AN IMPROVED BORING MACHINE
Year: 1873

page_text: LETTERS PATENT to William Ridley Carr, Brick Manufacturer, and
John Urwin, Colliery Engineer, both of Scotswood, in the County
of Northumberland, for the Invention of "AN IMPROVED BORING
MACHINE."
PROVISIONAL SPECIFICATION left by the said William Ridley Carr
and John Urwin at the Office of the Commissioners of Patents,
with their Petition, on the 31st December 1873.
WC, WILLIAM RIDLEY CARR, Brick Manufacturer, and JOHN URWIN,
Colliery Engineer, both of Scotswood, in the County of Northumberland,
do hereby declare the nature of the said Invention for “AN IMPROVED
BORING MACHINE," to be as follows:-
This Invention relates to an improved machine or apparatus for
boring fire-clay, coal, shale, limestono, ironstone, freestone, or other
O mineral or hard substances either on the surface of the ground or under-
ground in coal pits or other mines or quarries.

page_text: Our improved boring machine is well adapted for boring holes in coal
walls either when searching for water in old workings or for other
purposes. It is also well adapted for boring holes for the purposes of
blasting, and is so simple and rapid in its action that a man can bore a
hole in a very hard material for the purpose of blasting in about 5
one-tenth of the time generally occupied in the ordinary method of
drilling.
Our improved boring machine or apparatus consists of a frame of iron
or other suitable material in which is mounted gearing to be turned by
a handle. In this framo is also mounted a solid or hollow scrow, one 1
end of which screw is attached to the boring tool by a coupling box
furnished with ratchet wheels, and the other end of the screw is attached
to one of the wheels of the gearing by which both the screw and the
boring tool are caused to revolve.
The bottom of the frame is furnished with sharp spikes and the top 1
with a screw and spiked washer piece, by which means the machino
may be firmly fixed between the floor and roof of the mine in which it
SPECIFICATION in pursuance] of the conditions of the Letters Patent,
filed by the said William Ridley Carr and John Urwin in the Great 2
Seal Patent Office on the 27th June 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
RIDLEY CARR, Brick Manufacturer, and JOHN URWIN, Colliery Engineer,
both of Scotswood, in the County of Northumberland, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her 2
Letters Patent, bearing date the Thirty-first day of December, in tho year
of our Lord One thousand eight hundred and seventy-three, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said William Ridley Carr and John Urwin,
Her special licence that we, the said William Ridley Carr and John 3
Urwin, our exccutors, administrators, and assigns, or such others as we,
the said William Ridley Carr and John Urwin, our executors, adminis-
trators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein

page_text: expressed, should and lawfully might make use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "AN IMPROVED BORING
MACHINE," upon the condition (amongst others) that wc, the said
5 William Ridley Carr and John Urwin, our executors or administrators,
by an instrument in writing under our, or their, or one of their
hands and seals, should particularly describe. and ascertain the nature
of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Scal Patent
O Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that wc, the said William Ridley Carr and John
Urwin, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and
5 ascertained in and by the following statement thereof (that is to say) :-
This Invention relates to an improved machine or apparatus for
boring fire-clay, coal, shale, limestone, ironstone, or any other hard
material, either on the surface of the ground or underground, in coal pits
or other mines or quarries.
Our improved boring machine is well adapted for boring holes in coal
walls either when searching for water in old workings or for other
purposes. It is also well adapted for the boring of holes for blasting
and other purposes.
Having thus described the nature of our Invention we will now
3 proceed to describe our improved machine or apparatus, and the mode of
using the same, reference being had to the accompanying Drawings, and
the letters and figures marked thereon, in each of the Figures of which
Drawings the same letters of reference indicate as far as practicable the
same or similar parts of the machine.
DESCRIPTION OF THE DRAWINGS.
13:
1 is on and amountion
5 .

page_text: Fig. 4 is a side elevation of one of our said machines adapted for
boring from the surface into the rock or material to be bored.
Fig. 5 is an enlarged view in elevation, and Fig. 6 an enlarged view
in plan of the friction boss with the nut and pinching screw.
In Figs. 1 and 2, A, A, is the frame of the machine, the lower portion
of which terminates in spikes to fasten into the floor or one side of
the place in which the machine is being used, and at the upper part is a
screw socket B capable of being elevated or lowered so that the machine
may be adapted to the size of the place in which it is being used. In
this screw socket there is a screw C which may be moved by a cross
head D or by a short lever, and when so moved works in and against the
spiked washer E, which spiked washer being pressed by the screw O
against the roof or other side of the place in which the machine is
being used fixes the apparatus firmly in position. On the frame A there is
a moveable piece F capable of sliding up and down the legs of the frame A
which may be fixed at any part of the said frame A, by the small pinching
screws f, one of which pinching screws presses against each of the legs
of the frame A. In this moveable piece F are slots or recesses to
receive and hold the boss or bearing of the nut of the main screw G.
The nut of the main screw is held in the boss or bearing by a pinching
of pressing screw as shewn at O, Fig. 2, cnlarged views of which are
shewn in Fig. 5 and Fig. 6, the object of this being that if the machine is
being used in very hard material which might break or damage the drill,
the pressure on the boring tool may be regulated so that if the boring
tool is not making way in the material with sufficient speed for the pitch
of the main screw G, instead of the main screw revolving in the nut so
as to advance the boring tool H the nut will revolve in the friction boss
or bearing, so that the tool will not be advanced or pressed forward.
The main screw is attached at one end to the boring tool H by the
coupling box I, which coupling box may be provided with ratchet
wheels and a ratchet lever by which the boring tool and screw may be
turned in case of there not being sufficient room to admit the gearing to
be worked; but since applying for our Patent we have found that the
making the nut so that it is capable of revolving in its boss with an
adjustable amount of friction as has been described, enables us to
dispense with the ratchet wheels on the coupling box, except in the case
above mentioned of there not being room for the gearing. The other
end of the main screw is attached to the centre of the larger wheel K of

page_text: the gearing mounted in the moveable frame M, the spindle of the
smaller wheel L of which gearing is provided with a winch handle 2.
The moveable frame M in which the gearing is mounted has a rod or
bar m attached to it which passes between the legs of the frame A, and
prevents the moveable frame turning round when the winch handle is
being turned.
The mode of using this machine is as follows:-The machine having
been adjusted to the size of the mine, tunnel, or place in which it is to
be used by the screw socket B having been clevated or lowered, the
machine is fixed in position by the screw C. The moveable piece F is then
adjusted to the proper height and fastened there by the pinching screws f
the frame M with the gearing and the main screw G, with its nut and
boss or bearing is placed in position, and the boss placed in the slots or
recesses of the moveable picce F, and the boring tool H is coupled to the
main screw by the coupling box I. The winch handle being turned so
as to advance the main screw G, and with it the boring tool H, the
boring tool will cut its way into the rock or other material to be
bored.
Figs. 3 and 4 represent the machine adapted for boring from the
surface into rock or other material. In this case the mode of fixing
the machine is by means of the clamps or claw pieces X, X, which are
attached to the lower part of the frame A, A, by the hollow screw W
and nut V through which the boring tool H and main screw G pass.
These clamps or claw pieces having been placed in holes cut in the rock
or material to be bored the machine is fastened by the screws C, O, in
the bottom of the frame, pressing the machine up, and so acting against
the clamps or claw pieces X, X, whereby the machine is firmly fixed in
position. The gearing by which the main screw G and boring tool H
are caused to rotate in this machine is by the bevil wheels K. and L. In
this machine instead of one bar m of the moveable frame M in which
the gearing is mounted there are two of such bars m, m, and these bars
pass into the legs of the frame A, A, which are made tubular to receive
them. In this machine there is not any moveable piece F as in that
represented in Figs. 1 and 2, but the friction boss or bearing of the nut
of the main screw is held by the cross piece a¹ of the frame A, A ; and
in order to give this cross piece a¹ greater strength there are two bars or
rods a², a², between it and the lower portion of the frame a³. If it is
desired the coupling box I in this machine may be provided with ratchet

page_text: Signed, sealed, and delivered by
the said William Ridley Carr
WILLIAM RIDLEY CARR. (L.S.)
JOHN URWIN.
and John Urwin, in the
presence of
ROB. KIDD,
Solicitor,
(L.S.)
North Shields.