AN IMPROVED METHOD OF AND APPARATUS FOR CUTTING OR QUARRYING SLATE, STONE, OR OTHER LIKE SUBSTANCES
Year: 1876

page_text: LETTERS PATENT to William Orme Carter, of Liverpool, in the County of
Lancaster, Merchant, for the Invention of "AN IMPROVED METHOD OF AND
APPARATUS FOR CUTTING OR QUARRYING SLATE, STONE, OR OTHER LIKE
SUBSTANCES."
Sealed the 4th August 1876, and dated the 18th March 1876.
"
PROVISIONAL SPECIFICATION left by the said William Orme Carter at
the Office of the Commissioners of Patents on the 18th March 1876.
WILLIAM ORME CARTER, of Liverpool, in the County of Lancaster, Merchant.
'AN IMPROVED METHOD OF AND APPARATUS FOR CUTTING OR QUARRYING SLATE,
STONE, OR OTHER LIKE SUBSTANCES."
My Invention has for its object an improved method of and apparatus for cutting
or quarrying slate, stone, or other like substances. For these purposes a suitable
bed or bean is fixed against the face of the rock to be cut or quarried. This bed or
beam has formed on it dovetail or other suitable guides, and there is a longi-
tudinal toothed rack formed or applied thereto in order that a carriage with a drill
may travel or be moved from end to end of the bed or beam. The drill carriage is
received on to, and (in sliding to and fro) is guided by dovetail or other guides.
The axis of the drill turns in suitable bearings on the drill carriage. The axis of
the drill receives rotary motion by means of a bevel toothed wheel fixed on its axis
gearing into a bevel toothed wheel on a long shaft, which runs in bearings at the
two ends of the bed or beam, and passes through a hollow projecting bearing on
one side of the drill carriage. The long shaft receives motion from a steam engine
or other motor by means of an endless rope or band, which drives a pulley on a
shaft at one end of the bed or beam, on which axis is a pinion which gears into a
cog wheel fixed on one end of the long shaft, and there are also bevel wheels on axis
to reverse the motion of drill, and reverse the travelling drill carriage.
The long shaft is grooved or has a projecting feather from end to end of its
length, in order that the bevelled toothed wheel thereon may turn therewith but
slide thereon as the drill carriage is progressively moved along the bed or beam.
The movement of the drill carriage along the bed or beam is produced by means of
Price 671

page_text: a pinion, the axis of which turn in bearings fixed to the drill carriage. On this
axis of the pinion is a screw or worm wheel, which receives motion from a screw or
worm on a shaft carried by the drill carriage, which receives motion from the long
shaft by a screw or worn which turns with but slides along the long shaft, such
screw or worm taking into a screw or worm wheel fixed at one end of the shaft
which is on the drill carriage.
The drill shaft works horizontally in suitable bearings upon the drill carriage,
and is hollow with a nut inside, which receives a screw working down it attached
to a cross head on the top, and this motion raises or lowers the drill as
into the rock.
goes
down
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Orme Carter in the Great Scal Patent Office on the 12th
September 1876.
WILLIAM ORME CARTER, of Liverpool, in the County of Lancaster, Merchant.
"AN IMPROVED METHOD OF AND APPARATUS FOR CUTTING OR QUARRYING SLATE,
STONE, OR OTHER LIKE SUBSTANCES."
My Invention has for its object an improved method of and apparatus for cutting
or quarrying slate, stone, or other like substances. For these purposes a suitable
bed or beam is fixed against the face of the rock to be cut or quarried. This bed
or beam has formed on it dovetail or other suitable guides, and there is a longitu-
dinal toothed rack formed or applied thereto in order that a carriage with a drill
may travel or be moved from end to end of the bed or beam. The drill carriage is
received on to and (in sliding to and fro) is guided by dovetail or other guides. The
axis of the drill turns in suitable bearings on the drill carriage. The axis of the
drill receives rotary motion by means of a bevelled toothed wheel fixed on its axis
gearing into a bevelled toothed wheel on a long shaft, which runs in bearings at the
two ends of the bed or beam, and passes through a hollow projecting bearing on one
side of the drill carriage. The long shaft receives motion from a steam engine or
other motor by means of an endless rope or band which drives a pulley on a shaft
at one end of the bed or beam, on which axis is a pinion which gears into a cog
wheel fixed on one end of the long shaft, and there are also bevel wheels on axis to
reverse the motion of drill and reverse the travelling drill carriage.
The long shaft is grooved or has a projecting feather from end to end of its
length, in order that the bevelled toothed wheel thereon may turn therewith but
slide thereon as the drill carriage is progressively moved along the bed or beam.
The movement of the drill carriage along the bed or beam is produced by means of
a pinion, the axis of which turn in bearings fixed to the drill carriage. On this axis
of the pinion is a screw or worm wheel, which receives motion from a screw or
worm on a shaft carried by the drill carriage, which receives motion from the long
shaft by a screw or worm, which turns with but slides along the long shaft, such
screw or worm taking into a screw or worin wheel fixed at one end of the shaft
which is on the drill carriage.
The drill shaft works in suitable bearings upon the drill carriage, and is hollow
with a nut inside, which receives a screw working down it attached to a cross
head on the top, and this motion raises or lowers the drill as it goes down into the
rock.
The before-going being the nature, object, and purposes of this my Invention I
will now proceed to describe more in detail how the same may be carried out into
practical effect, and for that purpose I have hereunto attached two Sheets of
Drawings marked with letters and figures of reference corresponding with those in
the following explanation. Like letters and figures are used to denote similar parts
throughout the various views. The scale is 3-inches 1 foot.
-

page_text: Figure 2 is a section through A, B, Figure 1.
Figure 3 is a section through C, D, Figure 1.
Figure 4 is a plan of drill stay or guide.
Figure 5 is a section through E, F, Figure 1.
Figure 6 is a top view or plan of Figure 1.
Upon reference to the Drawings it will be seen that the apparatus shown consists
of a drilling apparatus carrying three drills, but it will be evident that the number
of drills can be increased or reduced as required.
A is a bed or beam, which is fixed against the face of the rock to be cut or quarried,
by means of the flanges A¹ which take into suitable brackets, which are provided for
that purpose and fixed in position on the face of the rock. The bed A has formed on it
the dovetailed guides A. The longitudinal toothed rack B is formed on or bolted
to the bed A. C is a carriage which travels on the bed A, and can be moved from
end to end thereof, and carries the drills D, D1, D2. The axis or spindles F, F, F³,
of the drills D, D1, D2, are carried by and turn in the bearings E, E¹, E², on the
carriage C. The spindles F, F1, F2, receive rotary motion from the bevelled toothed
wheel G, which gears into the bevelled toothed wheel H, which is carried on the
driving shaft K. The wheel G also drives the toothed wheels I, II, and thereby the
spindles F¹, F. The driving shaft K is carried by the bearings J on the ends of
the bed A, and is driven, as shown, by a pulley, or by toothed gear, or a connected
engine, as may be most convenient.
The driving shaft K passes through the bearings L, L', on the drill carriage C,
and is provided with a groove or projecting feather, so that the wheel H is free to
move along the shaft, and at the same time receives rotary motion.
The movement of the drill carriage C along the bed A is produced by means of a
worm M driven by and free to slide on the shaft K. The worm M gears into the
worm wheel N, which in its turn drives the shaft O, and thereby the worm P and
the train of wheels Q, Q, Q. The wheels Q, Q, gear into the rack B, and thereby
the carriage C is moved along the bed A.
The drills or cutters are shipped on the spindles F, F1, F2, at D, D1, D2, and in
practice are arranged to cut at varying depths, say, each drill one quarter of an inch
deeper than the other.
The depth of the drills is regulated by the hand wheels R, R¹, R, which work
the screwed spindles S, SI, S, and thereby regulate the depth at which the spindles
F, F, F, rotate.
When the drills are working in a deep cut I use the guide piece T to steady the
drills.
In operation the bed A is fixed on to the face of the rock to be cut; the drills
being set to the required depth, and the apparatus started, a groove or slot is cut
in the rock by the combined rotating of the drills and the travel of the drill
carriage.
Having now described and ascertained the nature, object, and purposes of my
Invention, and shown a means by which the same may be carried out, I would have
it understood that I do not confine myself to the exact mechanical details, dimen-
sions, or arrangement of parts as shown in the Drawings, as the same may be
considerably varied without departing from my Invention (for example, a screw
motion may be substituted for the rack and pinion motion, causing the drill carriage
to travel on the bed), but what I claim as my Invention and secured to me by
Letters Patent as aforesaid is,-
Firstly. The method of cutting or quarrying slate, stone, or other like substances
by the combined rotary action of the drill or drills and the travel of the drill
carriage, substantially in the manner and for the purposes set forth.
Secondly. The combination of a bed or beam such as A, having a rack such as B,

page_text: and carrying a travelling carriage such as C, upon which is mounted rotating drills
such as D, D¹, D³, the whole geared, driven, and arranged to work together, part to
part, in manner such as shown in the accompanying Drawings for the purposes
specified.
In witness whereof, I, the said William Orme Carter, have hereunto set my
hand and seal, this Eleventh day of September, in the year of our Lord
One thousand eight hundered and seventy-six.
WILLIAM ORME (L.S.) CARTER,