Improvements in the Preparation of Insoles for the Process of Lasting. by Machinery, and in Means or Apparatus therefor.
Year: 1892

page_text: Date of Application, 26th Mar., 1892
Complete Specification Left, 24th Dec., 1892-Accepted, 28th Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Preparation of Insoles for the Process of
Lasting. by Machinery, and in Means or Apparatus therefor.
We, WILLIAM ROBERT MUDD and ALFRED POCHIN, Boot and Shoe
Machinists, of Newarke Street, Leicester, do hereby declare the nature of this
invention to be as follows:-
This invention has reference to the preparation of insoles for the process of
lasting by machinery and to means or apparatus therefor.
In some kinds of boot and shoe lasting machines-the Rochester lasting
machine for instance--the insole is secured to the upper by means of cement or
other adhesive material, no tacks or rivets being employed.
The use of cement heretofore for the purpose named has been open to objection
for the following reason:
It is found that when the cement or adhesive material is applied to the smooth
surface of the insole, that the upper and insole after the lasting process have a
tendency to become partially separated.
This is accounted for partly by the fact that the leather from which the insole
is cut is subjected, as is usual in the manufacture of boots and shoes, to great
pressure between revolving rollers the effect of which is to consolidate and increase
its denseness.
This treatment incapacitates the leather from readily absorbing a portion of
the cement the result being an imperfect adhesion of the upper and insole as
hereinbefore mentioned.
Now the present invention is designed to remedy this objection and consists in
abrading or roughening the surface of the marginal edge of the insole where the
cement is applied and also in feathering or bevelling the edge of the insole. For
this purpose the insole is submitted to the action of a rapidly revolving tool or
tools carried on the end of a shaft or equivalent in the upper end of a column or
standard and operated preferably by a belt from a pulley on the driving shaft.
A suitable table is fixed under the revolving tool so that the leather being
operated upon may be laid or slid thereon to come into contact with the tool.
This table is provided with a suitable spring, to admit of varying thicknesses of
leather being abraded or bevelled and is further adjustable by means of a
convenient set screw or equivalent means.
A
1
Dated this 26th day of March 1892.
W. P. THOMPSON & BOULT,
Agents for the' Applicants.
COMPLETE SPECIFICATION.
Improvements in the Preparation of Insoles for the Process of
Lasting by Machinery, and in Means or Apparatus therefor.
We, WILLIAM ROBERT MUDD and ALFRED POCHIN of Newarke Street,
Leicester, Boot and Shoe Machinists, 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 the preparation of insoles for the process of
lasting by machinery and to means or apparatus therefor.
In some kinds of boot and shoe lasting machines-the Rochester lasting machine
for instance the insole is secured to the upper by means of cement or other
adhesive material, no tacks or rivets being employed.

page_text: 16
The use of cement heretofore for the purpose named has been open to objection
for the following reason:-
It is found that when the cement or adhesive material is applied to the smooth
surface of the insole, that the upper and insole after the lasting process, have a
tendency to become partially separated.
This is accounted for partly by the fact that the leather from which the insole is
cut, is subjected, as is usual in the manufacture of boots and shoes, to great
pressure between revolving rollers, the effect of which is to consolidate and increase
its denseness.
This treatment incapacitates the leather from readily absorbing a portion of the
cement, the result being an imperfect adhesion of the upper and insole as herein-
before mentioned.
Now the present invention is designed to remedy this objection and consists in
abrading or roughening the surface of the marginal edge of the insole where the
cement is applied and also in feathering or bevelling the edge of the insole.
For this purpose the insole is submitted to the action of a rapidly revolving tool
or tools, carried on the end of a shaft or equivalent in the upper end of a column
or standard and operated preferably by a belt from a pulley on the driving shaft.
A suitable table is fixed under the revolving tool so that the leather being operated
upon may be laid or slid thereon to coine into contact with the tool. This table is
provided with a suitable spring, to permit of varying thicknesses of leather being
abraded or bevelled and is further adjustable by means of a convenient set-screw or
equivalent means.
In order to more clearly illustrate the invention reference is made to the accom-
panying drawings, wherein,
Figure is an elevation of a machine constructed in accordance with this
invention.
Figure 2 is an end view, Figure 3 a section and Figure 4a plan of the adjustable
table and tools.
Figure 5 is a section on the line Z. Z. of Figure 2.
Figures 2. 3. 4 and 5 are drawn to a larger scale than Figure 1.
Like letters of reference indicate corresponding parts throughout the drawings,
A represents the column or standard provided at its upper end with bearings B,
carrying a horizontal shaft C hereinafter referred to as the tool shaft, and having
mounted on its end the tools D and D' fixed in position thereon by a washer and
screwed nut E.
The tool shaft is driven at a high speed and for this purpose has a small pulley F
fixed thereon driven by a belt G from a larger pulley H on the driving shaft J.
The driving shaft has bearings in the lower end of the column A and, is provided
with the usual fast and loose pulleys K. K. The tool for abrading or roughening
the marginal edges of the insole consists by preference of a ring D in whose
circumference are embedded a series of spikes or points D2 which engage the
leather on the flesh side and roughen or abrade it so as to render it capable of
absorbing a portion of the adhesive material, used in the process of lasting by.
machinery as herein before described.
While, however, a spike or point faced tool is used for roughening the leather,
it is obvious that various modifications of the same will readily suggest themselves
and we reserve to ourselves the right to use any kind of tool capable of roughening
the surface of the leather for the said purpose. The tool carrying shaft. C is also
provided with a bevelled edge tool D' for feathering the insoles and at the opposite
end an emery or scouring disc, but to these we make no special claim. The insoles
to be submitted to the action of the tool D are placed upon an adjustable table L
'thereunder.
The said table as indicated in Figure 3 consists of one side (horizontally disposed)
of an angular plate, the vertical portion L' of the latter being recessed or grooved
on its rear side so as to fit movably over the plate A' (Fig. 5) formed with or
connected to an extension A² of the column A as in Figures 1, 3 & 5.

page_text: In order to ensure the table L moving up and down on the plate A' the plate L'
has fixed thereto by screws M, Fig. 3. two metal strips M, Fig. 5. which overlap
the plate A' and thus connect the plates L' and A' together.
For fixing the table in position relatively to the tool D, the plate L' is provided
with a bifurcated internally screwed nut N engaging the upper end of a screwed
spindle and tightened thereon by the screw N and locked by the nut O¹.
The screwed spindle O passes through and has its head close against the
underside of the plate P fixed by a screw P¹, Fig. 3 to the extension A³ of the
column A.
In order to allow the table to give or depress when leather of slightly increased
substance is being submitted to the tool it has attached under its lower end by
screws L² a bow shaped spring Q, Figs. 2 and 3, centrally supported by a screw
bolt Q passing upwards through the plate A³ and locked securely in position by
the nut tightened against the underside of the said plate.
The extent to which the points D2 in the tool D enter the edges of the insole
being treated, is regulated mainly by the position of the table relatively to the
said tool, but as a supplementary means we provide on each side of the said tool
a roller R, Figs. 2 and 4, movably carried on a spindle S fixed by screws in a
slot T in the lower end of a horn or bracket T secured to the upper end of the
column as shown most clearly in Figure 4.
The insole in being operated upon is gripped in position and moves forward
between the table L and the rollers R and in guiding the insole under the tool D
the operator keeps the edge thereof close against a curved guide plate U laid on
the table and secured in position by screws U¹.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The preparation of insoles for lasting by machinery as described and
consisting of abrading or roughening the marginal edge thereof substantially in
the manner and for the purpose described and illustrated in the accompanying
drawings.
2. In a machine for preparing insoles for lasting by machinery as described
the use of a tool such as D or equivalent for abrading or roughening the marginal
edge of the said insoles substantially in the manner and as and for the purpose
described and illustrated in the accompanying drawings.
3. In a machine for preparing insoles for lasting by machinery as described the
combination with the tool for abrading or roughening the marginal edge of the
said insoles of an adjustable spring controlled table such as L L substantially as
described and illustrated in the accompanying drawings.
4. In a machine for preparing insoles for lasting by machinery as described the
combination with the tool for abrading or roughening the marginal edge of
the said insoles of an adjustable spring controlled table such as LL' of rollers
such as R substantially as described and illustrated in the accompanying drawings.
5. The combination and arrangement of parts constituting the complete machine,
constructed and operating substantially in the manner and as and for the purpose
described and illustrated in the accompanying drawings.
Dated this 23rd day of December 1892.
WILLIAM ROBERT MUDD.
ALFRED POCHIN.
W. P. Thompson & Boult,
Agents for the Applicants.