Improvements in Coal and Stone Drills and the like Mining Tools.
Year: 1899

page_text: Date of Application, 24th June, 1899
1000
Accented: 28th Apr., 1900
PROVISIONAL SPECIFICATION.
Improvements in Coal and Stone Drills and the like Mining Tools.
We, WILLIAM FAWCETT OSBORN, of the Clyde Steel Works, Wicker, Steel
fanufacturer, JAMES MOREWOOD and HENRY MOREWOOD, of the Buffalo Works,
Soho Street, Auger Manufacturers, all of Sheffield, in the County of York, do
hereby declare the nature of our said invention to be as follows:-
Although our invention is applicable to a variety of implements it is more
particularly applicable to a coal drill, which in the ordinary method of con-
struction is formed at one end somewhat after the fashion of a twist drill or
screw auger and at the other end with a hoop or socket into which is inserted a
wooden handle by which the implement is actuated.
As these implements are liable to become worn and broken at their cutting or
bit ends; by the present method of manufacture, the whole of the implement,
including the handle and shank, is thrown into disuse, and the object of our
invention is to construct such an implement, that the cutting or bit end can be
detached from the shank or handle end and replaced by another, and in this
manner a saving in weight and expense is effected.
We carry out our invention as follows:.
To the handle or shank end of the implement we attach a sleeve or socket,
such sleeve or socket being of the required size and section to fit the shank of
the cutting end or bit end, the several parts being secured together by pins,
rivets, set screws, or their equivalents.
We construct the shank portions of the implement, both at the handle and
cutting or bit ends, of the same section either square, octagon, or round, with sleeves
or sockets, to match, but by preference we employ an elliptical section for the
shanks of both parts of the implement, the sleeve or socket of which we construct
5 out of a flattened tube of suitable size and strength for the purpose, the several
parts being secured together as already indicated.
Tuo 1899.
Improvements in Coal and Stone Drills and the like Mining Tools.
We, WILLIAM FAWCETT OSBORN, of Clyde Steel Works, Wicker, Steel
Manufacturer, JAMES MOREWOOD and HENRY MOREWOOD, of the Buffalo Works,
Soho Street, Auger Manufacturers, all of Sheffield, in the County of York, do

page_text: hereby declare the nature of our said invention and in what manner the same is
to be performed to be particularly described and ascertained in and by the
following statement:
Although our invention is applicable to coal and stone drills it is more particu
larly applicable to a coal drill, which in the ordinary method of construction is
formed at one end somewhat after the fashion of a twist drill or screw auger
and at the other end with a hoop or socket into which is inserted a wooden
handle by which the implement. is actuated.
As these implements are liable to become worn and broken at their cutting
or bit ends, by the present method of manufacture, the whole of the implement,
including the handle and shank, is thrown into disuse, and the object of our
invention is to construct such an implement, that the cutting or bit end can be
detached from the shank or handle end and replaced by another and in this
manner a saving in weight and expense is effected.
The nature of our invention will be better understood on reference to the
accompanying sheet of drawings in which,
Fig. 1, is a front elevation of a handle or shank of a coal or stone drill fitted
with a sleeve or socket.
Fig. 2, is a side elevation, of the same.
Fig. 3, is a section of the socket.
Fig. 4, is a front elevation of the cutting end or bit end of a coal or stone
drill, made with a shank to fit the sleeve or socket on the handle.
Fig. 5, is a side elevation of the same.
Fig. 6, is a section of the shank.
Fig. 7, is an elevation of a coal or stone drill fitted up complete ready for use.
We carry out our invention as follows:
To the handle or shank end, a, of the implement we attach a sleeve or
socket, b, such sleeve or socket being of the required size and section to fit
the shank of the cutting end or bit end, c, the several parts being secured
together by pins, rivets, set screws, d, d, or their equivalents.
We construct the shank portions of the implement, both at the handle and
cutting or bit ends, of the same section either square, octagon, or round, with
sleeves or sockets, to match, but by preference we employ an elliptical section,
for the shanks of both parts of the implement, (Fig. 6) the sleeve or socket, b,
of which we construct out of a flattened tube of suitable size and strength for
the purpose, (Fig. 3) the several parts being secured together as already
indicated.
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: -
1. In a coal drill or like mining implement, the construction arrangement
and combination of parts and appliances, by means of which the cutting or bit
end of such an implement may be detached from the shank or handle end of
the same and replaced by another, in the manner and for the purposes substan-
tially as herein described and illustrated.
1091 day of Vanah 1000
. R. HEBER RADFORD,
Agent for the Applicants.