IMPROVEMENTS IN LASTING MACHINES
Year: 1884

page_text: VULIUM
I, GILBERT HAWKES of Lynn, in the County of Essex and State of Massa-
chusetts, U. S. A., Treasurer, do hereby declare the nature of my invention for
"IMPROVEMENTS IN LASTING MACHINES" and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
The operation called lasting is that part of the manufacture of a boot or shoe in
which the upper leather is made to assume the position and conformation upon the
last and inner sole that it is to have in the finished boot or shoe, and the term
lasting may also include the further operation of securing the upper and inner
sole in such relative forin and arrangement. My present invention relates to
mechanisms for performing these operations, and has for its object to provide
mechanical appliances and combinations whereby the performance of them may be
rendered as nearly as possible automatic.
The operation of lasting, as I have above defined it, I believe to be substantially
the same, whether performed by hand or by machinery in whole or in part. The
various steps which constitute the entire operation, are as follows:
1. The last, upon the bottom or sole of which the inner sole has been placed and
properly secured, and over which the upper has been drawn and secured to it
temporarily by a tack driven through the upper into the last in the customary way,
is put upon some suitable support, whereby the last and upper may be held in a
substantially vertical position with the bottom of the last uppermost.
2. The next operation, and the principal one, consists in drawing or folding or
plaiting or otherwise bringing the edge of the upper over on to the last, so that
it will, at all parts, evenly curve over the edge of the bottom of the last, in the
manner and position in which it is to be in the finished article.
Lastly: The drawn or folded or plaited edge of the upper and the inner sole are
BO secured together, that the upper will be permanently retained in its lasted
position.
My present invention relates, first: to devices by means of which the last and
upper are held in the proper position, as above suggested, for the lasting proper
or the drawing, plaiting or folding of the upper over and upon the last and
the inner sole, to be performed. My invention also consists in improved devices
and combinations thereof, whereby the lasting proper is performed, and further in.
-

page_text: suitable devices and combinations thereof, whereby the lasted upper and inner sole
are secured in their relative positions, and finally in improved devices and com-
binations thereof, whereby the various devices before referred to, are operated,
adjusted and regulated.
1 will now proceed to describe a machine for lasting boots and shoes, in
which my invention as above indicated, is embodied in the best form now known
to me.
To receive and support the last and upper, I provide a heel-rest and a toe-rest,
and mechanism for raising and lowering them; and, also mechanism for varying
the distance between them, such adjustments being required to fit this part of the
machine for use with various sizes of last. Furthermore, for causing the edge of
the upper at the toe to assume and maintain the desired position vertically, I
provide a retractible guide or holder.
For performing the operation of lasting the upper over and upon the last and
inner sole, I provide a series of gripers or pincers to seize and hold the .edge of
the upper, horizontally moving plates or slides to press against and force inward
the edges of the sides of the upper, and horizontally and curvilineally moving
plates or slides to gather or plait the edges of the upper over and upon the heel and
toe of the last. I also provide mechanism for uniting and retaining the lnsted
upper and inner sole in position by heat and pressure applied to a retaining strip of
suitable material and form, thereby causing its inner surface previously coated with
a fusible cement, to adhere to and bind together the lasted upper and the inner
sole. Finally, I provide suitable mechanism for operating these various devices at
the proper relative time, and in the proper relative manner to cause them to co-act
in such a way as to perform the various operations in the required succession, and
at the required intervals.
In the accompanying drawings, Figures 1 to 5 inclusive, show various views of
the machine, omitting the griping attachment; Figures 6 to 10 are illustrative of
the construction and mode of operation of the griping attachment; Figures
11 and 11 a are enlarged perspective views of the well-frame; Figures 12 to 18
inclusive, various views of the boxes operating the heel and toe slides; Figures.
19 to 22, detailed views, on an enlarged scale, of the retractile upper guiding
device; Figures 23 and 24, detailed views, on an enlarged scale, of the construction
of the cam-faced carriage and levers; Figures 25 to 29, are detailed views, on an
enlarged scale, of various portions of the griping mechanism.
The first operation for which the machine is employed, is that of receiving and
supporting the last and upper in proper position. This is done by sliding the heel
end of the last over and upon a vertical pin 44, (Figures 1, 3, 4 and 5), which
enters and fits a corresponding hole at this part of the last. The toe of the last is
placed upon the vertical rest 43, (Figures 1, 3 and 4.) Both these parts 44 and 43
are mounted upon double wedge blocks 41 and 42, the under block in each case
being screw-threaded, to receive a right and left threaded rod 40, the turning of
which causes the upper block to rise or fall together, other motion of these blocks
being prevented by the pins and slots shown. The distance apart of the heel and
too-supports, is regulated by moving apart or together the sliding well-frames 33,
in which the heel and toe-supports are placed. As this means of adjustment is also
employed for making other adjustments, it will be described later when those
adjustments are considered.
The last and upper being supported as described, it is desirable that the edge of
the upper at the toe of the last should be made to assume a certain relative vertical
position, so as to be afterwards engaged by the pinchers or gripers. This is accom-
plished by means of the adjustable guide or piece 50, shown in detail at Figures.
19 to 22. This piece 50 has also the feature of being made retractible, to
accommodate itself to certain operations which take place later in the course of the
lasting, and this feature will be explained more in detail hereafter.
The last and upper and the toe of the upper being now in position, the next
operation in order is the seizing and drawing upward of the edges of the upper, by

page_text: means of suitable overhanging pinchers. The mechanism provided for this purpose,
is illustrated in Figures 6 to 10, and Figures 27 to 29. For convenience of
manipulation, this gripping mechanism is so arranged as to be readily brought up
to or away from its place of work, and I will first describe the means by which this
is accomplished. The gripping mechanism is provided with an attachment con-
sisting of a jointed and socketed arm shown in Figures 6 and 7. The socket in
the arm is adapted to fit upon a spindle or pin or standard 60, (shown in
Figures 4 and 5,) around which the arin carrying the griping mechanism may be
swung. By means of the joints 61 in this arm, the griping mechanism can be
moved hackward and upward, so as to be brought up to and suspended upon &
hook 64, or lowered down to its place of working. Furthermore, by means
of the pin and slot 62, the griping mechanism can be raised or lowered
vertically.
The griping mechanism itself contains the following features, first: a plate or
support adapted to rest upon the inner sole; next: a series of pinchers arranged in
a curved line, substantially that of the edge of the upper, provided with mean for
separately regulating the amount of bite with which each pincher shall take hold,
and also with mechanism permitting the regulated motion of each pincher toward
or away from the central line of the last, and also with mechanisin for causing tho
regulated upward pull of each pincher, and also with mechanism for simultaneously
releasing the gripe of the pinchers. For centering the griping mechanism in its
place over the last and upper, it is provided with legs 65, which enter sockets 65 a,
(as shown in Figure 1.) will now describe these various mechanisms in detail,
pointing out the function of each, in the successive operations which the mechanism
as a whole takes part in.
The edge of the upper being already in the proper position, the griping attachment
is brought over and set so that the plate 71 rests upon the last and inner sole, and
the legs 65 enter the sockets 65 a. Each pincher is then caused to seize, with a
regulated power, the adjacent part of the edge of the upper. This is accomplished
as follows:
To the outer jaw 82, (Figures 27 to 29,) of each pincher are fastened two spring
rods 83, 84, one on either side of the pivot around which the jaw turns in opening
and closing, the inner rod 84 being made flexible at its lower extremity, as shown.
The regulating of the amount of gripe of each pincher, is accomplished by means
of the springs surrounding the rods and the thumb-nuts at their ends. The length
of the inner spring rods is further adjustable by making them in two parts con-
nected with a right and left-threaded sleeve, as shown. By means of these
separate adjustments, I am enabled to regulate the amount of gripe of the
pinchers individually, so that each pincher may gripe the upper with such a
regulated amount of force as may be required at that particular part of the upper
in the operation of lasting.
The gripe of each pincher having been properly adjusted in this way, the
pinchers are simultaneously closed upon the edge of the upper by turning the
screw-rod 76, which carries up the box 77, and the inner spring-rods 84, and thereby
closes the pinchers. The upward or downward motion of the outer spring-rod 83,
and the corresponding motion of the inner spring-rod 84 attached to each pincher,
inay be simultaneously accomplished by reason of the fact that all the inner spring
rods are connected with the box 77, (Figures 6, 7, 9 and 10), which may be moved
upward or downward by means of the screw-rod 76, and its operating wheel, and
such motion of the box 77 and the inner spring rods 84, produces a corresponding
opposite motion of the outer spring rods 83.
The pinchers having now all seized the upper with properly regulated tension,
the next step is to draw upward the upper simultaneously, while preserving the
desired amount of tension for each pair of pinchers. This is done by causing the
frame which carries all the pinchers, to rise, and this motion is given to it by means
of the screw-rods 70, socketed in the plate 71, and turned together by means of the
wheel 75, and intervening gearing 72, 74. These same screw-rods 70 pass through

page_text: screw-threaded portions of the box 78 and the frame 79. The rods turning freely
upon the plate 71, it is obvious that power applied to the wheel 75 and exerted
ngainst the fulcrum furnished by the plate 71 and the last, will cause the weight,
that is, the frame 79 and the box 78, to rise, and thereby carry up the closed
pinchers and draw up the upper all around as described, at the same time
preserving, in each pincher, its regulated individual grip or tension.
The upper being thus drawn up and held as describeil; that is to say, by a series
of pinchers, each having a regulated grip, and each capable of swinging inward
toward the center of the last against a regulated resistance, the next operation is
to bring the edge of the upper over and upon the last and inner sole into tho
form in which it is to be when the lasting is finished. This is done, first, at the
heel and toe, and afterwards at the sides, and the mechanism employed is as follows:
Power applied to the pulley 1, is transmitted by means of the shaft 2 and the
pinion 3 to a gear 4, mounted upon a second shaft 5, which carries an eccentric 6.
This eccentric travels within the interior slot of a U-shaped arm 7, mounted at
one end upon a stationary axis, and provided at its other extremity with teeth
which engage with a rack 8, (Figures 4, 5, and 23.)
5
This rack carries a carriage provided with cam-faces 9, and guided in its upward
motion by the guide-rods 8 a. There are three of these cam-faces on two sides of
the carriage, and one each on the remaining two sides. Each cam-face as it rises,
bears against a friction roller 10 upon a cam-faced arm 11, and each cam-faced arm,
in turn, bears with its cam-face against a friction-roller 17 upon the end of a lever,
which is thereby thrown outward at the bottom, around its hinged fulcrum 19, as
the carriage riscs.
It being desirable that the work done by the heel and toe slides upon the upper,
should be completed before the work of the side slides upon the upper begins, the
inclination of the various cam-faces upon the carriage, is regulated accordingly.
All the slides being open to their furthest extent when the upward motion of the
carringe begins-those of its cam-faces which bear against and operate the levers
connected with the heel and toe slides, act first. There are three of these levers to
work the heel slide, and the same number to work the toe slide, (see Figure 24.)
The three cams for a certain length of their face, cause the three levers, during a
certain portion of the upward movement of the carriage, to advance at an equal
rate of speed; but the central cam of the three, 9 a, for the rest of its length,
being of quicker pitch than the others, a more rapid motion is thereby given to its
lever 18 a, during the second part of the upward motion of the carriage. The
object of this construction is as follows:
The two
It has been said that the operation of lasting the upper at the heel and toe, is a
compound one which includes both the straining of the upper over the last in the
direction of its length, and also the sweeping of the upper radially inward over
the heel and toe of the last with a curvilinear motion toward the center of the heel
or toe. To accomplish this, the heel slides and similarly the toe slides, are mounted
upon a bex 32, (see Figures 12 to 16 and 18,) which slides upon the upper edges of
the well-frame 33, (see Figures 11 and 11 a.) Within this box 32 is placed a
second slicing box 32 a, (see Figure 17.) provided with ribs 32 b entering and
guided by the slots 32 c. on the under side of the top of the box 32.
outer levers bear upon the box 32, the central lever bears upon the box 32 a. So
long as these three levers are operated at the same speed, the two frames advance
together, and this advance produces simply the forward motion of the heel slides,
(or of the tue slides as the case may be,) and consequently when these slides meet
the upper, causes them to press or stretch it straight over the last in the direction
of it longest axis. The heel and toe slides, however, in addition to this movement
which they have in common with their supporting boxes 32, are also so mounted,
(see Figures 1, 3, and 12 to 14,) as to be capable of a curvilinear motion around a
center in the line and midway of their curved working faces, and by means of
suitable gearing which connects these slides and the under box 32 a, any difference
between the rate at which this box and the box 32 which carries the slides,

page_text: advances, will impart a rotary motion to the slides themselves upon the upper face
of the box 32, by means of the intervening gearing. In this way, the second
motion whereby the upper is swept radially over and upon the heel or toe of the
last in the direction of the center of the heel, or toe, is obtained-and it is obvious
that if the forward motion of the two boxes 32 and 32 a, as well as the advancing
motion of the box 32 a over the box 32, is simultaneously kept up, the direct
action of the slides upon the upper, as well as their radial or curvilinear or
sweeping action, will be accomplished at the same time.
During the first part of the upward motion of the carriage 8, the three levers,
and consequently, the two boxes have advanced simultaneously, and this continues
until the heel slides, (or the toe slides as well,) have come in contact with the
upper. At this point, the increased pitch of the central cam on the carriage begins,
and during the residue of the time that the cams are acting, the box 32 is
advancing and carrying the heel slides, (or the toe slides,) forward over the last in
the direction of its central line and conterminously with this accelerated motion.
of the central lever, is advancing the box 32 a over the box 32, and thereby
rotating the heel slides, (or the toe slides,) and causing them to sweep the leather
of the upper over and upon the heel, (or the toe) of the last, as before indicated.
The motion of the side slides is a simple straight inward motion toward tho.
central axis of the last; consequently but a single cam and lever is employed to
operate each side slide. It is desired that the inward movement of the upper by
the side slides towards the central line of the last, should follow the lasting of the
heel and toe. The cams, therefore, which operate the side slides, have their relative
pitch or bulge so constructed that the inward motion of the side slide and upper
toward the central line of the last begins substantially when the lasting of the heel
and toe ceases.
It follows from the above, that the effect of the upward motion of the cam-faced:
carriage and intermediate parts, is to produce, first, the compound lasting motion
desired to last the heel and toe, and then the simple lasting motion desired to last
the sides of the upper. When both these things have been done, the upward
motion of the carriage ceases to impart further motion to the lasting alides, but
it is continued for a further purpose which will now be explained.
The upper being lasted or laid in, proper position over and upon the last and
inner sole it is desired to retain it in that position temporarily, until it may be
finally secured. This temporary holding of the lasted upper in position, is
accomplished by the residue of the upward motion of the carriage, which is
provided at its top with an adjustable bearing 8b, which strikes against the
last supporting devices, and carries them and the last upward, until the edge
of the lasted upper is firmly clamped between the last on the under side, and the
edges of the heel, toe and side slides on the upper sides. The consequent slight
upward motion of the griping attachment is allowed for by the slotted formation
of its arm, as illustrated at 62, Figure 6.
The machine is now stopped by releasing the clutch at the pulley 1, and
the gripe of the pinchers upon the upper relaxed. The simultaneous relaxing of the
gripe of the pinchers is accomplished by means of an arm 81, (see Figures 25.
and 26,) disengaging the pawl 92 from the ratchet 93, and thereby freeing the
coiled spring 94, connected with the screw-rod 76. This spring had been tightened
by the revolution of the screw-rod in the act of closing the pinchers, and had been
kept under tension by the pawl and ratchet. The pawl being now disengaged
from the ratchet, the tension of the spring revolves the screw-rod 76 in the
opposite direction and opens the pinchers. The griping attachment may now be
thrown back upon its supporting arm, and hung up upon the hook 64 to give
room for the operation of the devices by which the permanent attachment of the
lasted upper and inner sole is accomplished.
1
For this purpose, I prefer to employ a retaining strip provided with a conting of.
fusible cement, and I have accordingly embodied, in the machine, an apparatus for
applying this retaining strip, to secure the lasted upper and inner sole in place:

page_text: The retaining strip having been laid upon the lasted upper and inner sole, is caused.
to adhere to them by the application of heat and pressure, and I will now describe
that operation of the mechanism whereby these results are accomplished.
A second friction-pulley 20, operates by means of its shaft 21, duplicate sets,
(one at either side of the machine, see Figure 2.) of intervening gearing 22 and 23,
eccentrics 25, U-shaped, slotted, radial cams 26, and gearing 27, operating duplicato
racks 30, which carry the bridge or yoke 82 a. This bridge or yoke at its central
portion, which is over the lasted work is fitted to receive a suitable heating and
pressing device of ordinary construction and not shown, the bottom face of which
is adapted to be brought down upon and press the retaining strip. This corre-
sponds nearly in outline with the inner sole, but is a little smaller in area, so as to
be wholly concealed by the outer sole when it is afterward applied to the shoe.
This heating and pressing device having been put in place in the yoke, is brought
down together with the yoke, by means of the racks and connecting mechanism
just described, (the pressing surface having been previously heated to the
temperature required to fuse the cement on the retaining strip,) until it presses
the retaining strip against the inner sole and lasted upper fusing the cement upon
the retaining strip, and causing it and the iuner sole and lasted upper to be quickly
and permanently united. The continued action of the mechanisin now raises the
rack and lifts the bridge and the heating and pressing device, to its upper position,
whereupon this part of the mechanism is stopped, and the heating and pressing
device removed.
The shoe is now lasted and secured, and it remains only to remove it from the
machine. This is done by again setting in motion the pulley 1, which now nets
through the same mechanism as before, to cause the carriage and its connected
paris to descend, and the levers which carry the heel and toe and side slides, are
now made to move those slides backward or away from the lasted shoe. To ensure
this return motion of the levers, the carriage 8 is also provided with four laterally
projecting racks 12, (see Figure 23,) each of which gears with a pinion 13, whose
shaft supported by a standard 14, carries a cam 15, which bears against a pin 16 on
the lower end of the lever, and thereby forces the lower end inward, and conse-
quently its outer end outward, as the carriage descends. It is obvious that the
same racks, gears and cams are operated when the carriage rises; but under these
circumstances, they exert no effect, whatever, upon the levers, as will readily be
Been their sole object being to drive the lower end of the levers inward when the
carriage is descending.
The carriage now having come to the end of its downward motion, the heel and
toe and side slides are back to their original position; that is to say, as far
removed as possible from the last and lasted shoe, which may now be removed from
the machine by lifting it off the supports 44 and 43-the movement of the
machine being at the same time stopped until a new last and upper have been sot
into it, to commence again the lasting operation.
The time required for performing all the operations of lasting and securing the
work, as I have herein before described it, and by means of the devices herein
described, I have found in practice to be less than one minute.
Having now described, generally, the construction and operation of the various
parts of any improved machine, I will proceed to take up some of them more in detail.
The conjoined, simultaneous operation of the two screw rods 7, whereby the
pinchers, as a whole, are carried up or down, is accomplished as follows: The
upper ends of these two screw-rods pass through a connecting stay or bridge
piece 73, and are provided with nuts or caps, as shown. Upon each of these screw-
rods and at the upper part is a pinion 72. These pinions mesh with a gear 7+,
which is connected with and rotated by a wheel 75-both the wheel and the gear
being mounted upon a common shaft, which is made hollow to allow the screw
rod 76 to pass through it.
I have already referred to the adjustment apart, of the heel and toe support, by
accommodate different sizes of last. This adjustment, and also the adjustment t

page_text: which the throw of the heel and toe slides is regulated for the same purpose, is
obtained as follows:
-
The blocks which carry the toe-support and the two boxes which operate the toe
slides, rest upon a well-frame 33, which forms half of the well or chamber, in which
the last is placed. In the same manner, the heel support and the boxes which
operate the heel slides, are similarly within another corresponding half well-frame.
These two half well-franes slide upon cross-braces (see bolts and slots 48) so that
they may be separated by any desired distance, and the amount of their separation
may be made to be just that required for any particular size of last within the
capacity of the machine, by means of two right and left screw rods 45, (see
Figure 3), which, when turned simultaneously by means of the transverse rod 47
and the intervening gearing 46, separate or draw together, the two half well
frames to the proper distance for each size of last. Inasmuch as these half well-
frames carry the heel and toe slides, it is obvious that the adjustment of the well-
frames as described, will likewise adjust the heel and toe slides at the same time.
A further adjustment whereby the accurate bearing of the head of the lever which
occupies a constant position, as compared with the adjustable position of the slides,
is secured so that it will always bear accurately against its frame in any adjustment,
is obtained by means of the adjustable bearings 31 a mounted upon screws, by
turning which they can be brought forward or back, as may be required. The
adjustment of the side slides to correspond to the different sizes of last, is
accomplished by employing various slides for the various sizes-their mode of
adjustment with respect to their operating levers being the same as in the case of the
heel and toc slides. The adjustment apart of the heel and toe supports is made by
adjusting the well-frames, to which the upper wedge blocks are connected by pins
and slots as shown-the vertical adjustment is made by means of the screw rod 40,
as before explained. In order to permit the upward motion of these supports and
the last, to clamp the lasted upper temporarily against the under part of the slides,
this screw-rod, where it passes through the walls of the well-frame, and also where
it abuts at its end against the main frame of the machine, is left free to travel by
means of the slots, as shown.
The construction of the devices for operating the pinchers in the griping mechanism,
permits the adjustment of a single attachment of that character, so that it may be
used in lasting two or even three sizes of work. When a greater range of
adjustment is required, I provide several griping attachments, each having its own
range of sizes, and employing one or the other of them, as the work to be lasted
may require.
Figures 17 and 18 illustrato in detail, and on an enlarged scale, the relative
construction and mode of operation of the boxes 32 and 32 a, which give the
compound motion to the heel slides and toe slides. The inner box 32 a, which is
carried by the central lever, is provided on its upper face with guide-ribs 32 b,
travelling in the slides 32 c, on the under side of the top of the outer box 32. On
the corners of the box 32 a, are seen the racks 32 d, which engage with pinions 35,
(Figure 13), mounted on shafts which extend through to the top surface of the
box 32, and are there provided with the segmental gears 36, (Figure 12,) which mesh
with and operate the heel and toe slides 37, (Figure 1). These heel and toe slides
move over the top face of the box 32, and between it and an overlying frame or
yoke 38,
The construction of the device for adjusting the position of the upper at the toe,
is illustrated in detail and upon an enlarged scale in Figures 19 to 22. This
device consists of a semi-circular concave lip 50, mounted upon two rods 50 a,
which pass through slots in a vertical projection of the well-frame, and these rods
are free to travel laterally through the slots, thereby compressing the interposed
springs 50 b. The front edge of the curved lip which acts against the upper, being
set at the proper place by adjusting the length of the rod 50 a, by means of nuts as
shown, when the last is introduced and its toe placed upon the toe support, it

page_text: .
presses back the curved lip, which, in turn, after the last is down in position,
returns by the force of the spring 50 b, and so guides or presses the edge of the
upper slightly inward towards the center of the toe of the last. The curve lip
remains in this position until just before the last is lifted to temporarily clamp the
lasted upper in place, as already described, when the inner box 32 a, in its forward
movement, drives forward a rod 52, which presses the lever 53 against the curved
lip, and thereby forces it backward and out of the way of the upward motion of
the last and lasted upper, as they are brought up and clamped against the under
side of the slides.
The additional feature in the construction of the inner screw-rods 84, is shown
in detail at Figure 10, which is a cross-section of the central portion of the
griping attachment taken at right angles to that of Figure 9. By Figure 10, it
will be seen that the upper portion of the inner screw-rods 84, or that part above
the sleeve, is made in two parts; extending one by the other, each part provided
at its end with a shoulder, perforated to admit and allow the passage of the
opposite part, but the two shoulders acting as abutments to compress the
intermediate coiled spring surrounding the double or two-part rod at this part of
its length. It will be observed that by this connection, the working strain of the
rod 84 tends to compress its tension spring, and consequently the limited motion
that the rod 84 can have, will be reached when the spring is compressed together.
This construction has an obvious advantage over any in which the rod is free not
to contract, but to expand or lengthen its supporting spring; for, with a spring so
arranged, no such simple and convenient limitation of the motion of the rod will be
obtained.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is.
1. The combination with the two screw-rods 70, which raise and lower the
pinchers-carrying frame 79, (and the box 78,) of a single wheel 75, and suitable
intermedinte gearing 74, 72, whereby the two rods may be made to turn uniformly,
and so give uniform motion to the pinchers-carrying frame, substantially as set
.forth.
2. The combination of the screw-rods 70, the gear 72 and 74 and the wheel 75,
with the cross-frame or yoke 73, for supporting the upper ends of the rods,
substantially as and for the purposes described.
3. The combination with the screw-rod 76, of the wheel 75, provided with a
centrally perforated shaft, to admit the passage of the screw-rod 76 through it,
substantially as described.
4. The adjustable pincher-rod 84 herein described, consisting of two portions
provided with end abutments, enclosing a coiled spring, whereby the motion of
either portion of the rod along the other portion, tends to compress the coiled
spring, substantially as described.
5. The inner pincher-rod 84, herein described, provided with means substantially
as set forth, for varying its length, and also with adjustable devices of the character
herein described.
6. The pinchers-opening device herein described, consisting of a helical spring 94
compressed by the operation of the devices which close the pinchers, and provided
with suitable means substantially as set forth, whereby it may be released to
reverse the pinchers-closing mechanism, and thereby open the pinchers, all
substantially as herein described and shown.
7. The combination with a griper attachment, of a radial supporting arm
attached at one end to the griper, and slotted to engage with a suitable standard,
around which as a center, the griping mechanism may be swung to or from its
place of working, all substantially as set forth.
8. The herein described griping attachment for lasting machines provided with
-an extensible jointed support, by means of which it may be thrown backward and

page_text: and upward or forward and downward, to bring it to or away from its place of
working.
9. A griping mechanism provided with a vertically slotted supporting attach-
ment 62, of the character described, so as to permit the vertical uplifting of the
griping device, as and for the purposes set forth.
10. The combination, substantially as herein set forth, with the griping
attachment provided with the flexible support, of a suitable suspending device 64,
for holding the griping attachment up and away from the lasted shoe when
desired.
11. The combination with a removable griping attachment of centering arms or
projections 65 and suitable sockets 65 a to engage with said arms, and thus
adjusting the griping attachment in place, substantially as shown.
12. The cam-faced carriage herein described, having a suitable rack-formed
extension 8 whereby upward and downward motion may be imparted to the
carriage, all substantially as herein set forth.
13. In a lasting machine, the herein described means of operating the lasting
and cementing devices, consisting of an eccentric working within an interiorly
slotted U-shaped, pivoted arm, provided with teeth adapted to engage with and
raise or lower a rack, all substantially as herein described and for the purposes set
forth.
14. The combination with the shaft carrying a suitable driving pulley 1, and
of the gears 3 and 4, shaft 5, eccentric 6, pivoted, radial, vibrating, slotted arm 7,
and rack 8, carrying a suitable cam-faced carriage.
15. The combination with a shaft 21 having a suitable driving pulley 20 of the
gears 22 and 23, shaft 24, eccentrics 25, radial, slotted, vibrating arms 26, tho
gears 28 and 29 and the racks 30, attached to and carrying a beam 82 a, adapted
to receive and raise or lower a cement fusing tool.
16. The means of obtaining the compound motion of the heel or toe-slides herein
described, consisting essentially of an advancing support 32 carrying the said slides
forward, and a second or subsidiary support 32 a having a motion past the first
support, the heel and toe slides being carried by one support, and being geared
to the other, whereby the differential motion of the two supports rotates the
advancing slides.
17. The combination of the slotted well-frame 33, right and left screw rod 40,
and double wedge blocks 41, 42, carrying the heel and toe supports, all substantially
as herein set forth and for the purposes described.
18. In a lasting machine, the combination with the levers 18, 18 a for moving
the heel, toe and side slides, of the double adjustable bearings 31 connected with
said slides, whereby is insured the accurate bearing of the head of the lever with
the slides during their various adjustments for various sizes of lasts, all substantially
as herein set forth.
19. In a lasting machine the combination with the levers which operate the
heel, toe and side slides of the retracting mechanism herein described, consisting of
the gear wheels 13 supported by standards 14, driven by the racks 12 on the
carriage 8, and operating the cams 15 which engage with pin 16 on the lower ends
of said levers to throw the said lower ends inward, as described.
20. In a lasting machine the yielding upper leather guide, herein described,
consisting of the concave lip 50, with its adjustable rods 50 a and interposed
springs 50 b, substantially as and for the purpose herein before set forth.
21. The combination with the adjustable upper leather guide herein described,
of the lever 53 and rod 52, whereby the upper leather guide is retracted at the
close of the inward motion of the lasting slides, for the purpose and in the manner
herein set forth.

page_text: 22. The combination with the outer jaw 82 of the pinchers, of a griping device.
for lasting machines, of the rigid rod 83 attached to the outside and the flexible
or jointed rod 84 attached to the inside of said jaw, substantially as herein set
forth.
AJ NATambow 188.1
HASELTINE, LAKE & Co.,
For the Applicant.