A MACHINE FOR PUNCHING OR DRIFTING THE EYES IN PICKS, MATTOCKS, AXES OR THE LIKE AND FOR PUNCHING THE COFERS OF, SPADES OR THE LIKE
Year: 1884

page_text: I JOSEPH BURDEKIN JACKSON of the firm of Spear and Jackson of Aetna Works
Sheffield in the County of York, Steel Tool Manufacturers do hereby declare the
nature of said invention for A MACHINE FOR PUNCHING OR DRIFTING THE EYES
IN PICKS, MATTOCKS, AXES OR THE LIKE AND FOR PUNCHING THE COFERS OF,
SPADES OR THE LIKE to be as follows:-
"
My Invention has for its object to provide a machine to supersede the ordinary
hand work hitherto necessary for punching or drifting the eyes in picks mattocks
axes or the like and for punching the "cofers" of spades or the like. According to
my Invention I provide a bed plato furnished with guides in which a support for
the tool head or article to be operated upon can be adjusted in position and in
which a drift or cutter holder can be reciprocated rapidly so as to cause the said
drift or cutter to quickly and efficiently drift or punch the requisite eye or "cofer"
in the tool head or article operated upon. The support for the said tool head or
article is preferably adjusted by means of a hand wheel fixed upon a screw which
runs in a nut at one end of the machine and is connected to the said support so as
to be capable of turning therein. The reciprocating motion of the drift or cutter
holder is preferably obtained by means of an eccentric or crank shaft connected by
a connecting rod or link with the said holder and provided with fly wheels and
pulleys by which the said shaft can be driven by power.
The tool head or other article being operated upon is moved forward gradually
against the quickly reciprocating drift or cutter until the requisite eye or cofer is
formed therein.

page_text: .
I, JOSEPH BURDEKIN JACKSON, of the firin of Spear and Jackson, of Etna Works,
Slieffield in the County of York Steel Tool Manufacturers do hereby declare the
nature of my invention for "A MACHINE FOR PUNCHING OR DRIFTING THE EYES
IN PICKS, MATTOCKS, AXES, OR THE LIKE, AND FOR PUNCHING THE COFERS OF
SPADES OR THE LIKE " and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
My Invention has for its object to provide a machine to supersede the ordinary
hand work hitherto necessary for punching or drifting the eyes in picks mattocks
nxes or the like and for punching the "cofers" of Spades or the like. According
to my Invention I provide a bed plate furnished with guides in which a support for
the tool head or other article to be operated upon can be adjusted and securely held
in position and in which a drift or cutter holder can be reciprocated rapidly so as
to cause a drift or cutter held in the said holder to quickly and efficiently drift or
punch the requisite eye or "cofer" in the tool head or other article operated upon.
The support for the said tool head or article is preferably adjusted and fed forward
by means of a hand wheel fixed upon a screw which-runs-in-a-nut-at-ono_end_of
the machine and is connected to the said support so as to be capable of turning
therein. The reciprocating notion of the drift or cutter holder is preferably
obtained by means of an eccentric or crank shaft connected by a connecting rod
or link with the said bolder and provided with fly wheels and pulleys by which
the said shaft.can be driven by power. On the tool head or other article operated
upon being moved forward gradually against the quickly reciprocating drift-or
cutter, the requisite eye recess or cofer is formed therein with rapidity and
uniformity.
And in order that the said-Invention-may-be-fully understood_1_shall_now
proceed more particularly to describe the same and for that purpose shall refer to
the several figures on the annexed sheet of drawings the same letters of reference
indicating corresponding parts in all the figures.
Figure 1 is a longitudinal section and Figure 2 is a plan of a machine constructed
according to my Invention Figure 3 is a transverse section taken along the line y.
figure 2. Upon the bed plato A are guides B in which the support C is capable of
longitudinal movement the said movement being imparted to it by means of a
screw running in the fixed screw nut E and provided at its outer end with a hand
wheel Ffixed thereto. The end of the screw D engagos in an under cut recess in
the support C which secures the said screw to the said support but allows of the
rotation of the said screw in the said recess. The said support has in it a recess c
for the reception of the tool head or article to be operated upon. G is a holder in
which is fixed a drift tool or cutter g which may be of the ordinary shape of drifts
tools or cutters hitherto used in performing the operation by hand labour. Tho
said holder is capable of longitudinal movement in the guides B the said movement
being imparted to it by means of a crank or eccentric on a shaft H revolving in
bearings fixed to extensions from the bed plate A the said crank or eccentric h
being connected to the holder G by means of a connecting rod I. The said shaft H
carries a fast pulley 3 and a loose pulley and is driven by any suitable motor.
It is also provided with fly wheels 5. The tool head or other article to be operated
upon is placed in the recess c in the support C in the proper position for being
operated upon by the drift tool or cutter g and the support is moved by the hand
wheel and screw D up to the point or end of the said drift tool or cutter g.
A rapid longitudinal reciprocating movement being given to the holder G by the

page_text: rotation of the shaft H through the crank or eccentric h and connecting rod I, and
the support being fed gradually forward towards the drift tool or cutter, the
requisite eye recess or cofer is formed in the tool head or other article placed in the
recess c. When this is completed the hand wheel F is rotated in the reverse
direction so that the screw D draws the support C back in the guides to beyond
the reach of the drift tool or cutter and then the tool head or other article can be
removed from the recess c and another tool head or other article be put in position
for being similarly operated upon by the drift tool or cutter.
I do not limit myself to the precise details illustrated in the drawings as it is
obvious that they may be varied without departing from the nature of my
Invention.
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 :-
•
First: A machine for punching forming or drifting the eyes in picks, mattocks,
axes or the like and for punching the recesses or cofers in spades or the like the
essential feature of the inachine being a drift tool or cutter provided with means
whereby a reciprocating motion can be imparted thereto and in combination with a
support for the article to be operated upon the said support and the said drift tool
or cutter being brought nearer together as the eye recess or cofer is being formed
in the said article substantially as herein before described.
Second-The machine for punching or drifting the eyes in picks, mattocks,
axes or the like and for punching the recesses or cofers in spades or the like
hereinbefore described and illustrated in the accompanying drawings.
Dated this 29th day of November 1884.