Improvements in Boot and Shoe Edge-setting Machines.
Year: 1896

page_text: Date of Application, 17th Apr., 1890
Complete Specification Left, 11th Feb., 1897-Accepted, 13th Mar., 1897
Date of Application,
Apr., 1890
Complete Specification Left, 11th Feb., 1897-Accepted, 13th Mar., 1897
PROVISIONAL SPECIFICATION.
Improvements in Boot and Shoe Edge-setting Machines.
We, MARK THOMAS DENNE, Engineer, and PAUL CAVE, of the Firm of
John Cave and Sons, Boot and Shoe Manufacturers, both of Rushden, in the
County of Northampton, do hereby declare the nature of this invention to be as
follows:-
Our invention relates to improvements in edge-setting machines whereby we
are enabled to construct a machine which is simpler and more efficient in working,
and which may more easily be adjusted to take up wear than is the case with
edge-setting machines of ordinary construction.
In carrying out our invention as applied to a double ended machine, we arrange
in bearings in a suitable frame a driving shaft having a crank or eccentric which
is employed to reciprocate a block or die between two adjustable faces attached
to a sliding shaft. This sliding shaft is horizontal, and at right angles to the
driving shaft and is provided at each end with a socket for the reception of the
An inner socket or plunger slides in the main or outer socket and is
pressed outwards by an adjustable spring, forming a cushion device.
The said inner socket is provided at one end with a cylindrical hole for the
reception of the iron and at the other with a similar hole in which is inserted
a locking rod. The hole for receiving the shank of the iron and the hole for
the locking rod are so arranged with relation to each other that when the iron
is inserted and the rod turned to the locking position, a head upon it engages
with a recess in the shank of the iron. The head upon the locking rod is cut
away in one part so that by rotating it slightly the shank of the iron may be
withdrawn.
The faces upon the sliding shaft are adjustable with relation to each other to
take up wear, and the dies or blocks upou the cranks or eccentric and the said
faces are contained in an oil box.
Dated this 11th day of April 1896.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
Improvements in Boot and Shoe Edge-setting Machines.
We, MARK THOMAS DENNE, Engineer, and PAUL CAVE, of the Firm of
John Cave and Sons, Boot and Shoe Manufacturers, both of Rushden, in the
County of Northampton, 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:-
Our invention relates to improvements in edge-setting machines whereby we are
enabled.to construct a machine which is simpler and more efficient in working, and

page_text: which may more easily be adjusted to take up wear. than is the case with edge-
setting machines of ordinary construction.
In carrying out our invention as applied to a double ended machine, we arrange
in bearings in a suitable frame a driving shaft having two cranks or eccentrics
each of which carries a block working between the faces of two pieces attached to.
sliding shaft and made adjustable relatively with one another in order to
compensate for wear. Each sliding shaft is horizontal and at right angles to the
driving shaft and is provided at each end with a socket for the reception of the
irons or tools, the said irons working in pairs.
To enable our invention to be fully understood we will describe the same by
reference to the accompanying drawings, in which :-
Figure 1 is a front elevation with certain parts removed of a machine constructed
according to our invention:
Figure 2 is an end view of the machine:
Figure 3 is a sectional view illustrating the construction of the part of the
mechanism broken away from the right hand side of Figure 2:
Figure 4 is a plan partly in section on the line 4-4 Figure 1:
Figure 5 is a sectional plan shewing the construction of the parts which are
broken away at A-A Figures 1 and 4.
a is the frame or bracket upon which our apparatus is mounted and b is a plate
having upon its rear face a boss c which extends through the said bracket and is
keyed or otherwise fixed therein so as to prevent the said plate from rotating
relatively with the bracket.
d is the driving shaft having formed upon it two eccentrics e, e the said shaft
having a bearing in a bushf which is fixed in the boss c of the plate b as shewn
clearly in Figure 3.
g, h are the two sliding shafts working in bearings formed in two frames i, i
bolted to the plate and jj are the adjustable pieces on each shaft the said
adjustable pieces being bored out to allow of the shaft being passed through them
and then slit as at k, k to permit of their being clamped by means of set screws 1, 1
upon the said shafts.
m, m are the blocks upon the eccentrics working between the faces of the
adjustable pieces j, j the said blocks being divided as clearly shewn in Figure 1 to
allow of placing them in position upon the eccentrics e, e¹.
With this arrangement of parts it will be understood that when rotary motion is
imparted to the shaft d reciprocating motion will be imparted to the shafts g, h
through the medium of the eccentrics e, e', the blocks m, m and the adjustable
pieces j, j.
n is a cover which is fixed over the frames i, i and preferably held by the
bolts o, o which also secure the frames i, i to the plate b. This cover serves with
the said frames i, i and with the plate 6 to constitute a box in which the blocks
work the said box being advantageously filled with oil so that it will form an oil
bath to retain the parts in a perfect state of lubrication. In order to prevent the
leakage of oil out of the said box through the bearings in which the said shafts
slide, glands, such as p, p Figures 4 and 5, are arranged in connection with the said
shafts.
9, 9 are openings formed in the cover n and in the back plate 6 for affording
access to the interior of the box for loosening and tightening the set screws 1,7
when adjusting the adjustable pieces j,j; normally these openings are closed by
small cover plates q', q'.
r, rare the arms on the ends of the shaft g, the said arms having tool holding
sockets s, s; and t, t' are similar arms on the ends of the shaft h.
u, u are supports against which the work is held whilst being operated upon
and v, v are burners for gas flames for keeping the tools s', s hot when in use.
w, w are bearing plates formed in one piece with the cover n and serving to
receive the pressure of the sockets s, s when the work is pushed against the tools.

page_text: Anti-friction balls x, x are preferably placed between the bearing plate wo and the
tops of the sockets in order to minimize friction.
It will be understood with the arrangement hereinbefore described that the tools
work in pairs, the tools of one pair moving towards each other whilst the tools of
the other pair are moving away from each other. The employment of a pair of
tools moving in this manner has the effect of preventing the vibration which is
imparted to the work when being acted upon by a single tool as the tendency of
one tool to push the work in one direction is counteracted by the tendency of the
other tool to push it in the reverse direction.
Instead of applying our invention to a double ended machine it will be obvious
that it may be applied to a single ended machine, that is to say, one pair of
adjacent ends of the shafts g and h and connections may be dispensed with.
Although we have described our inveution as applied to a machine where the
tools are arranged in pairs it is to be understood that our improvements are also
applicable where single tools only are used. In this case obviously one of the
sliding shafts g or h together with all the parts in connection therewith would be
dispensed with.
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 machine a sliding shaft carrying at its ends holders or
sockets for the tools the said shaft being adapted to be reciprocated by means
of an eccentric carrying a block sliding between two pieces adjustable on the
said sliding shaft, substantially as described.
2. In an edge-setting machine, the combination of two sliding shafts arranged
in the manner referred to in the preceding claiming clause the eccentrics for
operating the said shafts being so arranged that while the holders of one pair
are approaching each other the holders of the other pair are separating,
substantially as described, for the purpose specified.
3. The improved edge-setting machine consisting of the parts constructed and
combined, substantially in the manner herein before described and illustrated in the
accompanying drawings and operating as, and for the purposes, set forth.
Dated this 11th day of February 1897.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.