Improvements in or appertaining to Lasting Machines.
Year: 1890

page_text: Date of Application, 23rd Sept., 1890-Accepted, 15th Nov., 1890
COMPLETE SPECIFICATION.
Improvements in or appertaining to Lasting Machines.
A communication from abroad by THE ROCHESTER LASTING MACHINE COMPANY (a
Company organized under the Laws of Minnesota), of Rochester, State of New
York, United States of America.
I, WILLIAM PHILLIPS THOMPSON F.C.S. M.I.M.E. of the Agency for Foreign
Patent Solicitors 6, Lord Street, Liverpool and 6, Bank Street Manchester, both in the
County of Lancaster & 323 High Holborn, in the County of Middlesex, Civil
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 lasting machines and has reference more particularly to the
construction of the pincers that take hold of the upper and stretch the same over the
last; and also has reference to the construction and arrangement of the stock or
support for the pincers.
The invention herein set forth is designed more particularly for application to the
lasting-machine for which Letters Patent No. 11379 were granted to William Phillips
Thompson, a communication from W. S. King, dated August 7th 1888, and held in
trust for the said W. S. King. The invention is, however, susceptible of use in a variety
of lasting-machines.
In the drawings
Figure 1 is a perspective view of one of the pincer-supports with its pincers.
Figures 2 and 3 are enlarged sectional views illustrating certain details of the
apparatus shown in Figure 1.
A, indicates a frame which, in the present instance, is represented as the swinging
head or frame of the patented machine before referred to; B the pincers; and C Ci
the supports for the latter which are secured to the frame A in a manner hereinafter
described.
The jaws a b of the pincers are pivoted to the forward end of a stem c, and are held
normally separated by means of a spring d, placed between their working faces. The
stem c is slotted to receive a block e which, as shown, is connected at one end with an
operating rod D, in such manner that, when the rod is reciprocated (by any suitable
means), the block will be turned or rocked upon its pivot, and, acting upon the tails
of the jaws a b, force their working faces together and cause them to clamp the
exposed edges of the upper preparatory to stretching.
The rear or inner end of the stem centers and is clamped firmly to a tubular slide E,
which, in turn, works within a tubular shell or casing F, a coiled spring G being
interposed between the inner end of the slide and the bottom of the recess or cavity
made in the shell. At its outer end the shell or casing F is threaded externally to
receive a thumb nut H, and is slotted as at f to receive a key g, which passes, not
only through the slot in the shell, but also through a slot h, made in the slide E, the
key projecting from both sides of the shell or casing and engaging a washer i upon or
encircling the shell. A coiled spring I encircles the shell, and bears at its opposite
ends against the thumb nut and the washer, and it will be seen that by turning the nut
the tension of the spring I may be varied and controlled.
As the slide E (with the pincers attached thereto) is pulled outward, the rear wall
of its slot h will come in contact with the key g and carry the key and washer i with
it, and as the key moves through the elongated slot fin the shell, the spring I will be
put under compression; thereby allowing or permitting each of the pincers to yield
and accommodate itself to the work to be done, which cannot be accomplished where
a rigid and unyielding support is provided for the pincers. The spring G at the rear
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page_text: end of the slide E urges the latter outward and tends to keep the rear wall of the
sloth in contact with the key g; but at the same time the spring is not so strong as
to prevent an inward movement of the slide, in case the end of the pincers should
happen to come into contact with the face of the last.
Shell or casing F is hinged or pivoted at its inner end to a block J, so as to permit
the pincer-supporting arm to swing inward horizontally in order that the pincers may
be brought into proper position to grasp the upper; the position of the exposed edges
of the latter varying according to the width of last used.
A spring K secured to the block J, bears against the side of the shell or casing and
tends to keep the latter at right angles to the block, the force of the spring being
overcome when it is desired to move the shell, or, more properly, the pincers and its
supporting arm, inward, upon or relatively to its pivot.
In order to thus swing the arm C inward toward arm C¹, a rod or stem j is
employed, which is headed at one end and threaded at the other, the said rod passing
through a lug g, formed upon the shell or casing of the arm C.
Fitting upon the threaded end of the rod j, outside of an arm or bracket r
secured to block J, is a thumb nut k, by turning which the arm C will be drawn
inward toward the armi C.
Arm C¹ is moved inward toward arm C by means of a set screws, passing through
the arm or bracket and bearing against the arm C¹.
The blocks J are provided on their rear faces with a lug l, which is adapted to
work in a dovetail groove m, formed in a cross-bar L, which carries two pincer-
supporting arms or stocks C, (".
These lugs m m are tapped and threaded in roverse directions to receive a right-and-
left screw M, as shown in Figure 2; the said screw being provided with a thumb nut, n,
which bears against the end of the cross-bar L.
By turning the screw M, the blocks (J), and the arms carried thereby, will be caused
to approach or recede according to the direction of rotation, and by turning the thumb
nut both blocks and the arms carried thereby will be caused to move equally and
simultaneously in either direction without changing their relative adjustment.
The frame A, which has been before referred to, is provided with an upright slotted
bar N, to which all the cross-bars L and attendant parts are secured; and, in order
to provide for the raising and lowering of the cross-bars upon or relatively to the said
slotted bar, each of the cross-bars is provided with a lug o, to project through the
slotted bar to receive an eccentric or equivalent clamp p.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondents, I declare that what I claim is :-
1. In combination with a stem c; jaws a, b, pivoted thereto and provided each with
a tail; a block e pivoted to the stem and disconnected from the jaws; and means for
operating the block whereby it is adapted to bear against the tails of the jaws and
spread said tails apart, substantially as shown and described.
2. In combination with a stem c; jaws a, b, pivoted thereto and provided each with
a tail; a spring d placed between the jaws; a block pivoted to the stem; and means
for operating the block.
3. In combination with a slotted stem c; jaws a b, pivoted thereto, and provided
each with a tail; a block e pivoted in the slot in the stem and adapted to act upon the
ails of the jaws; and means for actuating the block.
4. In combination with a support, a pincers-supporting arm or stock provided with
pincers, and hinged or pivoted to its support, so as to permit the pincers-supporting
arm to be swung laterally for the purpose set forth.
5. In a lasting machine, an extensible pincers-supporting stock, in combination with
pincers carried thereby, all substantially as shown.
6. In a lasting machine, the combination with an extensible pincers-supporting
stock, of pincers carried thereby, and a spring governing the extension of the stock.
7. In a lasting machine, the combination with a case or shell, of a slide mounted

page_text: therein and provided with pincers, and a spring behind the slide adapted to permit the
pincers to move inward, for the purpose set forth.
8. In a lasting machine, the combination, with a case or shell, of a slide mounted
therein and provided with pincers, a spring adapted to yield to allow the pincers to
adjust themselves to their work, and a second spring adapted to permit the pincers to
be moved inward relatively to the stock.
9. In combination with slotted shell F; slotted slide E, provided with pincers, a
key g passing through the parts E, F ; and a spring G bearing at one end against the
key and at the other end against a shoulder on the shell.
10. In combination with slotted shell F, threaded externally at one end; slotted
slide E provided with pincers; a key g, provided with lugs or bent ends and passing
through the parts E, F; and a nut screwing onto the end of shell F, a washer
encircling the shell and in engagement with the key; and a spring encircling the
shell and bearing at one end against the washer and at the other end againt the nut.
11. In a lasting machine, the combination, with an upright support, of a cross-bar L,
carried thereby and a pair of pincers-supporting arms movable horizontally across the
face of the bar, and provided with pincers, and means, substantially as shown, for
moving or adjusting the arms separately or together.
12. In a
lasting machine, the combination with a bar L, provided with a dovetail
groove m, blocks J provided with tapped lugs 1; screw M engaging the lugs; and a
thumb nut n bearing against the end of the bar.
13. In a lasting machine, the combination, with an upright slotted frame, of a
cross-bar provided with a lug to project through the siot in the frame, and provided
also with pincers and their supporting devices; and a clamping device adapted to
clamp the cross-bar to the slotted frame.
14. In a lasting machine, the combination, with a support L common to two or
more pincers, and separate supports for each pincer, of pincers-stocks carrying pincers
and jointed to the separate supports by a hinge or equivalent joint, and means,
substantially as described, for separately moving the pincers-stocks inward toward
each other.
15. In a lasting machine, the combination, with a suitable bar, or support having
an arm or bracket; of jointed pincer-supports carried by the bar; a rod secured to
the further support and to the bracket, and provided with an adjusting nut, and an
adjusting screw carried by the bracket to adjust the near supporting arm.
Dated this 22nd day of September 1890)
WM. P. THOMPSON & Co.,
Agents for the Applicant.