Improvements in Inseam Trimming Machines for Use in the Manufacture of Boots and Shoes.
Year: 1894

page_text: Date of Application, 22nd Jan., 1894-Accepted, 10th Mar., 1894
COMPLETE SPECIFICATION.
Improvements in Inseam Trimming Machines for Use in the
Manufacture of Boots and Shoes.
I, SAMUEL HEY of Keighley in the County of York, Patent Agent, do hereby
declare the nature of this invention, as communicated to me from abroad by
George Henry Peck Flagg of Boston, Massachusetts, United States of America,
Gentleman, 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 machines for trimming off the surplus edges of the welt
and upper of a welted shoe, preparatory to the attachment of the outer sole, and it
consists in the improvements which I will now proceed to describe and claim.
Of the accompanying drawings, forming part of this Specification;
Figure 1 represents a side elevation of my improved inseam-trimming machine.
Figure 2 represents a front elevation of the same.
Figure 3 represents a section on line 3-3, Figure 2.
The same letters of reference indicate the same parts in all the figures.
In the drawings;
a represents a supporting standard, to which is affixed a head a', supporting a
shaft to which the rotary cutter c is affixed, said cutter being formed to remove the
surplus edges of the upper d and welt e of a welted shoe, when the latter is
presented to the cutter, substantially as shown in Figure 1.
f represents a feed-wheel which is rotatable independently of the cutter c, and is
adjustable to a limited extent independently of said cutter the feed-wheel being
mounted upon a tubular sleeve f¹, which is fitted to rotate upon a tubular bearing f³,
formed on a vertically-adjustable plate f³, mounted to slide on ways or guides on
the head a¹. Through the bearing 2 passes the shaft c' that drives the cutter c,
said tubular bearing being of sufficient internal diameter to permit a limited vertical
adjustment of the feed-wheel. The plates and the feed-wheelf may be adjusted
by means of an adjusting-screw f, engaged with an internally-threaded lug fon
the plate 3, said screw being connected with the head a', as shown in Figure 3, and
provided with an operating handle ƒ at its upper end.
The feed-wheel is driven by gears gh, (affixed respectively to shafts g' h¹ shown
in broken lines Figures 1 and 2), and a smaller gear i affixed to the shaft h' and
meshing with a larger gear j affixed to the sleeve f' of the feed-wheel.
The cutter is driven by a driving-belt k, running on a pulley k¹ affixed to the
cutter-shaft c¹.
m represents a rest, which supports the welt e and holds the same against the
feed-wheel. Said rest is preferably a disk of frusto-conical form, mounted to rotate
loosely on an arm m' affixed to a slide m², which is movable vertically on fixed
guides on the head a', and is pressed upwardly by a spring m³, so that the rest m
presses the welt e upwardly against the feed-wheel. The slide m² may be
depressed to move the rest away from the feed-wheel and permit the insertion and
removal of the welt by means of a rod m', connected with the slide m² at its upper
end, and at its lower end with a treadle (not shown), adapted to be moved by the
operator's foot. It will be seen that the feed-wheel is arranged to bear upon the
outer portion of the welt, and that the rest co-operates with the feed-wheel in
grasping and feeding the welt forward, the cutter being arranged at one side of
the feed-wheel, so as to act upon the inner edge of the welt and the corresponding
edge of the upper, where they project above the inner sole n.
o represents a vertically-movable slide, which is movable in a guide p, having an
arm ³, which is rigidly connected to au ear or bracket p³ on the plate f³. The

page_text: rod o has at its lower end a guard o¹, here sis was a milled disk, arranged to bear
upon the upper surface of the inner sole at a point near the outer side of the cutter,
said guard limiting the upward movement of the shoe and preventing the cutter
from injuring the stitches that connect the welt and upper to the inner sole. The
slide o and guard o' are normally pressed upwardly by means of a spring o²,
interposed between the upper end of the guide p and a nut o³ affixed to the slide o.
The guard o may be depressed by means of a lever q, pivoted at g' and bearing
at one end on the upper end of the slide o; a rod 2, passing through the opposite
end of the lever 9 and having an adjustable nut 93 bearing on the under side of
said lever; and a treadle (not shown), connected with the lower end of said rod,
said treadle being arranged to be moved by the operator's foot so as to impart an
upward movement to the rod, and through the latter and the lever g downward
movement to the slide o and guard o'. The operator is therefore enabled to quickly
change the vertical position of the guard o'.
It will be seen that the described provision for adjusting the feed-wheel vertically
enables the depth of cut into the projecting edges of the welt and upper to be
regulated as may be desired.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1st. In an inseam-trimming machine, the combination of the rest, the feed-wheel
located above the rest and adjustable relatively to the rest, and the cutter located
at one side of the feed-wheel, as set forth.
2nd. In an inseam-trimming machine, the combination of the rest, the feed-wheel
having a tubular sleeve, the adjustable plate having a tubular bearing supporting
said sleeve, the cutter-shaft passing through said tubular bearing, and the cutter
affixed to said shaft and located at one side of the feed-wheel, as set forth.
3rd. In an inseam-trimming machine, the combination of the rest, the feed-wheel,
the cutter, and the guard adapted to bear upon the shoe, as set forth.
4th. In an inseam-trimming machine, the combination of the rest, the feed-wheel,
the cutter, the guard, the slide supporting said guard, a guide for said slide, a spring
which normally raises the slide and guard, and means substantially such as the
lever 9 and rod y' whereby the slide and guard may be depressed.
Dated this 20th day of January 1894.
SAMUEL HEY.