Improvements in Picks.
Year: 1888

page_text: Date of Application, 17th Oct., 1888
Complete Specification Left, 17th July, 1889-Accepted, 24th Aug., 1889
PROVISIONAL SPECIFICATION.
Improvements in Picks.
We JOSEPH MITCHELL of Broadfield Park Works Heeley near Sheffield Engineer
and JOHN WILLIAM OGDEN of 33 Fir Street Walkley Sheffield in the County of York
Cashier, do hereby declare the nature of our said invention for "IMPROVEMENTS IN
PICKS to be as follows :-
This invention relates more particularly to improvements in miners picks and
consists of a cast or forged metal socket having at each end thereof and being solid
thereto a hollow longitudinal projection.
In carrying this invention into effect we take a socket cast with projections as
aforesaid which is entirely open at the top and hollow throughout, the said projections
also being hollow; and into each projection from the top of the socket we place a
point or spike which become flush with each end of the socket, the shaft is then placed
in the said socket and the intervening spaces between the said shaft and the spike
heads are filled in by means of wedges.
The said projections may be forged or cast hollow to any required section so as to
admit spikes of any section corresponding to that of the said projections.
Dusted this 10th love of Autobar 1888
GARLICK & MCGOWAN,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Picks.
We JOSEPH MITCHELL of Broadfield Park Works Heeley near Sheffield Engineer
and JOHN WILLIAM OGDEN of 38 Fir Street Walkley Sheffield in the County of
York Cashier, do hereby declare the nature of our said invention for "IMPROVEMENTS
IN PICKS" 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 picks and in a new and novel method of
securely fixing interchangeable points therein and thereto.
In the manufacture of our invention we make a pick head after the manner now in
force but with shorter and dummy end or ends. From the centre or shaft hole or
eye and running longitudinally and inside the said dummy end or ends we form a hole
or holes of required size or sizes capable of receiving pieces or points of steel which
are shaped after the manner of the point or points of a pick, and are held in position
by means of a suitable wedge or wedges of steel or other material being passed through
the said pick eye and dropped into the said longitudinal hole or holes and upon the
before named steel point or points, the whole in combination, are held together
securely by the wooden shaft passing through the eye of the pick and binding therein.
The pick shaft, which is preferably of wood, has a steel or iron strap or wedge which
is secured by suitable means to its forward end, and which is recessed therein for the
purpose of binding or forcing up into their positions the before named points and
wedges.
the
The said points may be put into the pick head from each end instead of through
eye
and held firmly in position by means of small wedges as shewn in Fig. 2.
The accompanying drawings illustrate our invention the same letters of reference
apply to the different views throughout the several views.
Fig. 1 is a section in elevation shewing the pick head A, points B, wedges C, also
shaft D and iron strap or wedge E.
Fig. 2 is a section shewing the points inserted from the end and secured by means
of a small wedge F.

page_text: Figs. 4 & 5 are shewing the points.
Figs. 6 & 7 are side elevations of the wedges C, as shewn in Fig. 1.
Fig. 8 is a front elevation shewing the shaft D and strap E.
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 :-
Firstly Every kind of pick, hammer and chisel pointed, or other. tool used for
the purpose of excavating and hacking pitching stones, or other similar work.
Secondly-In movable points either inserted through the eye or from each end,,
and secured by means of wedges as shewn in the accompanying drawings.
Thirdly In improvements in picks and in the method of attaching the points in
the pick head as hereinbefore specified, described and as illustrated by the accom-
panying drawings.
D
1
T. 1000
GARLICK & MCGOWAN,
Agents for the Applicants.