Improvements in Machines or Mechanism for Burnishing and otherwise Finishing the Soles of Boots and Shoes.
Year: 1891

page_text: Date of Application, 28th Nov., 1891-Accepted, 30th Jan., 1892
COMPLETE SPECIFICATION.
Improvements in Machines or Mechanism for Burnishing and
otherwise Finishing the Soles of Boots and Shoes.
We, EDWARD DEVINE, and PHILIP DEVINE, both of 194 Rutherglen Road,
Glasgow, Lanarkshire, Boot and Shoe Manufacturers, do hereby declare the
nature of our invention, and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement in writing,
that is to say :-
รร
Our invention has reference to and comprises certain improvements in machines
or arrangement and combination of the parts of mechanism and in special
mechanical movements for the giving of the vibratory motion to the levers and
tools for burnishing the edges, and waists or shanks" under the instep, of
the soles of boots, shoes, and slippers, and for the rubbing-off, polishing, and
finishing of same, and which improvements will be more simple in construction
and efficient in action than the mechanism heretofore used for the said purposes.
And in order that our said invention, and the manner of performing or carrying
the same into effect or practice may be properly understood we have hereunto
appended an explanatory sheet of drawings in which the same reference letters are
used to indicate corresponding parts in all the figures where shown.
Figures 1 and 2 show a front and end elevation, the latter partly in section, of
one general construction of burnishing and polishing machine in accordance with
our improvements.
Figure 3 shows a front elevation and edge view respectively of the vibratory
tool lever F, F; and Figure 4 shows an edge view of the new mechanical disc
action or mover E, E', for actuating said lever F, F, all to an enlarged scale and
as detached from the general views Figures 1 and 2.
Figures 5 and 6 show side and edge views GG, G1 G³, respectively of two
different forms of burnishing tools suitable for burnishing the lower surface of the
"waists
65
or shanks," of the soles of boots shoes, and slippers.
"
Figure 7 shows an edge and side view of the stitch roller or wheel
tool G, G, G, for finishing the upper edges of the soles round the outside of the
"uppers," for being actuated by the same machine and mechanism as the burnishing
tools. While
Figures 8 to 12 show various modifications in the construction of the new disc
reciprocatory mechanical motion and tool lever E E, F F', from that shown in
Figures 1 to 4 of the drawings.
Referring to Figures 1 to 4 of these drawings the machine consists of a hollow
square or round column framing A, supporting the whole machine in a self con-
tained or portable manner, but bolted down to any suitable foundation by a basement
flange and four corner or side bolts at A'; lightened by recesses on the four sides
at A", A. Within the lower part of two of these recesses A², bush bearings A³
are mounted to carry the journals of a first motion shaft B, of the machine. The
column frame A, is formed with a square top flange A', on which is bolted by a
corresponding flange C the hollow headstock frame C of the machine, formed of
a U or forked shape, having bush bearings C", mounted in the upper end of each
fork, to carry the working journals of the working shaft D of the machine, so
mounted in its bearings that it cannot shift endways, and which is rotated at a high
speed by the small pulley C, on its one end, actuated by the belt C from the large
pulley B of the first motion shaft B, which is actuated through the small fast and
loose increasing speed pulleys B₁, by a belt B2 from any adjacent moving shaft of
the works.

page_text: ---
An important improvement of this machine consists in mounting and securing on
the working shaft D of the machine, preferably between its journal bush
bearings C, C, a new or improved angled acting disc E, shown to a large scale
in Figure 4. This disc E is turned as a true disc on the axial centre dotted
line e, e, but has its boss or eye E', bored out to suit the shaft D, on the
axial line dd of this shaft at such an angle to the line ee as to give
the disc E, at its outer periphery E", E", the desired throw to one side or
the other of the centre line d
of the disc E at right angles to the
line dd. This disc E, may either be secured to the shaft D, through its
bored eye E', by a conical concentric spring wedge bush e, as shown in Figures
and 2, or by a spring wedge bush e as shown in Figure 2 A, which might be
made eccentric and conical to give the angle to the disc E when desired, and in
either case secure the disc E to the shaft D, by being driven in from the wide end
of the eye E; or otherwise when bored with an angled eye it might be secured by
a key and keyseat or by a pinching screw e², as shown in Figure 4. The angled
rotating disc E. at each revolution gives a to and fro oscillatory motion to the
upper forked arm F of the burnishing tool lever F, F', this lever being mounted by
its central eye F³, on a fixed angled screw stud F, one lever on opposite sides of
the disc E, for a double machine, as seen particularly in Figure 2 and indicated by
the double headed arrow in Figure 3 cachi stud F" being secured in malleable iron
or steel angled cross plates F³, bolted at C to angled flanges on opposite sides of
the forked headstock C C. The forked ends F, F, of the lever F, F, are mounted
to embrace the disc E on opposite sides, preferably by the point ends of lignum
vitæ or other equivalent hardwood screw pins f, screwed into the upper forked
arms F as they wear by the revolving action of the disc E, and secured or prevented
from turning by the gripping metallic screw pins f. Thus it will be seen that each
revolution of the disc E gives a to and fro motion to the opposite ends of the
lever F, F. The lower arm F1 of this lever is made with a square socket at "
for receiving the square stem G¹ of the burnishing tools G, G, shown to an enlarged
scale in Figure 3, which burnish the outer edges of the soles, the projection
part G, entering the seam part between the sole and the uppers of the boot or
shoe, as indicated in dotted lines in Figure 2. The burnishing tools are heated
by a small gas jet from a burner at g projecting from a double branch gas pipe g
seen particularly in Figures 1 and 2, and this flame jet strikes the back of the
burnisher G, or the lower end ", of the lever F, and is regulated by taps g", to
maintain the desired heat. A strong loop wire spring g is bolted to the back of
each plate F³ and projects down below the burnishing tool Cr, so that the person
holding the sole of the boot or shoe up to the burnisher can grip this, and so press
the boot against the burnisher G, while it is vibrating and burnishing the edge of
the sole. Figure 5 shows another form of burnisher G2, with vertical stem G' for
inserting into the socket fl of the burnishing lever F1 and Figure 6 shows a
lateral projecting form of burnisher G³, with either round or convex burnishing
-sides with the square stem G₁ for passing into a lateral square hole at in the
lever F, but it might be formed with a vertical stem G, as shown dotted in similar
to that shown in Figure 5, and both for burnishing the lower waistpart of the soles
of boots and shoes close up to the heel; all these burnishers G, to G³, being secured
in their sockets in the lever F', by screw pin f. Figure 7 shows a stem
block G, G³, with the rolling fluted wheel G, for inserting into the socket fl of
the lever F, for finishing the upper edge of the sole over the stitching or to
- imitate same, the sole being made to rest and reciprocate on an angled roller
indicated at G in Figure 7, which would revolve on a stud projecting from a spring
lever mounted at the lower part of the frame C under the arm F of the lever
instead of using the hand spring 9², shown in Figure 2, for keeping the work up to
the reciprocating tool.
Referring to Figures 8 and 9 which are a front and end section of a modified
construction of the improved rotating angled disc E, E', and tool lever F, F,

page_text: reciprocated by it from those shown and described in reference to Figures 1 to 4.
In this arrangement two angled discs E, E, are formed and fitted on one boss E',
with a groove Es, between them so as to give two inner working surfaces instead of
outer surfaces as in the former arrangement, and having one bosshead, in the
upper arm F, of the reciprocating lever F, F. In this arrangement the lignum
vitæ or other pins fare fitted in the one bosshead for extreme end of the lever F
having a tapered lateral screw pin f' fitted in the bosshead between the pins f, f
to expand and secure them in their working positions between the inner working
surfaces of the discs E, E; otherwise however this arrangement of discs and lever
act substantially as described in reference to the former figures. Figure 10 is a
sectional end view corresponding to Figure 9, but with a wedge screw cotter drawn
up in a slot in the centre of the bosshead of the lever F, between the inner ends of
the pins ff, to retain and hold them up to their working surfaces on the angled
discs E, E, instead of the conical screw pin f, shown in Figures 8 and 9.
Figures 11 and 12 show a front elevation and plan view of this angled double dise
arrangement E, E², and lever F, F1, in which two antifriction rollers are used as
an equivalent for the pins in the former figures, rolling on each other and on the
inner surfaces of the angled discs E, E, in the space 13, and they are set at such
an angle that the setting of the stud F, of the lever a little more vertical towards
the centre of the discs E, E, tends to tighten up the rollers and make up for wear
on the working surfaces. Or instead of thus shifting the carrying stud of the
lever F, F, the outer end only of the lever arm F, having the rollers mounted
in it, might be so jointed to the arm F on a centre shown dotted in at F* in
Figure 11, as to be oscillated and tightened up by a screw to make up for the wear
in these rollers ff. Instead of using two antifriction rollers ff only in the head of
the lever F, F, as shown in Figures 11 and 12, three rollers ff, and f', may
be used, as shown in Figure 11, and only require the one roller, to be
moved and tightened up in its bearings to make up for the wear of the working
surfaces. In some cases, instead of these arrangements of screws for tightening
up the pins between the inner working surfaces of the discs E, E, or moving
the equivalent rollers as described, one of the discs E, might be mounted
separately on its boss E', and be tightened up at convenient intervals by screws e³
and loose thin rings e', as indicated in section on the one side of Figure 8.
וי
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we have to state that
we make no claim to the burnishing and finishing tools G, to Go, specially described
with reference to Figures to 7, and that other shapes of such tools may be
employed, and other forms and constructions of framing A. and headstock C for
carrying the working spindle D may be adopted, for actuating the new or
improved construction and arrangement of angled disc, and reciprocating lever
for holding said tools; but what we consider to be novel and original and therefore
claim is :-
First. The construction or arrangement and combination of the parts and
mechanical motions of a machine or mechanism for burnishing and polishing or
finishing the soles of boots, shoes, and slippers, having single or double angled
rotating discs fitted on the headstock spindle for working either one or two
oscillating tool levers, substantially as and for the purposes hercin described in
reference to and shown in the accompanying drawings.
Second. In a machine for burnishing and polishing or finishing the soles of boots,
shoes, and slippers, the construction and use of a mechanical motion consisting of
single or double angled rotating discs for oscillating one or two tool carrying levers,
substantially as and for the purposes herein described, in reference to and by way
of application shown in the accompanying drawings.
Third. In a machine for burnishing and polishing or finishing the soles of boots,
shoes, and slippers, the construction and use of an oscillating tool lever fitted with
adjustable lignum vitæ or other pins or autifriction rollere for making up the wear

page_text: on their actuating rotating surfaces, substantially as herein described in reference to
and by way of application shown in the accompanying drawings.
Dated the 27th November 1891.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.