Year: 1893

page_text: Date of Application, 19th Dec., 1893-Accepted, 3rd Mar., 1894

page_text: Fig. 55 is a side elevation showing the tack-hopper, the raceway, and distributor
mechanism, in combination.
Fige. 56, 57, 58, 59, 60, 61, 62, represent details connected with Fig. 55.
Fig. 63 is a sectional elevation of the base of the machine showing the starting
and stopping mechanism.
The working mechanism is mounted upon a column, A, which stands upon the
floor. This column supports on its top end a frame-work, designated in its
several parts by the letter, B. Said frame-work is called in this Specification a
"head."
It supports the working parts of the machine and to that end it has an
irregular formation, (see Fig. 29), with curves and projections to which the
working parts are pivoted or otherwise connected.
In the head, B, is journalled a shaft, D, which constitutes the main driving-shaft
of the machine. To that end it is provided with a pulley, E, and co-operating
driving and treadle mechanism adapted to be manipulated by the workman for
starting and stopping the machine. On said shaft, D, are set the cams and canı
wheels that give proper motion to the mechanism.
It may here be stated that the shoe is prepared for lasting by first putting the
upper onto the last, drawing it over at the toe and preferably at the sides also,
and securing it in each of said places with a tack or other fastening device. It
is then taken in hand by the workman and held up to the machine in position for
commencing the work, as shown in Fig. 25. The edge of the last with its upper
is pressed against the guide-piece, 10, with the edge of the upper turned or bent
inward over the last, all this to the end that it may be in position for the bite of
the pincers. The shoe is supported and turned by the hand of the workman, and
in order that the shoe may be easily held in position, while the pincers are drawing
and stretching the upper over the last, a rest, 12, is provided. Said rest is secured
by suitable connections to the machine head, or other suitable support and drops
down to the position desired relatively to the pincers. The shoe is pressed
upward against the bottom of the rest and the position of the rest is such that
when the shoe is pressed upward against the same, with its edge bearing against
the guide-piece, 10, as shown in Fig. 25, the upper will be in position for the
pincers to come forward and clasp the inturned edge of the upper.
The upper is seized, drawn upward and over the bottom of the last, and held
down to receive the fastening-tack by pincers, which are also made to perform the
proper plaiting at the heel, toe, or other places, as required. It will be under-
stood that a compound motion is required of this gripping mechanism. First, the
jaws of the pincers must open and close to take hold of the edge of the upper ;
then the pincers must rise to stretch the leather, and move over and then down
upon the last, all the while holding firmly to the leather in order to bring it down,
tightly stretched into the proper place for attachment to the inner sole, and there
must hold it until the wiper, hereinafter described, is moved forward.. The tack
is then driven and the operations of the pincers must be repeated. The pincers
are provided with two jaws,-one, 14, fixed and the other, 16, movable in relation
to the fixed one. For details of construction, reference may be had to Figs. 4, 5,
6, 7 and 8. The shank, 13, carries the outer or fixed jaw, 14; it is grooved
longitudinally, (see Figs. 4 and 5), and in this groove lies the shank, 15, of the
movable jaw, 16. The shank, 15, is confined to the shank, 13, by means of a
collar, 17, which collar is fixed to the shank, 13, but allows the necessary vertical
movement of shank, 15. The shank, 13, has on its top end a ball which is made to
enter a corresponding socket formed in the end of the pincers tilting lever, 18, all
this to the end that the pincers mechanism as a whole may be supported by the
lever, 18, and permit being swung backwardly and forwardly and laterally to
either side.
It will be understood that a movement of the pincers shank, 15, in one direction
operates to open and a movement thereof in the opposite direction operates to close
the pincers jaws. These movements are imparted to the pincers shank by a
mechanism with which the pincers shank, 15, is connected in a manner to permit

page_text: the necessary front-to-rear and lateral swinging movements of the pincers mechanism.
In this connection provision is also made to have the pincers jaws close upon the
leather interposed there-between, with force sufficient for holding the upper during
the stretching, straining and plaiting operations; also to develope and apply this
holding force to the interposed leather quickly and without straining and possibly
breaking the pincers jaws from their respective supporting shanks.
As shown in the accompanying drawings, to this end, the driver, 24, is provided
with a screw-threaded bore, in which it receives and supports the correspondingly
screw-threaded thimble-nut, 26. At the bottom of this bore in the driver is formed
a shoulder, 29. Above this shoulder within the driver and its nut, is a plunger, 27,
provided with an enlarged head end, to bear upon the shoulder, 29, and further
provided with a tang, which extends upwardly through a suitable hole in the
nut, 26, as shown fully in Fig. 13. This arrangement permits longitudinal
reciprocating movements of the plunger, 27. Partly in the driver, 24, and partly
in the plunger, 27, is formed a socket to receive a ball on the end of link, S, and
on the opposite end of said link is a ball that fits in a correspondingly-formed
socket in the collar, R, which is secured to the pincers shank, 15.
A coiled spring, 28, (Fig. 13), is interposed between the nut, 26, and plunger, 27,
so as to normally hold the plunger in bearing contact with the shoulder, 29, of the
driver, 24. During the downward movement of the driver, 24, for closing the pincers
jaws, the spring, 28, moving with the driver, retains the plunger, 27, in bearing
contact with the shoulder, 29, until a resistance is developed in the compressed
leather which, acting upwardly, through the pincers-shank, overcomes the normal
tension of spring, 28, whereupon the spring, contracting, operates to take up further
movement of the driver, applies thegripping force yieldingly, maintains the necessary
hold upon the leather, and at the same time it relieves the pincers jaws from being
unduly strained.
By an obvious turn of nut, 26, the spring, 28, is adjusted to develope therein a
condition of normal tension about equal to what is necessary to apply as a gripping
force upon the leather and accommodate the pincers in the necessary variations of
thickness that appear in the leather of a given class or character.
It has
It is desirable to have a firm and solid connection between the collar, R, and
shank, 15, and in this connection to provide for taking up the wear incident to these
parts, as also for quickly removing one shank and substituting another therefor, in
cases of breakage. To this end, the collar, R, is provided with shoulder, N,
(Fig. 4), against which the top end of shank, 15, is made to bear. Said collar is
further provided with an opening, 4, (Fig. 8), through which is introduced a binding
clip, 6, (Fig. 4). This clip is shown on an enlarged scale in Figs. 6 and 7.
an opening, 8, to receive the pincers shank and is provided with a bevelled face, 9,
and adapted to bear on a counter bevel formed on the pincers shank, 15, as shown
in Fig. 4. Said clip has a screw-threaded tang that, projecting outwardly, through
the collar, R, receives suitably threaded check-nuts, (Fig. 4). By an obvious turn
of one of said nuts the clip is made to bind upon and hold the shank, 15, firmly to
the collar, R, forcing it by reason of the inclined or bevelled face, 9, upwardly and
solidly against the shoulder, N, whereupon a suitable movement of the other nut
operates to hold the parts from working loose.
The driver, 24, is supported by an arm, 23, (Fig. 13), on the rock-shaft, 22, so
that a partial rotation of the shaft in one direction, lifts and in the opposite direction,
depresses the driver, 24. Shaft, 22, is supported one end in a boss or arm extended
from the lever, 18, and one end in the extended head portion of rock-shaft, 19, all
this to the end that the shaft, 22, may accompany the tilting movements of lever, 18,
vertically for lifting and depressing the pincers mechanism as a whole.
On the shaft, 22, is a collar, 34, and a spring, 32. One end of said spring bears
upon the lever, 18, and its opposite end bears against the collar, 34, as shown in
Fig. 15. It is the action of this spring, thus arranged, which, operating through
the collar, 34, effects a partial revolution of shaft, 22, for lifting the driver, 24, and
opening the pincers jaws. An obvious adjustment of collar, 34, permits any degree

page_text: of normal tension being developed in spring, 32, that may be required for this
purpose. On the machine shaft, D, is a fixed cam, 40, which engages the lower end
of arm, 36, the top end of which arm is connected with shaft, 22, by clamp screws,
which permit the arm to be adjusted rotatively on said shaft. The cam, 40, is held
in contact with one end of arm, 36, by the normal action of spring, 32, in opening
the pincers jaws. Said cam is formed so as to lift the lever arm, 36, and thereby
partially rotate the shaft, 22, against the normal action of spring, 32, and compel a
downward movement of the driver, 24, whenever it is desired for closing the pincers
jaws and further operating to apply the holding pressure, then later to release the
arm, 36, allowing it to drop and the spring, 32, to act for opening the pincers-jaws.
The shape of this cam is shown in Fig. 10.
In order to lift and lower the pincers vertically, the lever, 18, is suitably tilted
by a cam, 280. To this end the lever, 18, is supported on a rock-shaft, 19,
(Fig. 15). The cam is fixed upon and made to revolve with the shaft, D. In the
forked rear end of lever, 18, is a collar, A³, which being pivotally supported in
the lever by screws, a, a, bears against the top end of the plate-bar, E. From the
bar, E, a pin projects into a cam-groove, in the cam, 280, which groove is so
fashioned that each complete revolution of the cam effects a longitudinal reciproca-
tion of the bar, E. The upward movement of bar, E, operates to lower the pincers
into position for grasping the upper and the reverse or downward movement of the
bar operates to lift the pincers for stretching the leather and straining it upwardly
and tightly to the last. In order to prevent tearing the leather it is necessary for
this uplifting movement of the pincers to possess a yielding quality and be variable
adjustably, to meet the requirements of different kinds and qualities of leather. To
this end, the bar, E, is provided with a screw-threaded socket in which to receive
the screw-threaded spindle, H, as shown (Figs. 18, 19 and 20), and has a clamp-
bolt, whereby the bar is clamped tightly about the spindle to hold it in any
elevation to which it may be adjusted. The top end of spindle, H, is screw-threaded
to engage and support, as shown, a screw-threaded nut, b. Said spindle supports
the loosely sliding collar, B³, and is formed with a shoulder, n. Interposed between
the nut, b, and the enlarged head, d, of collar, B', on the spindle, H, is a spiral
spring, 25. Said spring bears one end against the enlarged head, d, of collar, B2,
and its opposite end against the nut, b, and pushes the collar, B³, yieldingly
downward.
In operation, the cam, 280, effecting a downward movement of the bar, E, carries
downwardly the spindle, H, its nut, b, the spring, 25, and collar, B³, and brings the
end of collar, B³, to bear upon the top face of collar, A. A yielding force is thus
applied through spring, 25, to the rear end of pincers-lifting lever, 18, and this force,
it will be understood, is what, operating through the pincers-lever, 18, lifts the
pincers and pulls and strains the shoe upper.
It will be observed that the spring, 25, acts as a connecting rod, simply
transmitting movement and force from the bar, E, to the pincers-lever, in a positive
manner, up to the point where the tensional strain of the leather, developed by the
uplifting pincers, acting through the pincers lever, 18, resists the downward
movement of collar, B³, with force sufficient to overcome the normal tension of
spring, 25; after this takes place, the spring, 25, contracting, acts as a yielding
connecting rod, transmitting movement and force to the pincers-lever, yieldingly,
so as to impart a yielding quality to the pincers uplifting movement.
At times it is desirable to adjustably vary the pincers-uplifting movement,
conformable to the non-yielding qualities of the leather. To this end, the spindle, H,
is made adjustable longitudinally in relation to its supporting bar, E, and is provided
with a shoulder, n. When the spindle is adjusted so that the shoulder, n, sets
within the cavity of the collar, A, as shown in Fig. 18, the spring, 25, acting
downwardly, conveys motion to the pincers-lever, 18, during the entire downward
throw of the bar, E, and thus effects a long or extended pincers-uplifting
movement, but when the shoulder, n, is by a suitable adjustment of spindle, H,
lifted to a position above the collar, A³, as shown in Fig. 20, then a portion of

page_text: the downward throw of bar, E, is taken up in bringing the spring, 25, to .act
upon the collar, A', and the remaining portion of the downward throw of bar, E,
only, is transmitted through the spring, 25, to depress the pincers-lever, and
consequently a short uplifting movement of the pincers is effected.
In order to understand the vertical movement of the pincers effected by cam, 280,
it may be stated that during this vertical movement, by means of mechanism
bereinafter described, the pincers receive also a front-to-rear movement, in order
to advance and then draw the leather over the last after they have gripped it.
We will suppose the pincers to have gripped the leather. This occurs when the
pincers are at their lowest point of depression. At that time they are also moved
by the mechanism hereinafter described, farthest to the rear. The cam, 280,
then operates to depress the lever, 18, thereby lifting the pincers vertically and.
drawing the leather to stretch it upward, and as the cam, 280, advances, the
pincers come down, having by other mechanism been moved forward over the
last. The pincers do not here come down as low as they were: carried when
gripping the leather, but drop sufficiently to place the leather in' position for
tacking the inner sole. The pincers then release their hold upon the leather and,
descending farther, go forward to again seize the leather and rise as before.
The upward and downward movements of the pincers are effected by the groove
in cam, 280, through the described intermediate mechanism.
In the description of the parts given above reference is made to a front-to-rear
movement of the pincers which takes place during the vertical movement thereof,
which, with said upward movement, forms a resultant, causing the pincers to draw
up the leather, carry it over the last and lay it down in position for tacking to the
inner sole.
The mechanism by which this front-to-rear movement is accomplished will now
be described. The shank of the pincers extends through a carrier, 30, which
carrier comprises vertical and horizontal tubular sleeves, a², 62, formed in one block
or piece and arranged at right angles to each other, (Fig. 22). The vertical
sleeve, a³, is made. to surround the pincers shank and the carrier as a whole is
supported on prongs, 31, 31, which surround and embrace the horizontal sleeve, b³.
The prongs are carried on the front end of rod, 50, which rod permits a slight
rocking movement in its bearings to allow the swinging of the pincers laterally, as
referred to hereinafter. A pin projecting from said rod supports a cam-roll which
engages the cam, 54, on the main shaft, D, as shown in Fig. 21. Said cam operates
to move backward the rod against the tension of a spiral spring, 53, (Figs. 1 & 3).
This spring operates, when the cam permits it, to move forward the rod, 50, and
consequently the pincers supported thereon and this, it will be understood, is the
force applied yieldingly to the pincers for drawing the leather forward over the
last. As a further aid in understanding the same, it is observed that during a part
of its revolution, the cam .holds the pincers in their rear position while the
mechanism before described operates to cause them to grip the edge of the leather.
As the cam advances farther, it releases the rod, 50, and the pincers are advanced'
over the last by the spring, 53, forcing forward the rod, 50. The cam advances
still farther, allowing the pincers to remain in their advanced position while the
leather is secured in place to the inner sole, and then a further movement of
the cam forces the pincers backward to a position for taking a new hold upon
the leather.
It should be borne in mind that the pincers, in their general movement, pass
backward, gradually descending to the edge of the upper and here it is necessary
that the movable jaw should be raised so that the gripping face of the fixed jaw
may pass under and bear against the inner face of the upper, the upper meantime
passing in between the pincers-jaws. It will be observed that the jaws are opened
back to the rear, as shown in Fig. 1, so that when the movable jaw is raised, it
opens the space between the two jaws. In practice the upper jaw should be raised
about three-quarters of an inch and this occurs just before the jaws come back
against the upper.

page_text: To further assist the workman, the rest, 12, and edge-guide, 10, are employed
which, being supported on suitable connections with the machine head or other
support, project forward relatively to the pincers, so that when the shoe is held with
the last bearing upwardly, its bottom against the rest and the edge thereof with the
upper pressed against the edge-guide, 10, the upper being turned inward over the
last, the upper will then be in position for the pincers to come forward and clasp
the inturned edge of the upper for stretching, drawing and otherwise manipulating
it in the lasting process. A variety of differently formed edge-guides are preferably
arranged in order to obtain the best results with different kinds of work. It is
desirable in some cases to have the edge-guide formed with a narrow edge
face and a thin body portion leading backwardly therefrom to permit the shoe
being tipped or rocked under, (see Fig. 28), thereby giving a comparatively straight
tension to the pincers' pull, while in other cases it is desirable to have the shoe
more upright to present a more angular tension for the pincers pull. In this latter
case, a comparatively thick guide is preferable and in extreme cases, no edge-guide
is wanted. A series of differently formed edge-guides is therefore provided and
supported in connection with the machine so that the workman may shift one guide
for another, during the continuous operation of the machine.
In carrying out this feature of the invention, a hollow journal sleeve, 33, is
employed. It is connected with the machine so as to permit adjustment toward and
from the pincers. In said journal sleeve is socketed a conically ended pin, 35,
(Fig. 28). Said pin permits end wise reciprocation and is surrounded by a spring, 37,
whereby the pin is pressed yieldingly against the flange, 39. Said flange is secured
to shaft, 38, and is provided with cavities or sockets for receiving the conical end
of pin, 35. The shaft, 38, is supported so as to permit rotary movement in the
sleeve, 33, and carries on its top end the edge-guides, 10, as shown in Fig. 28.
the present instance, two guides are represented projecting from the shaft, but
others may be projected therefrom in a similar manner, when desired. Said guides
project forward so that when in alignment with the rest, 12 and pincers, their outer
or working ends will be in position of working relation to said rest and pincers, as
shown in Fig. 1. The guides, 10, may be also arranged to permit independent
adjustment, as shown.
In
It will now be understood that for each of the guides, 10, there is a pin-receiving
socket in the flange, 39, the relation being such that when a particular guide is
moved into the position of working relation to the rest and pincers, the pin, 35, drops
into a cavity in the flange, 39, thereby sustaining the position of the guide, so that
whenever the workman desires to shift one guide for another he places one hand to
the handle, 98, and applies thereto a lateral pressure sufficient to lift the pin, 35,
out of its cavity in the flange, 39. Thereupon, the shaft, 38, permits the rotation
necessary for bringing the intended guide into the position of working relation, the
other guides being by this same movement, displaced. In case no edge guide is
wanted, the rotation of shaft, 38, is carried to a point where all the guides are out
of the position of working relation.
Only the movements of the pincers mechanism, heretofore described, are necessary
on the sides of the last. In order to form the plaiting at the heel and toe and
occasionally at other places, another movement is required. For this purpose it is
necessary that the pincers should have a lateral movement. It is also necessary
that such movement should be adapted to yield, as required, to prevent tearing the
upper and it is further desirable that such movement should be arranged to take
place only when the operator wills it.
In order to permit the necessary swinging movements, the forked ends or
prongs, 31, 31, (Figs. 21, 23), are made to surround the horizontal sleeve, b²,
thereby supporting the carrier, 30, and also permitting a slight rocking movement
of the sleeve in its supporting-bearing, which allows a front-to-rear swinging
movement of the pincers, while the fork permits a rocking movement on its bearing
to allow a swinging movement of the pincers laterally. Formed integral with, or
otherwise supported by the arm, a², of carrier, 30, is a boss, 17. It has a screw-

page_text: threaded socket to receive the correspondingly screw-threaded hollow nut, 48, and
projecting therefrom are studs, 41, 42, on which is supported a horizontal lever
bar, 43. Said bar, 43, is provided with a socket midway between its contacts with
the supporting studs, 41, 42, (see Fig. 27). In this socket is stepped one end of
the spindle rod, 44, the top end whereof is projected through an opening in the
hollow nut, 48. The spring, 49, is made to surround the spindle, 44, with one end
bearing against the top face of nut, 48, and its other end bearing against a shoulder
on spindle, 44, so that the tension of said spring operates downwardly on the
spindle and holds the lever arm, 43, pressed yieldingly down upon the supporting
studs, 41, 42. A suitable turn of the nut, 48, operates to expand or contract and
consequently vary adjustably the tension of said spring, 49. To maintain such
adjustment, the carrier is suitably slotted and provided with a clamp screw,
whereby to clamp and firmly hold the nut, 48.
Beneath the lever, 43, and in alignment with the spindle, 44; is a stud, 46, which
is fixed in and projects from the carrier, 30. Supported by the stud, 46, is a
triangular rock-lever, 45, (Fig. 27). The bottom end of lever 45, is made to
embrace, as shown, a pin, 52, that projects from the rod, 51, the arrangement being
such that the lever, 45, bears normally in contact with the bottoin face of lever, 43..
and is thereby positioned by the tension of spring, 49, so as to hold the rod, 51, in
position with the pin, 52, in alignment with the pincers shank, as shown in Fig. 27.
This, it will be understood, is the position of parts named from which the lateral
or plaiting movements of the pincers are made to take place.
To effect the lateral or plaiting movement of the pincers, the rod, 51, is
reciprocated endwise. It will be observed that a movement of the rod, 51, carrying
pin, 52, out of alignment with the pincers shank in one direction, rocks the lever, 45,
thereby lifts one end of lever, 43, and directs the tension of spring, 49, so as to
operate through the bearing-end of lever, 43, and move the pincers-carrier, 30, and
consequently the pincers with a yielding tension to one side of the normal or draft
line for laying the plait in one direction, (as shown in dotted lines, Fig. 27); a
contrary movement of rod, 51, carrying pin, 52, out of alignment with the pincers.
shank, to the opposite side thereof, effects a counter rocking movement of lever, 45,
lifts the opposite end o lever 43, and thereby directs the tension of the spring, 49,
so as to operate now through the other end of lever, 43, and enforce a movement of
the pincers to the other side of their normal line for laying the plait in that
direction. Said movements of the pincers in either direction are thus enforced
against the tensional strain of spring, 49, whereby is allowed the necessary yielding
quality, so as to prevent the pincers from tearing the leather.
The lateral movements of rod, 51, are imparted through the connecting rod, 55,
which is connected at one end with the rod, 51, by a swinging or ball-joint connection,
to permit the necessary movements of the pincers carrier. The opposite end of
rod, 55, is connected with a movable crank-pin, 64, (see Figs. 3, 38), through an
intermediate yoke, 66. The crank-pin, 64, is supported in a sliding block, 63, which
is supported on a rocking driver-head, 57, and is arranged to permit sliding move-
ment along the groove, 62, formed in the driver, 57. Said groove, 62, is made to
cross the axis of rotation of the driver and is preferably made curvilinear.
Rocking movement is imparted to the driver by mechanism hereinafter described.
Obviously, while the pin, 64, is in line with the centre of rotation of the driver, the
driver will simply turn the pin, 64, and impart no movement to the pincers
mechanism. If, however, the pin, 64, be carried along the groove, 62, to one side
of the centre of rotation, it will act as a crank-pin and force the rod, 55, in one
direction, carrying with it the pincers to one side of their normal position; but if
the pin, 64, is moved along the groove to the other side of the line of rotation, it
will operate to draw the rod, 55, and carry the pincers in the opposite direction, to
one side of their normal position. The object of this two-fold motion is to draw
and plait the leather, at one time, in one direction, and at another time, in the other
direction.
'
The driver, 57, is rigidly attached to or formed integral with a sleeve-shaft, 56,

page_text: •
(see Figs. 37, 38). Said sleeve, 56, is journalled in a boss or horn, extending from
the head, 13, and carries on its opposite end a sectional gear, 58, that meshes with a
segment-gear, 59, on the end of lever, 60. Said lever, 60, is pivoted to the head, B,
as shown in Fig. 38. It engages its rear end with a cam, 61, which cam is on the
main shaft of the machine and operates to rock the lever once in each direction,
during the revolution of the shaft. This operates to rock, the sleeve, 56, and
consequently the driver, 57, which is on the forward end thereof, and which
supports the pin, 64, as before described, which pin, in turn, supports the bar, 65.
Said bar has its ends jourualled in the yoke, 66, of the rod, 55, and permits rocking
movement on the pin, 64. The opposite end of said yoke connects adjustably with
the rod, 55. All these parts are fully represented in Fig. 38 of the drawings.
It is desirable, as before stated, that this plaiting mechanism shall be subject to
the control of the workman, so as to be thrown into or out of operation at any time
and varied in extent. To this end we provide mechanism as follows;-Extending
from the columu, A, (see Fig. 29), is a boss on which is pivoted a lever, 68. Said
lever is provided on its front end with a fork, 69, (Fig. 31), to receive the knee of
the workman. In the rear end of said lever is a cam-groove to receive the cam-
roll, 70. Said roll turns on a pin projecting from the rod, 71. The cam-groove is
cut on an incline, as shown in Fig. 30. A movement of the lever in one direction
past the centre line, lifts, and a movement thereof past the centre line, in the
opposite direction, depresses the rod, 71. The top end of said rod connects with a
bell-crank lever, 73, (see Fig. 1), which lever has on its end a fork embracing the
collar, 74, (see Fig. 37). Said collar is arranged to slide on the sleeve-shaft, 56.
It is grooved and splined therewith to prevent turning independently thereon.
In the collar, 74, (see Fig. 33), is a spiral cam-groove, 72. In the shaft, 76, is
set a pin, 75, (Fig. 36). This pin, extending outwardly from the shaft, 76, through
an opening in the shaft, 56, (see Figs. 32 & 34), reaches into the cam-groove, 72,
of collar, 74, as shown. Said shaft, 76, permits rotary movement in the sleeve and
carries on its forward end a gear, 77, that engages the gear teeth formed in the
slide, 63, (see Fig. 39).
From the foregoing description it will be understood that the driver, 57, is given
a continuous rocking movement, but imparts no motion to the pincers mechanism,
so long as the pin, 64, is in line with the centre of rotation of the driver. Such is
the position of the pin, while the lever, 68, is extended in a substantially straight
line forward, in which position it is supported by a spring-stop. This is the normal
condition of the lever and a movement thereof to one side lifts the rod, 71, which
movement is transmitted through lever 73, collar, 74, pin, 75, shaft, 76, and
gear, 77, to the slide 63, and moves the slide, thereby carrying the pin, 64, along
the groove, 62, to one side of the axis of rotation of the driver, 57. The lateral
movements of the pincers then begin and the extent thereof is determined by the
position of the pin, 64, relatively to the said axis of rotation and this, in turn, is
limited by the extent to which the lever, 68, is moved laterally from its central or
normal position. A reverse movement of the lever, 68, will operate to carry the
pin 64, off the centre of rotation in the opposite direction.
The lever is designed to be moved by the knee of the workman and the limit of
movement allowed is regulated by the set screws, 79, 79, (Fig. 31). In performing
the plaiting around the toe of the shoe, it is desirable to have the pincers pass over
to one side of their normal, perpendicular position and starting from that point, to
move forward and grip the edge of the leather, lift upward and then backward to
the starting point and thence pass to the opposite side of the perpendicular line for
laying the plait. This movement of the pincers lays the plait in a line more nearly
perpendicular to the curve of the last and thus prevents the leather from being
crimped along the edge of the last. To this end is arranged the pin, 64, so as to
travel in a curvilinear path of the driver, 57, (ie., the groove, 62), as this con-
struction gives a more uniform advance movement of the pitman, 55, and consequently
a more uniform movement of the pincers laterally.
It should not be understood that the pin, 64, must be inoved in a curvilinear

page_text: path, as a straight path across the centre of rotation would be efficient, though it
will not result in so uniform a movement of the pincers as when the pin moves as
shown.
The tacking mechanism will next be described. It will be understood that after
the pincers have gripped the leather and laid it down upon the last, the tacking
mechanism is moved forward into position for driving the tack and again is moved
backward to allow the next operation of the pincers. To this end is provided a
carriage, (Fig. 46), having a. lateral extension, 84, and a vertical extension, 85.
The lateral extension, 84, is arranged to permit sliding movement in a groove
formed in the head, B. Connected therewith is a lever 87, (see Fig. 1), which
engages a cam, 88, on the main shaft, whereby the carriage is moved forward and
backward over the last, during each revolution of the cam. The tack-inserting
bar, 90, is arranged to permit vertical movement in a groove formed in the vertical
extension, 85, (Fig. 46). The bar is lifted by a cam, 91, the shape of which is
represented in Fig. 45. Said cam is mounted on the end of a sleeve, 92, (Fig. 46):
This sleeve is arranged on the main shaft, D, and is grooved and splined thereto,
so as to revolve therewith for lifting the bar, 90, and permits sliding movement on
the sleeve, to accommodate the forward and backward movement of the carriage.
The bar, 90, is lifted against a spring rod, 93, (see Figs. 3, 44), which, being
twisted by the lifting operation, operates to depress the bar, whenever the cam
permits it and this, it will be understood, is the power which drives home the
tack. The tacks are received from the distributing mechanism, (hereinafter
explained), by a polished steel chute, having a raceway, along which they are
conducted to the separating and delivering screw, 81. Said screw drops the
tacks one at a time, into a vertical tube, 82, through which they descend to a
chamber in the tack-holder, 20, whereby they are supported and carried forward
to the driving point. To this end the said holder is secured to the bottom of
the carriage, arm, 85, and is moved backward and forward therewith. Said
holder, by the rearward movement of the carriage, is brought into position with
its tack-receiving tube directly under and in line with the tube, 82. The tack
is dropped through the tube, 82, into the chamber, 83, of the holder, while the
pincers are gripping and drawing the leather over the last. The carriage is then
moved forward, carrying the holder, 20, and the hammer-bar, 90, into position for
driving the tack. During this forward movement, the tack remains lodged in the
holder. Said holder comprises two parts, which are pivotally connected, (see
Fig. 40). The parts are held together by springs, 95, 95, and the hammer bar, in
descending, passes into the tube, 83, thereby spreading the parts against the action
of the springs, 95, 95, and releasing the tack at the moment of driving.
Connected with the holder, 20, is a spring, 96, located under the holder and
having an opening coinciding with the chamber, 83. During the forward movement
of the block, this spring, 96, bears upon the leather and wipes over the edge
thereof, drawing and retaining it in position for driving of the tack. The tack, in
driving, passes through the opening in this spring. The hammer-bar is hinged so
that the bottom may be swung forward and permit the holder, 20, to pass under the
receiving tube, 82. A rod, 94, arrests the rearward movement of this lower end of
the hammer-bar, thereby causing it to swing forward, and allow the channel-block
to have place over the tack-holder, 20. During the forward movement of the
carriage, the hammer bar is forced back to its normal condition by a spring, 97.
By thus arranging the hammer bar and swinging it backward and forward, as
described, the work of lifting the hammer bar high enough to clear the end of the
raceway block is avoided and thereby the time required to lift the hammer-bar is
shortened.
:
The tacks are distributed and deposited in the tack race-way with their heads
bearing upon the sides of the chute, their points projecting downward into the
raceway by mechanism described as follows;-The shaft, 204, (Fig. 51), is provided
with a spiral gear, 205, (Fig. 2), that engages with a similar spiral gear, 78,
(Fig. 1), on the main driving shaft, D, from which power is transmitted through

page_text: •
said gears to revolve the shaft, 204. The motion of said shaft, 204, is trans
mitted to revolve the shaft, 206, through intermediate mechanism composed of
the worm-shaft, t, and gears, k, k, n³ (see Fig. 51), the effect being to revolve
the pot, 100, which is mounted. to turn with the shaft, 206. The worm on
shaft, t, engages the shaft, 206, which is recessed to receive the worm, as shown
in Fig. 51. These engaging parts of the two shafts and the two shafts them-
selves are fully covered and concealed by the supporting frame-work, all to the
end that they may be shielded from bits of broken tacks and thus protected from
injury. To the same end, a cap is secured over the end-face of gear, n³, as shown.
The tack pot, 100, is mounted loosely on the shaft, 206, and takes ite bearing on
the shaft intermediate the collar, a*, (Fig. 49), which is fixed on the shaft, 206, and
the collar, e, which has a splined connection to permit longitudinal movement, but
revolves with the shaft, 206. Said shaft has a screw-threaded outer end to receive
and support the correspondingly screw-threaded nut, f*; by an obvious turn of the
nut,, the collar, e, is forced into frictional contact with the bearing sleeve of
hopper pot, 100, so as to compel the hopper pot, 100, to revolve in unison
with shaft, 206, but permit the hopper pot to stop against obstructing
force, such as tacks or pieces of tacks wedged between the hopper pot and
its adjacent supporting framework. By thus interposing the collar, e, between
the nut, f, and end face of the bearing sleeve of tack pot, 100, liability
of the nut,, being stopped in unison with the tack-pot, 100, and becoming
screwed, by reason of the continuing rotary movement of shaft, 206, into binding
contact with the pot, 100, and the possible breakage of parts incident thereto, is
obviated. Said pot is closely adjacent to and turns in sliding contact with the
basin, 207, which basin opens at its rear end into the pot, 100. The tacks are
placed in bulk in the basin, 207 and gravitate down its inclined faces into the pot
and are lifted by paddles, 208, secured to the pot, to a point above the
pan, 209.
Said pan is provided with inclined. faces, (see Fig. 51), converging to a point above
the raceway, 210, in the channel-block. The tacks, in falling from the paddles, 208,
strike into the pan, 209, and pass down its inclined faces, head or point first, in
either of which cases they shoot off the pan into the raceway where they are
suspended with their heads bearing upon the edges of the chute along the race-
way, 210. The tacks which are not lined point first or head first by the inclined
faces, so as to fall into the raceway, 210, fall back into the basin, to be again lifted
and dashed into the pan, as before.
In practice it is found that the best results are secured when the pitch or
inclination of the pan, toward the tack chute, is determined with due regard to the
weight of the tacks, so that it is desirable to have the pan supported adjustably, to
the end that the pitch or inclination thereof, relatively to the tack chute may be
varied to suit the particular weight of the tacks, temporarily in use. To this end,
the pan is secured in its bracket by a clamp-screw, 400 on which the pan permits
tilting movements. The bracket is secured to the framework by a clamp screw, 500,
on which the bracket permits vertical and lateral adjustments, the bracket being to
that end provided with an opening somewhat larger than the body portion of the
clamping screw, all as shown more fully in Fig. 48.
Obviously, some of the tacks will be improperly suspended in the raceway and
obstruct the downward progress of other tacks. These improperly suspended tacks
.must be lifted from the raceway, or adjusted so as to pass downward along the
raceway with the other tacks. On the channel-block is a bridge, 214, which over-
hangs the raceway, 210. This bridge obstructs the downward progress of all tacks
not properly suspended in the raceway, that is to say in other words, a tack
must be down upon the channel block, its head bearing closely on the surface of
the block and its point in the raceway, in order to pass freely under the bridge.
Above the bridge, is a tripper, 211. Said tripper is supported in the rock-shaft, 212.
Its bottom end bears upon the channel-block, above the raceway and its end is
.preferably grooved to receive the edges of the channel block. The tripper permits
movement vertically against. the spiral spring, 213, which is arranged about the

page_text: shank of the tripper and operates to bear it down upon the channel block. The
vertical movement of the tripper against said spring permits it to be reciprocated.
along the raceway block and also to be lifted onto the bridge, 214. To this end
an intermittent rocking movement is imparted to the shaft, 212. For this purpose,
the shaft, 212, is provided with an arm, 215, which extending forward, engages the
stops, 216, on the hopper, and when lifted thereby, a movement of the shaft, 212,
and consequently the tripper, is effected in one direction. The arm, 215, when
released from the stops, 216, drops downwardly, thereby effecting a reverse
movement of the shaft and tripper.
The tripper is moved forward regularly, its action being useless, of course, but
harmless, except when tacks are in condition for adjustment. It is desirable,
therefore, to have the bridge set upon the chute detachably, to the end that it may
be readily removed to get at and adjust the tacks. To this end, the bridge portion
of the chute cover is composed of a separate piece, (shown in Fig. 60). It has.
its forward end formed for receiving the tripper and in one side thereof is a
groove, 300, the side faces whereof are inclined, as shown in Fig. 60, and the back.
face whereof is inclined as shown in Fig. 59.
In use, the bridge is set upon the tack chute, as shown in Fig. 59. It is held in
place by a screw, 305, which to that end has a conical point adapted to set into the
groove, 300 and bear upon the inclined face-walls of the groove, so as to hold the
bridge in position longitudinally and firmly down upon the chute. This arrangement,
permits the bridge to be detached by simply withdrawing the screw, 305, and when.
set in place again, the forward movement of the screw operates to position and also
secure the bridge in place.
For a similar reason the lid, 180, of the chute, is made a distinct piece and
detachably connected with the chute. In use it is placed upon the chute, as shown.
It is held in position by a holding device consisting of the stud, 181, spring, 184,
and pin, 183, a niche being formed in one side of the lid to receive the pin, 183, as
shown. To remove or adjust the lid, the operator, placing one hand upon the
stud, 181, pulls it against the tension of spring, 184, thereby moving it sufficiently.
to bring the pin, 183, out of its niche and the stud may then be rotated sufficiently:
to lift the pin, 183, and permit displacement of the lid.
It will be understood that, after passing the bridge, the tacks gravitate down the.
raceway of the tack-chute to the spindle of a revolving distributor worm, 81, where
they are engaged and carried forward to the vertical receiving chamber 82, into,
It is found to be
which they are dropped, one by one, from the end of the worm.
important that the tack should be suspended and carried well over the chamber of
the receiving tube, (Fig. 62), before it is discharged from the worm, all to the end-
that the tack may drop freely and straightly downward. To insure the tack being:
thus carried into the desired position, the cover of the tack chute is provided with
a bead projecting downwardly on the under side thereof and operating as a tack-
guide, (Fig. 62), against which the tacks as they are carried along by the
distributor-worm, are caused to bear and be guided inwardly all the time holding
close up to the distributor worm and well over the central part of the receiving-.
chamber, in position to be out of engagement with the walls of the receiving
chamber, when dropped by the distributor worm.
The tack-distributing worm bears its discharge end against the inner wall of the
tack-receiving tube, 82, (Fig. 55), and has its shank or spindle end. socketed in the
end of shaft, 102, (Fig. 57), and carries an adjustable collar, 103, which may be
adjusted by means of a screw, 104. This permits motion and adjustment of the
distributor-worm longitudinally, and also causes it to revolve with the shaft.
The shaft, 102 is journalled in a supporting sleeve, which is detachably connected.
with the tack-chute, as shown in Fig. 57. Rotary motion is imparted thereto,
from shaft, 204, by intermediate mechanism composed of gears, k, k, shaft, h,
gears, 107, 108, collar, 109 and spring-actuated clutch-pin, 110, the gear, 108 being:
supported to turn loosely on the end of shaft, 102, and having a recess, 105, to
receive the conical end of spring-actuated pin, 110, said pin and its spring-actuating.

page_text: spring being supported in the collar, 109, which, in turn, is fixed- adjustably to the
shaft, 102, (Fig. 57).
This
It will be understood that with the connections described any abnormal resistance
of the tack-distributor operates to disengage clutch-spindle, 110, from its gear, 108,
thereby permitting the distributor shaft to remain stationary and at the same time
permit continuation of the motion incident to all preceding mechanism.
operates to prevent any breakage that might otherwise occur to the distributor
worm and its connections by reason of tacks becoming unduly wedged between the
worm and its surrounding walls, so as to cramp and stop the same.
It will be understood that the tack-distributor worm is so fashioned in relation to
the raceway-channel as to take from the channel and deposit in the receiving
chamber a tack at each revolution of the distributor shaft and the whole works
in connection with a driving mechanism that is timed relatively thereto, so as to
drive the tack between the operations of discharge. If then, a stoppage of the
tack distributor occurs, and its time relation to connecting parts is disturbed, such
relation must be re-established in order to keep the uniform regularity of time for
receiving and discharging the tack. To this end, the operator, by grasping the
collar, 109, may at any time stop the distributor worm to remove an improperly
lodged tack, or to examine or in any wise inspect the distributing mechanism and
whenever the inspection is completed, the hold is released at a time when the
clutch, 110, engages in the socket of gear, 108, and the desired connections are
timely re-established.
To adapt the machine so as to permit vertical adjustment of the lasting devices, as
required by different operators, a plunger, E', is employed, (Fig. 29). This plunger is
fitted in the machine column to permit reciprocating, vertical movements conformable
to the intended vertical adjustments of the lasting devices. This plunger is positioned
in the column, A, with its top projecting above the column and its bottom end
bearing upon the screw, K'. The screw, K', being supported in a suitable screw-
threaded hole formed in the column, is turned in one direction to effect an upward
movement of the plunger, E, and in the opposite direction to effect a downward
movement thereof.
The machine head, B, is secured firmly to the top end of plunger, E, so as to be
carried up and down with the plunger. The column is cut longitudinally so as to
provide therein a slot, and is fitted with clamp screws, whereby plunger, E', is
clamped firmly to the column, in order to maintain the adjustment.
During the lasting operation it is desirable to shift the shoe about, more or less;
in order to present such portions of the upper as it is desirable to have receive the
next progressive pulling and straining action of the pincers. In this, much depends
upon the judgment of the workman and it is also found desirable to have the
machine subjected in its movements to the will of the workman, in order that it may
be started and stopped as promptly as required.
To this end, a shaft, 111, is journalled in the base of the machine column. On
said shaft is a fixed pulley, 112, to receive the driving belt from any suitable
source. The pulley, 112, carries a friction disk, 114, and on the shaft is a
pulley, 113, which carries friction disk, 115. The pulley, 113, is loose on shaft, 111,
but has a belt connection with the pulley on the machine shaft, D. It is arranged
to permit movement on the shaft, 111, longitudinally, to the end that it may be
moved in one direction to contact the friction plates, 114, 115, for starting the
machine and in the opposite direction for separating the friction plates and stopping
the machine. On the machine head, (see Fig. 29), is a brake shoe, M³, arranged
to engage the machine pulley, E2, for the purpose of counteracting the momentum
of the machine and thus effect a prompt stoppage of the lasting devices. To this
end the brake shoe has a vertical reciprocating movement imparted in one direction
for engaging the pulley, E³, and in the opposite direction, for releasing its hold
upon the pulley.
.
The reciprocating, longitudinal movements of the pulley, 113, for starting and
stopping. the machine and the reciprocating, vertical movements of the brake

page_text: shoe, MM, Ior releasing and engaging the machine puney,.., are enected
simultaneously by the foot of the workman operating through a mechanism ás
follows:-
On the machine base is a pivoted lever, S. To this lever is pivoted one end
of a connecting rod, P. In the opposite end of the rod, P, is a rod, O', which
connects its top end with the brake shoe, M, and projects its bottom end into a
suitable receiving hole in the rod, P. The rod, Ps, is grooved longitudinally at
its top end and provided with a clamp screw, R', which may be operated to clamp
the rod, P, firmly about the rod, O', and thus establish a fixed connection between
lever, S, and brake shoe, M', that permits being extended and contracted adjustably
to accommodate the vertical adjustments of the machine head and lasting devices.
The workman, placing one foot upon the forward end of lever, S, and depressing
the same, lifts upwardly the brake shoe, M', thereby releasing its hold on the
machine wheel, E. On the rod, 0, is a spring, 217, (Fig. 29), interposed between
the machine head and a collar fixed on rod, O', whereby the rod and consequently
the brake shoe, M³, is depressed and held in contact with the machine wheel, E',
whenever the lever, S. is not depressed by the foot of the workman. Also. con-
nected with the lever, S', (Fig. 63), is a link, T, and pivotally supported on the
top end of said link is a wedge, W. Said wedge bears its inclined face against a
corresponding cam-faced sleeve, 310. This sleeve, 310, bears its opposite end in
sliding contact with the hub of friction clutch, 115, and permits longitudinal
movement on the shaft, 111, to the end that when the wedge, Ws, is moved upwardly
by an operation of the lever, S', it forces forward the sleeve, 310, carrying before
it the clutch, 115, into engagement with the clutch, 114, to set the machine in
operation. This upward movement of the wedge, W, is effected by the foot of the
workman depressing forward end of lever, S'. On removal of the foot the wedge,
is depressed by spring, 217.
From the foregoing it will be observed that the upward movement of brake
shoe, M³, to release machine wheel, E, and the upward movement of wedge, W', to
engage friction clutches, 114, 115, take place simultaneously as the workman
depresses the forward end of lever, S. In the hub of friction clutch, 115,. is a
spring, 116, which operates to separate the friction disks 114, 115, whenever the
wedge, W', drops sufficiently to allow said spring to act. Simultaneously with the
disengagement of disks, 114, 115, the engagement of brake shoe, M³, is applied to
the machine wheel, E³, to stop the working parts of the machine.
.
"
Having now particularly described and ascertained the nature of the said inven-
tion, as communicated to me by my foreign correspondents, and in what manner
the same is to be performed, I declare that what I claim is :-
1st. In a lasting machine, a one-part lever, as 18, a pincers mechanism jointed to
and supported by the lever on one side of the pivotal point and a yielding .con-
Dection between the lever on the opposite side of the pivotal point and the lever-
operating mechanism through which the lever-operating mechanism acts to lift the
pincers, substantially as described.
3
2nd. In a lasting machine, a one-part, pivoted lever, as 18, a pincers mechanism
jointed to and supported by the lever, on one side of the pivotal point and a spring
applied to the lever on the opposite side of the pivotal point, combined with an
operating mechanism arranged to engage positively with the lever for moving the
same to carry the pincers toward the last and to operate upon the lever through the
said spring for moving the pincers mechanism away from the last to stretch
the leather, substantially as described.
3rd. In a lasting machine, a pivoted lever, as 18, a pincers mechanism jointed
to and supported by the lever on one side of the pivotal point, combined with
a spring contracted to a degree of normal tension as described, and arranged
to have engagement with the lever on the opposite side. of the pivotal point
and operating mechanism for lifting and depressing the lever, substantially as
described.

page_text: 4th. In a lasting machine, the pivoted lever and pincers mechanism jointed to
the lever at one side of its fulcrum and spring connection applied to the lever
on the side of its fulcrum opposite to that to which the pincers mechanism is
applied, an operating mechanism for moving the lever and adjusting devices situated
between the said operating mechanism and the said spring connection, substantially
as described.
5th. In a lasting machine, a pivoted lever, a pincers mechanism jointed to and
supported by the lever, on one side of the pivotal point, a cam and intermediate
connections consisting of bar, E, spindle, H, and spring, 25, for lifting and depressing
the lever, substantially as described.
6th. In a lasting machine, in combination, the pincers shank, 13, and its jaw, 14,
the pincers shank, 15, and its jaw, 16, and the collar, R, secured to the shank, 15,
substantially as described.
7th. In a lasting machine, the combination of the tilting lever, 18, which
supports the pincers mechanism, mechanism for tilting such lever to move the
pincers as a whole, a driver connected with the movable jaw of the pincers, and
a cam for positively moving the said driver independently of the lever, 18, substan-
tially as described.
8th. In a lasting machine, the combination of the tilting lever, 18, which
supports the pincers mechanism, mechanism for tilting such lever to move the
pincers as a whole, a driver connected with the movable jaw of the pincers and a
cam for positively moving the said jaw to move it toward the fixed jaw and a
spring interposed between the driver and movable jaw, substantially as described.
9th. In a lasting machine, the combination of a tilting lever, 18, which supports
the pincers mechanism, mechanism for tilting such lever to move the pincers as a
whole, a driver connected with the movable jaw of the pincers, a cam which
positively moves the said driver to carry the movable jaw towards the fixed jaw,
a spring interposed between the driver and the movable jaw and a spring adapted
to open or separate the jaws, substantially as described.
10th. In a lasting machine, the combination of the tilting lever from which the
.. pincers mechanism is supported, the driver for moving the movable jaw of the
pincers, the rock-shaft, 22, supported to one side of and in bearings projected from
the lever, 18, and connected with the movable jaw-driver and means for rocking
the shaft, 22, substantially as described.
11th. In a lasting machine, the combination of the tilting pincers-supporting
lever, 18, the pincers mechanism jointed to and supported on said lever, the recipro-
cating head 24, connected with the movable pincers jaw, the shaft, 22, supported to
permit tilting movements in unison with the lever 18, and means for rocking said
shaft, substantially as described.
12th. In a lasting machine in combination with the movable jaw of the lasting
pincers, the driver, 24, a cam for moving the driver in one direction to close the
pincers and a spring for moving the driver in the other direction to open the pincers,
substantially as described.
18th. In a lasting machine, the combination of the pincers shank, 15, the
collar, R, the bevelled clip, 6, and clamp nuts, substantially as described.
14th. In a lasting machine, the combination with the pincers of a pivoted edge-
guide-support, a plurality of edge-guides of different shape or construction carried
by the said support and adapted to be brought into operative positions, one at
a time, and means for holding the support fixed in position with any one of the
edge-guides in operative position, substantially as described.
15th. In a lasting machine, the combination with the pincers and the last-rest, of
a movable edge-guide support, and a plurality of edge-guides carried thereby and
adapted to be brought into operative positions, one at a time, by a movement of the
support, the said edge-guides being differently formed or constructed and a lock for
holding the edge-guide support in position with any one of the edge-guides in
operative position and the other guides out of operative position, substantially as
described.

page_text: 16th. In a lasting machine, the combination with the pincers of the movable edge-
guide-support and a plurality of edge-guides carried thereby, and adapted to be
brought into operative positions, one at a time, by a movement of the support, the
said edge-guides being differently formed or constructed, and a yielding lock or
clutch for holding the edge-guide-support in position with any one of the edge-
guides in operative position and the other guides out of operative or working
position and against which the support is moved, substantially as described.
17th. The combination of the pincer mechanism, actuating mechanism for
imparting thereto lateral movements in order to plait the upper and a single spring
device, interposed between the said pincer mechanism and its actuating mechanisin
and constituting a spring-bearing for the actuating mechanism in either direction
from the central position, substantially as described.
18th. In a lasting machine, the combination of the pincers, the actuating
mechanism for imparting thereto lateral movements for causing the upper to be
plaited and a single spring device arranged between the pincers and the said
actuating mechanism, and including a rocking connection between the spring
member of the device and the said actuating mechanism, arranged to transmit the
movements of the actuating mechanism in either direction to the said spring member,.
substantially as described.
19th. In a lasting machine, the combination of the pincers supported to permit
movements in the opposite directious for plaiting the upper, the reciprocating,
actuating mechanism therefor, a single yielding device interposed between the
actuating mechanism and the pincers, including a spring which is put under tension
by the said mechanism as it operates to move the pincers in either direction and
means for varying the tension of the spring, substantially as set forth.
20th. In a lasting machine, the combination of the pincers, the carrier in which
the pincers are mounted, a driver, supported movably in the carrier and arranged
to impart lateral movement to the pincers in order to plait the upper, a spring
carried by the pincers, and power-transmitting mechanism interposed between the
spring and the driver and arranged to bear equally upon the said spring, whether
the driver be moved in one direction or the other, substantially as set forth.
21st. In a lasting machine, the combination with the pincers, of the reciprocating
rod, 51, adapted to impart lateral movement thereto, the rocking lever, 45, to which
the rod is connected and having the arms of equal length, the single spring
connected with the pincers, and the bearing carried by the said spring and with
which the arms of the said rocking lever are made to bear in whichever direction
the rod, 51, is moved, substantially as set forth.
22nd. In a lasting machine, the combination of a pincers mechanism and a
pivotally connected, supporting carrier therefor, a rod, 51, supported movably in
the carrier and a yielding, power-transmitting mechanism interposed between the
rod and carrier, composed of spring, 49, levers, 43, 45, and supporting studs, 41, 42,.
and 46, substantially as described.
23rd. The combination of the tack-hopper shaft, 206, upon which the tack-hopper
is mounted and recessed or grooved in the direction of its length, whereby it is
adapted to be engaged by the shaft, provided with a worm-wheel which drives the
shaft, 206, the framework supporting the said shaft and covering the connecting
gearing between them and operating mechanism for driving the shaft, substantially
as described.
24th. The combination of the tack-hopper, 100, the shaft, 206, upon which the
hopper is mounted, the shaft provided with a worm-wheel which drives the
shaft, 206, the shaft h, parallel with the shaft, t, the connecting gearing between
the shafts, the driving shaft, 204, connected by gearing with the shaft, h, the
framework supporting the said shafts and covering their connecting gearing and the
distributing devices for the tacks, substantially as described.
25th. In a machine for conveying tacks, the combination of the tack-hopper, 100,
for holding a mass of tacks, the tilting pan, having converging edges into which the
tacks are conveyed from the hopper, the tack chute into which the pan delivers the

page_text: tacks, a support for the pan upon which it is adjustable and means for securing
the pan to the support in the various positions to which it may be adjusted, the said
parts being arranged as described, whereby the inclination of the pan to the tack
chute may be varied, substantially as described.
26th. The combination of the tack-hopper, 100, the pan, 209, into which the tacks
are slowly conveyed from the hopper, the tack chute into which the pan delivers the
tacks and means substantially as described for adjusting the position of the pan
relatively to the tack chute, substantially as described.
27th. The combination of the hopper, 100, into which a mass of tacks are placed,
the chute into which the tacks are conveyed from the hopper, the detachable.
bridge-block, arranged above the tack chute and having a groove in its side, the
screw, 305, engagable with the said groove to hold the removable bridge-block in
place above the tack-chute, substantially as described.
28th. The combination with the hopper, 100, in which is placed a mass of tacks,
the tack-chute into which the tacks are delivered from the hopper, the detachable
lid, 180, for the tack-chute and the locking device for securing the said detachable
lid upon the chute, consisting of a stud, 181, acted upon by the spring, 184
and provided with a pin 183 adapted to engage with a recess in the lid substantially
as described.
29th. In combination, the revoluble tack distributor, 81, the rotating driver-shaft
and a yielding clutch interposed between the shaft and distributor, against which
the latter is revolved, substantially as described.
30th. In combination, the revoluble tack distributor, its rotating driver-shaft, the
spring-actuated clutch pin supported to turn with the distributor and yieldingly
engage in a recess of the driver shaft, against which the distributor is revolved, and
means by which the distributor is held against rotation of the driver-shaft,
substantially as described.