Improvement in Lasting Machines.
Year: 1889

page_text: Date of Application, 7th May, 1889-Accepted, 15th June, 1889
[[Communicated from abroad by ALFRED DOLGE, of New York, United States
of America, Manufacturer.]
Improvement in Lasting Machines.
I, JOHN HENRY JACK, of 1 Furnival Street, Holborn, in the County of Mildlesex,
Engineer, do hereby declare the nature of this invention and in what manner the same
is to be performed, to be particularly described and ascertained in and by the following
statement
This invention relates to an improvement in lasting machines and by means of this
improvement the upper can be rapidly and accurately secured to the insole as set forth
in the following specification and claims and illustrated in the accompanying drawings,
in which:
Fig. 1 is a side elevation of a lasting machine partly in section
Fig. 2 is a front elevation of figure 1 partly in section.
Fig 3 is a plan view of figure 1.
Fig 4 is a detail sectional view of a last and friction piece on a larger scale than
figure 1.
Figs 5 and 6 are views similar to figure 4 with parts in a different position than in
figure 4.
Fig. 7 is a section along the line x x fig. 4.
Fig 8 is a detail view of cams.
Fig 9 is a side elevation of a modified form of jointed arm or shoe.
Fig 10 is a plan view of figure 9.
Fig 11 13 a slide elevation of a friction piece for the shoes of figure 9.
Fig 12 is a plan view of figure 11.
Fig 13 is a side elevation, partly in section of a holder or sleeve for the friction
piece of fig. 11
Fig 14 is a plan view of figure 13.
Fig 15 is an end view of a shoe
Fig 16 is a side elevation of a friction piece mounted in its holder.
Fig. 17 is a plan view of figure 16
Similar letters indicate corresponding parts
In the drawings the letter a indicates a base or support and bis the main shaft
baving a worm wheel c (fig 1) gearing into a suitable worm on the driving shaft d
having the pulleys e e One of the pulleys e is fast and the other loose, so that by
suitably shifting a driving belt (not shown), the shafts & b can be rotated or allowed
to come to rest. The shaft carries a cam A abutting against a roller B on the
connecting rod C. As the rod (is oscillated by the cam A, said rod oscillates the
arm fand the arm or lever g h connected to the arm f. The branch h of the lever gh
holds down the last and the oscillations of the lever g h permit the last to alternately
rise and fall. The branch g has a screw by which the pressure of lever g h on last k
can be regulated.
The last rests on a spindle F. and said spindle is yieldingly supported by the spring!
located in the housing K. Said spring allows the lever oh to depress the last and
when the pressure of the lever g h is removed, the spring moves the last back to its
original position. The spindle F carries a sleeve L which can be clamped or adjusted
by the screw at any suitable point along the spindle The sleeve L has an arm V
carrying a too support N for supporting the toe of the last. By setting the sleeve L
higher or lower, the toe of the last will be adjusted higher or lower as may be
suitable Further adjustment of the arm V can be secured by the screw y engaging
the branch to of the arm V the actuation of the screw y being adapted to adjust the
arm V about the pivot z supported by the sleeve L.

page_text: The main shaft carries a cam which cam in the drawing consists of two corre-
sponding parts D¹ D (Figure 1) The movements of the cam D' D³ oscillate the
sliding flange E. The housing K is shown as serving for a guide for the flinge E.
Part of the flange Ę is removed and is filled in by the filling piece S held in place by
the screw T As the flange E rises and falls it oscillates the levers or arms o about the
⚫ fulcra q
The arms o have set screws p against which the flange E and filling piece S
strike The arms o are connected to the branches or arins r, and as the flange E and
filling piece S rise, the free ends of the arms are pressed toward the last. The
arms when made of spring metal can be pressed toward the last without danger of
breakage.
The spring arms carry friction pieces provided with a shoe or jointed arm u and
with a prong or prongs t
The last is provided with an insole m (Fig. 4) suitably
tacked or secured to the last, and with an upper n As the last descends and the
spring arms are pressed toward the last the shoe gradually presses the upper
against the insole (figs 5 and 6) and the prongs hold the upper in engigement
with the insole. The insole and upper can then be secured to one another by suitable
means, such as tacking or by allowing a suitable adhesive or cement with which the
inable or upper has been supplied to become set so as to secure adherence of the upper
to the insole.
The friction pieces s can be adjusted or clamped at a suitable point along the arms r
by the adjusting or clamping screws O.
The pivots or fulcra of the arms are mounted in bearings or lugs R (figure 1)
supported on a plate M which rests on the plate H. Said plate H is shown as resting
on the housing K The plate M is shown as being in sections 1, 2, 3, 4, 5. Section 1
is fixed to the plate H Section 5 is held in place by an adjusting screw or bolt I
passing through a slot J in section 5. The sections 2, 3, 4 are removeable and by
removing one or more of the removeable sections and setting the section
section 1, the device is adjusted for a shorter Inst. As the section 5 is set nearer to
the section 1, the filling piece S is correspondingly adjusted by fixing the screw T at a
proper point along slot G.
nearer to
The action of the cams A D¹ D2 is illustrated in figure 8. When the point 3 (fig. 8)
of the cams is in action then the parts occupy the position shown in figure 5, and
when the point 4 (figure 8) is in action then the parts occupy the position shown in
figure 6.
The prongst instead of being formed on the friction pieces s can be formed on the
shoes or jointed arms as seen in figure 9. By mounting the friction pieces in a
sleeve or hollow holder a¹ and locking said friction piece loosely by the key the shoe u
is free to swivel to some extent as indicated in figure 15 thus enabling the shoe to
adjust itself snugly to the last while drawing the upper into position and holding it
against the insole. The holder a' has an eye c¹ to receive the arm r and a set screw d¹
enables the holder to be properly adjusted on arm r.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim 18.
1. In a lasting machine, the combination of a support carrying a last, a series of
swinging levers having fiction shoes to press the upper inward upon the insole, arms o
for swinging the levers, and a reciprocating flinge E for actuating said arms, substantially
as described.
2. In a lasting machine, the combination with a last support, of a series of swinging
levers carrying friction shoes, arms o for swinging the levers, a moveable flange É
for actuating the arms and a rotary cam for operating the flange, substantially as
described.
3. In a lasting machine, the combination with a last and mechanism for lasting the
upper, of a yielding last supporting spindle F and a sleeve L secured directly to the
spindle and adjustable along the same, and having a last toe support pivoted to said
sleeve, substantially as described.

page_text: 4 In a lasting machine, the combination with a last and mechanism for lasting the
upper of a yielding last supporting spindle F, and a sleeve L secured directly to the
spindle and adjustable along the same and having a pivoted arm V, provided with a
last toe support N, substantially as described.
5. In a lasting machine, the combination with a last and levers having friction
pieces, of an under plate H and a supporting plate M for the levers, arranged on the
under plate and composed of an adjustable soction, and a removeable and replaceable
section or sections, substantially as described
6. In a lasting machine the combination with a vertically moveable last of a recipio-
cating arm, provided with an adjustable lever g h, for holding down said list and a
connecting rod C, and actuating cam A, connected to sud arin f, substantially as
described.
JOHN HENRY JACK.