Improvements in Miners' Picks, Axes, Hammers, and other similar Articles, and in the Mode of Better Securing the same to the Shaft.
Year: 1890

page_text: Date of Application, 7th July, 1890
Complete Specification Left, 3rd Apr., 1891-Accepted, 9th May, 1891
PROVISIONAL SPECIFICATION.
Improvements in Miners' Picks, Axes, Hammers, and other
similar Articles, and in the Mode of Better Securing the same
to the Shaft.
We ISAAC SHAW of Chester Street Brampton near Chesterfield in the County
of Derby Engineer and Iron Founder and SAMUEL FIDLER of Parker's Yard
Chesterfield aforesaid Miner do hereby declare the nature of this our invention to
be as follows:-
Our improvement is in the mode of attaching or securing picks, axes, hammers
and other similar articles to the shaft. It is made of iron steel or any other
suitable material and is formed in the shape of a socket fitting on to the shaft.
The part of the socket made to fit in the eye of the pick or article to be affixed, is
less than the other part of the socket which latter forms a shoulder for the eye to
There is also a keyway in which a key or taper screw is fitted, and when
either of these is put in, the portion of the socket in the eye of the pick &c. is
expanded, thereby firmly securing the head to the shaft and thus causing the pick &c.
to work solidly when in use.
fit to.
The objects of the above would be to insure greater firmness and solidity in the
article when in use and greater facility for removing and replacing the head of
Buch article.
Dated this Fifth day of July 1890.
ISAAC SHAW.
SAMUEL FIDLER.
COMPLETE SPECIFICATION.
Improvements in Miners' Picks, Axes, Hammers, and other
similar Articles, and in the Mode of Better Securing the same
to the Shaft.
We, ISAAC SHAW of Chester Street, Brampton, near Chesterfield, in the County
of Derby, Engineer, and SAMUEL FIDLER of Parker's Yard, Chesterfield aforesaid,
Miner do hereby declare the nature of this invention 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 the mode of attaching or securing picks, axes, hammers
and other similar articles to the shaft and is designed to give greater firmness and
solidity to the article when in use and greater facility for removing and replacing
the head of such article.
In order that our invention may be the more readily understood we have caused
to be annexed to this Specification a sheet of drawings to the figures and letters of
reference marked thereon we now refer.
Figure 1 is a side elevation of a miner's pick shewing the application of our
invention.
Figure 2 is a plan shewing the shape of the eye in the pick.
Figure 3 is a horizontal section on line 'a,' 'a' of Figure 4.
Figure 4 is a vertical section on line 'b''b' of Figure 3.
Certain parts of the drawings are broken away for the sake of convenience.
An eye A is formed in the pick or other article of the shape shewn on Figure 2
to receive the socket end B which is fixed to the wooden shaft E in any well known

page_text: manner and is made of malleable iron, steel or other suitable material and shouldered
as at C to form a bearing for the head of the pick or other article D.
This socket end has a key-way in it for the reception of a tapered key F which
has a stud or projection G on one or both sides free to slide in the grooves H, H,
the said grooves being stopped at their upper ends I. to prevent the key from falling
out. The key-way terminates in a circular or conveniently shaped opening
sufficiently large to allow the end of the key F with its stud or projection G to pass
through.
When it is desired to fix the pick, hammer, axe or other article to the end of the
shaft, the key F is drawn out at the end and the eye A of the pick or other article
is fitted over it until it bears on the shoulder C, the key is then driven home as
shewn on Figure 1, the portion of the socket end of the shaft in the eye of the pick
or other article is expanded thereby firmly securing the head to the socket end of
the shaft and causing the pick to work solidly when in use.
It will be seen that the key cannot come out or get lost so long as the head of
the pick or other article remains on the shaft as it is necessary to remove the head
before the key can be removed, this is done by turning it sideways and then sliding
it down the slot or key-way and drawing it out through the opening J.
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 :-
1. The shape of the eye A as shewn on Figure 2 for the purposes herein
described.
2. The shoulder C on the socket end of the shaft as and for the purposes
described.
3. The tapered key F with a projection or stud G on one or both sides free to
slide in a key-way with grooves H and capable of being removed or inserted
through the opening J as and for the purposes herein described.
4. The whole substantially as described herein and illustrated by the accom-
panying sheet of drawings.
Dated this 26th day of March 1891.
ISAAC SHAW
SAMUEL FIDLER,
Applicants.