Improvements in Punching and Eyeletting Machines.
Year: 1895

page_text: Date of Application, 2nd July, 1895
Complete Specification Left, 17th Jan., 1896-Accepted, 22nd Feb., 1896
PROVISIONAL SPECIFICATION.
Improvements in Punching and Eyeletting Machines.
We, THOMAS CHARLES THOMPSON and SYDNEY THOMPSON both of the
Albion Mill, Trumpet Street, Gaythorn, Manchester, Printers' Engineers, do
hereby declare the nature of this invention to be as follows:-
This invention relates to a machine for punching and eyeletting paper, leather
and the like substances, and its object is to provide means for moving the die out
of the way, when the punch has made a perforation, so as to enable a plunger to
move upwards with an eyelet which is then secured in place.
In a machine constructed according to this invention the punch and the plunger
are constructed and operated in the usual manner.
The die is carried upon an arm or arms which are rotated with or upon a shaft
or the like mounted in the frame of the machine. Hinged or pivotted to the die
carrying arm or arms is the upper end of a jointed strut, the lower end of which is
pivoted upon the framework and carries a friction bowl to engage with a cam fixed
upon a shaft.
In its operative position the die is exactly under the punch and is supported by
the jointed strut which is preferably as nearly vertical as possible.
The operation of the machine is as follows:-The punch descends, makes a
perforation through the material to be treated and remains in its lowest position.
The cam controlling the strut now moves and the latter is moved backwards
around its shaft. The upper part of the strut acts as a connecting rod to draw
the die downwards and backwards free of the punch and a plunger arranged in
line with and below the punch. The plunger now rises carrying an eyelet from a
shoot of the usual construction and arrangement, up into the material around the
punch where it is clinched. The punch and plunger are then withdrawn and the
die returns to its position under the former.
Dated this 1st day of Jule A D 1805
W. E. HEYS & SON,
Agents for the Applicants.
Improvements in Punching and Eyeletting Machines.
We, THOMAS CHARLES THOMPSON and SYDNEY THOMPSON both of the
Albion Mill Trumpet Street Gaythorn Manchester, Printers' 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 a machine for both punching and eyeletting paper,
leather, textile materials and the like substances, and its object is to provide
means for moving the die out of the way when the punch has made a perforation,
so as to enable a plunger to move upwards with an eyelet which is then secured in
place.

page_text: In a machine constructed according to this invention the punch and the plunger
may be constructed and operated in the usual or in any suitable manner.
The die is carried upon an arm or arms which are rotatable with or upon a shaft
or the like mounted in the frame of the machine. Hinged or pivotted to the die-
carrying arm or arms is the upper end of a jointed strut the lower end of which is
pivoted upon the framework and carries a friction bowl to engage with a cam fixed
upon a shaft.
In its operative position the die is exactly under the punch and is supported by
the jointed strut which is preferably as nearly vertical as possible. In its
inoperative position it occupies a lower and more backward position and leaves a
clear passage for the vertical movement of the plunger by means of which an eyelet
is carried up into place and clinched.
The accompanying drawings illustrate in what manner this invention may be
carried into effect, similar letters of reference being used to indicate similar parts
where they occur in the different figures.
Figure 1 is a vertical section of the machine, all the cams, however, being shewn
for the sake of greater clearness.
Figure 2 illustrates the machine in front elevation with the table removed.
Figure 3 is a view of part of the machine shewing the die in position for
punching.
The machine is furnished with a punch A, which may be arranged and operated
in the manner usual in punching machines, and with a plunger B of the construction
usual in eyeletting machines. An eyelet box or hopper C from which the eyelets
are delivered one at a time through the shoot D is also provided.
The die E is carried by the cross bar F of the arms G, G' which are pivoted
at H H or which may be mounted upon a shaft extending across the frame.
Pivoted to each of the arms G G is the upper end of a jointed strut.
Each strut
consists of two parts JJ' hinged together at j, the lower parts J' being mounted
upon the frame of the machine at K and being joined together by a cross rod or
shaft L carrying a friction bowl L' which engages with a cam M mounted upon the
main shaft N of the machine.
As shewn by the drawings the die E may assume two extreme positions, the
inoperative one shewn in Figure 1, and the operative one illustrated by Figure 3.
In the former it occupies its lowest and most backward position, in the latter
it occupies its highest position and is held rigidly by the struts directly under
the punch which then descends and perforates the material placed between
them.
The die is moved by the cam M which in its rotation moves the lower part
of the struts J' through the medium of the bowl L' to the left of the position
occupied by them in Figure 1. This movement of the lower parts of the struts
imparts a similar and upward movement to the die E and its carrying arms G G¹
through the upper parts J which act as connecting rods. This movement is
continued until the two parts of each strut are in line and the die is rigidly
supported directly under the punch as shewn in Figure 3, by which time the
dwell upon the cam M has come into contact with the bowl L'. The continued
movement of the cam then allows the struts and the die to be withdrawn to their
former positions by the spring O, the ends of which are attached respectively
to one of the lower parts J and to the frame or a fixed part of the machine.
The cross rod L passes through arc slots formed in the sides of the frame.
The punch is operated from the cam P by means of the levers Pl Pl and the
connecting rod P 2. The plunger B by means of which the eyelets are carried up
to and clinched against the punch is provided with a spring controlled pin 6 and is
operated from the cam R through the lever R' which is pivoted at K. The eyelet
box and its attached shoot. D are mounted upon the two arms S¹ and are
operated from the cam S. These cams are mounted upon the main shaft and the
parts controlled by them are of the [construction usual in punching or eyeletting
machines.

page_text: The operation of the machine upon the rotation of the shaft is as follows:
taking the commencement of the cycle of movements when the die E is supported
directly under the punch as illustrated in Figure 3. The punch A descends,
perforates the material placed between the punch and the die, and remains in
its lowest position. The die is then withdrawn to the position illustrated in
Figure 1. The eyelet box and shoot move forward and the end of the latter
intercepts the path of the plunger B which now rises. The spring controlled
pin is inserted within an eyelet and the eyelet box and shoot is withdrawn.
The plunger B continues its upward movement carrying the eyelet, which is
inserted within the perforated material and surrounds the cylindrical perforating
part of the punch. As the punch and plunger meet, the pin b is pressed downward
and the eyelet is riveted in place between two suitably shaped shoulders 62
formed upon the punch and plunger respectively. The punch and plunger are
then withdrawn, the material is free to be fed forward, and the die returns
to its operative position under the former. A suitable easily removable feed
table T is arranged over the die and under the punch, and is furnished with a
guard flange T'.
It will of course be understood that multiple dies, punches and plungers may
be employed, so that any number of holes may be punched and eyeletted at one
stroke.
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 a combined punching and eyeletting machine, a die mounted on swing
arms and capable of assuming two extreme positions, one for punching and the
other to allow of eyeletting, constructed arranged and operated substantially as
and for the purpose bereinbefore described and as illustrated by the accompanying
drawings.
2. In a combined punching and eyeletting machine, a movable die arranged and
operated substantially as and for the purpose hereinbefore described and as
illustrated by the accompanying drawings.
3. In a combined punching and eyeletting machine, the combination of a die
mounted upon swing arms and a jointed strut or jointed struts, arranged and
operated substantially as and for the purpose herein before set forth and as
illustrated by the accompanying drawings.
Dated this 16th day of Tenue AD 1206