring L, the
frame M mounted upon the fixed tubular pivot t, the clamping plunger v1, v³, the
toggle links v, vo, the bar P¹ and the cam P all arranged and adapted to operate
substantially as described.
Twenty second-The combination of the horn L, the supporting rod L2 the
spring L, the frame M, the pivot bolt t, the clamping plunger v1, v2, the toggle
links 4, 5, the lever v, the adjusting screw w, the plunger w', the spring w², the
stop w, the cam P, and the rod or bar P¹ all arranged and adapted to operate
substantially as, and for the purposes, described.
Twenty third-In a machine for cutting nails from a continuous wire and
driving the saine, a reel or drum for carrying the coil of wire, having a detachable
head secured in position y a threaded thumb nut, and provided with a central
oblong opening of a shape and size to permit the free passage of said thumb-nut
through the same when turned to a certain position and allow the wings of said
nut to bear upon said head to clamp it to the drum when said nut is turned a
quarter of a revolution or less from said other position substantially as described.
Twenty fourth-In combination with a nail driving and severing mechanism the
driving shaft B, a recessed bub secured firmly upon said shaft and provided
in its inner periphery with the circumferential groove wa, the stationary hub A³
provided with the excentric surface w and the abutment w, and the ball x all
arranged and adapted to operate as, and for the purposes, described.
1
4 T
1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.