Improvements in Machinery for Inserting Screw Threaded Wire in the Manufacture of Boots, and for other uses.
Year: 1896

page_text: Date of Application, 4th Feb., 1896-Accepted, 30th May, 1896
COMPLETE SPECIFICATION.
Improvements in Machinery for Inserting Screw Threaded Wire in
the Manufacture of Boots, and for other uses.
A communication from abroad by STILLMAN WILLIAMS ROBINSON, of Columbus,
in the County of Franklin, State of Ohio, one of the United States of
America, Professor.
"
I ALFRED GEORGE BROOKES of 55 and 56 Chancery Lane, in the County of
London, Chartered Patent Agent, 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 an improved machine for
inserting screw-threaded wire into soles, etc., in the manufacture of boots and shoes,
and other work.
In the machine to be herein described the end of a wire is screwed into the
stock, the term used to designate the leather of the sole or other work, and is then
cut off to produce a fastening, each fastening being made of just the proper length
for the thickness of the stock at the point where the same is to be united,
variations of length of fastenings being automatically determined, as will be
hereinafter described.
Novel means are provided whereby the feed movement of the wire being screwed
into the stock is made positive and substantially uniform while entering the stock,
and then the wire feeding spindle is raised quickly, and to effect this I employ
non-circular gearing.
One of the two feed rolls is mounted at the lower end of the rotating hollow
spindle in a movable part or frame having combined with it a suitable spring
whereby the degree of pressure with which the feed rolls grasp the wire may be
adjusted.
The wire feeding wheels are mounted in a novel manner, whereby they are
enabled to run with a minimum of friction.
The hollow rotating wire-carrying spindle is mounted in bearings which are free
to tip or oscillate somewhat, as may be required, to prevent the undue friction and
heating of the spindle when being rotated rapidly.
A rotatable spindle provided with a two-part head, feeding wheels mounted in
said head, and a spring acting on one part of said head to hold its feed wheel in a
yielding manner toward the feed wheel of the other part of said head are arranged
and used substantially as will be described.
The rotatable spindle, its feed wheels, a shaft having a gear wheel and a ratchet
wheel, a wheel surrounding said shaft and provided with an annular pawl to engage
said ratchet wheel, and a rack to move said shaft and pawl are also used.
In a machine for inserting screw-threaded wire, means to support the work; a
wire-carrying spindle supported at its upper end in a bearing, and provided below
said bearing with a fixed collar; a hearing to sustain said collar; a cross-head to
sustain said bearing, a lever to reciprocate said cross-head to lift said bearing and
spindle, and means to rotate the said spindle, are arranged and used.
Also, the invention comprises the use in a machine for inserting screw-threaded
wire, of a rotatable spindle provided with wire feeding devices, and having an
attached ring, a box supporting said ring, a collar fixed to said spindle, and a
cross-head having a seat to support said box loosely.

page_text: Also, it consists in the use of cutter-carrying levers having arms provided with
toothed sectors, a threaded block engaged by and between said sectors, and an
upright shaft. having a quick thread to engage said block.
Also, in the use of cutter carrying levers having arms provided with toothed
sectors, a threaded block engaged by said sectors, an upright shaft having a quick
thread to engage said block, and having a second threaded part above it, a
threaded box for said second threaded part, and means to rotate said shaft.
Also, in the use of cutter carrying levers having arms provided with toothed
sectors, a threaded block engaged by said sectors, an upright shaft having a quick
thread to engage said block, and with means to raise said rod.
Also, in the use of the rotating spindle, wire feeding mechanism carried thereby,
a sleeve, a strap or yoke embracing the said sleeve, a lever, non-circular gears,
and devices intermediate one of said gears and the said lever, to move the latter.
Also, in the use in a machine of the class described, of the non-circular gears
employed in feeding the wire, the revolving spindle and intermediate actuating
devices, and clutch mechanism, as described, for stopping and starting the nailing
while the spindle continues its rotation.
Also, in the use in a machine of the class described, of the rotating wire-
carrying spindle and feed wheels, and bearings screwed into the head of the spindle
and having deep chambers for the reception of the axles of the feed wheels, said
bearings retaining oil and keeping the feed wheel axles lubricated.
Also, in the use in a machine of the class described, of the wire-carrying spindle
the lever to actuate it, connections between said lever and said spindle, the eccentric
strap connected to said lever, an adjustable two-part eccentric, a non-circular gear
to which said eccentric is attached, and gearing between said non-circular gear and
Baid spindle whereby the stroke of the spindle may be varied.
Also, in the use of the wire-carrying spindle, a box, a sleeve, a strap or yoke to
sustain said sleeve, wire feeding mechanism supported on said spindle, and devices
between said sleeve and said feed mechanism to actuate the latter, a lever jointed
to said strap or yoke, a cross-head to sustain said box, the connected nose-plate,
and devices to move said lever and impart to said sleeve a definite positive stroke.
Also, in the use in a nailing machine for uniting soles to uppers with screw wire
having threads of uniform pitch, of a revolving spindle having wire feeding
mechanism, non-circular gears, and mechanism actuated thereby to feed the wire
at a uniform rate, and to then make the return stroke of the feeding mechanism
quickly.
Also, in the use in a screw-wire nailing machine for fastening soles to uppers, of
a work-supporting horn of constant height; a revolving wire-carrying spindle
supported on a cross-head connected to a nose-piece and adapted to be arrested as
the nose plate meets the stock on the horn, wire-feeding mechanism, a strap or
yoke supporting said cross-head when the latter is not resting by its nose piece on
the stock, mechanism connected with the said strap or yoke to impart to it a
definite constant stroke, and devices between the strap or yoke and the said
wire-feeding mechanism."
Also, in the use of means to support the work, a wire-carrying spindle, a connected
ring, a bearing to support said ring, a cross-head to sustain said bearing, a strap
or yoke to sustain said crosshead, a sleeve connected to said strap or yoke, a lever
to move said strap or yoke, wire-feeding mechanism, and devices intermediate said
strap or yoke, and wire-feeding mechanism to actuate the latter more or less during
the descent of said strap or yoke according to the thickness of the stock.
Also, in the use of the rotating wire conveying spindle, and its attached ring, a
box, a strap, its attaching lever, a two-part ring, a buffer ring and cross-head to
sustain said box and spindle.
Also, in the use in a machine of the class described, of gear having a hub, an
eccentric ring surrounding said hub, an eccentric strap surrounding said ring, and
a pin to hold said ring in one of two positions on said hub.

page_text: Also, in the use of the spindle and its attached pulley having a flaring opening
t its upper side, the covering plate extending across the upper side of the coil of
vire, and devices to connect portions of said covering plate to the said pulley, said
arts being arranged to present the open centre of the coil of wire about the wire
assage in the spindle.
Also, of the use of the spindle and its attached pulley having a flaring opening
t its upper side, and a wire-holder having upper and lower annular retaining plates
to hold the wire and connected to the said pulley, and to present the open centre
of the coil of wire about the wire passage in the spindle.
Fig. 1, in front elevation, represents the upper part of the machine containing
the present improvements, a portion of the frame-work and other parts being partially
broken out to show parts behind;
Fig. 14, a detail to show part of the apparatus for actuating the wire cutting
mechanism;
Fig. 2, a left-hand side elevation of the machine shown in Fig. 1;
Fig. 2 shows part of the gear d and some of its holes d";
Fig. 3 shows a section below the line a Fig. 2, chiefly to show the non-circular
gears and compound eccentric actuated by or through them to effect the feeding
of the wire and the raising and lowering of the spindle;
Fig. 34, a detail of the outer or ring-like part 6 of the compound eccentric ;
Fig. 4 is a sectional detail showing the head at the lower end of the revolving
hollow wire-carrying spindle through which the wire is fed by the feed rolls;
Fig. 5 is a section in the line 2, Fig. 4, the line showing the line of section
for Fig. 4;
Fig. 6 is a detail showing part of the wire cutting mechanism;
Fig. 7, details of the clutch mechanism to be described;
Fig. 8, a detail of the annular multi-toothed pawl, shown also in Figs. 4
and 5.
and
Fig. 9, a sectional detail in the line 23, Fig. 5;
Fig. 10 is a top view of the wire-holder fixed to the upper end of the spindle ;
Fig. 11 is a section of Fig. 10 in the dotted line y-y.
The frame-work or column A of the machine, said column having in practice feet
to rest upon the floor, is and may be of suitable shape to sustain the various
working parts to be described.
The frame-work has at its upper end a suitable chamber in which is placed a
box A', having at its exterior a semispherical or ball-like projection or enlargement
resting on a semi-spherical seat A*, said box receiving within it and serving as a
bearing for the hollow spindle B, the box being free to tip or oscillate to
compensate for gyrating motions or vibrations of the spindle when being run
rapidly.
The upper end of the box A' is enlarged and hollowed out to constitute an oil
well in which is placed suitable lubricating material.
The upper end of the spindle has fast upon it a pulley B200 driven continuously
from any suitable shaft, all the motions of the various different working parts being
derived from said spindle.
The pulley B200 has a top flange B" provided with suitable ears B" to which
are connected by suitable bolts Bears B of a wire-holder B", the said ears
having as shown slots with large ends B to fit easily over the bolts, the said slots
enabling the holder to be removed without moving the bolts.
A wire holder B is open at its lower side, to receive therein the coil of wire,
which is held in place by a plate B800, see Fig. 11, detachably secured to the holder
by suitable ears, as B1, or in any other suitable manner, the periphery of the plate
having enlarged portions B03 to be brought into engagement with the ears by
slight rotation of the plate, maintaining it in position.
A central opening B in the plate permits the passage of the wire therethrough,
the plate resting on the ears B".

page_text: By this construction the operator is enabled to place the coil of wire in the
holder B when removed from the machine and turned upside down, and the
plate B is then applied and secured, after which the ties of the coil are removed
and the coil is thus retained in the holder when turned over and placed on the
machine.
The holder lies flat with the axis of the coil of wire coinciding with the wire
receiving hole of the spindle, and the pulley space between the holder and the
spindle is cut away to provide a conical passage in which the wire may gyrate
as the latter is drawn from the central opening of the coil of wire without rotating
the latter relative to the spindle.
The wire w will be led from said holder or coil down through the centre of the
spindle, all as required in screw wire machines of the class upon which this is
intended as an improvement, the coil of wire rotating continuously with the spindle
as the wire is being consumed in the machine.
The lower end of the spindle B bas, see Fig. 4, a two-part yoke or head B°
and B, the part B being mounted upon the part B by pivot a, the upper end of
the part B being shaped to receive loosely a suitable spring a', preferably made
as a washer, which at its centre receives the head of a stud screw a², a collar a³
of the stud screw acting against the inner side of the spring; see Fig. 4, the
stud screw entering a threaded hole in the block a' attached to the part B° of the
head, the rotation of said stud screw in one or the other direction causing it to act
with greater or less force upon said spring and consequently press the lower end of
the part B of the head toward the part
Bº.
The head referred to hins screwed into it three sets of bearings B', all substantially
alike, said bearings being represented, see Fig. 5, as screws chambered at their inner
ends to constitute oil cups, said cups receiving loosely the ends of the axles B', B
and B, the chambers in the sleeve bearings being large and deep enough to retain
oil and keep said axles well lubricated, the oil being retained in the chambers or
cups by centrifugal force.
The axles B and B are mounted in the part B° of the head and the axle B³ in
the part B of the head.
The axle B receives upon it the feed wheel B' and the axle B' the feed wheel B,
while the axle B** receives upon it the long sleeve-like extension a20 from the
ratchet wheel B".
The feed wheel B has.a sleeve-like hub B' projecting from it in each direction,
and one end of the hub has fixed to it a pinion B which engages a pinion B¹º, see
Fig. 9, fast on a like sleeve hub of the feed wheel B³.
The pinion B' is engaged by an intermediate pinion B₁, see Fig. 5, supported
on a stud B carried by the part B of the head, the pinion B being driven by a
pinion B, made, as herein shown, as a toothed ring, see Fig. 5, acrewed onto, the
end of the long sleeve a of the wheel B loose on the axle B**.
The ratchet wheel B is toothed at its periphery and also toothed at its inner
side as at c, see Fig. 4, the peripheral teeth being engaged by a suitable pawl B
shown by dotted lines Fig. 4, which acts to prevent retrograde rotation of said
ratchet wheel and also the pinion B
The sleeve a of the ratchet wheel B" is surrounded loosely by a long sleeve-like
pinion C having at its periphery an annular groove to permit the wire w to pass
said pinion, and said pinion is provided with an annular pawl C', made as a ring
having teeth at its side next said ratchet wheel, said pawl being borne by a suitable
spring Cagainst the teeth cat the inner side of the ratchet wheel B", the interior
of the washer shaped pawl being notched, see Fig. 8, to enable it to slide on and yet
be moved by the teeth at the end of the pinion C.
The pinion C is engaged by a toothed rack C, grooved longitudinally opposite
the annular groove of the pinion, said rack being fitted to slide up and down in a
longitudinal groove cut in one side of the hollow spindle B, the rack being connected
in suitable manner, as by screws a, see Fig. 4, with a sleeve c, having at its upper
end, see Fig. 1, a flange 2 which rests on an inwardly projecting flange of a ring 3;

page_text: suitably attached to a ring 4, the two rings when suitably united, as by a screw
thread or otherwise, see Fig. 1, being embraced by and seated loosely in a strap or
yoke C, having gimbal journals which are mounted in like arms of a bell crank.
lever C pivoted at C, upwardly extended arms of said lever having fixed in them
a pin 100 inserted loosely through holes in ears of an eccentric strap C¹³ which.
surrounds a compound or two-part eccentric 5, 6, the part 5, see Fig. 3, being made
preferably as integral with the hub of the non-circular gear D to be described, and
the part 6 as an eccentric ring, the said lever, the ring C and parts actuated thereby
having a definite positive stroke with relation to the horn &, which remains at a:
constant height.
The rings 3 and 4 and the surrounding ring C constitute what in the claim
I designate as a strap or yoke.
The gear D is free to revolve on a stud 7, and has, see Fig. 3, a hole which is
entered by a key 8, said key being adapted to enter either one of the two half
circular holes 10, 12, made in the ring-like outer eccentric 6, when see Fig. 34,
either one of said holes is opposite the half hole in the eccentric 5, the adjustment
of the ring-like eccentric 6 about the eccentric 5 enabling the spindle to be moved
for a greater or less distance, as may be required, the key 8 entering the partial
hole 12, in said eccentric 6 when the stock is thick, and the partial hole 10
when the stock is thin, it having been found advantageous to provide for a
longer or shorter stroke of the spindle to better adapt the machine for thick or
thin work and to increase the number of screws inserted in a given time for
this work.
The ring 4 has at its interior a semispherical seat, see Fig. 1, for a buffer ring b
having a semispherical lower end to rest on said seat, the upper end of the
buffer ring being provided with a suitable leather or other washer b, on
which rests loosely the central part of the main cross-head B instrumental in
sustaining the nose or presser plate and the wire cutting mechanism to be
described.
The cross-head B20 has ears 6 to which by suitable set screws are connected
slide rods,, extended through suitable guides 6, 6, forming part of the
frame-work, and at their lower ends said slide rods have attached to them the
auxiliary cross-head 6, to which in turn is attached the nose or presser plate 21,
which rests upon the stock supported upon a horn in usual manner, said born
and nose plate being a known contrivance.
A cross-head is shown as having adjustably mounted upon it two standards &".
to the upper ends of which are attached strong spiral springs 6, the lower ends of
said springs being shown as attached to cars of the lever e, said springs normally
acting to keep the presser plate & seated on the stock and hold the cross-head
toward the buffer ring referred to.
The cross-head B, see Fig. 1, has at its interior a semispherical seat 14, which
receives and supports a semi-spherical projection 15 on a box 16, the latter serving
as an additional bearing for the spindle B, the upper end of said box 16 being
enlarged to form a cup 16x to contain a suitable supply of oil.
The spindle B, above the box 16, has fixed to it à collar , best shown in Fig. 1,
it having at its underside a suitable lip or projection to enter a notch in a ring &
which rests loosely on a suitable shoulder of the box 16, said collar and ring being
thus gimbal jointed one with relation to the other.
The spindle B is made in two parts screwed together, at 66, see Fig. 1, and at
the junction of said parts I have added a ring 20 which contacts with the lower end
of and keeps the box 16 up against the ring b.
The spindle B, above the collar is cut to form or is provided with a long pinion 21,
which engages the teeth of a gear d made fast to a pínion d' mounted loosely on a
stud d suitably connected to the frame-work.
The pinion d' engages a gear d', which is thus rotated continuously with the
spindle B.
Just below the centre of rotation of the gear is a non-circular gear d', see

page_text: Fig. 3, which engages the non-circular gear D, and between the non-circular
gear and the gear d there is provided a clutch mechanism, which, when it is
desired to start the process of nailing, may be made to couple the gear d' with
the gear d³, and which may be moved to release the gear d from the gear d³ when
it is desired to stop the process of nailing to remove a shoe, or for other purposes.
The clutch device, as herein shown, consists essentially of a bolt d² free to slide
in a suitable hole in the hub of the non-circular gear d, a suitable spring, see
Fig. 7, acting normally to move said bolt in the direction to cause it to engage the
continuously rotating gear d' above it, said bolt entering one or another of a series
of holes in said gear, see Fig. 2, where a part of said gear is shown.
The hub of the gear d is quite long and surrounds a fixed stud do, and at its
lower end, see Fig. 2, said hub has a suitable cam d", to be hereinafter described,
which serves to impart motion to the shoe feeding mechanism.
The bolt a has a projection d, with which cooperates a clutch releasing
device under the control of a suitable treadle, not shown, located at the floor,
said treadle having connected to it a rod d, partially shown in Fig. 2, which is
extended up through a hole in the column A, and is connected at 102 to one arm
of an elbow lever d pivoted at do on the frame-work, said lever having a third
upwardly extended arm d", preferably forked, as shown by dotted lines in Fig. 2,
to engage an arm ds of the clutch actuator, herein shown as a three-armed lever or
rocker, mounted on and so as to turn loosely about a vertical stud d", said lever or
rocker having other arms or projections d¹, d, see Fig. 3.
The arm of the actuator, see Fig. 3, has pivoted on it an arresting device d",
it having its inner or acting end provided with a hook or projection to engage the
corner of a block 4 fast to the non-circular gear d', as in Fig. 3, the parts shown
in said fig. being supposed to be in the position occupied by them when the wire
feeding and spindle reciprocating devices are at rest, the spindle, however, rotating
and revolving the toothed gear d from which the bolt d is withdrawn.
When the machine is at rest, as described, a spring d, connected to said
arresting device d³, acts to keep the latter in the position shown, and also to hold
the clutch actuator in such position that the releasing device d" serves to depress
the bolt d against spring do.
Now, if the workman desires to start the machine in operation to insert
fastenings, he will put his foot upon said treadle and turn the clutch actuator
about stud d so as to remove the releasing device laterally from contact with the
said bolt, letting the spring d act to move the bolt and project the same from the
hub of the non-circular gear d' into one of a series of holes in the continuously
rotating gear d, and at the same time the arresting device is moved from
engagement with the block d
When the process of nailing is to be stopped the operator will remove his foot
from the treadle and let the spring d referred to, act and move the releasing
device toward the said bolt, so as to present the inclined part thereof, see
detail Fig. 7, in the line of movement of the projection dox of the bolt d', as the
latter travels with the gear d', thus withdrawing said bolt from engagement with
the gear d³.
The non-circular gear d engages and drives the non-circular gear D before
referred to having the compound eccentries 5, 6.
These gears are made non-circular or shaped substantially as shown, in order
that the spindle B, when being moved downwardly, may travel at a uniform
speed, the speed being adjusted to the pitch of the threads on the wire w,-and
also that the spindle may be returned quickly or make its upward stroke quickly
at a variable speed.
If the movement of the lever C' was produced by a crank or eccentric actuated
by a shaft revolving at a uniform speed, the strap or yoke and its connected rack
would have a variable rate of descent as the crank travelled toward its so-called
dead-centre which is objectionable.
..In order to complete with ease the rotation of the peculiar non-circular gears in

page_text: either direction of rotation, the genr d' is provided at its underside with a tooth d
shown by dotted lines Fig. 3, which engages a tooth 24 of similar shape at the
upper side of the non-circular gear D.
The position of the compound eccentric 6. shown, is right for the long stroke of
the machine; for the short stroke the part 6 of the compound eccentric must be
turned half way around, and the pinion d must be changed for a larger one, which
necessitates another position for the stud d in the frame A, and for this change a
second hole d is provided, see Fig. 2.
The gear D is provided with a cam projection 25, which at each rotation of said
gear, strikes a wing 26 at the upper end of a rod 27, shown separately in Fig. 6, it
having multiple threaded portions 28 and 30, or portion provided with two or
more screw threads of long pitch to facilitate quick action of the threads with a
long throw of the parts moved thereby and with but little rotation of said rod.
The threaded part 28 enters a suitable threaded bearing 29 fixed in the,
frame-work, and the threaded part 30 engages a screw-thread in a rack-block 31.
As the rod 27 is rocked, it is moved quickly vertically in its bearings, and at the
same time the threaded part 30, in engagement with the rack-block 31 lifts the
latter quickly so that its external teeth in engagement with the toothed arms 32 of
the rocking levers 33, see Figs. 1 and 2, move said levers quickly about the
studs 34 upon which they are mounted, said studs being sustained in suitable ears
of the auxiliary cross-head ", before referred to.
Suitable ears of the rocking levels 33 receive removable pivots 36, on which are
mounted carriers 37 which receive and hold the shanks of the cutters or chisels 38,
which act to cut off the wire close to the surface of the stock after said wire shall
have been screwed into the stock and through the same to the horn, said cutters or
chisels being free to slide in diagonal holes made in the nose plate & resting, as
described, on the stock.
As before stated, the upper or main cross-head B is kept seated when the
nose-plate is off the work, but in a yielding manner, upon the buffer ring and during
the descent of the spindle as the latter is being moved down by the elbow lever C
as soon as the nose plate meets the stock resting on the horn, the further descent
of the cross-head B20 is arrested, but the elbow lever C' continues to move and in
its further movement depresses or lowers the sleeve C having the rack-bar C, and
causes the latter, in engagement with the pinion C, to rotate the wire feeding
wheels grasping the wire between them, causing said wheels to feed the wire out
from the head into the stock below the nose plate.
The foot lift D', the sleeve D' to which it is attached the stud D3 on which it is
adjustable vertically, the sole feeding bar m free to be slid back and forth in a
rocking block mounted on an arm D, said feeding bar being moved forward to
engage the edge of the sole by a cam finger h of a depending leg or link pivoted
on the lever for moving the spindle up and down, are and may be all substantially
as in the Specification of Letters Patent, No. 3788, granted to the said Stillman
Williams Robinson and dated the 3rd of March 1891.
In this present invention the feeding movement of the bar m is effected by the
cam projection d', before referred to, moving in unison with the non-circular
gear d', it acting, see Fig. 2, on a projection t of an arm t¹ fast on a rock shaft,
having at its lower end a finger , which as the shaft is moved to push the
finger against the feed bar m, effects the feeding movement thereof, a spring
connected to said feed-bar, see Fig. 2, and to a fixed part of the frame, see Fig. 1,
restoring said feed bar to its starting point against a stop t*.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
In machinery for inserting screw threaded wire in boot manufacture and for
other uses
1. The use, in such a machine, of a rotatable spindle provided with a two-part

page_text: head, feeding wheels mounted in said head, and a spring acting on one part of said
head to hold its feed wheel in a yielding manner toward the feed wheel of the
other part of said head, substantially as described.
2. The use of the rotatable spindle, its feed wheels, a shaft having a gear
wheel and a ratchet wheel, a wheel surrounding said shaft and provided with an
annular pawl to engage said ratchet wheel, and a rack to move said shaft and pawl,
substantially as described.
3. The use of means to support the work; a wire-carrying spindle supported
Dear its upper end in a bearing, and provided below said bearing with a fixed
collar; a bearing to sustain said collar; a cross-head to sustain said bearing, a lever,
a strap or yoke movable thereby through a definite stroke to reciprocate said
cross-head to lift said bearing and spindle, and means to rotate said spindle,
substantially as described.
4. The use in a machine for inserting screw-threaded wire, of a rotatable
spindle provided with wire feeding devices, and having an attached ring, a box
supporting said ring, a collar fixed to said spindle, and a cross-head having a seat
to support said box loosely, substantially as described.
5. The use of cutter carrying levers having arms provided with toothed sectors,
a threaded block engaged by said sectors, and an upright shaft having a quick thread
to engage said block, substantially as described.
6. The use of cutter carrying levers having arms provided with toothed sectors,
a threaded block engaged by said sectors, an upright shaft having a quick thread
to engage said block, and having a second threaded part above it, a threaded box
for said second threaded part, and means to rotate said shaft, substantially as
described.
7. The use of cutter carrying levers having arms provided with toothed sectors,
a threaded block engaged by said sectors, an upright rod having a quick thread
to engage said block, and with means to raise said rod, substantially as
described.
8. The use of the rotating spindle, wire feeding mechanism carried thereby, the
sleeve C, the strap or yoke embracing the said sleeve, the lever C, the non-
circular gears D and d, and devices intermediate the said gear D and the said
lever, to move the latter, substantially as described.
9. The use in a machine of the class described of the non-circular gears
employed in feeding the wire, the revolving spindle and intermediate actuating
devices, and clutch mechanism, as described, for stopping and starting the process
of nailing while the spindle continues its rotation, substantially as described.
10. The use in a machine of the class described, of the rotating wire-carrying
spindle and feed wheels, and bearings screwed into the head of the spindle and
having deep chambers for the reception of the axles of the feed wheels, said
bearings retaining oil and keeping the feed wheel axles lubricated, substantially
.as described.
11. The use in a machine of the class described, of the wire-carrying spindle,
the lever to actuate it, connections between said lever and said spindle, the
eccentric strap connected to said lever, an adjustable two-part eccentric, a non-
circular gear to which said eccentric is attached, and gearing between said
non-circular gear and said spindle whereby the stroke of the spindle may be varied,
substantially as described.
12. The use of the wire-carrying spindle, the box 16, the sleeve C, a strap or
yoke to sustain said sleeve, wire-feeding mechanism supported on said spindle,
devices between said sleeve and said feed mechanism to actuate the latter, the
lever C jointed to said strap or yoke, the cross-head B to sustain said box, the
connected nose-plate, and devices to move said lever and impart to said sleeve a
definite positive stroke, substantially as described.
13. The use in a nailing machine for uniting soles to uppers with screw wire
having threads of uniform pitch, of a revolving spindle having wire feeding
mechanism, non-circular gears, and mechanism actuated thereby to feed the wire
2

page_text: at a uniform rate, and to then make the return stroke of the feeding mechanism
quickly, substantially as described.
14. The use in a screw-wire nailing machine for fastening soles to uppers, of a
work-supporting born of constant height; a revolving wire-carrying spindle
supported on a cross-head connected to a nose-piece and adapted to be arrested as
the nose-plate meets the stock on the horn, wire-feeding mechanism, a strap or
yoke supporting said cross-head when the latter is not resting by its nose-piece on
the stock, mechanism connected with the said strap or yoke to impart to it a
definite constant stroke, and devices between the strap or yoke and the said wire
feeding mechanism, substantially as described.
15. The use of means to support the work, a wire-carrying spindle, a connected
ring, a bearing to support said ring, a cross-head to sustain said bearing, a strap
or yoke to sustain said cross-head, a sleeve connected to said strap or yoke;
a lever to move said strap or yoke, wire feeding mechanism, and devices inter-
mediate said strap or yoke, and wire feeding mechanism to actuate the latter more
or less during the descent of said strap or yoke according to the thickness of the
stock, substantially as described.
16. The use of the rotating wire conveying spindle and its attached ring, the
box 16, the strap Cs, its attaching lever, the two-part ring 2, 4, the buffer ring,
and the cross-head to sustain said box and spindle, substantially as described.
17. The use in a machine of the class described, of the gear d having a hub, an
eccentric ring surrounding said hub, an eccentric strap surrounding said ring, and a
pin to hold said ring in one of two positions on said hub, substantially as described.
18. The use of the spindle and its attached pulley having a flaring opening at
its upper side, the covering plate extending across the upper side of the coil of
wire, and devices to counect portions of said covering plate to the said pulley, said
parts being arranged to present the open centre of the coil of wire about the wire
passage in the spindle, substantially as described.
19. The use of the spindle and its attached pulley having a flaring opening at its
upper side, and a wire-holder having upper and lower annular retaining plates to
hold the wire and connected to the said pulley, and to present the open centre of
the coil of wire about the wire passage in the spindle, substantially as described.
20. The construction, or arrangement, and combination of parts of such a
machine so that in use they shall co-operate together to screw the end of a wire
into the stock, or work, (such as the leather of a sole in boot work) cut off the end
of said wire to produce a fastening, each fastening being made of just the proper
length for the thickness of the stock at the point where the same is to be united,
variations in length of fastening being automatically determined all substantially
as and for the purposes set forth in the foregoing description and shewn by the
accompanying drawings.
ord day
WM. BROOKES & SON,
55 and 56 Chancery Lane, London, Agents for the Applicant.