IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MAKING BORE HOLES FOR MINING AND OTHER LIKE PURPOSES.
Year: 1882

page_text: LETTERS PATENT to Joseph Waddington and Benjamin Longbottom of the
Hindpool Foundry, Barrow in Furness, and James Ashworth of Dalton in
Furness both in the County of Lancaster for an Invention of IMPROVEMENTS
IN MACHINERY OR APPARATUS FOR MAKING BORE HOLES FOR MINING AND
OTHER LIKE PURPOSES.
PROVISIONAL SPECIFICATION left by the said Joseph Waddington,
Benjamin Longbottom, and James Ashworth at the Office of the Commissioners
of Patents on the 19th August 1882.
JOSEPH WADDINGTON and BENJAMIN LONGBOTTOM, of the Hindpool Foundry,
Barrow in Furness, and JAMES ASHWORTH of Dalton in Furness, both in the County
of Lancaster, "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MAKING BORE
HOLES FOR MINING AND OTHER LIKE PURPOSES
"
In a machine for making bore holes for mining and other like purposes according
to this invention in conjunction with means for imparting the requisite up and
down movement to the drill or boring tool we provide adjustable cushioning
apparatus for the purpose of regulating the force of the blow to be given as herein-
alter described.
According to one arrangement a steam cylinder with its accessory mechanism
(which may be arranged to operate in any convenient manner) is fixed to one side
of an iron frame, suitable means being provided for attaching the boring rod, and
boring tool or drill to the outer or lower end of the piston rod. A rocking lever
working on a fixed centre or fulcrum within the iron framing receives motion from
the piston rod to which it is connected at or near one end by means of suitable
links and pivots provided on either side of the cross head or guide block. Upon
the other end or arm of the rocking lever is fitted a movable block or slide so
arranged that it may readily be moved to, and secured to the arm at, a greater or
less distance from the fixed centre or fulcrum. From the upper side of the sliding
block rises a jointed link or connecting rod terminating in a piston or plunger
31

page_text: working within an air chamber or cylinder closed at its upper end but provided
with taps or vents for the escape of air as required and so arranged that the amount
of resistance to be exerted against the arm of the rocking lever as it rises and
therefore inversely upon the boring rods and drill as they descend may be regulated.
The air chamber or cylinder is so mounted upon the framing that by means of
screws or other convenient mechanism it may be moved and its position adjusted
both laterally and vertically.
The entire apparatus mounted upon a frame as above described may be so con-
structed as that by means of a pivot it may when required, as for example when
attaching an additional length of boring rod, be wheeled round so that the steam
cylinder may be removed temporarily from over the bore hole.
By the arrangenient of locking lever, sliding block and air chamber operating in
conjunction with a vertical steam cylinder and piston as above described means are
afforded whereby the resistance to the varying weight of the boring rods may be
correspondingly varied.
In lieu of the above described arrangement of adjustable cushioning apparatus,
or in addition thereto, it might, in some cases, be found desirable to use a spiral
spring or springs so arranged relatively to the arm of the rocking lever as to
produce a similar effect; or the free end of a laminated spring whose other end is
a fixture might be used for the purpose, but we consider the use of an air chamber
and plunger preferable.
The adjustable cushioning apparatus may be arranged in a position below the
rocking lever instead of above it as herein above described.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Waddington, Benjamin Longbottom, and James Ashworth
in the Great Seal Patent Office on the 19th February 1883.
JOSEPH WADDINGTON and BENJAMIN LONGBOTTOM of the Hindpool Foundry
Barrow-in-Furness and JAMES ASHWORTH of Dalton-in-Furness both in the County
of Lancaster IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MAKING BORE
HOLES FOR MINING AND OTHER LIKE PURPOSES
In a machine for making bore holes for mining and other like purposes according
to this invention in conjunction with means for imparting the requisite up and
down movement to the drill or boring tool we provide adjustable cushioning
apparatus for the purpose of regulating the force of the blow to be given as herein-
after described.
According to one arrangement a steam cylinder with its accessory mechanism
(which may be arranged to operate in any convenient manner) is fixed to one side
of an iron frame, suitable means being provided for attaching the boring rod and
boring tool or drill to the outer or lower end of the piston rod. A rocking lever
working on a fixed centre or fulcrum within the iron framing receives motion from
the piston rod to which it is connected at or near one end by means of suitable
links or pivots provided on either side of the cross-head or guide block. Upon the
other end or arm of the rocking lever is fitted a movable block or slide so arranged
that it may readily be moved to, and secured to the arm at, a greater or less
distance from the fixed centre or fulcrum. From the upper side of the sliding
block rises a jointed link or connecting rod terminating in a piston or plunger
working within an air chamber or cylinder closed at its upper end but provided
with taps or vents for the escape of air as required and so arranged that the
amount of resistance to be exerted against the arm of the rocking lever as it rises
and therefore inversely upon the boring rods and drill as they descend may be
regulated. The air chamber or cylinder is so mounted upon the framing that by
means of screws or other convenient mechanism it may be moved and its position
adjusted both laterally and vertically.
The entire apparatus mounted upon a frame as above described may be so con-
structed as that by means of a pivot it may when required, as for example when
attaching an additional length of boring rod, be wheeled round so that the steam
cylinder may be removed temporarily from over the bore hole.
By the arrangement of rocking lever, sliding block, and air chamber operating
in conjunction with a steam cylinder and piston as above described means are
afforded whereby the resistance to the varying weight of the boring rods may be
correspondingly varied.
In the accompanying Drawings Fig. 1. illustrates the general arrangement of
the rocking lever, sliding block, air chamber, and steam cylinder as above
described.
Fig. 2. is a front elevation, Fig. 3. a side elevation, and Fig. 4. a plan view of
our improved machine or apparatus for making bore holes.
In the several figures 1 is the steam cylinder; 2 the piston rod to which is
attached the boring rod 3; 4 the rocking lever working on the fixed centre or
fulcrum 5; 6, 6, connecting links between the cross-head or guide block 7 and one
end of the rocking lever 4. Upon the other end or arm of the rocking lever is
fitted the movable block or slide 8 secured to the arm by means of a cotter 9 or
other convenient device. 10 is a jointed link or connecting rod terminating in a
piston or plunger 11 working within an air chamber or cylinder 12 closed at its
upper end but provided with taps or vents 13, 13, for escape of air as required.
14 is the iron framing forming the body of the improved boring machine or
apparatus upon which is mounted the air cylinder 12 which fits into a movable
frame 15 by means of screw threads 16 so as to be adjustablo vertically; the

page_text: movable frame 15 being adjustable laterally and secured to the framing in the
slots 17 by means of the screw bolts 18. The entire apparatus rests upon a plat-
form 19 and is provided with a pivot 20 (see Fig. 3.) so that it may be wheeled
round on the radial slide 21 when required. 22 is a lever for working the valve
mechanism 23 (connected to the balancing spring 24) by hand and 25, 25, are rods
connected to the valve 26 for turning the steam on or off. 27 is the steam supply
pipe and 28 the exhaust pipe.
In conjunction with the improved boring apparatus as above described we
arrange mechanism actuated by the rocking lever available for hoisting the boring
rods out of the bore holes. 29 is a chain barrel or hoisting drum mounted upon
the shaft or axis 30, from which the chain may pass over a pulley or pulleys sus-
pended from a derrick or shear legs, or placed in any convenient position. Motion
is imparted to the chain barrel 29 through the medium of the grooved pulleys 31
by means of oscillating bearers 32 carrying cams or choke pawls 33 to which a
reciprocatory motion is given by the up and down movement of the rocking lever 4
through the links 34, bell crank levers 35, and connecting rods 30. By removing
the pins 37 the links 34 may be disengaged from the pivotted block 38 and swung
back out of the way when the hoisting mechanism is not required to be in action.
The hoisting drum 29 and grooved pawl pulleys 31 are keyed on to a barrel or
bush 39 working loose upon the shaft 30; one end of the loose barrel 39 being
provided with a jaw clutch 40 which engages with a corresponding clutch 41
sliding upon a fast key upon the shaft 30. 42 is a handle or lever for actuating
the sliding clutch 41 and 43 is a handle or lever connected to an ordinary friction
brake 44 on the brake wheel 45 keyed on to the shaft 30.
In lieu of the hereinabove described arrangement of cushioning apparatus, or in
addition thereto, it might, in some cases, be found desirable to use a spiral spring
or springs so arranged relatively to the arm of the rocking lever as to produce a
similar effect; or the free end of a laminated spring whose other end is a fixture
might be used for the purpose, but we consider the use of an air chamber and
plunger preferable.
The adjustable cushioning apparatus may be arranged in a position below the
rocking lever instead of above it as hereinabove described.
Having now described the nature of the said Invention and the manner of
performing it, we desire to be understood that we do not intend to claim any of
the mechanical parts of the apparatus hereinbefore described and shewn when taken
separately and apart from the combination or application thereof in manner and
for the purpose herein described, but what we consider to be novel and original
and therefore claim as secured to us by the hereinbefore in part Letters Patent is as
follows (that is to say):-
1. The arrangement of a rocking lever, sliding block, and air chamber operating
in conjunction with a vertical steam cylinder and piston rod substantially as
described and shewn in the Drawings for the purpose specified.
2. The combination of parts constituting the improved machine for making
bore holes constructed, arranged, and operating substantially as described and
shewn in the Drawings.
In Witness whereof we the said Joseph Waddington and Benjamin Long-
bottom have hereunto set our hands and seals this thirteenth day of
February in the year of our Lord one thousand eight hundred and eighty
JOSEPH WADDINGTON
(L.S.)
BENJAMIN LONGBOTTOM (L.S.)