Improvements in Nailing and Lasting Machines for Shoes.
Year: 1895

page_text: Date of Application, 6th Dec., 1895
Complete Specification Loft 7th Sent 1806 Accented
7th Nov
1806
PROVISIONAL SPECIFICATION.
Improvements in Nailing and Lasting Machines for Shoes.
I WILLIAM HENRY DORMAN, of The Hawthorns, Newport Road, Stafford,
in the County of Stafford, Engineer, do hereby declare the nature of this invention
to be as follows:-
My invention is for improvements in machines for putting nails of various sizes
into shoes, from hob nails to lasting tingles or tacks and consists of the following
features, that is to say:-
In an improved method of bringing the nail or tack to its work.
The tacks are put into a hopper and pass from it down a shoot. At the
termination of the shoot is placed a reciprocating nail carrier consisting of an arm
which makes a semirevolution about a pivot and each time takes a nail from the
end of the shoot and carries it round until it is just under the hammer.
There are suitable shutters actuated at the suitable times which respectively
shut up the end of the shoot when the carrier leaves it and shut the nail into the
carrier.
When the nail arrives underneath the hammer the carrier stops and the hammer
which is magnetized descends close to the head of the nail and attracts it to
itself and immediately rises again lifting the adhering nail clear out of the carrier
which at once returns to fetch another nail.
As soon as the carrier is out of the way the hammer descends with the nail and
drives it into the shoe which is held in a suitable position below.
It also consists in the use of various gauges for determining the positions of the
shoe while in the machine :-
An edge gauge against which the edge of the boot rests. This edge may some-
times be the edge of the sole or sometimes the corner formed where the upper
overlaps the insole or again it may be the feather of the boot or even the edge
of the top-piece.
This edge gauge overlies the edge so as to form a ledge against which the boot
can be pressed upwards and has a face more or less at right angles to the ledge
against which the boot may be pressed sideways, and is made of different shapes,
and adjustable in different directions, to suit the various kinds of work to be done-
and is sometimes used fixed and sometimes is allowed to slide in and out under the
control of a spring and is locked fast just before and during the time the upper
is being pulled up (if the boot is being lasted) and the nail is being put in.
A gauge is also used against which the side of the boot rests, this gauge is on a
slide and under the control of a spring and is locked at the necessary times.
A gauge is occasionally used that takes into the channel on the insole, and assists
in guiding the work. Also a gauge that takes on to the surface of the sole or
insole and assists in determining the angle at which the boot is presented to the
machine.
These gauges are adjustable and may be used fixed, or with a slight duly timed
lifting movement to facilitate the movement of the shoe. The surface gauge is
sometimes required to have in addition an up and down movement governed by a
spring and which is locked at the requisite times.
The gauges are not all necessarily employed at one time, but are made use of as
occasion may require, to suit the various kinds of work to be done.
The boot is carried upon a frame commonly known as a "jack" of which there
are many varieties in use.

page_text: It also consists in the jack supported upon a post which rests in a cup and ball
joint upon a lever, by means of which the boot is held up against the gauges
above mentioned with such a degree of force as may be desired and by means of
which it may be readily disengaged when the operation is completed.
The "jack" sometimes has a slight up and down movement, or at least the boot
is periodically released from pressure against the gauges, so that its movement
may be facilitated.
It also consists in the use, in conjunction with the above, of a pair of mechanical
pincers, actuated by the machine, which lay hold of and draw the upper over
the last.
The pincers are adapted to grip different thicknesses of material and to exert a
degree of drawing strain upon the upper variable at pleasure.
The action of the pincers in drawing the upper slightly over the last exercises
a considerable force and in order to resist this and relieve the operator of the
necessity of pressing heavily against the boot, in order to hold it up against the
drag of the pincers a locking bar is connected to the "jack" or "jack post" by a
universal joint and passes through a cup and ball joint mounted in the column on
which the machine stands.
The locking bar attached in this manner offers no opposition to the free move-
ment of the boot at the will of the operator.
But the "cup and ball" joint in the column is split and subject to an automatic
action, such that during the time the pincers are acting the locking bar is clamped
fast in the column and the boot is held immoveably in whatever position the
operator may have put it at the time. The locking bar is locked just as the
pincers are going to begin to operate, and is not released until the pincers have
drawn up the upper and the tack is put in and the pincers have let go again.
Having explained in outline the principal features of my invention, I will now
describe how it may be practically carried out and for this purpose will first
describe a lasting machine with my improvements.
The machine is constructed with a vertical standard or column upon which is a
head frame carrying in its upper part a horizontal main shaft provided with a pair
of friction cone pulleys one running loose upon the shaft and driven by a belt and
the other being fast upon the shaft. The two cones are held apart by means of a
spring and are pressed into engagement by a wedge actuated by a treadle or hand
lever when it is desired to start the machine.
To ensure prompt stopping of the machine a brake is provided actuated by the
starting and stopping gear in such a way that it comes into action when the friction
cones are released and is taken off again when the cones are pressed into engage-
ment. A cam may be arranged in connection with the before mentioned wedge
to determine the place at which the machine shall stop when the treadle is
released.
Another method of driving is by means of a clutch operated by a treadle and
which is automatically thrown out of gear by a cam so as to stop the machine after
each revolution.
At the front end of the main shaft is a cam for the purpose of operating a
vertical tack driving bar called a hammer which is magnetized at the lower end
and is guided in vertical bearings provided in the head frame. The can is of such
a shape that it gives to the fully raised hammer first a short descending movement
to the tack head then a rising movement to its full height by which it lifts up the
tack out of the tack carrier then a descending movement to its full depth by which
it drives the tack into the boot upper while the tack carrier is swung aside for it
to pass then a rising movement to its full height to allow the tack carrier to return
again with another tack.
The engagement between the hammer and the cam is made by means of a cam
roller and stud the position of which is adjustable vertically upon the bar so that
the lower end of the same may be adjusted relatively to the tack carrier.
The tacks are supplied to the tack carrier from a revolving cylindrical box (fed

page_text: by a hopper) which by means of scoops lifts the tacks and lets the n fall on to an
inclined shoot down which they slide, the shanks being guided between the two
sides placed sufficiently close together and the under side of the heads lying upon
the upper edges of the sides of the shoot. The points are therefore downwards
and a cover is provided to prevent the rear tacks rising over the front ones.
This
cover is so constructed as to be easily removable. The revolving tack cylinler is
driven by a band or gear wheels from the main shaft. A rapper may be provided
upon the cylinder also operated from the main shaft by a cam or star wheel or a
slight up and down movement may be communicated to the shoot in a similar
manner to agitate the tacks sufficiently to ensure their sliding down in which
case the shoot may be pivotted at its lower end near the tack carrier.
The tack carrier consists of an arm mounted like a crank upon a short vertical
shaft so that it may be turned through a half revolution in a horizontal plane.
This may be done by means of a cam upon the main shaft actuating a horizontal
lever fast upon the upper end of a vertical shaft which is provided at its lower end
with a toothed quadrant engaging a pinion upon the short vertical shaft which
carries the tack carrier.
In order that the tacks may be taken by the carrier one at a time from the
end of the shoot a vertical notch is formed in the vertical curved face of the
carrier where the shoot end and carrier meet and when this notch is presented
exactly opposite the line of tacks in the shoot the lowermost tack slides forward
into this notch so that the shank of the tack just fills the notch and the carrier
is then moved around with the tack until the latter comes under the hammer.
If left to itself the tack would fall out of this notch as soon as the carrier was
clear of the shoot end to prevent which another arm loose upon the carrier shaft
is provided the turned up end of which forms a shutter which lies by spring
pressure against the side of the shoot until the carrier and tack have left the shoot
end and entered the shutter when a striker upon the carrier comes into operation
and carries the second arm round until the tack is vertically under the raised
hammer which then descends and by virtue of its magnetism attracts the tack
which is then lifted by the ascending hammer vertically out of the carrier as already
described.
A divider may be arranged to move in like a knife between the bottom tack in
the shoot and the next one so as to separate them and bring the bottom tack to a
truly vertical position in the notch above named before the carrier moves away.
This divider may be operated by a cam and lever from the main shaft.
For the purpose of sealing the open end of the shoot while the tack carrier is
away yet another shutter arm is provided also loose upon the carrier shaft and
having an end exactly like the carrier end but without the vertical notch. This
arm lies against the carrier on the opposite side to the arm before mentioned and
when the carrier moves away with a tack the arm follows it moved by spring
pressure into the place just vacated by the carrier and shuts the end of the shoot
until pushed away again by the returning tack carrier.
In order that the boot may be properly presented relatively to the hammer and
other parts an edge gauge is provided which has a horizontal hollow or notch
against which the edge or corner where the upper turns over on the insole may
be pressed by the operator and which furnishes a guide for him in feeding along
the boot. This gauge is adjustable in a vertical and also in a horizontal direction
to and from the operator.
In certain classes of work a channel is provided in the insole and when this is
the case it may be convenient to use a channel gauge which is formed in such a
manner as to enter the channel and act as a guide to the operator in manipulating
the boot.
Another gauge which allows of regulating the inclination at which the sole is
held is furnished below the first one and is provided with a spring which bears it
forward against the side of the boot. This spring yields when the operator presses
upon the boot and the gauge is locked fast by the machine just previously to the

page_text: driving of each tack which locking is accomplished by providing the gauge with a
rack and pinion and ratchet wheel engaged by a pawl which is released by a cam
provided on the main shaft for the purpose.
To pull the upper over on to the insole pincers are provided and actuated by
the machine as follows:-
A horizontal cross shaft is provided at the front of the machine just behind or
in front of the hammer and revolved by suitable gearing, such as mitre wheels and
a vertical shaft, from the main shaft. Upon this shaft are provided two cams one
for opening and closing the pincer jaws upon the upper and the other for pulling
the upper over the insole.
The pincers hang down by one member just in front of the hammer either from
the cross shaft or a pivot near it and the other member of the pincers is engaged
by the pincer closing cam by an intervening roller.
The other or pulling over cam actuates a bell crank or lever conveniently pivotted
and pulls by means of a link or other connection upon the pincers when closed
upon the upper by the first cam.
Springs keep the rolls in contact with the cams and the amount of pull and of
closing of the jaws are capable of adjustment by screws or other means.
If desired the pincers may be constructed so that they can be swung through
an angle in an approximately horizontal direction for the purpose of putting draft
into the upper. The operator being provided with a knee lever or handle to
control the amount of the angular pull.
If the machine is intended to use either of two lengths of tack at will two
cylinders and shoots are employed the same being arranged so that the operator
can slide them across the machine so as to bring either shoot opposite the tack
carrier. This can be done by means of a handle and pinion engaging a rack upon
the frame which carries the cylindrical tack boxes and providing a locking
spring catch to retain the same in position which can be released by a push
button.
To prevent the tacks running out of the end of the shoot when removed from
opposite the carrier a horizontal flat sided bar is provided against which the end
of the shoot slides and by which its open end is sealed. This bar is a fixture and
bas a narrow cross slot in it for the passage of the tacks just where the carrier
operates and a hollow is formed in the one side of the bar having the same
radius of curvature as the carrier end so that the latter can enter and leave
properly.
The boot and last are carried upon a jack and may be balanced by a counter-
poise or spring the pressure of which is adjustable. The jack can be raised and
lowered by a treadle or by hand and is so constructed as to allow of the required
movements of the boot.
.
In order that the pulling action of the pincers may not have to be resisted by
the operator a horizontal rod is jointed to the "jack" by a ball and socket joint
and is led through a split ball socketed in the pillar or frame of the machine.
This socket is also split and just previous to the pulling action of the pincers a
cam upon the main shaft through the intervention of a bell crank and toggle or
other convenient arrangement locks both socket and ball upon the rod so as
to prevent movement of the "jack" until the pulling movement of the pincers
has come to an end.
If the machine is intended to be used for driving nails into soles or top pieces
either for attaching the same to the boot or for the purpose of increasing the
wearing properties thereof the "jack" may sometimes be used or a horn may be
substituted or when necessary, as with heels, a stump may be employed.
During the feeding movement of the work, which may be performed by an awl
or otherwise, the "jack" or horn may be drawn down by a cam and ratchet. move-
ment from the main shaft.
The pincers are not required and are therefore dispensed with as may also the
"jack "locking bar..

page_text: The gauges which bear upon the edge of either the sole or top piece to regulate
the distance in from the edge at which the nails shall be driven may be simply
adjustable or may have the horizontal locking movement previously described.
applied to them as may also the gauge that bears upon the surface of the sole to.
which however the movement must be vertical instead of horizontal.
A nose piece which may be split or have spring sides may be employed below.
the nail carrier to ensure the nails being driven upright and in the exact position.
required and this nosepiece may have a horizontal movement given to it to allow
of the movement of the awl.
Datad this 5th day of Docuoushan 1002
I, WILLIAM HENRY DORMAN, of The Green Hall, Stafford, formerly of The
Hawthorns, Newport Road, Stafford, aforesaid, in the County of Stafford, Engineer
do hereby declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
My invention is for improvements in machines for putting nails of various sizes
into shoes, from hobnails to lasting tingles or tacks and consists of the following
features, that is to say :-
In an improved method of bringing the nail or tack to its work.
The tacks are put into a hopper and pass from it down a shoot. At the termina-
tion of the shoot is placed a reciprocating nail carrier consisting of an arm which
makes a semirevolution about a pivot and each time takes a nail from the end of
the shoot and carries it round until it is just under the hammer.
There are suitable shutters actuated at the suitable times which respectively
shut up the end of the shoot when the carrier leaves it and shut the nail into the-
carrier.
When the nail arrives underneath the hammer the carrier stops and the hammer-
which is magnetized descends close to the head of the nail which is attracted to it
and immediately rises again lifting the adhering nail clear out of the carrier which
at once returns to fetch another nail.
As soon as the carrier is out of the way the hammer descends with the nail and
drives it into the shoe which is held in a suitable position below.
1 employ various gauges for determining the position of the shoe while in the
machine:-
An edge gauge against which the edge of the boot rests. This edge may some-
times be the edge of the sole or sometimes the corner formed where the upper
overlaps the insole or again it may be the "feather" of the boot or even the edge
of the " top-piece."
This edge gauge overlies the edge so as to form a ledge against which the boot
can be pressed upwards and has a face more or less at right angles to it against
which the boot may be pressed sideways, and is made of different shapes and is.
adjustable in different directions to suit the different kinds of work to be done.
It is sometimes used fixed and sometimes is allowed to slide in and out under the
control of a spring and is locked fast just before and during the time the upper is
being pulled up (if the boot is being lasted) and the nail is being put in.
A gauge is also used against which the side of the boot rests. This gauge is.
on a slide and under the control of a spring and is locked at the necessary
times.

page_text: A gauge
is occasionally used that takes into the channel on the insole and assists
in guiding the work also a gauge that takes on to the surface of the sole or insole
and assists in determining the angle at which the boot is presented to the machine.
These gauges are adjustable and may be used fixed or with a slight duly timed
lifting movement to facilitate the movement of the shoe.
The surface gauge is sometimes required to have in addition an up and down
movement governed by a spring and which is locked at the requisite times.
The gauges are not all necessarily employed at one time but are made use of as
occasion may require to suit the various kinds of work to be done.
The boot is carried upon a frame commonly known as a "jack" of which there
are many varieties in use.
The "jack" is supported upon a post which rests in a "hook" joint upon a
treadle or lever by means of which the boot is held up against the gauges above
mentioned with such a degree of force as may be desired and by means of which it
may be readily disengaged when the operation is completed.
The jack sometimes has a slight up and down movement or at least the boot is
periodically released from pressure against the gauges so that its movement may be
facilitated.
My invention also consists in conjunction with the above of a pair of mechanical
pincers actuated by the machine which is used to lay hold of and draw the upper
over the last.
The pincers are adapted to grip different thinknesses of material and to exert a
degree of drawing strain upon the upper variable at pleasure.
The action of the pincers in drawing the upper over the last exercises a consider-
able force and in order to resist this and so relieve the operator of the necessity of
pressing heavily against the boot I provide a locking bar which is connected to
the jack or jack post by a "hook" joint and passes through a cup and ball mounted
in the column on which the machine stands. The locking bar offers no opposition
to the free movement of the boot at the will of the operator.
But the cup and the ball in the column are split and subject to an automatic
action such that during the time the pincers are acting the locking bar is clamped
fast in the column and the boot is held immoveably in whatever position the
operator may have put it at the time.
The locking bar is locked just as the pincers are going to begin to operate and
is not released until the pincers have drawn up the upper and the tack is put in and
the pincers have let go again.
Having now explained in outline the principal features of my invention I will
describe how it may be practically carried out and for this purpose will first describe
a lasting machine having my improvements.
In the accompanying drawings
Fig. 1. is a side view of a lasting machine constructed in accordance with my
present invention.
Fig. 2. is a front view of the same machine.
Fig. 3. is an enlarged side view and Fig. 4. a front view of a portion of the same
machine shewing the gauges and the jack locking arrangement.
Fig. 5. is an enlarged side view and Fig. 6. a front view of a portion of the same
machine shewing the arrangement of the hopper and tack carrier.
Fig. 7. shews one method of constructing the pincers.
Fig. 8. shews an arrangement in which a presser foot is employed.
Fig. 9. is an enlarged horizontal section through the column of Figs. 1. and 2.
on the line A. B. shewing the split cup and ball.
Fig. 10. is an elevation and Fig. 11. a plan much enlarged of the nail carrier in
position for receiving a tack from the shoot.
Fig. 12. is an elevation and Fig. 13. a plan of the same with the nail carrier in
position for delivering a tack to the hammer.
Fig. 14. shews the vertical notch in the end of the carrier arm.
Fig. 15. is a side view and Fig. 16 a front view of the upper portion of a

page_text: somewhat differently constructed machine provided also with two cylinders so that
either of two lengths of tack may be used at will.
Fig. 17. is a front view of the form of pincers shewn in Fig. 15. and as removed
from Fig. 16.
Fig. 18. is a plan shewing the stopping bar and carrier and having the nail-shoot
in line for delivery.
Fig. 19. is the same with the carrier in another position and having the nail
shoot removed from the line of delivery.
Fig. 20. is an elevation and Fig. 21. a plan shewing the divider.
Fig. 22. is an elevation and Fig. 23 a plan shewing the seat gauge.
Fig. 24. is a side view partly in section of a hob nailing machine-head.
Fig. 25. is a front view of the same with portions removed.
Fig. 26. is a detail of the nose piece.
The machine (Figs. 1 to 6) is constructed with a column a and head frame a¹ in
which is a shaft a suitably driven in a well known manner by a pulley a³, the
shaft a being started by a treadle a* and stopped by a cam a² and brake at when the
treadle a is released.
I mount upon the shaft a² a cam b which operates a magnetized hammer b' by
raising the same through the intervention of a roll 6 and an adjustable pin b
against the resistance of a spring carried in a box 6 upon the frame a', which
spring by its recoil drives down the hammer 'when released by a step 6 formed
in the cam b. The cam has also a dip 7 formed in its edge which allows the
hammer to descend a little for the purpose of attracting a suitably presented
nail to itself with which it rises preparatory to its driving descent. The hammer b¹
slides up and down in guides provided in the frame a¹ and an adjustable
pad 610 limits its descent.
The tacks are placed by the operator in a hopper c communicating with a
revolving cylindrical box c¹ which is driven round by a band c² from a pulley c³ on
the shaft a and is provided with scoops which lift the tacks in a well known
manner and drop them on an inclined shoot down which they slide the points
being downward and the heads prevented from rising by a cover c³.
To receive the tacks from the shoot c and suitably present them one at a
time to the magnetized hammer b', I provide a tack carrier (see also Figs. 10 to 14)
consisting of an arm & mounted on a pivot d in the frame a¹ and operated by a
cam d² which through a roll d³ and pin d actuates a lever d' and vertical shaft de
carried in the bearings d d in the frame a¹. The vertical shaft de carries a
toothed quadrant d' which gears (sometimes through an intermediate gear) into a
pinion upon the pivot d' so as to oscillate the arm d through a half revolution
in a horizontal plane.
A vertical notch d" (Fig. 14) is formed in the vertical curved face of the arm d
to receive the tack and when this notch is presented exactly opposite to the line of
tacks in the shoot the lowermost tack slides forward into it so that the shank of
the tack just fills it and the arm d is then moved around, by the operation of the
machine, with the tack until the latter comes under the hammer b¹.
To prevent the tack falling out of the notch I provide another arm d¹ which
is loose upon the pivot d' and has a shutter da formed upon it which lies against
the side of the shoot being held by the pressure of a spring d until the arm d
and tack have left the sboot end and entered the shutter di³ when a striker d' upon
the arm d comes into operation and carries the second arm d round with the
shutter d until the tack is vertically under the raised hammer 6' which then
descends owing to the operation of the dip 6' and by virtue of its magnetism
attracts the tack which is then lifted by the ascending hammer vertically out of
the carrier.
I may arrange a divider e (Figs. 20 and 21) to move in between the bottom tack
in the shoot and the next one so as to separate them and bring the bottom tack
truly vertical and ensure its being in its proper position in the notch d¹¹ before the

page_text: arm a moves away. This divider e may be operated by a came and revere from
the shaft a².
For the purpose of sealing the open end of the shoot c while the arm d is away
I provide another shutter arm falso loose upon the pivot d¹ and having an end like
the arm d but without the vertical notch d. The arm flies against the arm d on
the opposite side to the arm 12 and when the arm d moves away the arm f follows
it, moved by the pressure of the spring into the place just vacated by the arm d
and shuts the end of the shoot c until pushed away again by the returning arm d.
So that the boot may be properly presented relatively to the hammer &¹ and
other parts provide an edge gauge which has a horizontal notch g' against
which the edge or corner where the upper turns over on the insole may be pressed
by the operator and which furnishes a guide for him in feeding along the boot.
This gauge g may be used fixed and made adjustable vertically and horizontally
or it may be mounted upon a slide 92 carried in the frame a' and held forward by a
spring being retained in any position to which the operator may have pushed it
while manipulating the boot, by a ratchet wheel g' and pawl o connected by a
pinion 9 and rack g' with the slide g² the pawl being unlocked at suitable times by
the operation of the machine the arrangement somewhat resembling that described
in the Specification of a former Patent granted to me No. 11437 A.D. 1895.
I may provide also a gauge h which is similarly mounted and operated having a
spring which bears it forward against the upper, yielding when the operator
presses upon the boot, the gauge being locked by the machine previously to the
driving of each tack, and if desired before the gripping movement of the pincers
(hereinafter described) takes place, by the operation of a cam which is mounted
on the shaft a² and acts on a roll and lever mounted on a pivot in the frame a¹
the lever being jointed to a rod which carries an arm h engaging a lever h³
mounted on a shaft h in the frame a¹ the shaft / also carrying a pawl 10 which
engages the teeth of a ratchet wheel ". The ratchet wheel his mounted on a
shaft 2 also carried in the frame a¹ and having mounted upon it a pinion h¹³
gearing in a rack upon the slide 15 which is free to move in the frame a¹ and
carries the gauge h. The movement of the surface gauge is precisely similar but
is in a vertical instead of a horizontal direction and is not illustrated.
One form of surface gauge which is used in going round the seat of the heel is
illustrated in Figs. 22 and 23. It is mounted beneath the portion a' of the frame on
a pivot pand stands when in use in the position p' being held against the stop p² by
the spring p. When turned horizontally, so as to be out of use, into the position p
it lies against the stop p. The tacks are driven through the hole po and the shoe is
held up under the hollow p' against the teeth p³. The handle p' is for turning the
gauge into or out of position.
When it is desired to give to any of the gauges a slight duly timed lifting
movement to facilitate the movement of the shoe the arrangement is the same in
principle as that described in the Specification of a former Patent granted to
C. F. Gardner, No. 2591, A.D. 1885 and therein illustrated in Figs. 2-3 and 15 for
giving a movement to "the horn N."
To pull the upper over on to the insole I provide pincers actuated by the
machine, and in one form (as shewn in Figs. 15 and 17) constructed as follows:-
A shaft i is carried in the frame a' and operates through gears i a shaft i
which is also carried in the frame a' and carries a cam which operates at the
proper time between the arms of the pincers so as to open the jaws 10 about
the pivot which jaws are afterwards closed upon the edge of the upper by the
spring. The pivot 1 is carried by an arm 3 which hangs from another pivot i
in the frame a'. A second cam is on the shaft acts upon a roll mounted on
the arm so as to swing the pincers in at the proper times towards the machine
against the tension of a spring 17, which is carried by an arm 18 of the frame a',
and; when released by the cam is, the arm 13 is pulled outwards by the spring i
so as to draw the upper which has been previously gripped by the jaws 10 over
the edge of the last and insole a¹. This arrangement may be reversed and the

page_text: cams made to close and pull on the pincers while the springs open the jaws and
return the pincers after the pull.
Another construction of pincers is that shewn in Fig. 7 in which I provide a
vertical bar which carries at its lower end the lower jaw j¹ of the pincers. and is
retained in place by an upper eye piece 2, mounted on its pivot j³ in the frame a¹,
and by a lower eye piece j. carried by its stem in a slot also in the
frame a¹. A set screw allows of the bar j being set up and down in the eye
pieces and . A face cam ja on the shaft a² acts upon a roll, retained upon the
bar by collars ;10 j¹¹, so as to move the jaw j inwards and a spring j1 serves to
move it outwards.
The upper jaws of the pincers is mounted on a pivot j in the lower jaw j¹ and
is operated by an edge cam 1 which acts on a roll and lever 21 which is
mounted on a pivot 18 in the frame a' and is jointed by a curved bar 15 to a rod 20
and link connected to the pincer lever. The jaw 18 is closed upon the boot
upper by the cam 15 pulling up the rod and the boot upper is pulled over the
last or insole by the spring " acting upon the bar j which movement may be
limited by an adjusting screw 28 against which the bar; takes. A spring j2 opens
the jaw when released by the cam 1
In the form of pincers illustrated in Figs. 1 and 2 the cam
jaws while the spring closes them when released.
opens the pincer
The presser foot illustrated in Fig. 8 and which may be used in lieu of pincers
is for the same purpose as and acts in a similar manner to that described in the
Specification of a former Patent granted to me No. 7494 A.D. 1895.
If the machine is intended to use either of two lengths of tack at will two
cylinders and shoots are employed the arrangement being very similar to that
described in the Specification of a former Patent granted to me No. 18374.
A.D. 1894. The operator by means of a handlek (see Figs. 15 and 16) and
quadrant mounted on a pivot k² in the frame a¹ sliding the rack k³ frame k¹ and
cylinders to the right or left accordingly as he wishes to bring either the one
or the other of the shoots kk into position to supply tacks to the tack
carrier.
To prevent the tacks running out of the ends of the shoots kk when removed
from opposite the carrier I provide a horizontal flat sided bar (Figs. 15. 16. 18
and 19) against which the ends of the shoots slide and by which the open ends of
the shoots are sealed. This bar is a fixture and has a narrow cross slot formed
in it for the passage of the tacks just where the carrier operates and a hollow /2² is
formed in the one side of the bar having the same radius of curvature as the end
of the carrier arm d so that the latter can enter and leave properly. When a
shoot as is placed exactly coinciding with the slot the tacks can pass to
the carrier but in all other positions the shoots k k are sealed by the flat side of
the bar 1.
The boot and last may be carried upon a jack, which may be of any suitable
construction, or may be held to the machine by hand.
In order that the pulling action of the pincers may not have to be resisted by
the operator I provide an arrangement which locks the jack immoveably in any
position in which the operator chooses to place it prior to the action of the pincers
and hammer taking place.
The jack m (Figs. 1 and 2) is mounted on a post m¹ carried by a "hook"
joint m² on a treadle lever m³ which is mounted on a pivot m' in the column a and
the whole is balanced by a weight m³.
The upper portion m³ of the jack m is free to be turned round upon the lower
portion m² and a wheel m³ is provided on the portion m³ and turns with it. The
wheel m gears into a pinion m³ which is mounted on a shaft m10 carried in the
portion m² of the jack and connected by a second "hook" joint m" to a shaft m¹2
(see also Figs. 3. 4 and 9) which passes through a split ball m¹ in the column a.
The split ball m¹³ is carried in a pair of cups the one m¹ being fixed to the
B

page_text: column a and the other m being provided with a stem me which passes out
through the column side and is acted upon by a locking lever m" which is pivoted
on a pin m18 to the column a and drawn inwards by springs m¹ so as to grip fast
the cups mm upon the split ball m¹³ and the ball upon the shaft m¹² so that the
latter can neither revolve, swing nor slide and the jack becomes immoveably fixed.
The jack is unlocked by the action of the cam h² and rod he described in connection
with the gauge h. The rod h is jointed to a lever m20 mounted on a pivot m² in
the column a its end m2 when thrust down by the rod h taking on the locking
lever m and thrusting the same outwards against the resistance of the springs mis
releasing the cups mm and ball m¹³, so as to leave the shaft m¹² free either to
revolve when the jack is revolved, swing when the jack is swung sideways, or slide
when the jack is moved to or from the column.
If the machine is intended to be used for driving nails into soles or top pieces
either for attaching them to the boot or for increasing the wearing properties
thereof the aforesaid or other suitable jack may sometimes be used or a horn or
stump may be employed in any usual manner.
During the feeding movement of the work which may be performed by an awl
in a manner somewhat similar to that described in the Specification of a former
Patent granted to me No. 17407 A.D. 1894 the jack or horn may be drawn down
by a cam and ratchet movement like that described in the Specification of a
former Patent granted to C. F. Gardner No. 2591 A.D. 1885 and already
referred to.
The pincers are dispensed with as may also be the jack locking arrangement.
The gauges which bear upon the edge of either the sole or the top piece to
regulate the distance in from the edge at which the nails shall be driven may
be simply adjustable in an ordinary manner or may have the locking movement
previously described applied to them. Figs. 24, 25 and 26 illustrate the
arrangement.
The shaft a carries the cams n. n¹ the former by the roll n² and spring n³ gives
an up and down or piercing movement to the awl n' which is carried on the arm n
of the slide nº, and the latter n¹ by the roll n' and spring n³ gives a to and fro feeding
movement to the slide n° which is mounted in the main frame a¹ and carries the
aforesaid slide n°. The magnetized hammer b' is operated as before described by
the cam 6 and the cylinder c¹ shoot and nail carrier all operate as already
explained. The magnetized hammer 6' carries down the adhering nail through a
split nose piece o which centres the nail and opens to allow of the passage of the
nail head. The nose piece o being carried upon a lever o¹ which is mounted on a
pivot in the frame a¹ and is operated, so as to move to and fro under
the hammer and away from the advancing awl n³, by the cam o³ upon the
shaft a².
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. The tack or nail carrier arm with its vertical notch, as described.
2. The shutter for retaining the tack within the carrier arm notch, as
described.
3. The shutter for retaining the tacks within the shoot while the carrier arm is
away, as described.
4. The downward and upward movement of the magnetized hammer for the
purpose of attracting and raising the tack out of the carrier, as described.
5. The tack or nail carrier consisting of an arm with a notch to receive the tack
and a shutter to retain the tack in the notch, the two receiving an automatic
reciprocating movement through a portion of a circle for the purpose of supplying
one tack at a time to a magnetized hammer, as described.
6. The automatic arrangement for locking fast the jack, in any position in which

page_text: it may have been placed by the operator, during the time the pincers are operating
and the nail is being driven, as described.
7. The horizontal flat sided bar for retaining the tacks within the shoots when
removed from the carrier, as described.
Dated this 5th day of Contombon 1904
W. H. DORMAN.