Improvements in Machines for Channelling Stone.
Year: 1891

page_text: Date of Application, 30th Oct., 1891-Accepted, 5th Dec., 1391
COMPLETE SPECIFICATION.
[Communicated from abroad by THE INGERSOLL-SERGEANT DRILL COMPANY,
a Corporation organized under and existing by virtue of the laws of the State
of West Virginia, and having its principal business office at No. 10, Park
Place, in the City of New York, State of New York, United States of
America.]
Improvements in Machines for Channelling Stone.
I, PHILIP ARTHUR NEWTON of the Office for Patents, 6 Bream's Buildings,
Chancery Lane in the County of Middlesex, Patent 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 :-
The object of this invention is to provide a convenient machine which may be
easily so adjusted that the drills or channelling tools may operate either vertically
or horizontally, or at any angle between vertical and horizontal, as may be
necessary in quarrying operations.
A machine embodying the improvements which constitute the invention, consists
essentially of a drilling engine substantially like an ordinary rock-drill, a carriage
upon which said engine is mounted, a frame upon which sald carriage is capable of
moving in the direction of the length of the channel to be cut, and standards on
which the said frame is pivotted in such manner that it and the said carriage may
be placed in either a vertical or a horizontal, or in any intermediate position.
The following is a description of the invention, with reference to the accompanying
drawings, of a channelling machine.
Fig. 1 represents a front view, partly in section, of the machine, showing it
adjusted for the vertical action of the drill or channelling tool.
Fig. 2 is an end view corresponding with Fig. 1.
Fig. 3 represents a transverse vertical section of the machine, showing it
adjusted for the horizontal operation of the drill or tool, as in what is termed
gadding."
66
Fig. 4 is a plan view of the drilling machine and its carriage, and part of the
pivotal frame upon which the said carriage moves.
Fig. 5 is a side view of one of two cross-heads which constitute parts of the
standards which support the pivotal frame.
Fig. 6 represents a transverse section of the carriage, and a top view of the drill
stock.
Fig. 7 is a side view, partly in section, of the lower part of the piston rod of the
engine, the clutch, and the channelling tool stock.
Similar letters of reference designate corresponding parts in all the figures.
A is the drilling engine, the air or steam cylinder of which is represented as
fitted to slide lengthwise within ways in a drill back B, in the same manner as the
cylinders of rock drills in common use. The drill back B is secured, by a clamping
bolt a and nut a', to a carriage C, which is furnished with boxes bb, which are
fitted to slide upon the two parallel longitudinal bars D D of the pivotal frame.
The said pivotal frame consists principally of the aforesaid parallel bars DD,
and two heads E E connecting the said bars. The said bars are represented as
made of wrought metal tubing, and the said heads as being constructed (see the
right hand of Fig. 1) with hollow bosses c c, which enter into the said tubes, and
the said bars and heads are shown secured together by rods d d, which pass through
the said bars and heads, and the ends of which are screw threaded to receive
nuts d¹¹ outside of the heads. The heads E E have bearings bored in their ends,
to make the pivotal connections between the frame and the cross heads G G of the

page_text: standards, the said cross heads being provided with pivots e e, as shown at the right
of Fig. 1, which fit the said bearings in the heads.
The standards consist each of a cross head G, and two parallel cross bars HH,
and two legs II, the said cross bars passing through sockets 9 g, provided on the
cross head, and the said legs, which are straight round rods, passing through
sockets provided on the said cross bars, the cross bars H H on either_cross
head having their sockets h h presented in opposite directions, as shown in Fig. 2.
The cross bars H are adjustable in the sockets g g, to give any required degree of
spread to the legs II, and this adjustment is secured by set screws ff, which are
screwed into said sockets against the bars H H. The legs II are also adjustable
lengthwise in the sockets of the cross bars, to permit the cross heads, together
with the pivotal frame D E, the carriage C, and drilling engine, to be set at various
heights from the surface on which the machine is supported, and this latter adjust-
ment is secured by set screws ii screwing into the sockets h h against the legs.
The pivotal frame D E, and cross heads G G of the standards, are connected
together by a screw I, which is parallel with the bars D D, and which passes
through the cross heads G G centrally of the pivots e thereof. The said screw is
secured firmly in place in the cross heads by screw threads and nuts on those
portions of it which protrude beyond the cross heads, the said nuts serving also
to secure the pivotal frame in any position in which it may be adjusted pivotally in
the cross heads. The thread proper of the screw, which runs the whole length of
the interior of the pivotal frame, has fitted to it a nut n, which is free to rotate in
bearings in the cheeks c¹ c¹ of the carriage, but is so confined between the said
cheeks, that when rotary motion is given to it, it will carry the carriage C and the
drilling engine with it along the screw. The rotary motion above described may
be given to the nut n in any convenient manner, as, for instance, in the example
shown, by a rotary steam or air engine M, on the shaft m of which is a pinion m³,
which transmits motion to a spur gear on the nut ", through an intermediate
gear o and pinion o¹, which are both fast on an axle which turns freely in
bearings in the cheeks of the carriage C. The shaft m is also shown provided with
a hand crank m², by which it may be turned to produce rotation of the nut and
movement of the carriage C, when desirable. The engine M should be furnished
with a reversing gear.
9.
The drilling engine A is movable in the drill back B on the carriage, in the usual
manner, for feeding the drill or channelling tool by means of a screw p. The
provision for operating this feed screw consists of a shaft a working in bearings in
à bracket B' secured to the drill back, the said shaft having, at one end, a hand
crank r, and at the other end a bevel gear g', gearing with a bevel gear r¹ on the
outer end of the said screw p.
The legs II of the standard have weights J J applied to them below the cross
bars H H, to give the machine steadiness, and counteract the lifting effect of the
reaction produced on the machine by the percussion of the drill or tool, when the
latter is working in the upright position shown in Figs. 1 and 2. But for operating
the drilling engine in the horizontal position shown in Fig. 3, when it is desirable
to bring the tool to a very low position, these weights have to be removed to allow
the sockets h h of the cross bars H H to coine as near as desirable to the bottoms
of the legs. The legs I I have also applied to them castor wheels K K, which are
brought down below their pointed lower ends, when it is desirable to move the
machine from place to place. For the sake of convenience, the castor wheels and
weights are attached to sockets jj, which are fitted to the legs, and secured thereto,
at any desired height, by means of set screws j', screwing into said sockets
against the legs, the axles of the castor wheels being fitted to arms ³ ³ on the said
sockets.
The weights are represented as having secured to them stems kk, which enter
sockets cast with the sockets, and which are secured therein by set
screws.
The group of drills s employed for channelling, are not attached directly to the

page_text: chuck t, which is formed, as usual, on the piston rod A' of the drilling engine, but
are secured in a stock NO (see Figs. 6 and 7), which is secured to the said chuck
by a dowel pin u. The drill stock N O consists of a cross head N, which is fitted
to slide in the ways of the drill back B, and a clamping plate O, which is bolted
to the said cross head by screws vv, and made to clamp the drills within a cavity in
the face of the stock. The dowel pin u is secured in the chuck t by a clamping
plate t and bolts a¹, in the same way in which the head of an ordinary single drill is
secured in a chuck, and it consists of a piece of steel or iron of smaller cross section
than the piston rod, and which, being weaker than the said rod, will, in the operation
of the machine, give way or break before the piston rod, and thereby prevent
injury to the latter. The said dowel pin enters a socket provided for it in the cross
head N, and is so secured in the said socket, as, for instance by a transverse pin w,
that it may be easily removed, when injured, and replaced by a new one.
taking away the dowel pin and the drill stock N O, an ordinary single drill for
drilling round holes may be placed in the chuck. It may be here stated that the
ways of the drill back are prolonged in a forward or downward direction beyond the
limit of movement of the chuck, to provide for the guidance of the drill stock N O.
The operation of the machine is as follows:-
:-
On
To enable the machine to be easily moved to the place where it is to be operated,
the standards are first raised sufficiently from the ground to allow the castor
wheels K to be brought below the lower extremities of the legs I, and there secured.
The machine may then be run to the place where it is desired to use it, and when it
arrives there, the nuts are slackened, to permit the turning of the frame D E on
its pivots. An ordinary round drill is then inserted in the chuck, and according as
the machine is to be used for drilling an upright channel or a horizontal one, the
pivotal frame D E is brought to a suitable height by adjusting the cross heads G
to a proper height on the standards, and is set in either the upright position shown
in Fig. 1, or the horizontal position shown in Fig. 3, or in any intermediate position,
the weights and the castors having been raised up in case of the machine being
used in the upright position, or removed altogether in case of its being used in the
horizontal position. The position of the frame is then secured by screwing up the
nuts 1. The carriage C and the drilling engine are next moved to one end of
the pivotal frame, by turning the nut on the screw L, and the drilling engine is
set in operation to drill a round hole of a depth equal to the depth required for
the channel. The carriage and the drilling engine are next moved in a similar
manner to the other end of the frame, and another similar hole is drilled. The
drill is then removed from the chuck, and the drill stock N O, with the gang or
group of channelling drills s, is inserted into the chuck, with the dowel pin w in the
place previously occupied by the round drill, and therein clamped. The mechanism
employed on the drilling engine is then thrown out of action, and the said engine is
again set in operation, and at the same time rotary motion is given to the nut n by
the rotary engine M and intermediate gearing. The carriage C and the drilling
engine are then caused to travel along the pivotal frame D E, and while thus
travelling, the reciprocating motion of the channelling drills is caused to cut a
channel from one of the before mentioned holes to the other. When the carriage C
has run the full length of the pivotal frame, the drilling engine is moved in the
ways of the drill back, by turning the screw, p, far enough to give the necessary
feed to the drills to produce another cut for deepening the channel, and the
engine M is reversed to produce the return movement of the carriage C and the
drilling engine. This operation of running the carriage C and the drilling engine
back and forth along the pivotal frame, and of feeding the drill, is repeated until
the channel is cut to the desired depth.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me
from abroad, I declare that what I claim is
☑-
1. The combination with a drilling engine and its carriage, of a pivotal frame on

page_text: -
which the said carriage runs, standards on which said frame is pivotted, a screw
arranged in said pivotal frame lengthwise thereof, and a nut fitted to said carriage
and said screw, for producing the movement of said carriage along said frame,
substantially as herein set forth.
2. The combination with the drilling engine and its carriage, and a pivotal frame
cn which the said carriage runs, of the standards consisting of legs I, cross heads G,
and cross bars H, the said cross bars being pivotted in the said cross heads, the said
legs being adjustable in the cross bars, and the said frame being pivotted in the
cross heads, substantially as herein set forth.
3. The combination with the pivotal frame D E, or the cross heads G G, having
pivots e entering pivot bearings in the ends of said frame, and the screw L passing
through the said ends and through said cross heads and their pivots, substantially
as herein set forth.
4. The combination with the drilling engine and the drill back, having the
ways prolonged as herein described, of a drill stock fitted to said prolongation of
the ways, and a dowel pin by which said stock is connected with the chuck on
the piston-rod of the engine, substantially as and for the purpose herein described.
5. The combination with the piston rod of the engine, and a chuck on said rod,
of a drill stock and a dowel pin weaker than the piston rod connecting the said
stock with the chuck, substantially as and for the purpose herein set forth.
Dated this 30th day of October 1801
NEWTON & SON,
Agents for the Applicant.