Improvements in and connected with Boring-apparatus for Deep-borings.
Year: 1896

page_text: Date of Application, 8th Aug., 1896-Accepted, 12th Sept., 1896
COMPLETE SPECIFICATION.
Improvements in and connected with Boring-apparatus for
Deep-borings.
I, ANTON RAKY, of Dürrenbach, in Alsace, German Empire, Engineer, do
hereby declare the nature of this my 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 refers in general to boring-apparatus for deep-borings, and in
particular to the means for lowering the rigid boring rod or rods according to
the progress of the boring. Said means consisted up to now either in a screw-
threaded spindle or in a chain intercalated between the beam and said boring rod
or rods. The spindle or the chain could have but a limited length (about one
meter); if, therefore, the boring-rod or rods had been lowered for said length,
the motor or engine driving the apparatus had to be stopped, or the latter had to
be uncoupled from the motor or engine, so as to allow of the insertion of a short
piece of rod between the boring-rod or rods and said spindle or chain, and of again
raising the latter according to the length of said piece of rod.
The purpose of my invention is to do away with the loss of time and money
caused by the repeated stopping of work, and I attain that object by enabling the
apparatus to work uninterruptedly, that is to say, to work at least as long as is
necessary for deepening the bore-hole for the length of a boring-rod proper (about
5 meter).
In carrying my invention into practice, I make use of two clamps that are
arranged upon the boring-rod one over the other; the lower of said clamps is
carried directly or indirectly by the beam, and the upper clamp is carried directly
or indirectly by the lower one." The upper clamp is displaceably along the boring-
rod, and the lower clamp allows of the boring-rod being displaced along or within.
it. Each clamp may be coupled with, or uncoupled from, the boring-rod, and said
coupling and uncoupling is alternately or reciprocally effected in such a manner
that an intermittent lowering of the boring-rod results.
Prior to each lowering of the boring-rod the upper clamp is lifted off the lower.
one, and may be lifted either by hand or by special mechanisms, for instance,, such
as will be described in the further course of the present specification. Irrespective,
however, of the special construction of the lifting means, or of the arrangement of.
their parts respectively, the co-operation of the two clamps with each other as well
as with the boring-rods is as follows:
If all parts of the apparatus are in their normal state, or if the apparatus is at.
work, the lower clamp is firmly connected with the rods, so that the latter are
carried by said lower clamp; the latter in its turn is supported by the beam, that,
transmits the motion of the motor or engine to said rods, and transforms the rotary
motion of the motor into a reciprocating one. During that time also the upper
clamp may be connected with the rods, but I prefer to let it simply be supported
by the lower clamp without being fixed to the respective rod. If, however, the.
rod or rods is or are to be lowered the upper clamp is lifted off the lower one, and
is then firmly connected with the respective rod, or fixed to the same respectively..
Thereafter the lower clamp is disconnected from the rod. The latter is now held
not any more by the lower clamp but by the upper one. The rod or rods may
thus be lowered for a length corresponding to the distances between the two
clamps, and I prefer to let said lowering be effected by the same means as used.

page_text: for lifting the upper clamp off the lower one.
After the rods have been lowered,
the respective upper rod is again connected with the lower clamp, and the upper
clamp may then be disconnected from said rod, and lifted again off the lower one,
and remain in its higher place until it is again coupled to the rod for lowering this
latter.
Referring to Fig. 1 of the accompanying drawings A is the beam which is
elastically supported by springs, and is oscillated from any suitable motor or
engine. The beam is furnished at one end with a plate a, Figs. 1, 2 & 3, and is
provided with bearings 6 b, holding a ring c. The latter supports the two clamps
afore mentioned. In the form of construction of said clamps as shown in Figs. 4,
5 and 6, the lower clamp consists of the two cheeks C C¹, Fig. 6, and the upper
clamp of the two cheeks B B', Fig. 5. The two cheeks of either clamp may be
moved against and from each other by means of screw-threaded spindles d that are
provided with a right hand thread as well as with a left hand one. Each of said
spindles is provided with a crank e, and the two cranks belonging to one clamp are
connected by a bar f, so as to allow of the simultaneous operation of both said
cranks. One of the latter is furnished with a handle e¹.
If
To lift the upper clamp off the lower one, I make use of excentric disks g
situated between the two cheeks of one of the clamps, and arranged loosely upon
the spindles of the same. Each of said disks is furnished with a handle g¹.
the parts g g are in the position shown in Fig. 4 the upper clamp is in its highest
position. If, now, said upper clamp is connected with the rod D, and if,
thereafter, the connection of the lower clamp with said rod is interrupted, the
upper clamp (and with it the rod D or the boring-rods respectively) may now be
caused to get down upon the lower clamp by turning the excentric disks g for 180°.
When this has been done, the lower clamp is again fixed to the rod D, and the
upper clamp is again lifted by turning the excentric disks in a reverse way, so that
all the parts in question receive again the position shown in Fig. 4.
Another form of construction is shown in Figs. 7, 8 & 9. Lifting the upper
clamp is in this form of construction effected by means of springs, and I prefer to
employ spiral-springs that are arranged upon pins i. The pins i are held, and kept
in proper position by the cheeks of the upper clamp, but they sit loosely within
said cheeks, and are supported by the cheeks of the lower clamp. The cheeks of
the upper clamp may therefore be moved along said pins i, and they can be moved
either down upon the cheeks of the lower clamp, or up against the collars of the
said pins i. There are two pins i held by each cheek of the upper clamp and the
two pins of each cheek are connected by a traverse k that may be displaced along
the pins. Said traverses are supported by the springs h, and each of the same
holds a bolt which holds in its turn a cheek of the upper clamp. It is, therefore,
to be seen, that the upper clamp when in its upper position, is supported or held by
the springs h, and that these latter will be compressed or strained as soon as the
upper clamp is caused to get down upon the lower one. This, however, occurs
when the rod D is connected with the upper clamp and disconnected from the lower.
one, as will be clear without a further explanation. Thereafter, the lower clamp is
again fixed to the rod D, and the upper clamp is uncoupled from the same.
upper clamp is then automatically lifted by the springs h, and all the parts in
question are again in the position shown in Fig. 8.
T'he.
In the modified construction shown in Fig. 10, the centre portion of the cheek C
of the lower clamp forms a separate piece C2 that may be removed from, or
inserted into, said cheek, or may be exchanged against another similar piece of a
greater or smaller size, or with a greater or smaller opening respectively. Of
course, each of the four cheeks of the device is furnished with such a removable or
exchangeable piece C 2, and by making use of the same I am enabled to employ:
one and the same pair of cheeks, or one and the same clamp or lowering device.
respectively, for rods of different diameters.
I prefer to let the central opening or bore of the ring e correspond with the
largest possible diameter of the central space of the clamps, and I prefer further to

page_text: let said space and said bore be as large as to allow of the passing through of the
connecting sockets D¹ of the rods. To obtain a constantly correct position of
the lower clamp upon the ring c, I prefer to let each cheek of said clamp have a
semi-circular projection C 3 extending downwards, and being triangular in section.
Said projections take into a correspondingly shaped cavity of the ring c, as.
distinctly shown in Fig. 10.
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 what I
claim is :-
1. In a boring-apparatus with an oscillating beam, and with a rigid boring-rod
or rods suspended from said beam, a device for lowering and adjusting said rod or
rods according to the progress of the boring, consisting of two clamps arranged
upon the boring-rod one over the other; the upper of said clamps being supported
by the lower one, and being displaceable along said rod; the lower clamp being
supported by the beam, and allowing of the rod being displaced within it; each of
said clamps having means for connecting it with, and disconnecting it from, the
said rod, for the purpose as described.
2. In a device of the kind characterised by Claim 1, the combination with the
two clamps, of a rotatable excentric cam or disk, or cams or disks, adapted to lift.
the upper clamp off the lower one; and means for operating said excentric part or
parts, for the purpose as described.
3. In a device of the kind characterised by Claims 1 & 2, the combination with
the two cheeks of each clamp, of screw-threaded spindles connecting said cheeks,
and adapted to move the same against and from each other; the spindles of one of
the clamps holding the rotatable excentric cams or disks, for the purpose as.
described.
4. In a device of the kind characterised by Claim 1, the combination with the
two clamps, of springs adapted to lift the upper clamp off the lower one; and
means for straining and relieving said springs, for the purpose as described.
5. In a device of the kind characterised by Claims 1 & 4, the combination with
pins supported by the lower clamp, of traverses arranged loosely upon said pins,
and being supported by the springs; said traverses holding bolts having the lower
clamp attached to it, for the purpose as described.
Dated this 8th day of August 1896.
J. P. BAYLY,
18 Fulham Place, Paddington, W., Agent for the Applicant.