Improvements in Drilling and Boring Apparatus.
Year: 1894

page_text: Date of Application, 23rd May, 1894
Complete Specification Left, 18th Oct., 1894-Accepted, 24th Nov., 1894
PROVISIONAL SPECIFICATION.
Improvements in Drilling and Boring Apparatus.
I, ALBERT TAYLOR, of Daisy Croft, Hipperholme, in the County of York,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to a simple and inexpensive arrangement of self contained
apparatus for boring holes horizontally or thereabout in soft classes of rock, shale
or the like, the boring being effected by a rotating twist drill driven and fed
automatically along a track by suitable means such as a crank handle rotated by
manual power.
The apparatus comprises a framework or truck mounted on wheels that may be
flanged, running on rails laid (it may be temporarily) at right angles to the face of
the material to be pierced. The drill spindle is supported in bearings carried by
the truck and is provided at one end with a socket to receive the end of the drill
which is rotated through a train of toothed gearing by a driving shaft, also carried
in fixings on the truck.
The shaft is placed at a convenient height above the ground level and, beyond
the end of the truck, has a fly wheel with handle, whereby it can be rotated by
hand. Obviously however by a slight modification the spindle may be operated
by power. For automatically feeding the drill forward one of the axles of the
truck is driven by a worm on the drill shaft, or an extension thereof, or a shaft
connected or that may be connected thereto, that gears into a worm wheel on the
said truck axle. This worm may be loose to slide end wise on the shaft so as to be
put in and out of gear with the worm wheel, the arrangement being such that when
the worm and worm wheel are out of gear the truck may be run freely along the
rails but when they are in gear the drill shaft cannot be rotated without causing
the wheel axle to be rotated thus moving the truck, and consequently also the drill,
backward or forward as the case may be.
The arrangement is susceptible of considerable modification in practice-for
instance more than one of the truck axles may be provided with worm wheels
operated by corresponding worms on the drill shaft, and several drills may be
arranged on one truck. Furthermore the drill might be actuated from the main or
first motion shaft, whilst the drill shaft may be supported in or by a sliding or
hinged frame in such a manner that the position of the drill may be varied to suit
circumstances.
If desired a quicker geared worm and worm wheel may be connected to one of
the truck axles, so that by turning the drill in the backward direction it
may be
withdrawn at a quicker rate than that at which it is fed forward. Such worm also
slides on the shaft and may be fixed in gear by any well known means such as
a pin.
Dated this 23rd day of May 1894

page_text: Improvements in Drilling and Boring Apparatus.
I, ALBERT TAYLOR, of Daisy Croft, Hipperholme, in the County of York,
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 a simple and inexpensive arrangement of self contained
apparatus for boring holes horizontally or thereabout in soft classes of rock, shale,
or the like, the boring being effected by a rotating twist drill driven and fed
automatically along a track by suitable means e.g. a crank handle rotated by manual
power.
"
The apparatus comprises a framework or truck mounted on wheels that may be
flanged, running on rails laid (it may be temporarily) at right angles to the face of
the material to be pierced. The drill spindle is supported in bearings carried by
the truck and is provided at one end with a socket to receive the end of the drill,
which is rotated through a train of toothed gearing by a driving shaft, also carried
in bearings on the truck.
The shaft is placed at a convenient height above the ground level and, beyond
the end of the truck, has a fly wheel with handle, whereby it can be rotated by
hand. Obviously, however, by a slight modification the spindle can be operated
by power. For automatically feeding the drill forward, one of the axles of the
truck is driven by a worm on the drill shaft, or an extension thereof, or on a shaft
connected or that may be connected thereto, the said worm gearing into a worm
wheel on the said truck axle. The worm wheel may be free to slide end wise on the
shaft so as to be put in and out of gear with the worm or a sliding clutch may be
made to engage with the worm wheel the arrangement being such that when the
worm and worm wheel are out of gear the truck may be run freely along the rails,
but when they are in gear the drill shaft cannot be rotated without causing the
wheel axle to be rotated thus moving the truck, and consequently also the drill,
backward or forward as the case may be.
The arrangement is susceptible of considerable modification in practice. For
instance, more than one of the truck axles may be provided with a worm wheel
operated by a corresponding worm on the drill shaft, and several drills may be
arranged on one truck.
If desired a quicker geared worm and worm wheel may be connected to one of
the truck axles, so that by turning the drill in the backward direction it may be
withdrawn at a quicker rate than that at which it is fed forward. Such worm
wheel will also slide on the shaft and may be fixed in gear by any well known
means, such as a pin or clutch.
In the accompanying drawings:-
Fig. 1 is a side elevation, partly in section
Fig. 2 a plan and
Fig. 3 an end elevation showing a machine or apparatus constructed according to
this invention mounted on a suitable temporary track.
The framework or truck comprises two channel iron girders A. mounted on
axles B to which the travelling wheels C. are secured. These wheels C. may be
flanged or they may be without flanges as shown, and be arranged to travel on
angle iron rails D. The rails on which the wheels run are permanently secured
together at the proper gauge by suitable means such as by cross or lattice bars E.
as shown, so that the short length of temporary rails used may be laid in any
convenient position to suit the hole to be bored. They are intended to form an
even track along which the machine may be moved and which will afford sufficient
resistance or grip to the wheels C. to enable the drill to be forced into the material

page_text: to be operated upon. The girders A. forming the sides of the framework of the
truck are securely held in position by end standards F. to which they are bolted.
These standards are provided with bearings F' for the drill spindle G, the forward
end of which is provided with a socket G having a hole corresponding in shape to
the squared end of an ordinary twist drill H (Fig. 1).
The drill spindle G is placed as near the ground as convenient, and is rotated in
one or other direction by means of a toothed wheel J. fixed on the spindle and in
gear, through an intermediate toothed wheel J', with a pinion J on the driving
shaft K, the diameters of the toothed wheels J. J' and J, being such as to raise
the shaft K so far above the ground that it may be rotated by means either of the
projecting handle K* shown in dotted lines in Fig. 1. of the fly wheel K¹, or
preferably by means of a crank formed as shown in the shaft K between the
standards F. It will be obvious however that the shaft K might be driven by
power, as by an electric motor or other suitable source of energy instead of by
hand. For automatically feeding the drill forward, the drill spindle has secured
to its worms N each in gear with a worm wheel M. that is in the example shown,
mounted to freely rotate upon one of the wheel axles B. with which it can be
directly connected by a clutch, one part of which is carried by the worm wheel,
whilst the other part L. is feathered upon the axle along which it can be slidden in
order to connect and disconnect the said worm wheel from the axle. As will be
seen, by this arrangement when the drill H. is placed in position to penetrate the
material to be operated upon, and the part clutches L. which have ratchet teeth
formed thereon, are slid into gear with the corresponding part clutches on the
worm wheels M, then upon rotating the drill spindle in a direction to effect the
drilling, the axles B. will be slowly rotated by the worm gearing and feed
the machine and drill in a forward direction. If the speed of the forward motion
thus produced in the drill be too great to suit the drill or the material, the drill
may be rotated in the opposite direction until the part clutches become disengaged
and may be then rotated in the direction for drilling until the hole is cleared out,
whereupon the clutches may be again put into gear and the drilling completed.
To give additional stability to the machine and to increase the weight carried by
the wheels C. so as to give them a better grip or adhesion on the temporary
rails D, the machine may be provided with detachable platforms P. hooked upon
the end standards F. or other convenient part of the framework of the machine
and upon which the operators can stand when working the drill from the shaft K.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
:-
1. Apparatus for drilling or boring material of the kind herein referred to
comprising a framework mounted on carrying wheels, a longitudinal drill spindle
and mechanism for rotating the spindle and also one or more of the said carrying
wheels, the arrangement being such that when the drill is rotated in a direction to
effect drilling or boring the machine can be simultaneously moved forward to force
the drill into the material to be drilled or bored, substantially as hereinbefore
described.
2. My improved drilling or boring apparatus constructed, arranged and operating
substantially as herein before described with reference to and shown in the
accompanying drawings.