Year: 1886

page_text: THOMAS DUNN No 53 Denham Terrace Wallsend n Newcastle on Tyne
Blacksmith do hereby declare the nature of this invention to be as follows:-
This invention is intended to improve picks for the use of Miners and others,
embracing the quality of fastening in a solid and firm manner; detachable points,
being at the same time an improved manner in fastening Head or stock of pick to
socket of handle.
Head or Stock of pick to be formed with socket ends for points with slot or
key-way inside extending from eye of pick or stock to inner end of socket for key
or point fastener.
Points to be formed with sterns corresponding to sockets in head or stock with
a recess or notch in stem for receiving key or fastener.
Recess in eye of pick or stock for receiving head of fastener and for the purpose
of disconnecting points from the head or stock of pick.
Socket of handle to be formed with slots to admitt keys for holding pick firmly
and to prevent pick from slipping on socket of handle, also to adjust key of fastener
of points.
Keys may be made with taper heads, split or screw ends and nuts.
This invention to be used with or without these keys, when used without keys
a socket without slots to be used.
The advantages gained by this form of pick over others in use are the workman
can have any number of sharp points, the cost of which will be considerably less,
in proportion to the ordinary picks and less tendancy of pick slipping or becoming
loose on socket of handle.

page_text: I, THOMAS DUNN of 53 Denham Terrace Wallsend near Newcastle upon Tyne,
Blacksmith do hereby declare the nature of my invention for IMPROVEMENT IN
MINERS AND OTHER PICKS and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement :-
Invention intended to improve Picks for the use of Miners and others embracing
the quality of fastening in a solid and firm manner detachable points being at the
same time an improved manner of fastening Head or Stock of Pick to Socket of
Handle.
According to this Invention
Head or Stock of Pick to be formed with Socket ends Fig. 1 to 5 for Points with
Slot or Key way inside extending from eye of Pick or Stock to inner end of Socket
for Key or point fastener.
Points to be formed with Stems corresponding to Sockets in Head or Stock with
a recess or notch in Stem for receiving Key or fastener, Fig. 1 to 5.
Points can be made with a groove next to shoulder to prevent injury to shoulder
in sharpening and points can be made angular square or other shape.
Recess fig. 1. 3. 5 in eye of Pick or Stock for receiving head of fastener and for
the purpose of disconnecting points from the Head or Stock of Pick.
Socket of Handle Fig. 5. to be formed with Slots to admit Keys fig. 5 for
holding pick firmly and to prevent pick from slipping on socket of handle also to
adjust Key or fastener of points. Keys may be made with taper heads split or
screw ends and nuts. This invention to be used with or without Keys. When
used without Keys a socket with flat ends and without slots to be used, Fig. 1.
The same principle or effect can be applied by allowing the point stems Fig. 2
with a dovetailed end to go into eye of Stock or Pick and a corresponding recess
in socket of handle, socket of handle when driven into pick acting as a lock or
fastener, or the same result may be obtained by a Cam Lever motion Fig. 3 the
socket acting as the Lock or fastener.
The manner of disconnecting the pick is by taking out the handle keys and
point fastener Fig. 5. 1, when the points will be easily taken out, in Fig. 1. 5 by
taking out the handle, in Fig. 3 by taking out the handle and pushing Lever more
towards centre of eye of pick.
The advantages gained by this form of pick over others in use are the workman
can have any number of sharp points the cost of which will be considerably less
in proportion to the ordinary picks, less tendency of pick slipping or becoming
loose on socket of handle, less trouble in carrying points to and fro in sharpening
also the property of retaining a more fixed and immovable position when subject
to concussion than any with loose points that have been in use previously:

page_text: 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 I claim
as novel
1st The Key as applied as fastener of Points Fig. 1 5 and 6.
2nd The application of Point Stems entering Socket of handle through Socket
of Pick or Stock Fig. 2.
3rd The Cam Lever as applied as a fastener of Points Fig. 3.
4th The Socket of handle as applied as a complete Lock or fastener in each case,
Fig. 1.
5th The mode of applying Keys as fastener of Pick or Stock in Fig. 5 and 6 to
socket of handle.