Improvements in Nailing-machines Chiefly Designed for Use in the Manufacture of Boots and Shoes.
Year: 1897

page_text: Date of Application, 25th May, 1897-Accepted, 24th July, 1897
Improvements in Nailing-machines Chiefly Designed for Use in
the Manufacture of Boots and Shoes.
I, WILLIAM GODDU, of Winchester, Massachusetts, United States of America,
Mechanic, 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 relates to a machine for driving loose nails. My present invention
has for its object to provide a machine more especially designed and adapted, among
other uses, to be employed for nailing welts to the upper and inner sole.
In accordance with this invention, the machine is provided with a driver for the
nails, carried by a movable or swinging frame, which pivotally supported by а
main casing or frame, which is itself adapted to turn or swing on the driver-carrying
frame to effect a proper and substantially uniform spacing of the nails driven into
the welt or other work, the said frames turning or swinging one on the other
alternately, as will be hereinafter more fully described.
The movable driver-carrying frame has co-operating with it a raceway for the loose
nails, and a hopper, from which the raceway leads to a nose piece or driver guideway,
between which and the end of the raceway is interposed a separator for the nails,
which separator is pivotally attached to the swinging main frame and is adapted to be
automatically operated as will be described.
The main casing or frame, the driver, and the separator are and may be operated,
in a manner as will be described, by means of suitable cams, mounted on a shaft
which is power driven, the said driver being moved in one direction by one of the
said cams, and being moved in an opposite direction by a spring or other suitable
medium. The hopper containing the loose nails may and preferably will be mounted.
upon the raceway to rotate thereon, and is rotated from the main shaft of the power-
operated movable nailer. The movable main frame for the machine, may have
secured to or forming part of it, a presser foot, preferably provided with a guide
for the welt, which is to be laid upon and fastened to the shoe, and the said frame
may be further provided with a guide or gage, to ensure the welt being laid and
fastened to the upper at a uniforin distance from the side or edge of the shoe in
a manner as will be described. The complete apparatus is portable and is adapted
to be held in one hand of the operator and guided about a shoe secured on a suitable
support. as will be described.
These and other features of this invention will be pointed out in the claim at the
end of this specification.
Fig. 1 is a front elevation of a nailing machine embodying this invention, the
upper portion of the cover or front plate for the main frame being broken away to more
clearly show the driver and its supporting frame.
Figs. 2 and 3, sectional details of cams to be referred to.
Fig. 4, a vertical longitudinal section of the apparatus shown in Fig. 1 on the

page_text: .
Fig. 5, a detail in perspective of the driver-carrying frame broken away.
Fig.
a detail in elevation of the separator to be referred to.
Fig. 7, a section of the separator shown in Fig. 6 on the line 7-7 looking in the
direction of the arrow thereon.
Fig. 8, a section on the line 8-8, Fig. 6.
Fig. 9, a sectional detail of the raceway taken about on the line 9-9, Fig. 4.
Fig. 10, a sectional detail of the raceway taken on the line 10-10, Fig. 4, and
Figs. 11 and 12, details to be referred to.
In accordance with this invention, the main operating parts in my improved
instrument, are supported or carried by what I prefer to designate as the main
.framework of the instrument, which framework in the present instance, consists
essentially of an enclosing hollow casing A, provided with a removable front
piece or cover A¹, and having extended from the rear side of the upper end
thereof, as hereinshown, a tubular hub A². The main or shank portion of the casing
A is preferably bulged on its sides 5, 6, (see Fig. 1) to afford a more convenient
hold for the hand of the operator. The main framework or casing A contains
within it a swinging frame or carrier A³, for a reciprocating driver bar A+. The
carrier A³, as hereinshown, (see Fig. 5) consists essentially of a hub or cylindrical
body a, from which extends a guideway for the lower portion of the driver bar A',
the said guideway consisting as hereinshown of side pieces a¹ a connected by a
back piece a³, the said side pieces being secured to the hub a, so that the guideway
for the driver bar may be located eccentric to or on one side of the centre of the
said hub, with the front face of the side pieces al a² substantially flush with the front
end of the hub a.
The hub a is provided with a cylindrical extension or sleeve a', which fits within
the hub A and an extension a* thereof of smaller diameter as hereinshown, the
sleeve a constituting a pivot upon which the main frame A swings or turns. The
hub of the driver-carrying frame is provided, as hereinshown, with a slot or
opening a, in line with the guideway for the lower end of the driver bar A', and
the upper portion of the main framework or enclosing casing. is also provided with
a slot or channel a constituting a continuation of the slot in the hub a.
The driver bar A4, in accordance with this invention, is provided at its lower end
with a driving tool and preferably with an awl or holding tool a', which are secured
to the lower end of the driver bar and are adapted to reciprocate in suitable guideways,
channels or slots in a guide or nose piece a, located below and in line with the
driver bar A, and supported in the present instance by a raceway a' for the nails.
The nose piece or guide a is herein shown as provided with a bottom flange or
finger a, extended under the front end of the raceway a and secured thereto by a
screw 12. The raceway a" is firmly secured to the driver-bar-carrying frame As so
as to move bodily with it, and the said raceway may be secured to the said frame as
herein shown by means of a split or forked arm a¹³, through which the said raceway
is extended and clamped thereto by a suitable screw ".
The front end of the raceway a and the inner side of the nose piece a* are made
substantially flat or straight, and separated from each other to leave a space into
which may extend a knife or separator a¹5, preferably of the construction herein-
shown and as will be more specifically described.
The separator or knife as is secured to or forms part of an arm or lever a¹6 (see
dotted lines, Fig. 1) extended upward within the casing or frame A and within a
longitudinal slot in the side a¹ of the driver-carrying frame, and the said lever at its
upper portion is curved to conform to the shape of the hub a, and the curved portion
of the lever fits into a peripheral slot a¹50 (see Fig. 5) in the hub a, and extends
upward beyond the said hub into a slot a100 in the main frame or casing A, where it
is pivotally secured as by a pivot pin or screw bolt a. The main casing or frame A
is provided on the opposite side of the driver-carrying frame A³, with a like slot a¹8
into which is extended the upper end of a lever, link or bar a¹0 pivoted to the casing
A by a pin or screw bolt a", the said lever being also provided as hereinshown, with
a curved portion, which fits into a peripheral slot a²l in the hub a, and the said lever

page_text: is pivotally connected at its lower end to the driver-carrying frame A³. In the present
instance, this pivotal connection is effected by providing the rear side of the driver-
carrying frame with a socket a" (see dotted lines Fig. 1), into which fits the rounded
lower end of the lever 1.
31
The levers a¹¹, as hereinshown, are respectively provided with nubs or pro-
jections a, a, located on their inner side, and the said nubs or projections are
normally extended through the peripheral slots 10, 21 by means of suitable springs
a28, 29 having one end secured to the casing A on its outside as by screws a³,
the lower ends of the said springs projecting into and through suitable slots in the
sides of the casing A in line with the levers a 19. The levers a10, a' are adapted to
be moved in opposition to the springs a, a, for a purpose as will be described, by
suitably shaped cans (32 33 secured to or forming part of a shaft b constituting the
main or driving shaft of the apparatus and having bearings in the sleeve a'.
The driving shaft b is further provided with a lifting cam 61 for the driver bar A',
which latter is provided as hereinshown with a transverse slot or opening b², of a
length substantially equal to the diameter of the hub ; and the lifting cam b¹ is
made, as hereinshown, in the form of a curved projection or lug secured to or forming
part of the front face of the can a", which curved lug or projection is designed to be
brought into contact with the upper wall of the slot to lift the driver bar A+ and
to retain it in its lifted position for a purpose as will be described.
The driver bar may be returned to its lowered or normal position by suitable
means, hereinshown as a spring 63 engaging the upper surface of the driver bar and
having its opposite end secured to the frame A in a suitable manner, the said spring
being shown as a single piece of wire bent to form a U-shaped front portion, which
engages a transverse groove 65 in the upper end or head 60 of the driver bar A',
which head in the present instance normally rests on the upper surface of the main
casing A and serves as a stop to limit the downward movement of the said driver
bar, the said head being provided with a washer 100 to cushion the blow.
The spring 63 in the present instance, has its opposite ends secured in suitable
ears or lungs bob on the opposite sides of the hub A2 of the main frame A.
The main or driving shaft b may be rotated as hereinshown, and for this purpose,
it has fast on it, a hub 68 having as hereinshown a hollow extension or sleeve 6º,
which fits over the extension ax of the hub A2, and the sleeve 9 has secured to or
forming part of it, a pulley 10 constituting a driving pulley for the nailing instru-
ment, and about which is passed a belt 12 connected to a suitable pulley on a main or
counter shaft, not hereinshown, but which in practice, is located above the said instru-
ment. The hub & in the present instance, is rendered fast on the shaft b by a pin. 13:
and has secured to or forming part of it a gear or pinion 14, which meshes with a gear,
or pinion 15 secured to or formning part of a hopper 610, which may be of any suitable
or desired construction, and which is shown in the present instance as a cylinder pro-
vided with a hollow extension or hub 617, of circular internal diameter to fit over and
revolve upon the cylindrical raceway a, which latter practically forms a stationary
shaft or arbor for the revolving hopper.
The hollow extension or hub 617 also serves as a cover for the greater portion of the
length of the slot 18 in the raceway, and co-operates with and preferably abuts against
the forked arm a¹³, with which co-operates a rearwardly extended finger 610 attached
to the upper end of the nose piece or guide a, to form a complete cover for the slot in
the raceway 18 along its entire length from the hopper to the said nose piece. The
slot 18 may be of any suitable shape and depth according to the size of the nail used;
and that portion of the slot within the hopper 66 may and preferably will be enlarged
transversely for the more ready entrance of the nails into the slot, which enlargement
may be effected by beveling the sides of the slot 618 as at 620, 621 (see Fig. 10), which.
beveled sides gradually decrease in size toward the discharge end or outlet of the
hopper as represented in Fig. 4. The hopper 616 may be provided with a detachable
cover b, hereinshown as secured to the hopper by a screw 623 extended into the end
of the raceway . The main casing A may be provided with a flange extended
from its rear side as shown in. Fig. 4, so as to form a rest for the hand of the operator..

page_text: The main frame A may also have pivotally attached to it a finger lever pivoted
as at 60 (see Figs. 1 and 4) and having attached to it a rod 627, which in practice is
designed to be suitably connected to a friction or clutch mechanism, not hereinshown,
but which governs the shaft to which the shaft b is connected by the belt 61, so that
rotation of the shaft b may be controlled as desired by the operator using the instru-
ment hereinshown.
The main frame A may and preferably will have secured to it, a presser foot c pro-
vided with a longitudinal slot c¹ (see Figs. 1 and 4), and the said presser foot at its
heel or rear portion may be provided with a slot or opening c², forming a guideway
for the passage of the welt, not hereinshown.
In order that the instrument may be guided about the edge of the shoe at a uniform
distance from its sides, so that the welt may be properly laid, the said instrument is
provided with a guide or gage, which may and preferably will be made as hereinshown,
the said gage consisting of a roller c' loosely secured to an arm c' hereinshown as
fastened by a screw co to the frame A.
In practice, the boot or shoe to be operated upon, may be held in a lasting machine
or other support, and the power-driven loose nailer hereinshown, travels about the
edge of the stationary shoe, with what may be termed a progressive, intermittent or
step or step movement, and during these successive movements, the operating parts are
alternately stationary and movable with relation to the main frame A, and vice versa.
That is, when the driver-carrying bar A is in its lowered position shown in Figs. 1
and 4, the driver a has just finished the insertion of a nail into the welt, and the
awl or holding tool a at such time is in the work, and consequently holds stationary
the driver-carrying bar A+, its oscillating frame A3 and the parts attached to the said
oscillating frame, and while these parts are held temporarily stationary by the holding
tool or awl a', the main frame A is turned on the hub a' of the oscillating frame A³
as a center, by the cam a33 until the side 5 of the frame A is brought in contact with
the side a of the frame A³, which movement places the frame A in the desired or
proper position to permit of the desired or proper spacing of the nails in the welt;
and at or about the same time, the separator lever is moved so as to uncover the slot
in the raceway; and also at or about the time the frame A is thus moved, the aw! is
withdrawn from the material and the driver-carrying frame A³ is thus rendered free
to be moved or turned on its pivot, until the side a¹ strikes the side 6 of the frame A,
and when the frame A³ is brought into the position just described, the driver bar
descends and drives the nail into the stock, and at the same time, the awl or holding tool
is driven into the material or welt and thereby again renders stationary, the driver-
carrying bar A, and its frame A', as above described.
As shown in Fig. 1, the cam shaft may be supposed to be revolving in the direction
indicated by the arrow 20, and as represented in said figure, the cam a" has just
engaged the nub or projection a2 on the separator lever and has moved the said
lever backward so as to partially uncover the end of the slot in the raceway; and
while the awl is still in the welt, the cam a33 is brought into engagement with the
nub a on the lever a¹, and by reason of the fact that the frame A³ is held stationary
by the awl, the fulcrum of the lever a" is transferred to the socket a², thereby
leaving the upper end of the said lever free to respond to the action of the cam 33,
which forces the lever a backward or toward the right, viewing Fig. 1, and
consequently turns the main frame A on the sleeve or hub ' as a pivot, the slot a"
being of sufficient width to permit of such movement of the lever a" and frame A.
As the outer frame A is turned on its pivot, its lower end is moved forward until its
side 5 strikes the side a² of the frame A³, and at such time, the main frame is held
stationary by the operator engaging the presser foot firmly with the welt.
When the lower portion of the main frame A is moved forward or in the direction
indicated by the arrow 40, Fig. 1, the side 6 of the frame A is carried away from the
side a¹ of the driver-carrying frame A³, thereby leaving space for a further movement
of the separator lever a¹0 by the cam a32, which movement of the separator lever is
in the direction of the arrow 40, and by which movement, the separator is drawn
back to wholly uncover the end of the slot in the raceway.

page_text: The cam shaft b continues to revolve, and brings the lifting cam 61 into engagement
with the upper wall of the slot 6, and on the continued rotation of the cam shaft in
the direction indicated by arrow 20, Fig. 1, the driver bar is moved upward and
withdraws the driving tool a sufficiently from its slot in the nose piece, to permit
the separator to carry the nail partially projecting from the raceway, toward and into
the driver slot in the nose a³, which movement of the separator is effected by the
spring a turning the lever a" on its pivot a", after the cam a has been carried by
or removed from engagement with the nub or projection a" on the said lever.
At or about the time the cam a³ is removed from engagement with the nub or
projection on the separator lever, the cam 33 is removed from engagement with
the nub or projection a" on the lever a", which action permits the spring a29 to turn
the driver-bar-carrying frame A³ on the shaft b as a pivot, (the awl being at such time
out of the work) and move its lower end toward the side 6 of the frame A, which
movement is in an opposite direction to that of the separator lever.
In order to more effectually transfer the nail from the raceway into the driver slot
in the nose a', I prefer to make the separator in the form of a thin blade having a
top flange 12 beveled as at 13 to a point, and to provide the said blade with the
front edge 16, which is beveled and inclined backward from its pointed upper edge as
clearly shown in Figs. 6, 7 and 8, the flange 12 being extended into a transverse slot
or channel in the rear face of the nose piece a", when the separator is moved by its
spring 28 to transfer the nail from the raceway into the driver slot.
The flange 12 may and preferably will be provided with a recess or slot 17, which
co-operates with the driver slot and affords a free passage for the driver tool o, when
the separator is in the position it occupies when the nail is driven.
The movement of the driver-carrying frame in the direction indicated by the
arrow 40, which is effected by the spring a", places the nose a containing the nail
above the welt in the desired or proper position for driving, and at or about the time
the nose is thus positioned, the driver-lifting cam is carried away or removed from
engagement with the upper wall of the slot b² in the driver bar, thereby leaving the
latter free to be moved with considerable force by the spring 63 downward in its
frame A³, and drive the nail through the welt and into the inner sole of the shoe.
This completes the series of movement, which are repeated in the subsequent
operations of driving the nails, until the power-driven hand nailer has traveled around
the shoe the desired distance to properly lay and secure the welt onto the upper and
inner sole.
During the operation of nailing the welt onto the shoe, the hopper 6 is revolved
by the gears 14, 615, and in practice, the said hopper may be provided with any
suitable devices such as buckets, not shown, by which the loose nails may be carried
up above and discharged into the enlarged portion of the raceway, and the said nails
may be properly placed in the slot in the raceway and prevented from passing down
the same when not in proper position, by means of a hub 20 located on the innerside
of the hopper and provided with inclined notches forming teeth d² or in any other
suitable manner.
I have hereinshown the welt guide as a part of the presser foot, but I do not desire
to limit my invention in this respect, as the said welt guide may be carried by the
raceway.
During the progressive operations of the nailing instrument hereinshown, the said
instrument is merely steadied, directed or followed by the hand of the operator.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is :-
1. A nailing machine comprising a driver, a driver-bar, a swinging-frame in which
said driver-bar is movable longitudinally, a raceway attached to said frame to move
therewith, a nose piece for the driver movable with the said frame and raceway, a
separator to transfer the nails from the raceway into the said nose, a main frame.
mounted to turn on the said driver-bar-carrying frame and in which the said driver-bar-
carrying frame is itself mounted to swing, a cam-shaft adapted to rotate in said

page_text: driver-bar-carrying frame and provided with a lifting cam to act on the driver-bar, a
cam to act on the separator, a cam to act on the main frame, and means to pivotally
connect the said driver-bar-carrying frame with the main frame, substantially as and
for the purpose specified.
2. A nailing machine comprising a movable main frame, a driver-bar-carrying
frame pivotally mounted therein to enable it to move while the main frame is
stationary and to permit the main frame to swing or turn whilethe driver-bar-carrying
frame is held stationary, a driver-bar movable longitudinally in its carrying frame, a
driver attached to said bar, a raceway for the nails attached to the driver-bar-carrying
frame, a nose piece co-operating with the said raceway and provided with a slot or
passage in which the driver moves, a separator co-operating with said raceway and
nose, and a cam shaft provided with cams to operate the driver-bar and separator,
substantially as described.
3. A nailing machine comprising a swinging frame, a driver-bar-carrying frame
mounted in said main frame to enable it to be moved while the main frame is
stationary and to permit the main frame to be moved while the driver-bar-carrying
frame is held stationary, a driver-bar movable longitudinally in its carrying frame, a
driver attached to said bar, a raceway attached to the driver bar-carrying frame, a
guide for the driver co-operating with the said raceway, a separator pivotally attached
to the said main frame and co-operating with the raceway and driver guide, a
cam-shaft provided with cams to operate said driver bar and separator, a hopper
mounted to revolve on said raceway, and gearing to connect the said hopper with the
cam-shaft, substantially as and for the purpose specified.
4. A nailing machine comprising a driver, a driver-bar, a swinging-frame in which
said driver-bar is movable longitudinally, a raceway attached to said frame, a nose or
guide for the driver co-operating with said raceway, a swinging main frame
supporting said driver-bar and its carrying frame and movable independently of the
driver-bar-carrying frame, a separator co-operating with said raceway and driver
guide and pivotally attached to the said main frame, a cam-shaft provided with a
lifting cam for the driver-bar and with a cam to act on the said separator in opposition
to the said cams, substantially as described.
5. A nailing machine comprising a swinging main frame A provided with a
removable cover, a swinging frame A³ mounted to turn or swing within the frame A,
a driver-bar carried by the frane A, and inovable longitudinally therein, a lever or
bar pivotally attached to said main frame and driver-bar-carrying frame, a raceway
for the nails attached to the driver-bar-carrying frame, a nose piece or guide for the
driver movable with the driver-bar-carrying frame and co-operating with the said
raceway, a separator co-operating with said raceway and nose piece, a lever pivotted
to said main frame and to which the said separator is attached, a cam-shaft provided
with a lifting cam for the driver-bar, a cam to act on the separator lever, a cam to
act on the lever or bar connecting the driver-bar-carrying frame with the said main
frame, and means to act in opposition to said cams, substantially as described.
6. A nailing-machine comprising a reciprocating driver-bar, a swinging frame in
which said driver-bar reciprocates, a swinging main frame in which the driver
bar-carrying frame turns, means to connect the said main frame with the driver-bar-
carrying frame, a raceway movable with the driver-bar-carrying frame, a separator to
remove the nails from said raceway, and means to effect the operations of the said
parts, substantially as described.
7. A nailing machine comprising a reciprocating driver bar, a swinging frame in
which said driver bar reciprocates, a main frame adapted to be grasped by the hand
of the operator and in which the driver-bar-carrying frame is mounted to turn, a
raceway movable with the driver-bar-carrying frame, a separator to remove the nails
from the raceway, a lever or link to connect the main frame with the driver-bar-
carrying frame, a shaft provided with cams to effect the movement of the said
separator, driver-bar, and main frame, and means to effect the movement of the
separator and driver-bar in an opposite direction from that in which they are moved
by the said cams, and means to act on the driver-bar-carrying frame and move it,
substantially as described.

page_text: 8. A nailing machine comprising a main frame adapted to be grasped by the hand
of the operator, a driver-bar carrying frame mounted to swing or turn in the said
main frame, a link or lever to pivotally connect the main fraine with the driving-
bar-carrying. frame whereby the said main frame may be turned when the
driver-bar-carrying frame is held stationary and whereby the driver-bar-carrying
frame may turn in the main frame when the latter is held stationary, and means to
alternately effect the movements of the said frames in the same direction, substantially
as described.
9. A nailing machine comprising a main frame adapted to be grasped by the hand
of the operator, a driver-bar-carrying frame mounted to swing or turn in the said
main frame, a link or lever to pivotally connect the main frame with the driver-bar-
carrying frame whereby the said frame may be turned when the driver-bar-carrying
frame is held stationary and whereby the driver-bar-carrying frame may turn in the
main frame when the latter is held stationary, and means to alternately effect the
movements of the said frames in the same direction, a raceway movable with
the driver-bar-carrying frame, a separator co-operating with the said raceway and
movable in opposite directions to uncover and cover the said raceway, and means to
effect the movements of the separator in opposite directions, substantially as
described.
10. A nailing machine comprising a swinging frame, a driver-bar-carrying frame
mounted to turn in said frame a raceway attached to the driver-bar-carrying frame,
a hopper mounted on the said raceway to turn thereon, a main shaft carried by the
said main frame, and gearing to connect the main shaft with the rotatable hopper,
substantially as described.
11. A nailing machine comprising a swinging frame, a driver-bar-carrying frame
mounted to turn in said main frame and provided with a guideway for the driver-bar
located eccentric to the center on which the said driver-bar-carrying frame turns, a
slot in the main frame in line with the guideway in the driver-bar-carrying frame,
a driver-bar reciprocating in said guideway and slot and provided with a driving tool
and with a holding tool or awl, a raceway for the nails attached to the driver-bar-
carrying frame to move therein, a nose piece provided with passageways for the said
driver tool and awl and attached to the raceway to leave a space between the same, a
separator movable in said space, a lever to which the said separator is attached pivoted
to the main frame, a link or har pivotally connecting the main frame with the driver
bar-carrying frame, a cam shaft provided with a cam to lift the driver-bar, a second
cam to act on the separator lever, a third cam to act on the link connecting the
driver-bar-carrying frame with the main frame, and springs to act in opposition to
the said cams, substantially as and for the purpose specified.
12. A nailing machine comprising a swinging driver-bar-carrying frame, a
swinging main frame pivotally supporting said driver-bar-carrying frame and itself
pivoted on said driver-bar-carrying frame, and means to effect alternate movements
of the said frames one on the other and in the same direction, substantially as
described.
13. A nailing machine comprising a swinging-driver-bar-carrying frame, a swinging
main frame pivotally supporting said driver-carrying frame and itself pivoted on said
driver-bar-carrying frame, a separator lever pivoted to the swinging main frame
between it and the driver-bar-carrying frame, a driver-bar, and a single cam-shaft
provided with cams to effect. movements of the said frames and separator lever all in
the same direction, substantially as described.
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.