Improvements in and relating to Machines for Drilling or Boring Rock or other Hard Material.
Year: 1891

page_text: Date of Application, 28th Jan., 1891
Complete Specification Left, 8th Sept., 1891-Accepted, 28th Nov., 1891
ROYEDIONAL
Improvements in and relating to Machines for Drilling or Boring
Rock or other Hard Material.
I. ANTON SCHLEPITZKA, of 17, Berggasse, Vienna, IX, in the Empire of
Austria, Contractor, do hereby declare the nature of this invention to be as
follows :-
My invention relates to machines for drilling or boring rock or other hard
material.
A machine constructed according to this invention has a rotary bore, the rod of
which is operated directly by the armature of an electromotor. The bore rod
may be either rigidly connected with the armature shaft of the electromotor in
which case the latter serves to weight the rod and descends with the same, or it
may pass through the hollow armature shaft of the electromotor so that it can slide
longitudinally therein but is carried away by friction or by means of a key and
groove in the rotary movement of the said armature, the electromotor being in this
instance rigidly connected with the frame of the machine so that a special weight
must be employed.
In one form or arrangement of the improved machine the entire mechanism is
supported by means of a tripod. To the head of this tripod are pivoted two
ordinary feet and a ladder which serves as a third foot. The rungs which unite
the two side bars of the ladder and are connected through the medium of chains
with the electromotor form bearings for the rod which is rigidly secured to the
armature shaft of the said motor.
At their upper and lower parts the side bars of the ladder are stiffened by rigid
cross bars the lower two of these bars carrying a tube for protecting the bore.
Screws are provided at the lower extremity of the two ordinary feet and the two
side bars of the ladder forming the third foot, for the purpose of enabling the
tripod to be accurately adjusted. To augment its stability the frame may be
connected by ropes with the ground, for which purpose eyes for attaching the rope
are provided at the head of the tripod.
The rod and electromotor may be raised by a windlass and a rope pulley
arranged at the head of the frame.
By means of wires or cables the current of electricity is conducted from the
generating machine to the electromotor in any suitable manner.
In another form or arrangement of the improved machine which is designed for
subaqeous drilling or boring operations the electromotor together with the bore-rod
and the accessory parts in connection therewith is arranged in a frame carried by a
slide which is adapted to be moved along a bridge extending over the water.
Through the medium of a rope and pulley the bore frame is suspended from a
crane, whose jib is fixed in conjunction with the above-mentioned bridge, to the foot
of the pillar by a bolt. The bridge is moreover connected by adjustable ropes
with the top of the pillar to which the aforesaid jib is also attached by a rope.
By arranging the bore frame so that it can move upon the bridge and enabling the
latter to be turned around the pillar of the. crane the boring can be effected at
any point situated within a circle the radius of which is equal to the length of the
bridge.
In case very strong currents prevail the bore frame may be stiffened by special
struts.
The aforesaid bore frame comprises two U irons in which ladders are guided the
side bars of which consist of flat-irons connected by bolts. At their lower end

page_text: these side bars are attached to a tube for protecting the bore, and they are
furthermore connected with each other by a rigid cross bar.
On the inner surfaces of the side bars of the ladder I arrange bars designed to
guide the bearings for the bore rod which bearings are connected with each other
by chains and provided with rollers adapted to move between the above mentioned
guide bars.
For hoisting and lowering the ladder with the object of adjusting the same for
borings at various depths below the level of the water, I provide gear wheels on
the bore frame, which wheels engage through slits in the sides of the U-irons with
bolts forming a-kind of rack.
In this instance the armature shaft of the electromotor is also rigidly connected
with the bore rods, and the said motor is arranged in a cage which can be raised
through the medium of a rope and pulley and a windlass.
כ
With the object of reducing the friction the bearings for the armature shaft may
be carried out as ball bearings.
The lubrication of the upper bearing takes place by a self-acting lubricator
through the medium of an adjustable screw held in a bridge picce and having a
longitudinal bore for conducting the lubricant to the shaft of the electromotor.
This lubricator is placed upon the nut of the aforesaid screw.
For distributing the weight of the motor and the rod upon the rim of the bearing
and relieving the ball bearing when the motor runs idle the armature shaft is
adapted to be displaced relatively to the bearings and provided below with a collar
or a disc which when the motor runs idle bears upon the said rim.
In the boring
operation the lower end of the bore bears against the rock so that the above-
mentioned cage being freely suspended by means of its rope, descends until the collar
or the disc on the shaft of the motor is liberated and this shaft is supported by the
ball bearings on the said cage. In this case the bridge-piece hereinbefore referred
to bears against the upper cross-bar of the cage which latter likewise acts as
a weight.
Instead of rigidly connecting the shaft of the electromotor with the rod the said
shaft may be made hollow for the reception of the rod and the motor fixed in the
frame. The rod is then connected with the shaft of the motor so that it will turn
with the same but can move freely in the longitudinal direction. Of course a
special weight must be employed in this case. In lieu of passing the rod directly
through the hollow shaft of the motor it may be slid into a socket fixed in the said
shaft which will enable the use of different rods with the same motor.
Dated this 28th day of Januo 1901
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Machines for Drilling or Boring
Rock or other Hard Material.
1, ANTON SCHLEPITZKA, of 17 Berggasse, Vienna IX, in the Empire of Austria,
Contractor, 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 :—
My invention relates to machines for drilling or boring rock or other hard
material.
A machine constructed according to this invention has a rotary borer the rod of
which is operated directly by the armature of an electromotor.
In the accompanying drawings
Figure 1 is a front elevation showing one mode of carrying the said invention
into practice for borings on land.

page_text: Figure 3 is an upper view of part of this arrangement.
Figure 4 is a side elevation showing another mode of carrying the said invention
into practice for boring under water.
Figure 5 is a front elevation showing the arrangement of this second mode of.
construction.
Figures 6 and 7 are details, the latter shown to an enlarged scale.
The bore-rod may be either rigidly connected with the armature shaft of the
electromotor as shown in Figures 1, 2 and 3 in which case the latter serves to
weight the rod and descends with the same or it may pass through the hollow
armature-shaft of the electromotor so that it can slide longitudinally therein but is
carried away by friction or by means of a key and groove in the rotary movement
of the said armature, the electromotor being in this instance rigidly connected with
the frame of the machine, so that a special weight must be employed.
In one form or arrangement of the improved machine the entire mechanism is
supported by means of a tripod. To the head A. of this tripod are pivoted two
ordinary feet C C and a ladder B B which serves as a third foot. The rungs a a a
which unite the two side bars of the ladder are connected through the medium of.
chains with the electromotor M. and form bearings for the rod d which is rigidly
secured to the armature shaft of the said motor.
At their upper and lower parts the side bars of the ladder are stiffened by rigid
cross bars 31 32 33, the lower two of these bars carrying a tube b for protecting
the bore.
Screws are provided at the lower extremity of the two ordinary feet CC and the
two side bars of the ladder B B forming the third foot, for the purpose of enabling.
the tripod to be accurately adjusted. To augment its stability the frame may be
connected by ropes with the ground, for which purpose eyes for attaching the
ropes are provided at the head of the tripod. The rod and electromotor may be
raised by a windlass and a rope-pulley f arranged at the head of the frame.
By means of wires or cables the current of electricity is conducted from the
generating machine to the electromotor in any suitable manner.
In another form or arrangement of the improved machine, shown in Figures 4
and 5 which is designed for subaqueous drilling or boring operations,, the
electromotor M together with the bore-rod and the accessory parts in connection
therewith is arranged in a frame D carried by a slide Z which is adapted to be
moved along a bridge K extending over the water.
Through the medium of a rope and pulley the bore frame is suspended from a
crane, whose jib E is fixed in conjunction with the above-mentioned bridge K to the
foot of the pillar F by a bolt J. The bridge is moreover connected by adjustable
ropes n with the top of the pillar in which the aforesaid jib is also attached by a
горе т. By arranging the bore frame D so that it can move upon the bridge K,
and by enabling the latter to be turned around the pillar of the crane the boring
can be effected at any point situated within a circle the radius of which is equal to
the length of the bridge.
In case very strong currents prevail the bore frame may be stiffened by special
struts p.
The aforesaid bore frame comprises two U-irons B' B' as shown in Figure 6, in
which are guided the ladders B B the side bars of which consist of flat-irons c² c³
connected by bolts c¹ c'. . At their lower end these side bars are attached to a
tube for protecting the bore, and they are furthermore connected with each other
by a rigid cross bar e.
On the inner surfaces of the side bars of the ladder I arrange bars g, g designed
to guide the bearings a, a, a for the bore rod d, which bearings as shown in
Figures 1, 2 and 3 are connected with each other by chains and provided with
rollers a adapted to move between the above-mentioned guide bars gg.
For hoisting and lowering the ladder B B with the object of adjusting the same
for borings at various depths below the level of the water, I provide gear wheels!

page_text: on the bore frame D which wheels engage through slits in the sides of the U-irons
.with the bolts c', c¹ forming a kind of rack.
In this instance the armature-shaft of the electromotor M is also rigidly
connected with the bore rods, and the said motor is arranged in a cage G which
can be raised through the medium of a rope and pulley fand a windlass H.
With the object of reducing the friction the bearings for the armature shaft may
be carried out as ball bearings.
The lubrication of the upper bearing takes place by a self-acting lubricator
through the medium of an adjustable screws held in a bridge-piece a and having a
longitudinal bore for conducting the lubricant to the shaft of the electromotor.
The lubricator is placed upon the nut of the aforesaid screw s.
For distributing the weight of the motor and the rod upon the rim of the bearing
and relieving the ball-bearings when the motor runs idle the armature shaft is
adapted to be displaced relatively to the bearings and provided below with a collar
or a disc t (Figure 7) which when the motor runs idle bears upon the said rim. In
the boring operation the lower end of the bore bears against the rock so that the
above-mentioned cage G being. freely suspended by means of its rope, descends
until the collar or the disc on the shaft of the motor is lilierated and this shaft is
supported by the ball bearings on the said cage. In this case the bridge-piece a
herein before referred to bears against the upper cross-bar of the cage G which
latter likewise acts as a weight.
Instead of rigidly connecting the shaft of the electromotor with the rod the said shaft
may be made hollow for the reception of the rod, and the motor fixed in the frame.
The rod is then connected with the shaft of the motor so that it will turn with the
same but can move freely in the longitudinal direction. Of course a special weight
must be employed in this case. In lieu of passing the rod directly through the
hollow shaft of the motor it may be slid into a socket fixed in the said shaft, which
will enable the use of different rods with the same motor.
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:
"
First. A machine for drilling or boring rock or other hard material operated by
clectricity, in which the boring-rod d is rigidly connected with the shaft of the
clectric-motor M, which motor then serves to weight the borer, or is so connected
with the hollow armature shaft of the said motor that it turns with this shaft
but can slide in the longitudinal direction of the same, in which case a special
weight is required.
Second. The arrangement of the boring machine characterized in the first claim
in a tripod formed of feet C C and ladder B B (Figures 1, 2 and 3) the
rod d being adapted to move in the bearings a a which constitute rungs of the
ladder B B and which can be displaced relatively to each other.
Third. The arrangement of the boring machine characterized in the first claim
in a frame D formed of the cage G, U-irous B₁ B' and ladders B B, which frame
is adapted to be displaced by means of slides Z and a jib E along a bridge K which
can turn with the jib around the pillar F of the crane.
Dated this 8th day of September 1891.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.