Year: 1888

page_text: I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings, in the County of Middlesex do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
Machines similar to the one herein described have been before made. They have
all used tack strips. Such strips have been either of paper with common tacks set
therein or strips made entirely of metal. But these strips all involve expensive
machinery to produce them, and cause more or less difficulty from clogging of the
throat and drive way, besides adding an expense for lasting which might be avoided
by the use of loose tacks. All machines hitherto attempted for driving loose tacks
rapidly have encountered much difficulty in organization the machine herein described
and represented is believed to overcome all obstacles hitherto met, and to be a
thoroughly practical mechanism for feeding and driving loose tacks and for lasting
shoes by their use.
In the accompanying drawings:-
Figure 1 is a side elevation of the machine.
Figure 2 is an elevation of the machine upon the opposite side from that shown
in Figure 1.
Figure 3 is a view partly in section, and partly in elevation of the tack driving
apparatus, and its relation to the tack chute.

page_text: Figure 4 is a vertical section on the line a, a of Figure 1.
Figure 6 is a horizontal section on the line, of Figure 1.
Figure 5 is a section of the tack feeding apparatus, and its relation to the chute
vertical to the section line z, z and transverse to the section shown in Figure 6.
Figure 7 is a portion of the tack feeding apparatus.
Figure S is a perspective section on the line y.y of Figure 3, showing the apparatus
employed for transferring tacks from the chute to beneath the driver.
Figure 9 is a horizontal section on the line y, y of Figure 3.
Figures 10, 11 and 12 are sections showing the apparatus illustrated in Figure 9
in different positions.
Figure 13 is a portion of the transferring apparatus shown in Figure 8.
Figures 14, 15 and 16 are parts of the mechanism drawn to an enlarged scale.
The driving wheel A of Figure 1 and Figure 2 is automatically cluiched with and
unclutched from the driving shaft by means of the following described mechanism.
F, Figures 2 and 6, is a hollow cone so attached to the lever that it cannot turn
about its axis, but is free to slide on the main shaft so as to engage with the corre-
sponding cone J, which is attached to the main shaft; these parts, namely, F and J³,
form a braking clutch and work automatically when the driving pulley A is not thrown
back on to its driving clutch. The interior part of the driving clutch is made fast
to the shaft and engages with its corresponding part formed in the pulley A.
driving pulley A has attached to it the break clutch F and has within itself
the exterior part of the driving clutch it may be understood that movements of the
pulley A longitudinally on its shaft will operate both clutching mechanisms; that is,
if you move it to the left see Figure 2 it will be disengaged from its driving clutch
on the right and will cause an engagement of the braking clutch F so as to stop the
macliine.
As the
A cam having a groove E Figure 2, is attached to the main shaft, the groove E
serving to move the lever d' which acting through the lever d operates the lever d³
and acting through arm moves the outside part of the braking clutch F. The
two levers and are connected by the lever d by a latch device formed between
the lever d³ and the end of the lever d This latch lever d may be connected or
disconnected from the lever by the operator when he desires to do so by simply
lifting the shoe, which by moving the nozzle and consequently the lever
the lever which lever is reset to unclutch the wheel A by a cam pin in the cam
groove E.
trips
The friction brake device, serving as part of the stop motion, consists of a hollow
frustum of a cone F on the stationary side, as shown in Figures 5 and 6 and a
frustum J³ on the shaft side, whereby the braking friction is applied to the best
advantage.
The hopper C of Figure 1 contains the bucket wheel J of Figure 6. This bucket
wheel is as shown in Figures 5 and 16, made with two concentric rims j,, which
are united to spokes, which extend from the outer rim j, to the hub of the said
wheel J. These spokes, therefore, divide the annulus between the rim, and the
rim, into cells, for the spokes extend all the way across the annular space. These
cells, therefore, or buckets, are sections of the annulus, and in the revolution of the
wheel J, the tacks lying in the bottom of the hopper C, enter these cells and are
carried up in the cells to or nearly to the top of the hopper C. In order to render
it certain that these tacks shall not spill out in the wrong direction in ascending in
this wheel, a shield K is arranged on the front of the wheel and covers the apparatus
from the bottom of the hopper up to the place where it is desirable for the tacks to
be delivered from the wheel. On arriving at or near the top of the hopper, the tacks
fall out of the buckets of the wheel J into a small hopper k, shown in Figure 6,
which small hopper is really only a pair of inclined deflectors, and lies over the
chute shown in Figure 5, and the tacks falling into the hopper k, points downward,
are guided into the slot in the top of the chute and slide down the chute beneath the
cover towards the point of delivery. The wheel J is mounted on an axle which
passes through a hub in the side of the hopper C, and carries on its exterior a

page_text: gear-wheel J, which is driven by a pinion J2, on the end of a shaft which carries
on its other end a gear-wheel J³, which is driven by a pinion J on the braking
clutch J³.
The brushing disc L, shown in Figure 7, separate, and in Figures 5 and 6 in
position is made as shown in Figure 7; it being a flat dise having a boss or hub in its
centre, and has a rim extending about half round its periphery, the rim being in the
form of a semi-circular wedge as shown, and serves to push back any tack which
may have had its head caught on the cover of the chute. The inner rim of the
wheel J is bevelled towards the front so as to spill the tacks readily at the proper
time and pocket them at other times against the guard K.
Thus it will be seen that tacks are only deposited in the hopper k, when the
machine is employed to feed and drive a tack, the wheel J receiving then a fraction
of a revolution just sufficient to supply a few tacks to the hopper k.
In order to deliver the tacks from the end of the chute 1, to beneath the driver, a
mechanism is employed which is shown in various details in the drawings (Figures 2,9,
10, 11, 12 and 13). The chute ends at or near the point where the tack heads
appear in the drawings Figures 9, 10 and 11. The mechanism referred to consists
of a hinge block M, pivoted to the frame of the machine and thrown into the proper
position by the spring m. This block M terminates towards the driveway of the
machine in a hook m¹, as shown in the drawings (Figures 8 to 13), and this
hook m, when the block M is in line with the frame of the machine serves to check
the forward passage of the tacks by engaging with them. In order, therefore, to
feed a tack forward from the position where the chute ends, it is necessary to displace
this hook.
Referring now to the drawing Figure 1, it will be seen that there
at E a cam
wheel fastened upon the main shaft of the machine, in the groove of which wheel a
cam pin runs, which is oscillated from side to side in following the contour of the
cam. This cam pin e oscillates a rock shaft E' by which motion is conveyed to
another rock shaft E, an arm E, from which rock shaft E carries half way out
towards its outer end a barrel E. bored through from end to end, as shown in
Figure 15, to this arm E' is pivoted at 3, Figure 15 the slide E, best shown in
Figures 8 and 9.
A segmental slot e in this slide E allows the stem e³ to pass
through it; this stem is terminated at its lower edge by a disc, and has a screw cut
upon its upper end and around the upper end of the stem, e, is arranged a spring e,
which is set to the proper tension by driving the nut down upon it and thereby
compressing the spring e, the set screw e passing through the barrel E³ engages its
point in a groove in the stem e, and serves to keep it from turning. Between the
disc of the lower end of the stem e, and the slide E, and between the slide E' and
the bottom of the barrel E³ friction discs are arranged as shown in Figure 15, and
the tension of the spring e gives to these friction discs any desired compression
upon the slide E³.
If now, the machine be set in motion, it is obvious that the barrel E³ will move in
an arc of a circle, and that the pin e³ will also move on the arc of a circle. This
will carry the end of the slide E' into contact with the side of the rocking
piece M, and will by its pressure, move it somewhat away from its original position,
thereby carrying out of the way of the tack the hook m¹ at the same time a chisel-
ended pine will enter behind the leading tack at the end of the chute, and at last
the point of the slide will come in contact with the fixed part of the machine, as
shown in Figure 9, where the pivoted block has been displaced, the chisel-pointed
pin has entered behind a tack, and the toe of the slide has brought up against the
frame of the machine. In the further movement of the cam, this rocking motion
will serve to carry forward the slide E³, the pin eo moving in a slot on the side of
the frame of the machine, and the tack being carried forward until it is deposited in
the drive-way. By this time the stem e will have changed its position in the slot e¹
of the slide E from its leading end to its following end, and the cam will be in
position where the reverse motion will begin to take place. The first effect of ibe

page_text: '
reverse motion will be, of course, to cause the slide to oscillate on the pivot e³ until
its heel end e comes in contact with the frame of the machine. By this time the
chisel-ended pin el will be withdrawn from behind the tack, the latch m³ will have
been restored to its place soon after the tack is started forward by the pressure of the
spring m. The slide will begin to be moved back horizontally, the slot e and the
slide E moving around the stem e until the first position of the slide E' is reached,
when the slide will again rock on the pivot e³, and the chisel-pointed pin eo will
enter behind another tack. Thus the tacks will be taken one by one from the end of
the chute and carried forward and left in the drive-way of the machine.
The arrangement of cam, cam pin, and rock shafts in this contrivance may of
course, be much varied, the object to be acccomplished is to get a combination of a
sliding rocking motion to the chisel-pointed pin resembling in some degree the four-
motion feed of the sewing machine, forward, out back, in and forward again, after
the tack has been delivered to the drive-way of the machine. The driver B Figures 1
and 4 is operated by a cam pin on a cam disc attached to the main shaft, the cam
pin operating in a groove made in a piece attached to the driver B, as shown.
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 :-
First. In a machine for feeding loose tacks from a hopper to a driving apparatus
the combination of a wheel having an annulus of cells adjacent to its periphery,
which cells are open through both faces of the wheel, and the walls of which cells on
the periphery nearest the centre of the wheel are inclined towards the axis of the
wheel, substantially as shown with a face guard extending from the bottom of
chute,
the wheel to some point near its top, and with a pair of fixed deflectors, and
substantially as described.
Second. In a machine for feeding loose tacks to a driving mechanism, the com-
bination with the reciprocating, rocking slide E', provided with the transferring
pin e of the rocking latch m³, substantially as described.
Third. In a machine for feeding and driving loose tacks, the combination of the
reciprocating, rocking slide E³, with the barrel and arm E³ E and with the stem e
substantially as and for the purposes described.
Fourth. In a machine for feeding and driving loose tacks, the combination of the
stem e provided with a disc at its lower end, and with an adjustable tension spring ef
at its upper end, with the barrel E3 and rocking slide E' substantially as described.
Fifth. In a machine for feeding and driving loose tacks, the combination of the
pulley A. and the friction brake, having its frictional engagement upon the edge
instead of upon the surface, a hopper, a bucket wheel, and suitable connecting gearing,
substantially as described.
Sixth. In a machine for feeding loose tacks to a driving apparatus, the combination
with a chute of a pair of deflectors k, a bucket wheel J, open from side to side and a
face guard K, substantially as described.
Seventh. The combination of a tack driver B, an actuating wheel A, an automatic
clutching and braking apparatus, tripped at the time and by the act of placing the
work in position, a tack hopper and intermittently acting tack lifting wheel, a tack chute,
and four motion pin feed, which conveys individual tacks from the end of the chute to
the driveway, all combined with one shaft, substantially as described.
Eighth. In a machine for feeding and driving loose tacks, a tack chute, a feed way
in line therewith, and a transferring device, substantially as described for taking the
tacks individually from the chute, carrying them through the feedway in line there-
with, and delivering them to the drive-way, substantially as set forth.
Ninth. The combination in a tack feeding and driving machine of a movable nose
or equivalent tripping device, a train of mechanism, substantially as described, for
connecting it with the driving shaft, a friction clutch thereon, a hopper with a
rotating bucket wheel therein, and intermediate connecting mechanism whereby upon

page_text: the application of a shoe to the nose of the machine said wheel is intermittingly
rotated; and a suitable tack chute, drive-way and driving mechanism, substantially as
described.
Tenth. In a machine for feeding and driving loose tacks the combination of a
suitable raceway, mechanism for arranging loose tacks or nails in a string therein, and
a four motion feed mechanism, substantially as described for positively engaging the
front tack of the string and depositing it directly under the driver, as set forth.
Dated this 11th day of September 1888.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.