Improvements in Nailing Machines for Use in the Manufacture of Boots and Shoes.
Year: 1899

page_text: [Communicated from abroad by FREEBORN FAIRFIELD RAYMOND, 2d of Newton,
in the County of Middlesex and State of Massachusetts, United States of
America, Gentleman].
Improvements in Nailing Machines for Use in the Manufacture of
Boots and Shoes.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:
This invention relates to a machine particularly adapted for attaching heel
blanks and toplifts to the soles of boots and shoes and it involves a construction
which simplifies the manufacture of the machine and at the same time quickens
its operation.
The details of the said invention are illustrated in the accompanying drawings,
in which:
Figure 1 is a front elevation of a machine having the features of my invention.
Figure 2 is a view in vertical central section taken from front to rear of the
machine.
Figure 3 is a detail view partly in plan illustrating the toplift spanking plate
and carrier for operating, the same.
Figure 4 is a view of the toplift spanking plate
to show the top lift holder upon its under side.
on an enlarged scale inverted
The machine as illustrated in the drawings is organized to blind nail a heel,
that is, to first attach the main part of the heel by nails driven through it, the
heads of which are left projecting, and to then spank on to the attached heel and
projecting nails, the top lift. In the operation of the machine the shoe inverted
is placed upon the shoe support and is then moved with the shoe support under
the perforated template through which the nails are driven, the heel is placed
upon the heel end of the shoe, and upon starting the machine the nail carrier
which has been filled with nails is immediately moved forward to feed the nails
to the holes in the template and remains stationary in this position during the
descent of the drivers to drive the nails from the holes of the carrier and from
the template into and through the heel. Simultaneously with this movement
of the nan carrier the last or work support with the shoe and the heel are moved
upward against the template to compress the heel between the support and the
template, and the heel is held so compressed during the driving of the attaching
nails. The last or support with the shoe and attached heel is then moved down-
ward removing the heel from the template, the drivers are moved upward, the
nail carrier moved backward and a spanker plate carrying the top lift moved
aterally into position between the template and the heel blank. The last or
work support with the shoe and attached heel is again moved upward, this time,
however, against the spanker plate instead of the template, and the top lift is
hen attached to the heel. The last or work support with the shoe and attached
heel and toplift are then moved downward from the spanker plate, the spanker
Price Rd1

page_text: plate moved laterally to one side of the template, when the machine stops with
the drivers still in an elevated position and the nail carrier in a position to be
supplied with nails for the next heel to be attached. The last or work support
is then moved forward and the completed shoe removed from it.
A denotes the cross-head. It has a downward extending projection a in which
is a cross dove-tail a¹ to receive a dove-tailed tongue 2 on a driving heel block a³;
a represents the gang of drivers. The head A is vertically movable in the
guides as a bolted to the frame A¹. B is the main shaft of the machine. It is
connected by pinions with the crank gears Figure on the shaft b2 Figure 2.
Each gear
has a crank pin 63 and the crank pins are connected with the cross-
head A by connecting rods 6. The shaft 62 is supported by suitable bearing or
pillow blocks, and is provided with a pressure cam C; c is a vertically sliding
pressure head having an extensible or adjustable top c¹ and an anti-friction roll ca
which bears on the pressure cam C.
D is the jack, d is the spindle carried thereby, which when the jack is in
position rests upon the pressure head and thereby supports the last or work
support d. E is the templet plate; it is adjustable or removable from the
table e Figure 1. E¹ is the nail carrier; e¹ is the nail carrier slide to which the
nail carrier is secured. The slide has a cam pin e² entering a cam groove e³ in
the came on the vertical shaft e". F is a top lift spanking plate; it has secured
upon its under surface a top lift holding device comprising the breast holders f, fl
and the back holder f Figure 4. This spanking plate is at the forward end
of a lever f3 which is pivoted at f, and is provided with a cam pin fo entering a
cam groove f in a cam disc f upon the vertical shaft e Figure 3. The vertical,
shaft e makes one revolution for every reciprocation of the cross-head A.
The vertical shaft e is shown particularly in Figure 2, and is connected with
the shaft 2 by means of a gear e upon the shaft e and which gear meshes with
one of the gears 6 and is of the same size. The shaft e7 is provided with the
bevelled gear e which engages with and is of the same size as the bevelled gear e9
at the lower end of the vertical shaft e³, consequently the shaft c' and the vertical
shaft are given the same rate of rotation as the shaft 62, and the cams e³, f",
and C rotate at the same speed.
The presser cam C makes one revolution for every reciprocation of the cross
head A. The start and stop mechanism may be arranged to stop the machine
after each reciprocation of the cross-head and preferably when the head is about
a third of its stroke down. Any other equivalent start and stop motion mechanism
may be employed. The head A is given sufficient extent of stroke or movement
to provide sufficient time for the movement of the nail carrier E¹ into and out
of operative position. The pressure cam C is timed or constructed first upon the
starting of the machine to immediately move the pressure head and therefore
the last or work support upward to forcibly or otherwise compress the boot or
shoe heel or other work it carries against the under surface of the templet E and
this movement is completed before the nails are caused to be driven into the heel
or work.
+1;
The cam then holds the pressure head, last and work in this position during
the driving of the nails, and then immediately permits the quick downward
movement or descent or fall of the pressure head and work, this downward move-
ment of the pressure head being facilitated by the springs C Figure 1. This
downward movement is immediately followed by another quick movement without
rest, upward movement and downward movement, there being no appreciable
rest between the last upward and downward movements, and the machine then
stops. It will be seen that the first downward second upward and downward
movements take place during the movement of the cross-head from its lowest
position to just beyond its highest position when at rest. Upon the first down-
ward movement of the pressure head and work the top lift spanking plate F
carrying the top lift, if it is desired to blind nail the top lift is moved rapidly
into position from one side of the boot or shoe or work support over it, the cam f

page_text: being constructed to provide for the movement of the plate or its equivalent and
also to hold it there for an instant during the second upward movement of the
pressure head and work until the pressure head and work have fallen slightly
or sufficiently to permit the reverse movement of the top lift spanking plate and
its return to its original position. The top lifts may be placed in the top lift
holder by hand, or automatically fed thereto by a feed plate moved by hand. The
nail carrier E is immediately moved forward upon the starting of the machine
and comes into position to deliver its nails to the holes of the templet before the
drivers enter its holes, and upon the upward movement of the cross-head
immediately after the ends of the drivers clear or leave its holes its operating
cam moves it backward to a position to be filled with nails, the nails are pre-
ferably fed to it by any automatic nail distributing and feeding devices.
The cross-head A is moved downward upon the starting of the machine, the
drivers entering the holes of the nail carrier and templet, driving the nails into
the work and then upward to its highest position, and then slightly downward
when the machine comes to rest. By giving the cross-head A sufficient throw,
and by mounting the pressure cam C upon the crank shaft, and by constructing
it as described, and by giving the vertical shaft e5 one movement for every recipro-
cation of the cross-head, I am enabled to employ cams which will permit the
parts to be moved as above specified, and to obtain very easy cams, and to well
apply the power from the driving shaft, and to very much simplify the con-
struction of the machine. It will be understood of course that in this machine
the heel blank or the work is not pricked, but for certain classes of work it is
not necessary that the heel blank or work be previously pricked. Of course this
mechanism can be used for any kind of work to which gang nailing is applicable.
It will thus be seen that the machine herein described embraces in the com-
plete mechanism means so combined and operated that by one revolution of a
shaft the heel blank is compressed, the attaching nails driven, the top lift fed
and attached and the parts separated to permit the removal of the finished boot
or show from the machine.
It will further be noticed that to accomplish this result it is necesary that the
last or work support, templet or pressure plate and drivers should be, when the
machine is at rest, held separated from each other to permit the shoe to be placed
upon the last and the heel to be placed between the shoe and the templet; and
also to permit the nails, unless they have been previously placed in the heel blank,
to be fed to the templet.
Upon the starting of the machine its first action is to compress the heel blank
between the last or work support and templet or pressure plate, and the intro-
duction of the top lift holding and spanking plate or top lift spanking plate
between them; and this, in turn, is followed by another compressing action
between the last or work support and templet; and this again is followed by the
separation of these two parts, so that during the complete action of the machine,
or in other words, during the rotation of the actuating shaft one engagement
of the templet with the drivers and two engagements or impacts between the last
or work support and the templet have taken place.
This organization is especially valuable in heel nailing machines, because it
simplifies the construction of such machines and increases their capacity.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is:-
1. In a heel nailing machine, a reciprocating cross-head carrying heel attach-
ing devices, a templet or pressure plate, a last or work support, a cam on the
crank shaft for giving the latter two impacts and periods of separation during
one revolution of the shaft, and a top lift plate and mechanism for moving it
between the templet or pressure head and the work when separated, substantially
as described.

page_text: 2. In a heel nailing machine, a reciprocating cross-head carrying a gang of
drivers, a templet or pressure plate, a last or work support, a cam on the crank
shaft for giving the latter two impacts and periods of separation during one
revolution of the shaft and a top lift plate having top lift holding devices and
mechanism for bringing it between the templet or pressure head and the work,
when separated, substantially as described.
3. In a heel attaching machine, a reciprocating cross-head carrying heel
attaching devices, a templet or pressure plate, a nail carrier, a last or work sup-
port, a cam on the crank shaft for giving the latter two impacts and periods of
separation during one revolution of the shaft, a top lift carrier, and mechanism
for moving it between the templet or pressure head and the work when separated,
substantially as described.
4. The combination in a nailing machine, of a reciprocating cross-head A, a
gang of drivers carried thereby, the shaft B, the pinions thereon, the shaft 62,
the gears 6 carried thereby to mesh with the said pinions, the crank pins 63 on
the gears 61, the rods 6 connecting the cross-head with the crank pins, the
templet, the last or work support, carried upon a vertically movable spindle d.
a vertically movable pressure head on which said spindle rests, a cam C upon the
shaft constructed to impart two forcing movements to the pressure head,
jack spindle and last support for each full rotation, the shaft es, the nail carrier
slide e, the nail carrier E, the operating cam e as and for the purposes described.
5. The combination in a nailing machine, of a reciprocating head A, a gang
of drivers carried thereby, the shaft B, pinions carried thereby, the cam shaft 2,
the gears carried thereby to mesh with the said pinions, the pressure cam C,
constructed as specified carried by the shaft 62, crank pins 63 on the gears b¹,
the rods connecting the crank pins with the cross-head, the pressure head c
actuated by the cam C, the jack having a slide spindle to rest upon the pressure
head and bearing a last or work support, the templet, a spanker plate with or
without a top lift holder, its lever f³, an operating cam upon the vertical shaft e³,
the nail carrier E¹, its operating cam et, all combined to operate as and for
the purposes described.
6. In a heel nailing machine, a reciprocating cross-head carrying nail driving
devices, a templet or pressure plate, a last or work support and a crank shaft
connected to the cross-head for imparting to it a single reciprocation, and a cam
on the crank shaft for imparting it to the last or work support two impacts
during the reciprocation of the cross-head, as set forth.
7. In a heel nailing machine, in combination with a templet or pressure plate,
a gang of nail driving devices on one side thereof and means for imparting one
reciprocation thereof towards and from said templet, and a last or work support
on the opposite side of said templet, and means for moving said last or work
support towards and from the templet or pressure plate twice during the said
single reciprocation of the gang of nail driving devices, all as set forth.
8. In a heel nailing machine, in combination with a stationary templet or
pressure plate, a gang of nail driving devices on one side thereof, and means for
imparting thereto a single reciprocation towards and from said templet, and a
last or work support on the opposite side of said templet and means for moving
said last or work support towards and from the templet or pressure plate twice
during the said single reciprocation of the nail driving devices, all as set forth.
9. In a heel nailing machine, the combination of a templet or pressure plate,
a gang of nail driving devices on one side thereof, means for imparting thereto
a single reciprocation towards and from said templet, a top lift spanker on the
opposite side of said templet and means for moving it into and out of operative
position, a last or work support also upon the opposite side of said templet, and
means for moving said last or work-support towards the templet in advance of
the driving of the nails, and for holding it stationary during the driving of the
nails, and for moving it from the templet or pressure plate after the driving of the
nails and for then moving it towards and from the top lift spanker, all during

page_text: a single reciprocation of the nail driving devices, as and for the purposes set
forth.
10. In a heel nailing machine, in combination with a templet or pressure plate,
a gang of nail driving devices on one side thereof and means for imparting thereto
one reciprocation towards and from said templet, a top lift spanker on the opposite
side of said templet, means for moving it into and out of operative position, and a
cam for supporting said last or work support constructed to move said last or
work support towards the templet or pressure plate in advance of the driving
of the nails and to hold it stationary during the driving of the nails, and to then
permit the movement of the last or work support from the templet, and to then
move the last or work support to the top lift spanker and permit its movement
from the spanker all in one reciprocation of the nail driving devices, as set forth.
Dated this 9th day of May 1899.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.