Improvements in Channelling Machines for Boots and Shoes.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Channelling Machines for Boots and Shoes.
I, WILLIAM HENRY DORMAN, of the Green Hall, Stafford, Engineer, do hereby
declare the nature of this invention to be as follows;-
The object of this invention is so to improve the construction of channelling
machines as to enable them to form the inside and outside channels, simul-
taneously, on boot soles having very pointed toes.
For this purpose the knife which cuts the inside channel is so arranged that it
can be withdrawn from its work when desired, as at the toe point, and re-inserted
after the toe has been turned. It can also be set to cut any desired depth of
channel, at any desired distance in from the edge, and at any desired angle to the
surface of the sole.
This inside channel knife is clamped by a hook or slotted bolt, to a slide block
which is mounted in a carriage, clamped (in such a manner that it can be set at
any desired angle) to a vertical slide which can be set up or down in the machine
head by a thumb screw or the like.
The slide block is linked, or otherwise connected, to a bell-crank, or the like,
pivoted on the head of the machine and connected to a treadle, so that foot pressure
may be used to withdraw the block, and so raise the knife from its work. A spring
returns the knife when the treadle is released.
The work is supported and fed forward on a usual revolving wheel or table,
and the feed wheel, outside channelling knife, and other parts, may be such as
heretofore used in the class of machines to which this invention is applicable.
Dated this 14th day of December 1897.
CUALI LEIE SIMUITICATION,
Improvements in Channelling Machines for Boots and Shoes!
I, WILLIAM HENRY DORMAN, of the Green Hall, Stafford, Engineer, "do hereby
declare the nature of this invention, and in what manner the same is to be "per-
formed, to be particularly described and ascertained in and by the following
statement:-
1
זיו,
The object of this invention is so to improve the construction of channelling
machines as to enable them to form the inside and outside channels, simul-
taneously, on boot soles having very pointed toes:
For this purpose the knife which cuts the inside channel is so arranged that it
can be withdrawn from its work when desired, as at the toe' point, and re-inserted
[Price 8d.]
"

page_text: after the toe has been turned. It can also be set to cut any desired depth of
channel, at any desired distance in from the edge, and at any desired angle to the
surface of the sole.
"
This inside channel knife is clamped; by a hook or slotted bolt, to a slide block
which is mounted in a carriage, clamped (in such a manner that it can be set at
any desired angle) to a vertical slide which can be set up or down in the machine
head by a thumb screw or the like.
The slide block is linked or otherwise connected to a bell-crank or the like
pivoted on the head of the machine and connected to a treadle, so that foot pressure
may be used to withdraw the block, and so raise the knife from its work. A
spring returns the knife when the treadle is released.
The work is supported and fed forward on a usual revolving wheel or table,
and the feed wheel, outside channelling knife, and other parts, may be such as
heretofore used in the class of machines to which this invention is applicable.
My invention is illustrated by the accompanying drawings in which:-
Fig. 1 is a side view;
Fig. 2 is a plan and
Figs. 3 and 4 are details of portions of a channelling machine shewing my
invention.
The knife a which cuts the inside channel 6 is clamped by the bolt c and nut d
to a slide block e which is connected by a link f to a bell-crank mounted on
a pivot h in the frame i and operated through the rod. by a treadle, not shewn.
Depressing the treadle draws down the rod j and withdraws the knife a from the
channel so enabling the toe of the sole to be turned and when the treadle is
released the spring returns the knife a to its work.
The slide block e may be set at an angle to suit the angle desired to be given
to the knife a and channel b by adjusting the carriage in which the block e
slides by means of the screws mn and slots op, the curves of which latter are
preferably struck from the point q of the knife a.
The screws mn clamp the carriage to the slider which is fitted to slide
vertically in the machine frames and can be set up and down by the milled
head t and the screw u for the purpose of raising and lowering the knife a. It
is clamped by a set screw v.
The angle of the knife a relatively to the block e can be altered by slackening
the nut and turning the bolt c while at the same time its distance horizontally
from the feed wheel w may be adjusted.
The outside channel knife is clamped by a bolt y to the vertical slide which
can be set up and down by the milled head a¹ and screw b¹. It is clamped by the
screw c¹. By means of the screw d¹ both of the knives a and a may be raised
and lowered together.
The work is supported in the usual manner upon the revolving table e¹.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
In a machine for simultaneously cutting the inside and outside channels in
a boot sole.
1. The arrangement and construction of parts as herein described for raising
the inside channel knife for the purpose of enabling the toe of a boot sole to be
turned and returning the knife to its work.
2. Carrying the channel knife in a sliding block which can be moved by the
operator so as to withdraw the knife from the channel for the purpose of enabling
the toe of the boot sole to be turned, substantially as described...
3. Carrying the channel knife in a sliding block supported in a carriage which
latter can be set in different positions for the purpose of enabling an operator
to cut channels in boot soles at various desired angles, substantially, as described.
4. Carrying the channel knife in a sliding block and carriage, capable of being

page_text: set at various desired angles by means of an adjustable slide, for the purpose of
enabling an operator to raise and lower the knife so as to cut channels of varying
depths, substantially as described.
5. The combination with a revolving table, feed wheel and outside channelling
knife of an inside channelling knife which can be withdrawn from its work by
the operator for the purpose of enabling the toe of the boot sole to be turned, and
afterwards returned to its work, as herein described and illustrated.
Dated this 14th day of September 1898