Year: 1889

page_text: We, EMANUEL PRZIBILLA, Engineer, and FRIEDRICH WILHELM KLEVER, Gentleman,
both of the City of Cologne on Rhine, in the Kingdom of Prussia, German Empire,
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 an apparatus for earth boring purposes and the improvements
consist in various novel mechanisms and contrivances the object and effect of which
are to do away with some of the inconvenience and delay caused by accidents that
sometimes occur in deep earth boring operations and further to make the result of
the work less depondant upon the skill and practice of the workmen and at the
same time more efficient and quicker than is generally the case with other apparatus.
These objects are obtained by the mechanisms illustrated in the accompanying
drawings, Figs. 1 to 5, as far as the boring apparatus proper is concerned; and in
Figs. 1, 2 & 3ª some mechanisms of the actuating gear above ground are
illustrated.
The head piece a Figs. 1 & 4, is connected with the hollow boring tube generally
by means of a screw, and forms with piston a¹, one body. The piston a¹, can slide
and down in the cylinder b, between which and the head piece is fixed a spring d,
Figs. 1, 2 & 4.
A peg c is wedged through the lower part of piston a' with which it consequently
moves up and down, running in two slits e Figs. 1 & 4 which are made in the
cylinder b, its outer ends likewise running in slits made in a tube i Figs. 1 & 2,
which surrounds the parts last described approximately to the height shewn in Fig. 1.
The slitse are curved and shaped as shewn in Fig. 1 the parts of the peg that move
in the slits being equally curved and shaped in such a manner that they readily,
when forced downwards, slip into the siding e. The slits 1 are curved and shaped
as shewn in Fig. 3 the parts of the peg moving in these slits being conveniently
curved and shaped in accordance with the shape of the slits.
In the lower, solid part of the shell 6 another peg 9 is fixed at right angles with

page_text: peg e, just described, and moves perpendicularly in two other slits n of the tube i,
which tube has other slits at its bottom end to afford moving space for the boring
tool when it happens to be wider than the tube, such as m Fig. 2.
The rod or bar is screwed into the bottom portion of the cylinder b, boing
sometimes additionally well secured by means of a lock bolt. To the conical socket f
of the said rod is fastened the boring tool proper m, being screwed in and further
secured by means of the conical box / holding the socket and the ring m', which is
part of the tool, firmly together.
The working of the above described mechanisms is as follows :-
The parts being in the position to each other which is shown in Fig. 1 that is to
say the peg c nearly touching the upper end of slit e the downward movement of the
boring rod forces the headpiece a, downwards the spring d becoming compressed
Fig. 4, and the piston a' passing downwards in the cylinder & until the peg e reaches
the rounded portion of the curved slits e when it clicks into the sidings e', the spring d
being thereby held at its greatest tension.
The boring chisel has meanwhile been at rest on the bottom, but the boring rod,
on account of the curved shape of slits and the fact of the peg, e, being guided
thereby, and in its turn guiding the head piece a and all that is connected with it,
has made a distinct, though small, turn towards the right.
From this point the regular action of the apparatus commences.
By means of a winch handle or other gear in ordinary use for such purposes the
boring rod is now raised, and with that not only the head a, but also the cylinder b
with the boring tool; on account of the peg c having clicked into the siding e¹, as
above described.
The tube however, remains resting against the bottom of the bore hole, until the
ends of the pege which move in the slits of the said tube, reach the curved
parts of such slits, when the tube is momentarily raised slightly, at the same time
receiving a small movement towards the right. The peg y moving as it does in
slits in the said tube, it follows that the cylinder as well as the boring tool, takes
part in the motion.
As a result of the short turning motion of the cylinder the peg e slips out of its
position in the siding e', thereby releasing the cylinder b which, with the boring
tool, drops to the bottom with an increase of force caused by the spring d. Thus the
boring tool and the spring are uncoupled every time the mechanism lifts, the boring
tool receiving at the same time a short turn, the length of which depends upon the
size of the curved slits. Likewise the upper portion of the mechanism, i.e. head
piece a, etc. receives a short turn every time the mechanism shoots downwards.
The entire apparatus is surrounded by a tube k, screwed around the head pieco
which tube mainly serves the several purposes of protecting the mechanical parts of
a
the apparatus from the entry of grit, dirt etc. of guiding the perpendicular and straight
working of the apparatus and of carrying away the swilling water.
The swilling wator enters. the apparatus by the hollow boring rod through the
passages and outlets a made in the head piece a Figs. 1 & 4 reaching the bottom in
due course whence it finds its way to the surface again outside the tube k, carrying
with it the sand and grit and other matter which the boring tool has loosened.
The tube is lengthened a distance above the apparatus ' Fig. 4, by which
arrangement the following advantages are gained. The water as long as it passes
upwards in the narrow space lett between the tube and the bore hole is naturally
under more pressure than when it reaches to where the tube censes, for it has then
got to fill out the entire bore hole. The grit and chips which the water carries with
it, especially the larger and heavier pieces, are therefore apt to deposit, when the
water, by reaching the wider parts, has less raising power. By the above means
such particles now subside into the tube and thus cause no inconvenience; depositing
themselves exactly in the order in which they are removed from the bottom, by the
borer they afterwards serve to show the exact nature of the ground penetrated.
The tube k serves equally to catch any article that accidently might drop into the
bore hole and which but for that might disturb the boring operation.

page_text: The improved over-ground appliances invented for the purpose of efficiently
actuating the boring apparatus above explained are as follows, and are illustrated in the
drawings Figs. 1, 2 & 3*.
The crank or beam is moved up and down in the ordinary way, and underneath.
or in other convenient position in said crank are placed bearings a which serve for
carrying spindles d which support the screw nut & in consequence whereof the nut.
remains perpendicular notwithstanding the movements of the crank.
Through the said nut & passes a long threaded screw a, passing freely through the
crank which is cut out so as to allow of its free movement. The screw at its lower
end, ends in a swivel which holds the head w of the neck which in turn screws into.
the boring rod proper. This arrangement allows of the boring rod being turned
without at the same time turning the set screw, and also of the screw being turned
without necessarily turning the boring rod.
Whenever the boring rod is resting on the bottom the head n will be lifted,.
sufficiently to allow of the turn taking place occasioned by the arrangement of the
boring apparatus. without affecting the screw.
As soon however as the boring chisel works deeper, not finding a bottom, then the
boring rod and mechanisms hang with their entire weight in the swivel forming the
bottom end of screw a, so that the turning motion would not take place at w but
the screw would work downwards as long as the strain lasted.
For the more
certain working of the parts in question the screw may be kept well oiled while the
swivel and head w may be roughened so as to prevent any sliding faking place. In
this manner the turning and lowering of the set screw follows up exactly the
penetrating of the chisel.
Although the drawings and the above description bave shewn the turns of the
various mechanisms as taking place towards the right, it must be understood that by
reversing the various parts which effect the turning motions, the turns can then be
made towards the left."
Having now particularly described and ascertained the nature of my said Invention,
and in what manner the same is to be performed, I declare that what I claim is :-
For earth boring apparatus.
949
C. R. BONNE & Co.,
Applicants' Agents.