Improved Means applicable for Use in Punching Eyelet-holes in Boot or Shoe Uppers.
Year: 1895

page_text: Date of Application, 23rd Dec., 1895
Complete Specification Left, 23rd Sept., 1896-Accepted, 14th Nov., 1896
PROVISIONAL SPECIFICATION.
Improved Means applicable for Use in Punching Eyelet-holes
in Boot or Shoe Uppers.
We, WALTER ELIJAH DOWNS, of 141, Rockingham Road, and HENRY JOHN
SCOTT, of The Glendon Engine Works, both in Kettering, in the County of
Northampton, Engineers, do hereby declare the nature of this invention to be as
follows:-
This invention relates to an improved method of and apparatus for punching holes
(to be subsequently eyeleted) in "uppers "for boots and shoes, the process being
applicable after the said uppers have been closed.
In carrying out our invention, we employ a standard or bracket formed or
furnished with bearings in which a vertical shaft, capable of a to-and-fro longitudinal
movement, is mounted. Convenient means for imparting such movement may
consist of a crank pin, eccentric or cam, carried at the extremity of a horizontal
shaft and working in a chase, or otherwise engaging with the vertical shaft or with a
body mounted thereon; the outer extremity of the horizontal_shaft being furnished
with a lever whereby a rocking motion may be imparted.
From the face of the
standard projects a plate on which two sets of dies are mounted; each set being
designed to punch a series of holes along one edge of an "upper," and the two
sets being disposed one precisely above the other. Each set of dies consists of a
plate carrying the punches, a guide-plate through which the punches pass, and a die-
plate which they enter and which is common to both sets of punches. One set
of punches enters the die-plate from above and the other set enters from below.
Upon the vertical shaft is mounted a body formed with two projecting arms or
plates which project one above the upper stud-plate and the other below the lower
stud-plate.
In applying the apparatus for the purpose referred to, the two edges of the
68 upper are inserted, the one above and the other below the faces of the die-plate.
Upon downward motion being imparted to the vertical shaft, the upper series of
punches perforate the leather and enter the die-plate from above. Upon the reverse
operation taking place-that is to say, the vertical shaft being moved upwards-the
lower series of punches perforate the material and enter the die-plate from below,
the upper series of punches being at the same time withdrawn and the cuttings
discharged from the holes in the die-plate.
It will be obvious that a similar result could be brought about by causing the die-
plate to move to-and-fro between two stationary stud-plates, the "upper
"under
treatment, as also the guide-plates (where used) moving in unison with the die-plate.
The means for imparting motion to the vertical shaft may moreover be modified to
meet the conditions pertaining to driving by power, or may be otherwise varied
without departing from the principle of our invention.
Dated this 23rd day of December 1895.

page_text: Improved Means applicable for Use in Punching Eyelet-holes
in Boot or Shoe Uppers.
We, WALTER ELIJAH DOWNS, of 141, Rockingham Road, and HENRY JOHN SCOTT,
of The Glendon Engine Works, both in Kettering, in the County of Northampton,
Engineers, 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 relates to an improved method of and apparatus for punching holes
(to be subsequently eyeletted) in " uppers "for boots and shoes, the process being
applicable after the said uppers have been closed.
Apparatus adapted for carrying our invention into effect is represented in the
accompanying drawings, whereof Fig. 1 is a side elevation, Fig. a front view and
Fig. 3 a plan. Fig. 4 is a longitudinal section and Fig. 5 a transverse section on the
line in Fig. 1. Fig. 6 is a face view and Fig. 7 a plan of the punches and die-
plate drawn to a larger scale.
In carrying out our invention, we employ a standard or bracket a formed or
furnished with bearings b in which a vertical shaft c, capable of a to-and-fro
longitudinal movement, is mounted. Convenient means for imparting such movement
may consist of a crank pin d, or an eccentric or cam, carried at the extremity of a
horizontal shaft e and working in a chase for otherwise engaging with the vertical
shaft c or with a body ex mounted thereon. The outer extremity of the horizontal
shaft e may be furnished with a lever whereby a rocking motion may be imparted.
In the example illustrated, the shaft e carries a disc g and fly-wheel or pulley h; the
latter when the disc is thrown out of gear therewith revolving freely on the said
shaft e. From the face of the standard a projects a plate a' on which the die-plate i,
and guide-plates are mounted. The body ex is provided with two projecting
arms c³ ³ for operating two sets of punches k¹³ designed to punch a series of holes
along one edge of an upper," and the two sets being disposed one precisely above
the other. Each set of punches and dies consists of a plate k carrying the
punches kor k³, a guide-plate i¹ or through which the respective punches pass,
and a die-plate i which they enter and which is common to both sets of punches.
One set of punches k¹ passes through the guide-plate and enters the die-plate i from
above, and the other set passes through the guide-plate and enters the die-plate
from below. The projecting arms or plates c¹ c² project one above the upper stud-
plate and the other below the lower stud-plate; each plate k k with its respective set
of punches or being operated alternately by the projecting arm c¹ or c³
pertaining to the upper or the lower set. are rods for maintaining the relative
position of the punches and for guiding the same in their ascent and descent.
61
Upon
In applying the apparatus for the purpose referred to, the two edges of the "upper"
are inserted, the one above and the other below the faces of the die-plate i.
downward motion being imparted to the vertical shaft c, the upper set of punches k¹
*descend, perforate the leather and enter the die-plate i from above. Upon the
reverse operation taking place that is to say, the vertical shaft c being moved
upwards-the lower set of punches ascend, perforate the material and enter the
die-plate from below, the upper set of punches being at the same time withdrawn
and the cuttings made by that set discharged from the holes in the die-plate.
It will be obvious that a similar result could be brought about by causing the
die-plate to move to-and-fro between two stationary stud-plates, the "upper" under
treatment, as also the guide-plates (where used) moving in unison with the
die-plate.
It will also be apparent that the means for imparting motion to the vertical shaft

page_text: may be modified to meet the conditions pertaining to driving by power, or may be
otherwise varied without departing from the principle of our invention.
Referring to Fig. 4, the disc g is keyed to the shaft e and revolves therewith.
The pulley is furnished with projections ¹¹ which engage with a dog or
catch g' carried by the disc g; a spring 9 tending to maintain the dog in engagement
with the one or the other of the projections h¹. On the withdrawal of the bolt m
from engagement with the dog g' by means of a foot-lever (not shown) attached
to the connecting chain 1, the pulley h and with it the shaft e carrying the
pin d may be rotated; a reciprocating motion being imparted to the shaft c and
punches k¹k. The punches having made one up-stroke and one down-stroke, and
the attendant, at the commencement of the revolution of the disc g, having released
the foot-lever, the bolt m rises and engages with the slot g³ in the disc g and with-
draws the dog or catch g¹ from engagement with one of the projections h¹. The
catch then assumes the position shown in Fig. 1. A spring m¹ may be employed
to expedite the shooting out of the bolt m.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we claim
--
1. The improved method of punching holes in the uppers of boots or shoes,
consisting in arranging the two edges of the upper on the opposite sides of the
same die-plate, punching one row of holes at one stroke and the other row at the
return stroke, substantially as herein described.
2. In apparatus for punching holes in the uppers of boots or shoes, the combi-
nation with a die-plate i of two sets of punches, such as k¹k, arranged to enter
the opposite sides thereof by successive movements, substantially as and for the
purpose set forth.
3. In apparatus for punching holes in the uppers of boots or shoes, the combi-
nation with a die-plate i of a reciprocating shaft c furnished with two arms
projecting on opposite sides of the die-plate and respectively provided with
punches and suitable means, such as a crank pin d, for reciprocating the said
shaft, and operating the two sets of punches successively, substantially as set forth.
Dated this 23rd day of September 1896.