Improvements in and relating to the Sockets of Miners' Picks.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to the Sockets of Miners' Picks.
I, FREDERICK WILLOUGHBY of Tower Hill, Beighton in the County of York,
Engineer, do hereby declare the nature of my invention to be as follows:-
My invention relates to improvements in the sockets of miners picks, being
improvements upon those described in my prior Specification No. 6010 of 1891,
A socket to suit two kinds of blades.
My present improvement relates more particularly to the method of withdrawing
the wedge to permit the eyed blade to be readily passed over it and upon the
outside of the socket or head.
In the prior Patent the grooved wedge was arranged to be drawn out, and would
then lie close against the side of the socket but in practice this method is not
always satisfactory and I now propose to use a solid wedge with a crosspin projecting
on each side instead of a double groove, and in or upon each side of the interior of
the socket I construct a path for the projections to travel in, one part horizontal
and the other connected with it running upwards in an oblique direction towards
the centre of the opening in the top of the socket, so that when the wedge is drawn
back as far as it will go, the projections will enter the oblique path and the wedge
can then be pushed upwards until its head is partly within the socket, and its point
projects from the top of the socket.
The upper part of the socket is then left clear for the passage of the eye of the
blade over it.
The wedge can then be drawn down and passed into position under the blade.
The narrow sides of the top of socket are made to project or hang over to form
an abutment for eyed picks, and I may if desired make the sides also to project
slightly.
Deted the 26th day of January 1895
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.
Improvements in and relating to the Sockets of Miners' Picks.
I, FREDERICK WILLOUGHBY, of Tower Hill, Beighton in the County of York,
Engineer, do hereby declare the nature of this invention and in what manner the
same has to be performed, to be particularly described and ascertained in and by the
following statement :-
My invention relates to improvements in the sockets of miners picks, being
improvements upon the invention described in my prior Specification No. 6010
of 1891.
My present improvement relates more particularly to the method by which the
wedge can be withdrawn to a position which will permit the eyed blade to be
readily passed over it to its position upon the outside of the socket or head.

page_text: The invention is illustrated in the annexed sheets of drawings, like letters
referring to like parts in any of the figures.
Fig. 1, represents the socket with the blade in working position, and the wedge in
position to allow the blade to be either passed over it to position or to be withdrawn
therefrom.
Fig. 2, represents the socket with both the blade and wedge in working position.
Fig. 3, shows the top of the socket, and
Fig. 4, is a vertical section through the centre of the socket.
The object of the invention is to construct a socket that is well adapted for
holding various kinds of pick blades such as eyed blades, and also solid blades, and
in my prior Patent the grooved wedge was arranged to be drawn out to its full
extent and then turned down flat against the side of the socket, but in practice this
was not always satisfactory.
According to my present invention I use a solid wedge W, provided with a cross-
pin P, which projects from both sides of the wedge instead of a double groove, and
in. one but preferably in both sides of the interior of the socket S, I construct a
horizontal path or groove G', for the projecting ends of the pin P, to travel in,
when wedging and releasing.
In connection with the groove G¹, is another groove G2, running upwards in an
oblique direction towards the centre or thereabouts of the opening O², so that when
the wedge W, is drawn back and turned down as indicated in Fig. 4, the projecting
pins will enter the said oblique path or groove G³, and the wedge can then be
pushed upwards to the position shown in Fig. 1, until the stop piece W², is in contact
with the side of the socket.
In this position the eye of the blade B, can be readily passed over the shaft and
socket to its required position against the projections R also fitting upon the tapered
part of the socket head.
The wedge can then be drawn down the oblique path G2, and be driven in the
horizontal path G', to secure the blade in the usual manner as shown in Fig. 2.
Although have only shown the ends of the socket to project at R I may if
desirable make the sides R2 also to project slightly so as to form an abutment.
When a solid blade (that is one not having an eye) is used it is put through the
side openings O, and secured by the wedge in the usual manner.
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. In a pick head or socket, the arrangement of a combined horizontal and
oblique path or groove to receive and guide the retaining pin of the wedge for
the purpose herein before set forth and substantially as shown in the drawings.
2. A pick head or socket S, having its exterior constructed to receive and fit into
eye
of an eyed-blade B, and with side openings O, to receive a solid blade, and
provided with a wedge W, having a retaining cross pin P, which is arranged to
travel both in a horizontal groove G¹, and a connected oblique groove G³,
substantially as and for the purpose set forth.
the
Dated the 25th day of October 1895.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.