Improvements in and relating to the Punching of Eyelet Holes in Boots and Shoes.
Year: 1892

page_text: Date of Application, 18th Aug., 1892
Complete Specification Left, 7th Dec., 1892-Accepted, 7th Jan 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Punching of Eyelet Holes
in Boots and Shoes.
I, HARRY WRIGHT, of School Lane, Kettering, in the County of Northampton,
Boot Manufacturer, do hereby declare the nature of this invention to be as
follows:-
Hitherto the eyelet holes of boots and shoes have generally been punched
separately but in some cases each side of the upper has been punched separately
but always before the upper is closed. According to my invention I punch all the
eyelet holes at one operation and after the upper is complete, whereby I effect a
great economy of time and produce a better finished article.
In carrying out my invention I employ a die carrying a number of punches
corresponding with the number of eyelet holes to be punched. This die is adapted
to slide on a pin fixed in the head of a press, the lower end of such pin carrying
the under die. The upper or punch die is operated by a press lever.
To punch the eyelet holes in a finished upper by my machine, the upper is placed
or drawn over the under die (between it and the upper die) the pin passing through
the throat of the leg. The lever being now operated the punches are forced
through the leather and the upper die being released by the reverse motion of the
lever the punched upper is removed and another placed in position and so on.
In some cases instead of suspending the under die as above described, I employ
a horn shaped under die fixed to the bed of the press, in which arrangement the
upper or punch die is carried and operated in the ordinary manner.
Dated the 18th dex of August 1892.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to the Punching of Eyelet Holes
in Boots and Shoes.
I, HARRY WRIGHT, of School Lane, Kettering, in the County of Northampton,
Boot Manufacturer, do hereby declare the nature of this invention and in what
mauner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
My invention relates to the punching of eyelet holes in boots and shoes.
Hitherto the eyelet holes of boots and shoes have generally been punched
separately but in some cases each side of the upper has been punched separately
but always before the upper is closed. According to my invention I punch all the
eyelet holes at one operation and after the upper is complete, whereby 1 effect a
great economy of time and produce a better finished article.
In carrying out my invention I employ a punching head carrying a number of
punches corresponding with the number of eyelet holes to be punched. This
punching head is adapted to slide on a guide in the frame of a press, the lower end
of such guide carrying the under die. In connection with the under die is a gauge
adapted to fit the throat of the leg or upper to be perforated.
In some cases instead of suspending the under die as above described, I employ
a horn-shaped under die fixed to the bed of the press; in which arrangement the
punching head is carried and operated in the ordinary manner.

page_text: To enable my invention to be fully understood I will describe the same by
reference to the accompanying drawings, in which :-
Figure 1 is a side elevation of a hand power machine constructed according to
my invention; and,
Figure 2 is a plan of the same:
Figure 3 is a section on the line 3—3, Figure 2; and,
Figures 4, 5, 6 and 7 are sections- on the lines 4-4 5-5 6-6 and 7-7
respectively of Figure 3:
Figure 8 is a view similar to Figure 7 illustrating a slight modification of my
invention; and,
Figure 9 is a side view of the same:
Figures 10. and 11 are a sectional side elevation and a plan shewing the
arrangement of mechanism for driving my machine by steam or other power
through, the medium of a belt; and,
Figure 10 is a detail of the worm-wheel shewn in Figures 10 and 11:
Figures 12 and 13 are a side elevation and a sectional view illustrating the
arrangement wherein the under die is carried by the bed of the press.
Similar letters of reference indicate corresponding parts in all the figures.
a is the frame of the machine, and 6 is the punching head which slides upon the
guide c formed upon the frame a, being held in position thereon by means of the
strips d, d, Figures 1 and 5, and which carries at its lower end a removable plate e
to which the punches ff are secured.
g is the under die which has formed in it perforations h, h corresponding to the
punches, and which is firmly fixed to the underside of the guide c, as clearly
shewn in Figures 3 and 4.
is the gauge for the material to be perforated, and j is a plate perforated in a
similar manner to the under die h and adapted to steady the punches as they enter
the work placed upon the under die so that the said punches will correspond with
the holes, in the said under die. Additional guide-pins j³, j¹ are sometimes
employed to further steady the punches. This gauge i and plate j are arranged
between the 'under die and the guide c as clearly shewn.
In practice I find it advantageous to make the punches of slightly varying length,
as shewn in Figure 4, so that the power required to work the machine will be less
than if all the punches came down upon the material simultaneously.
In using my machine the upper to be perforated is introduced into the space
between the under die g and the plate j, the throat of the said upper being drawn
tightly around the gauge i, as clearly shewn in Figure 7, the punching head bis
then depressed so that the punches f,f perforate the upper.
In perforating what are known as Derby uppers, that is to say, uppers of the
kind in which the tongue forms a continuation of the vamp of the upper, it is
necessary to provide for adjusting the position of the upper relatively to the gauge i
as there is no point or V in the throat as in a Balmoral upper which can be pulled
against the gauge i. This I accomplish by extending the die-plate g, as shewn in
Figures 8 and 9, and mounting upon the extension a gauge k adapted to be adjusted
by a screw and against which the top of the upper is drawn, as shewn clearly in
Figure 8, where the dotted lines represent an upper of the kind referred to.
The up-and-down movement of the punching head may be effected by any
desirable means. As shewn in Figures 1, 2, 3 and 4 the said punching head is
represented as being operated by a hand-lever pivotted upon a pin and provided
at each side with an eccentric m, connected by a link n with the punching head b,
as shewn most clearly in Figures 3 and 4. It is obvious with this arrangement
that when the said lever is moved from the position shewn in full lines in Figure 1
to the position indicated by the dotted lines in the said figure, the punching head
will be depressed sufficiently to cause the punches to perforate the material upon
the under die.
When my machine is to be operated through the medium of a driving belt, I
advantageously provide the arrangement of mechanism shewn in Figures 10 and 11.

page_text: In this arrangement the punching head 6 is connected by links n, n with
eccentrics m, m upon a pin las in the arrangement last described: the said
eccentrics m, m in this case, however, are secured or formed integral with a worm-
wheel o as shewn in Figure 104, with which a worm p on one end of a shaft q
mounted in bearings upon the framing a engages: upon the other end of the shaft q
is loosely mounted a pulley having clutch-teeth & upon its boss with which the
teeth of a clutch-boxt (also mounted on the shaft 9 and sliding thereon) are adapted
to engage. This clutch-box t is operated to move it into engagement with the
clutch-teeths by means of a foot-lever or treadle connected by a rod u with a
lever we fixed to one end of a shaft w¹, a bifurcated lever being secured to the
other end of the said shaft to and with its arms embracing a sliding shaft r¹ and
bearing against a fork a³ attached to the said shaft x and engaging with a groove
in the clutch-box t.
With this arrangement it will be readily understood that when the foot-lever is
depressed so as to force the clutch-box t into engagement with the clutch-teeth s
the shaft q with its worm p will be rotated, whereby rotary motion will also be
imparted to the worm-wheel o and to the eccentrics m which in this case make
complete rotations instead of being oscillated as is the case in the arrangement
described with reference to Figures 1 to 9.
In order that after the foot-lever has been depressed to cause the engagement of
the clutch-box t with the clutch teeth as the said clutch-box shall remain in engage-
ment with the said teeth until the worm-wheel has made a complete revolution
without the necessity for the operator keeping his foot upon the treadle, I provide
on the shaft la cam which acts against one end of the rod a'. Normally the said
rod bears against the lowest part of the cam : as soon, however, as the
gear-wheel o commences to rotate the said cam also rotates and acts upon the rod .r¹
to push the fork to hold the clutch-box into engagement with the clutch-teeth s
until the cam has made a complete revolution when, under the action of a spring r³
upon the rod x', the said rod is moved back into the depression on the cam so as to
allow the clutch-box t to be moved out of engagement with the said clutch-teeth.
In Figures 12 and 13 which shew the arrangement wherein the under die g is
supported from beneath y indicates an arm upon which the said die is directly
carried, the said arm being secured to the frame a by means of bolts 2, .
Although in the foregoing description I have referred to the punches as being
arranged above the die-plate it is to be understood that this arrangement may be
reversed, that is to say, that the die-plate may be uppermost and the punching head
moved up to it from beneath.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. Punching all the eyelet holes in a complete upper at one operation by means
of a punching machine having a plate upon which the parts of the upper can be
supported (the said plate being provided with holes corresponding to those to be
punched in the upper) and a punching head carrying punches suitably arranged to
enter the said holes, substantially as, and for the purposes, described.
2. In a machine for punching all the eyelet holes in a complete upper at one
operation, the combination of a fixed perforated die, a movable die carrying
punches and gauge fixed to the perforated die and adapted to fit the throat of the
upper to be perforated or punched, substantially as described.
3. The improvements in machines for punching eyelet holes in boot and shoe
uppers hereinbefore described and illustrated in the accompanying drawings.
Dember 1909
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.