Improvements in Rock Drills.
Year: 1888

page_text: Date of Application, 27th Dec., 1888
Complete Specification Left, 25th Sept., 1889-Accepted, 16th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Rock Drills.
We, THOMAS HUGH BELL, of Middlesborough, in the County of York, Iron
Master, ADDISON LANGHORN STEAVENSON, of Holywell Hall, near the City of: Durham,
Mining Engineer, and ROBERT CLOUGH, of Page Bank Colliery, Willington, in the
County of Durham, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object improvements in rock drills. In its general
features the improved rock drill is similar to that described in the Specifications of
our former Patents No. 9985 in the year 1885 and No. 2928 in the present year.
We now combine these rock drills with petroleum engines in the following
manner as before the apparatus in mounted upon a four wheeled bogie and in the
centre of the bogie platform there is a standard capable of being rotated about its
vertical axis to adjust the position of the drill to its work. Upon this standard we
mount the cylinder of the petroleum engine; the cylinder lies horizontally and it
drives a horizontal shaft upon which is a fly wheel or fly wheels.
Mounted upon the horizontal shaft there is a frame capable of turning about the
shaft to raise and lower the drilling mechanism which is mounted upon the outer end
of the frame. On the shaft of the petroleum engine there is also a spur wheel and
this drives another spur wheel on an axis carried in bearings on the moveable frame.
On the same axis is a bevilled wheel and this drives another bevilled wheel on the shaft
which actuates the drill. This shaft extends along the moveable frame and is at right
angles to the shaft of the petroleum engine. The shaft which actuates the drill also
has upon it a bevilled wheel which can be brought into gear with another bevilled
wheel on a vertical shaft which-is-geared-with the axle of the bogie and so the
apparatus is propelled from place to place.
The petroleum is brought to the engine in portable tanks capable of being
securely closed. The exhaust from the engine is made into a vessel in which is a
water spray.
Sometimes we arrange the petroleum engine with its cylinder vertical and forming
part of the standard. The moveable frame pivots about an horizontal axis near the top
of the standard, whilst the shaft of the petroleum engine is near the lower end. The
engine shaft drives by bevilled gear a vertical axis which at its upper end carries a
pinion engaging with a bevilled wheel on the same pivot with the moveable frame.
The shaft which drives the drill is carried by the moveable frame and has a pinion
upon it which in all positions of the frame is in gear with the bevilled wheel at the
pivot. The shaft of the petroleum engine by means of a bevilled wheel drives a
corresponding wheel upon the standard and this by a chain and chain wheel drives a
vertical axis geared with the axle of the bogie and so the apparatus is propelled when
moving from place to place.
Sometimes we fix the cylinder of the petroleum engine to the platform of the bogie
in an horizontal longitudinal position. The shaft of the engine is vertical and passes
up through the centre of the standard. By means of a bevilled pinion it drives a
wheel on the pivot of the moveable frame and a pinion on the shaft which conveys
motion to the drill gears with this wheel in all positions of the moveable frame. Το
propel the bogie from place to place the shaft of the engine is geared with an
horizontal shaft which in turn drives a shaft parallel with the axle and geared with it.
Dated this 20th day of December 1888.
THOMAS HUGH BELL.
ADDISON LANGHORN STEAVENSON.
ROBERT CLOUGH.

page_text: COMPLETE SPECIFICATION.
Improvements in Rock Drills.
We, THOMAS HUGH BELL, of Middlesborough in the County of York, Iron Master,
ADDISON LANGHORN STEAVENSON of Holywell Hall near the City of Durham Mining
Engineer and ROBERT CLOUGH of Page Bank Colliery Willington in the County of
Durham Engineer, 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 has for its object improvements in rock drills. In its general
features the improved rock drills is similar to that described in the Specifications of
our former Patents No. 9985 in the year 1885 and No. 2928 in the present year.
We now combine these rock drills with petroleum engines in the following
manner as before the apparatus is mounted upon a four wheeled bogie and in the
centre of the bogie platform there is a standard capable of being rotated about its
vertical axis to adjust the position of the drill to its work. Upon this standard we
mount the cylinder of the petroleum engine, the cylinder lies horizontally and it drives
a horizontal shaft upon which is a fly wheel or fly wheels.
Mounted upon the horizontal shaft there is a frame capable of turning about the
shaft to raise and lower the drilling mechanism which is mounted upon the outer end
of the frame. On the shaft of the petroleum engine there is also a spur wheel and
this drives another spur wheel on an axis carried in bearings on the moveable frame.
On the same axis is a bevilled wheel and this drives another bevilled wheel on the
shaft which actuates the drill. This shaft extends along the moveable frame and is at
right angles to the shaft of the petroleum engine. The shaft which actuates the drill
also has upon it a bevilled wheel which can be brought into gear with another bevilled
wheel on a vertical shaft which is geared with the axle of the bogic and so the
apparatus is propelled from place to place.
The petroleum is brought to the engine in portable tanks capable of being securely
closed. The exhaust from the engine is made into a vessel in which is a water-
spray.
Of the annexed drawings Figure 1 is a side elevation Figure 2 is a plan and Figure 3
is an end elevation of a rock drill of this construction. All these figures are partly in
section.
A is the wrought iron bogie carriage. B is the cylinder for the petroleum engine
giving motion to the drill and traversing the machine from place to place. C is the
crank shaft of the engine. D is the fly wheel. E is the worm and worm wheel for
revolving the pillar or standard of which the worm wheel forms part. e e are bearings
on this standard in which the shaft C turns. The cylinder B is fixed to these
bearings, and to the standard. F is a cast iron foot on the revolving standard it is
received into a socket on the bogie carriage. G is a worm and worm wheel or
segment; the former is carried in bearings on the cylinder B. H is a frame or
hollow bar forked at one end, and here the shaft C passes through it. Upon the
other end of the frame the drilling attachment is mounted. This part of the bar
is separate from the other but held by a coupling X which admits of its being
turned. The segment G is fixed upon the frame H. I is a worm and
worm wheel for turning the fore end of the bar H to adjust the position of
the drilling attachment. J is a pair of bevil wheels for working the drill from a
shaft which passes through the frame H. K is a plate fixed at the end of the frame H.
L is a circular ring with flange fixed on to the plate. M is a bracket held within the
ring L in which it can turn. On the bracket M the drill and gearing is mounted, a set
screw is provided for clamping the bracket. N N are bevil wheels for giving motion to
the drill. O are four spur wheels for giving the feed to the drill. P is a split nut
driven by the wheels 00 and with arrangement for opening by hand, for the purpose
of drawing the drill back. Qis the boring bar with screw thread cut upon it and
a keyway the full lengths. The bar passes through the hollow axis of one of

page_text: the wheels N and is driven by it. R is an universal joint. S is the drill. T T are
bevil wheels for driving the wheels of the bogie carriage to travel from place to place.
U is a footstep cast on the worm wheel E; it can turn in a socket on the bogie
carriage. V is a clutch to put in and out the travelling gear.
W Ware gear
wheels for transmitting motion from the crank shaft to the axis within the
frame H. X is the coupling between the two ends of the bar H. 2 is a petroleum
tank.
Sometimes we arrange the petroleum engine with its cylinder vertical and
forming part of the standard. The moveable frame pivots about an horizontal axis
near the top of the standard, whilst the shaft of the petroleum engine is near the
lower end. The engine shaft drives by bevelled gear a vertical axis which at its
upper end carries a pinion engaging with a bevelled wheel on the same pivot with the
moveable frame. The shaft which drives the wheel is carried by the moveable frame
and has a pinion upon it which in all positions of the frame is in gear with the bevelled
wheel at the pivot. The shaft of the petroleum engine by means of a bevelled wheel
drives a corresponding wheel upon the standard and this by a chain and chain wheel
drives a vertical axis geared with the axle of the bogie and so the apparatus is pro-
pelled when noving from place to place.
Figure 4 is a side elevation partly in section, Figure 5 is a plan and Figure 6 is an
end elevation of a rock drill of this construction.
Figure 7 is a rear elevation of the drilling appliance.
In these figures A is a wrought iron bogie. B the cylinder for the petroleum engine
giving motion to the drill and traversing the machine from place to place; it forms
part of the standard. C is the crank shaft. D is the fly wheel. E is the worm and
worm wheel for revolving the standard. FF are the bearings for the crank shaft,,
they are carried upon the standard. G is the worm and worm wheel for moving.
the drill up or down. H is the frame on one end of which is fixed the drilling
attachment. I is the worm and worm wheel for turning the frame round. J J
are a pair of bevil wheels for working the drill from the connecting, shaft, passing,
through the frame H. K is a plate fixed at the end of the frame.. L is a ring
with Hange fixed on to the plate. M is a bracket working, within the ring. L, on
it the drill and gearing is fixed. N N are bevil wheels for giving motion to the
drill. O is a split nut with arrangement for opening by hand for the
-purpose of
drawing the drill back. P is the boring, bar with keyway the full length. is an
universal joint. R is the drill.. S are bevil wheels and chain for moving the
machine. T is a footstep cast on the cylinder B. U is a clutch to put in and out
the traversing gear.
Vare bevil wheels for gearing the crank shaft with the axis
in the frame H W is a clutch on one of the bevil wheels V. X are spur, wheels
for giving feed' to the drill.
Sometimes we fix the cylinder of the petroleum engine to the platform of the
bogie in an horizontal longitudinal position. The shaft of the engine is vertical and
passes up through the centre of the standard. By means of a bevilled pinion it
drives a wheel on the pivot of the moveable frame and a pinion on the shaft which
conveys motion to the drill gears with this wheel in all positions of the moveable
frame. To propel the bogie from place to place the shaft of the engine is geared
with an horizontal shaft which in turn drives a shaft parallel with the axle and
geared with it.
Figures 8, 9 and 10 shew a rock drill arranged in this manner.
Figure 8 is a side elevation partly in section. Figure 9 is a plan and Figure 10
is an end elevation.
C is
In these figures A is the carriage. B is the cylinder for petroleum engine.
the vertical crank shaft. D is the fly wheel. E is the worin and worm wheel for
revolving the standard. F is a bracket forming part of the standard and carrying
the drilling machine. G is a worm and wheel for raising the drill. H is the frame
on one end on which is fixed the drilling attachment, it is moveable about an axis
carried by the bracket F. I is a worm and worm wheel for turning the fore part of
the frame H. J is a pair of bevil wheels for working the drill. K is a plate fixed at

page_text: the end of the frame H. L is a ring with flange fixed on to the plate. M is a
bracket working within the ring L. N are bevil wheels for giving motion to the
drill. O are spur wheels for giving feed to the drill. P is the split nut. Qis the
boring bar. R is an universal joint. S is the drill. Tare gear wheels for propelling
the machine. U is a footstep. V is a clutch. Ware bevel wheels for giving motion
to the drill they connect the crank shaft with the axis carried with the hollow bar or
frame H. X is a clutch on one of the bevel wheels W. I is a petroleum tank.
Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to he performed we declare that what we
claim is :-
1. A rock drill substantially as described in respect to Figures 1, 2 and 3 in which
a carriage supports a standard which can be rotated about a vertical axis and has
attached to it a petroleum engine and a frame capable of turning in a vertical plane
about the crank shaft of the engine; such frame carrying drilling mechanism and
gear for transmitting movement from the crank shaft to the drill as herein set forth.
2. A rock drill substantially as described in respect to Figures 4, 5 and 6 in which
a carriage supports a standard which can be rotated about a vertical axis and has
attached to it a vertical petroleum engine and also a frame moveable about an hori-
zontal axis at the upper end of the standard; such frame carrying the drilling
mechanism and gear for transmitting motion to this mechanism from the axis which
supports the frame; which axis is in turn geared with the crank shaft of the
engine as herein set forth.
3. A rock drill substantially as described in respect to Figures 8, 9 and 10 in
which a carriage supports a standard which can be rotated about a vertical axis
and also a petroleum engine with a vertical crank shaft rising through the centre
of the standard; in which also there is a frame mounted on an horizontal axis at
the top of the standard and carrying drilling mechanism and gear for transmitting
motion thereto from a bevilled pinion on the upper end of the crank shaft as
herein set forth.
4. Rock drills substantially as represented by the annexed drawings.
Datad 11. 3
г a
Ther 1.003.
T. HUGH BELL.
ADDISON LANGHORN STEAVENSON.
ROBERT CLOUGH.