Improvements in Machinery for Boring Holes in Stone, Coal, and the like.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Machinery for Boring Holes in Stone, Coal,
and the like.
I, WILLIAM LEE ROWE of 36 Colliery Row,- Fence Houses in the County of
Durham, Engineer, do hereby declare the nature of this invention to, be as follows:-
This invention relates to improvements in machinery for boring holes in stone coal
and the like and is designed to effect the boring or sinking, of holes in-the-ground for
prospective purposes or to bore short or other horizontal or angled-holes in ordinary
mining work.
.. To effect this purpose I construct a frame wherein. I mount a driving axle to be
worked manually or by-power. On this axle or in connection therewith I-mount a
suitable striking lever adapted to actuate a crank-shaped or curved bar one of whose
ends is centred on.the.frame the other being attached to a rope or chain leading over
a pulley, suitably, mounted for example on a jib also mounted on the frame. The
chain or rope thence leads to the boring. tools.
By revolving the axle aforesaid the lover arrangement gives a "lift " and " let go "
motion to the boring tools thus effecting the percussive action required and as the
hole deepens the attachment: hetween.chain or rope and lover aforesaid can be
similarly adjusted.
The necessary. rotary motion of the boring tools is given by a ratchet-brace device
on the chain between the boring rods and the pulley or its equivalent to which
ratchet device a chain- or rope is attached and connected with the chain or-rope
leading from the machine to the pulley or jib-head so that at each stroke of the lift
and let go device the ratchet is caused to effect a certain amount of-revolution in the
drilling: gear a weighted lever or chain and weight or like device being employed to
keeprthe ratchet in a normal position but revoluble as above foreshadowed.
In connection with the..driving axle I further arrange a wheel train adapted to
actuate. asbarrel or drum which can be used in connection with the-jib-pulley as
required and I-utilise this barrel axis as the centre from which-to drive any suitable
or. required, rotary drilling or boring, apparatus -applicable for-ordinary mining
purposes.
By the.trainwheel system: I am enabled to effect a constant motion of the tool to
which may be imparted as described the required power and by a nut at one end and
feed: screw device..co-operating with the idrilling mechanism the- required feed is
affected.
The various parts of the.machine are detachable adjustable and interchangeable in
the frame according to the purposes required-in-working.
Dated this 20th
1904
A. ORAWHALL CHAPMAN,
3 St. Nicholas Buildings, Newcastle-on-Tyne, Patent Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Machinery for Boring Holes in Stone, Coal,
and the like.
I, WILLIAM LEE ROWE, of 36 Colliery Row, Fence Houses 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 relates to machinery for boring holes in stone, coal and the like and
has for its object to arrange, in one machine, apparatus, to effect the boring or
sinking of holes in the ground for prospective purposes, or to bore short or other
horizontal or angled holes in ordinary mining work in a more convenient and
expeditious manner than heretofore.
According to my improvements, I mount in a frame a driving axle on or in connection
with which is a striking lever adapted to actuate a hinged crank-shaped or curved bar
in such manner that, on its revolution, the boring tool, connected to this cranked bar
by a chain passing over pulleys, is given the required percussive action, while at the
same time it is revolved by a ratchet brace device operated from the said chain.
Further, I provide a drum or barrel which can be revolved when necessary by
gearing to raise or lower the boring rods and tool and which is also arranged to form
a bearing for a rotary drilling apparatus applicable for ordinary work, the required
feed being obtained by the co-operation of a nut and screw...
I will now explain my invention in detail with reference to the annexed drawings
showing in
Figure 1 a side elevation, in Figure 2 a plan, and in Figure 3 an end elevation
partly in section, of a machine constructed in accordance therewith.
Figures 4 and 5 are enlarged transverse sections hereafter referred to.
A is the frame for supporting the several parts of the machine and B is the driving
axle operated by suitable power; it is illustrated as driven manually by the
wheel b.
The striking lever C, consists of two or more arms c fitted with anti-friction
roilers c', and is fixed on the axle c', and below it is the cranked bar D pivoted at d
to a bracket on the frame A, its other end being adjustably connected to the lifting
and lowering chain E passing over the pulleys e el to the boring rods and tool at F.
The chain E may be readily fastened and unfastened to and from the bar D by means
of a pin carried by the forked end of the latter and adapted to be passed through a
link of the chain as shown best in Figure 2. d' is a counterbalance to the lever D.
G is the ratchet brace device of ordinary construction adjustably attached to or
about the upper boring rod; to automatically secure intermittent rotary motion of
the boring rods and tool when required its lever 9 may be united by a chain or
rope g' to the chain E at a convenient point and, to secure proper working, by
another connection to a balance weight hung from a pulley suitably supported, for
example by the wall of stone or coal, or equivalent means may be substituted.
On the rotation of the wheel b, the striking bar C is revolved by the gear wheels 1
and 2 when each of its arms c in turn engages with the part d² of the bar D depressing
same and lifting, through the connecting chain E, the boring rods and tool which, on
every disengagement of these parts and d², are released again and simultaneously
with each stroke of this "lift" and "let go" mechanism the tool is revolved by the
ratchet device G, turned in one direction by its attachment to chain E or equivalent
connection, and in the other by the weight g; thus the necessary percussive and
rotary actions of the tool are accomplished. As the hole deepens the attachment
between the bar D and chain E is adjusted to the requisite degree by letting out one
or more links.

page_text: The pulley e¹ is shown supported from a temporary structure H, this arrangement
being most convenient for general work, but such may, if desired, be built in the
form of a jib fixed to the frame A as indicated in dotted lines in Figure 2 at h.
J is a hollow drum driven by the wheel train 3, 4, 5, 6, and 7 and on unfastening
the chain from the bar D the boring rods and tool can be raised or lowered as desired.
This drum I also employ as a bearing for a rotary apparatus for drilling short holes
by arranging in its interior the hollow tool holder K which is revolved therewith and
guided in its longitudinal travel on the feed screw M by the feather j at each end of
the former fitting into the slot k extending its whole length as clearly shown in
Figure 4. The tube K, which acts as a cover to the feed screw, is formed with
tongues to fit into corresponding grooves cut in the nut N and thus become an
integral part thereof as shown in Figure 5. The extremity of the screw M is squared
and fits into the piece P supported in the bracket R bolted to the frame A, while the
projections p of the said piece engage in reverse slots r in the bracket R and prevent
rotation of the screw M, but when required, the piece P may be easily turned to
admit of the withdrawal of the screw.
By the train wheel system I am enabled to effect a constant motion of the tool to
which may be imparted as described the required power and by the nut and screw
device co-operating with the drilling mechanism the required feed is effected, since
by the combined action of the various parts described, when the drum J is revolved
from the wheel b, the tube K with the drill L and nut N are revolved and moved
forward on the screw M.
To drill short angled holes the machine is placed at any suitable inclination to the
face of the material or it may be turned over on its side to drill vertically.
Some of the toothed wheels, for example 2 and 4 and 5 are adapted to be slid
out of gear when one or other of the tools at F and L is not in use, while by
the provision of duplicate bearings on the frame A, as shown to the left at x y z
in Figure 1, the drum J and adjacent parts may be fitted at either end of the
machine as circumstances render convenient and the various parts of the whole
machine are so arranged as to be readily detached and adjusted when necessary
according to the purposes required in working.
Having now particularly described and ascertained the nature of my said inven-
tion and in what mauner the same is to be performed I declare that what I
claim is :-
1. Machinery for boring holes in stone, coal and the like constructed or adapted to
operate substantially in the manner herein described and illustrated in the drawings.
2. For boring machinery for stone, coal and the like the combination and
arrangement of parts for effecting the required percussive and rotary actions of the
boring rods and tool comprising a rotary striking lever C, cranked bar D and
connection to boring rods and a ratchet brace device and connections all substantially
as herein described and shown in the accompanying drawings.
3. In boring machinery such as above referred to, the arrangement and use, in
combination with the apparatus above claimed for effecting the required percussion
and rotation of the tool for boring long vertical holes, of a raising and lowering drum
actuated by a wheel train and adapted to form a support for a drilling apparatus for
boring short holes, fed and adapted to operate substantially in the manner described
and illustrated.