IMPROVE- MENTS IN SECURING THE HEADS OF PICKS
Year: 1887

page_text: We, JOHN GEORGE HAWKSLEY BEDFORD, of Mowbray Street, Manufacturer, and
SAMUEL WILLINGTON of 9 Clyde Road, Heeley, Engineers tool maker, both of Sheffield
in the County of York do hereby declare the nature of our said invention for "IMPROVE-
MENTS IN SECURING THE HEADS OF PICKS," 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 improvements in the method of attaching the heads of picks
to shafts and consists of a hollow wrought, cast, or malleable iron socket the bottom
part of which is left open for the head to slot into, having a hole at each side and one
in the end or face thereof.
The head is wrought or cast with gates at or about the centre, two in the front part
and one at the back thereof, the projection in the front fitting into the hole in the end
or face of the socket bringing the head flush with the end or face of the said socket,
the gate at the back part of the said head is so placed as to be directly opposite the
holes in the sides of the said socket into which is placed a small wedge or key of steel,
iron or other suitable material which binds the head tightly in position and effectually
prevents it becoming loose.
The accompanying drawings illustrate our invention, the same letters of reference
apply to the different views.
Fig. 1, is a plan of a pick head A shewing the two top gates B and C, having the
projection D in the centre, which fits into the hole E in the end or face of the socket F,
also the gate G in the back of the said head to recieve the wedge or key H.
Fig. 2, is a side view shewing the socket F attached to the shaft I and the hole J
to recieve the wedge or key H.
Fig. 3, is a front view shewing the hollow portion, K, of the socket F, to recieve
the pick head.
Fig. 4, is an end view of the socket F shewing the hole E to recieve the projection D.
Fig. 5, is a side view in elevation shewing the wedge or key H.
Fig. 6, is an end view in elevation of Fig. 5.
Fig. 7, is a view shewing the pickhead A, secured to the socket F with the wedge
or key H in position, holding the said head tightly and preventing it from becoming
loose and dropping out.

page_text: Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed we declare that what we claim is :—
Firstly. Improvements in attaching the heads of picks in sockets affixed to shafts
consisting of a hollow wrought, cast, or malleable iron socket the bottom part of which
is left open for the head to fit into, having a hole at each side and one in the end or
face thereof.
Secondly. In the construction of a wrought or cast iron pick head having gates at
or about the centre, two in the front part and one projection and one gate at the back
thereof, the said projection in the front fitting into a hole in the end or face of the
socket, the gate at the back part of the said head being placed directly opposite the
holes in the sides of the said socket into which is placed a wedge or key made of steel,
iron or other suitable material for the purpose of holding the said head securely in
position and preventing it from coming out.
Thirdly. For an improved method of tightly holding in position several kinds of
pickheads for which one shaft only is required, as hereinbefore specified and described
and as illustrated by the accompanying drawings.
GARLICK & MCGOWAN,
Agents for the Applicants.