Improvements in or relating to Machines for Bunking Wheeling.
Year: 1896

page_text: Date of Application, 27th Oct., 1896
Complete Specification Left, 31st Mar., 1897-Accepted, 22nd May, 1897
PROVISIONAL SPECIFICATION.
Improvements in or relating to Machines for Bunking
Wheeling.
от Stitch
and
I, WALTER JACKSON, 54, Burley's Lane, Leicester, Engineer do hereby declare
the nature of this invention to be as follows:-
This invention has reference to an improved construction of machine to be used
in performing the two operations of bunking and stitch wheeling the soles of boots
and shoes.
The machine to be described, is constructed with the operating tool (i.e. either
the bunking tool or stitch wheel) removably connected thereto so that when it is
desired to change from one process to the other (viz. from stitch wheeling to
bunking or vice versa) the one tool may be removed and the other tool inserted in
its stead.
The shank of either of the said tools is inserted into a tool carrier plate, and
immediately under the said tool when fixed in position is a revoluble guard plate
or roller suitably supported and connected by a spring controlled rod or lever or
levers to a foot pedal.
Upon the operator placing his foot upon and depressing the pedal the revoluble
guard plate is lowered to permit the edge of the sole to be inserted between it and
the bunking tool or stitch wheel and upon the operator removing his foot, the
revoluble guard or roller under the influence of the spring rises and clamps the edge
of the sole between it and the tool.
By moving the boot to and fro while in the position named the necessary
impressions or indentations will be made.
In order to deepen and to burnish the impressions and make them more
pronounced I provide for oscillating the tool and its carrier plate.
For this purpose the carrier plate has a preferably V shaped groove in its top
and bottom edges and is movably fixed between two bars correspondingly shaped
to fit in the said grooves.
The carrier plate may, through the medium of a lever or levers or equivalent
mechanism be operated by a cam on a shaft having bearings in the frame and
driven by gearwheels or pulley and belt.
Dated this 26th day of October 1896.
BOULT & WADE,
Agents for the Applicant.
COMPLETE SPECIFICATION.
or
Improvements in or relating to Machines for Bunking and
Wheeling.
Stitch
I, WALTER JACKSON, 54, Burley's Lane, Leicester, 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 has reference to an improved construction of machine to be used

page_text: in either of the two operations of bunking or stitch wheeling the soles of boots and
shoes.
My invention comprises a machine which permits of either one or the other of
the two tools concerned in the operations named being readily removed from its
carrier and the other tool being substituted for it, when it is desired to change
from bunking to stitch wheeling or vice versa.
The said tool, as hereinafter appears, is also provided with a slight oscillatory
or reciprocatory motion which deepens or makes more pronounced the impressions
or indentations of the tool upon the boot sole as well as imparts a burnish or lustre
to the impressions themselves.
The said invention also includes other features, and will be fully understood
from the drawings forming part of this specification and from the following further
description.
Figure 1 is a side elevation and,
Figure 2 a front elevation of a machine constructed in accordance with this
invention.
A represents the stitch wheel tool, the shank A' of which is loosely inserted within
a tubular socket B so that it is free to revolve therein when in contact with a
boot sole.
The shank is prevented travelling longitudinally by collars A* A* screwed or
otherwise fixed thereon and the stitch wheel may be removed and a bunking tool
substituted for it when desired by releasing the screw A2 in the boss of the
tool.
The tubular socket is fixed by screws B¹ within a tubular carrier C the
angle of which may be varied by releasing the screw C' which connects it between
the two short upright arms D D¹.
These arms rise upwards from a horizontal dovetail slide E which has a
short oscillatory or reciprocatory movement in a guide way formed between
two correspondingly shaped guide blocks E E2 fixed to the bed plate by
bolts E 3.
The slide E has formed integrally with it a downwardly depending arm E 4,
shown in dotted line in Fig. 2, pivotted at F1 to one end of a horizontal arm F the
opposite end of which has bearing plates F2 F3 screwed together at F4 and
bored to pass over an eccentric portion G', Fig. 2, of the driving shaft G.
The driving shaft has bearings in two of the upper arms H' which support the
bed plate J and are located at the upper end of the usual pedestal or pillar H of
the machine.
The driving shaft is provided with the usual fast and loose pulleys G 2 G 3 and
it is obvious that the reciprocatory movement of the horizontal arm F furnished
through the medium of the eccentric G' will also be communicated to the arm E 4,
slide E, pillars D D¹, carrier C and tool A.
The sole of the boot or shoe to be operated upon is placed upon a revoluble
work support or disc K, and with its edge under the stitch wheel A in the manner
perfectly well understood.
The revoluble work support has a central opening to pass over the upper reduced end
of a vertical spindle L, which latter passes downwards through the bed plate J,
and through a spiral spring L' surrounding its lower portion, which is of reduced
thickness and attached to the upper end of a rod M which is connected to a foot
pedal in any of the well known ways.
The said spindle L also passes through a sleeve N furnished with flanges N' by
which it is bolted at N 2 to the bed plate J and the said sleeve also extends
downwards below the bed plate and forms a casing for the spring, being partly
broken away, as shown in Figure 1, to show the latter.
The bottom N 2 of the casing is screwed into the latter and forms a floor,
between which and the shoulder L2 formed by the increased diameter of the
spindle L, the spring L' is compressible.

page_text: The operation of the machine is as follows:-
The operator first places his foot upon and depresses the pedal so as to lower
the spindle L and work support K, the boot sole is then placed tread surface
downwards upon the latter and upon the operator removing his foot from the pedal
the spring L raises the support K which thereupon clamps the edge of the sole
between it and the tool A.
The operator then moves the sole along under the tool the latter at the same
time being revolved on its spindle by contact with the sole. The tool has also
reciprocatory motion imparted to it in consequence of its connection with the
slide E as hereinbefore referred to, and this oscillatory or reciprocatory motion of
the tool deepens the impressions made and also burnishes them and improves the
appearance thereof.
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 :-
1. In a stitch wheeling or bunking machine the combination with the rotary
tool of mechanism for oscillating or reciprocating it for the purpose specified.
2. In a stitch wheeling or bunking machine the combination with the tool of a
carrier C, a slide E and connections between the latter and the driving shaft for
the purpose described.
3. In a stitch wheeling or bunking machine the combination with the tool of a
work rest K, its supporting spindle and elastic connections between the latter and
a foot pedal for the purpose described.
4. The improved bunking or stitch wheeling machine consisting of the parts
constructed, arranged and operating substantially in the manner and for the purpose
described and illustrated in the accompanying drawings.
1 1005
Witness,―
E. N. LEWIS,
Berridge Street Chambers,
Leicester.
WALTER JACKSON.
{Boult & Wade,
Agents for the Applicant.