Improvements in Apparatus for Boring Coal, Stone, or the like.
Year: 1893

page_text: Date of Application, 6th Oct., 1893
Complete Specification Left, 6th July, 1894-Accepted, 11th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Boring Coal, Stone, or
the like.
I WILLIAM SKILLING 32
Insurance Agent do hereby
follows:-
The apparatus consists of a malleable iron tube having one end closed and a spike
formed on the centre of this close end at the extrimity of the open end of the
said tube their is a casting fixed of a suitable design to carry two mitre or bevel
wheels which work into each other. Through one of these bevel or miter wheels
that having its axis parallel to the tube which forms the body of the machine there
is a hole bored and a feather or key fixed to fit the screw which carries the drills.
The screw has a grove cut into it which runs the whole lenth and by means of the
feather or key fitted into the aforesaid bevel or miter wheel fitting into this grove
easily the screw may be mad to revolve and at the same time be carried forward
by means of a stationary solid or split nut formed on or fixed into the casting
which is fixed on to the end of the mallable iron tube and forms the end of the
machine. The wheel which has the key fitted into and through which the screw
may travel is actuated by means of the bevel or miter working on to a stud formed
on or fixed to the aforsaid casting.
Kirk Road Wishaw in the County of Lanark
declare the nature of this invention to be as
5th day October 1893.
WILLIAM SKILLING.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Boring Coal, Stone, or
the like.
I, WILLIAM SKILLING, of 32, Kirk Road, Wishaw, in the County of Lanark,
Miner's Agent, 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 :-
This invention relates to improvements in apparatus for boring coal, stone, or
other mineral or like substances, & consists of a malleable iron tube or cylinder C,
having one of its ends closed, & into this end are fastened spikes or prongs for
securely holding the machine in position, when it works. On to the opposite end
of the cylinder C, there is fitted a casting A, of a suitable design to carry the
bevel gear wheels B & E, & the split bush F. The bevel wheel B works loosely
on the stud G., & has a handle H, fitted on to it, which may be firmly pinned or
keyed, as shown on drawings, Nos. 1-2 & 3, or it may be made with a double
end, as shown on drawing No. 4, & having a loose tongue, working on ratchet
teeth, formed on the boss of the bevel wheel B, so that when the machine has to
be used in places where there is not room to get a full turn of the driving handle H,
it may be worked with a reciprocating motion, & the loose tongue afore mentioned,
catching & missing the ratchet teeth on the boss of wheel B, gives to it an inter-
mittent motion, & this motion is communicated to the drill spindle J, by means of
the bevel wheel E.
The front end of the casting A, is made in the form of an oval cylinder, having
one of its ends open, into this cylinder the split bush F, is fitted & arranged, so that,

page_text: when the backs of each half of the said split bush F are brought into contact with
the narrowest part of the oval cylinder, they form a nut, which fits on to the
screwed drill spindle J.
When the split bush F is turned round in the oval cylinder, so that the
back of each half bush comes opposite to the wide part of the cylinder, the
bush opens up sufficiently to clear the screw J., so that when it (the screw) has
been worked out it full length, it may be slipped back at once into the tube
or cylinder C. The screw drill spindle J. has a slot cut along its entire
length & in the bevel wheel E, through which the drill spindle passes, there is
fitted a feather, corresponding to the slot in the spindle J. so that, when the said
spindle is being turned, it will at the same time be drawn or pushed forward,
through the bevel wheel E, by means of the stationary split bush F.
Having now particularly described & ascertained the nature of my said inven-
tion, I declare, that what I claim is―
1st. In having a screw arranged as described & shown in drawings & worked by
means of bevel gearing.
2nd. In having ratchet teeth formed on the boss of bevel wheel, so that the
machine can be worked continuously or intermittently.
3rd. In having screwed split bushes fitted & working in an oval cylinder, so
that when they are in the narrow part, they grip the drill spindle, & when in the
wide part, they are clear.
4th. The combination of the different parts.
Dated this 4th day of July 1894.
WILLIAM SKILLING.