Improvements in or relating to Edge Setting Machines used in the Manufacture of Boots and Shoes.
Year: 1894

page_text: Date of Application, 15th Aug., 1894
Complete Specification Left, 15th May, 1895--Accepted, 15th June,
1895
PROVISIONAL SPECIFICATION.
Improvements in or relating to Edge Setting Machines used in the
Manufacture of Boots and Shoes.
We, ALFRED POCHIN, trading as The Standard Engineering Co. of
43 Welford Road, Leicester, Makers of Baot and Shoe Machinery, FRANK
HOWARD POCHIN, Draughtsman, and HENRY ADDISON, Manager, of the same
address, do hereby declare the nature of this invention to be as follows:-
:-
This invention has reference to edge setting machines used in the manufacture
of boots and shoes and embodies (1) improved means for retaining the edge setting
tools within their holders or sockets, and (2) means for minimizing the shock or
jar to the tool when in operation, thereby increasing the durability of same and of
the adjacent parts.
According to the first part of our invention the edge setting tools, (usually two
in number) which are carried in the usual radial sockets, are maintained within
such sockets by a spiral spring or equivalent means located between but preferably
in a horizontal opening or socket, communicating with the tool sockets and
pressing a bolt, stud, spindle or other suitable locking device against the spindie
of each of the edge setting tools, so as to fix them firmly in the holder.
According to the second part of our invention, we provide means for reducing
the shock or jar to the edge setting tools.
At present the spindle of the tool holder is received into a tube and encircled
by a spiral spring to intercept the jar and shock when the tool is in action, the
result is that as there is a deal of lateral pressure as well as vertical pressure on
the spindle of the tool holder, the said spring wears away the spindle and sides
of the before mentioned tube so that a renewal of such parts is frequently
necessary.
To minimize the shock we provide in addition to the spring referred to an
adjustably spring controlled spindle or equivalent located preferably in a convenient
position in the rocking arm and adapted to bear against the tool holder or the box
into which the latter fits in such a manner as to minimize the side play or shock
bereinbefore mentioned.
Dated this 15th day of August 1894.
W. P. THOMPSON & BOULT,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in or relating to Edge Setting Machines used in the
Manufacture of Boots and Shoes.
.
We, ALFRED POCHIN, trading as The Standard Engineering Co., of
43 Welford Road, Leicester, Makers of Boot and Shoe Machinery, FRANK
HOWARD POCHIN, Draughtsman, and HENRY ADDISON, Manager, of the same
address, 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 edge setting machines used in the manufacture of

page_text: boots and shoes and embodies (1) improved means for retaining the edge setting
tool or tools within its or their holder or holders and (2) means for minimizing or
reducing the shock or jar to the tool or tools when in operation.
According to the first part of our invention the edge setting tools (usually two
in number) are maintained within the usual radial sockets or holders by means of
a locking device located between but preferably in a passage in the said holder
the said passage communicating with the tool sockets and the said locking device
is kept in engagement with the said tools by a spiral spring or equivalent means.
The second part of the invention relates to means for minimizing the shock or
jar to the tools when in operation.
Heretofore the shank of the tool holder which is fixed in the centre of the latter
has been encircled by a spiral spring and located in a tubular socket in the usual
vibrating arm of the machine but as this arrangement is only capable of inter-
cepting the vertical pressure on the tool when in work, the lateral pressure
thereto causes the said spring to wear into the said shank and the sides of the said
tubular socket so that a renewal of such parts is frequently necessary.
According to this part of our invention we provide either in addition to or
independently of the spring encircled shank herein before mentioned a spring
controlled spindic or equivalent located in a socket or cavity in the vibrating
arm and adapted to hear against the end of the tool holder or the box in which
the latter fits, in such a manner as to minimize the side play or shock hereinbefore
mentioned.
The invention will be fully understood from the following further description in
reference to the accompanying drawings in which
Figure 1 is a section and Figure 2 an elevation of so much of the usual edge
setting machine with our invention applied thereto as is necessary to illustrate the
said invention.
Figure 3 illustrates two views of the tool locking device, drawn to an enlarged
scale.
A represents the usual vibrating arm of an edge setting machine and B B' the
usual edge setting tools which are shown as two in number. The shanks B² B³ of
the edge setting tools are received into passages or sockets in the radial holders C C¹
in the usual manner.
In order to maintain the said tools within the sockets in the holders C C¹ and
prevent them falling out accidentally or becoming displaced while the machine is
in operation, we provide improved means which according to our invention consists
of a passage D communicating with, or intersecting those within which the
shanks B2 B3 of the tools are usually located.
Within this passage are contained two preferably wedge ended pins E (one of
which is shown detached in Figure 3) or their equivalents hereinafter termed
locking devices which are pressed different directions and towards the tool sockets
by means of a spring F placed between them and whose ends are received into
recesses in the said locking devices as shown.
By means of this spring each of the locking devices is forced into a notch in the
shank of the tool thereby engaging the latter and preventing it accidentally dropping
out of its holder.
The operator can readily remove the tool by pulling it with a little force
away from the holder and can replace it by pushing the tool shank towards
the upper end of the socket, the locking device in each case yielding sufficiently to
enable these operations to take place.
In order to prevent the locking devices becoming deranged or forcibly ejected
from the passage D by the spring F when the tools are removed from the holder,
each of the said locking devices is provided with a flat surface E' against which
the end of a screw G passing through the holder is located.
Two shoulders E* E³ are formed on the locking device against which the ends of
the screws abut to limit the movement of the latter.
It is obvious that the said locking device may be employed when only one edge

page_text: setting tool is used on the machine and one end of the spring in such case would
bear against the end of the passage D.
The second part of the invention relates to means for reducing the shock or jar
of the edge setting tools when in operation as herein before referred to.
According to this part of our invention we form within the vibrating arm A a
cavity or socket H within which is placed a strong spiral spring exerting a
downward pressure upon a spindle J the lower end of which is in contact with the
end of the tool holder C and thereby intercepts any lateral pressure of or shock
received by, the tools B B' as well as tending to increase the steadiness in the
working of the latter.
To prevent the spindle J dropping out of place when the tool holder is removed,
the shoulder J of the said spindle J rests upon the usual box K under which the
tool holder C C¹ fits in the well known manner.
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. In an edge setting machiue the combination with the edge setting tool and its
holder of a passage in the latter a locking device in the said passage and means to
cause the said locking device to engage the shank of the edge setting tool for the
purpose described.
2. In an edge setting machine the combination with the edge setting tools and
their holder of locking devices and a spring or equivalent means interposed between
the said locking devices to maintain them in engagement with the edge setting tools
for the purpose described.
3. In an edge setting machine the combination with the edge setting tool and its
holder of a spring controlled locking device in the latter adapted to engage the said
tool, and means for preventing the derangement of the said locking device when the
tool is removed from its holder substantially as described.
4. In an edge setting machine the combination with the edge setting tool and
its holder of a spring controlled spindle or equivalent device located in the
vibrating arm and adapted to bear against one end of the tool holder for the
purpose described.
5. The improvements in edge setting machines consisting of the parts constructed,
arranged, and operating substantially in the manner and for the purpose described
and illustrated in the accompanying drawings.
Dated this Thirteenth day of Mar 1805
ALFRED POCHIN.
FRANK HOWARD POCHIN.
HENRY ADDISON.
ALFRED POCHIN.
FRANK HOWARD POCHIN.
HENRY ADDISON.
40 Witness:-
E. N. LEWIS,
Berridge Street Chambers, Leicester.
W. P. Thompson & Boult,
Agents for the Applicants.