Year: 1899

page_text: Date of Application, 28th Nov., 1899
Complete Specification Left, 3rd Aug., 1900-Accepted, 13th Oct., 1900
Date of Application, 28th Nov., 1899
Complete Specification Left, 3rd Aug., 1900-Accepted, 13th Oct., 1900
I, JOSEPH VOGT, of Niederbruck, Haut-Alsace, Germany, Manufacturer, do
hereby declare the nature of this invention to be as follows:-
1..
This invention relates to improvements in boring apparatus for boring at
great depths.
One of the said improvements has for its object, on the one hand, to lessen the
inconveniences which, in the ordinary method of boring with a rocking beam,
and rigid bore rods, result from the vis inertia of the beam due to the considerable
motion thereof and, on the other hand, to obviate the inconveniences which in
the case of boring apparatus working with hauling cable and rigid boring rods,
result from the fact that when considerable depths have been reached so that the
bore rod has become very heavy, or when the boring tool becomes wedged in the
bore-hole, the pulley that works the cable cannot operate with increased trac-
tional force, as is the case with the rocking beam arrangement.
Furthermore, instead of the cable which has been combined with the beam
for transmitting the motion of the engine crank to the boring tool in order to
obviate the above named difficulties, there is employed, according to the present
invention, a rigid bore rod the advantages of which, as compared with the cable,
are well known. Other improvements relate to various improved constructions of
boring tool, as will be presently explained.
For the above purposes the improved boring apparatus is constructed as
follows:-
The bore rod is supported at its upper end upon a frame which in its turn
rests on a second frame which is suspended by two cables each passing over a
pulley which pulleys are mounted on the one end of a rocking beam, or of two
or more rocking beams. The said cables, after passing partly round the said
pulleys have their ends attached to bolts which are connected rigidly to the axis
on which the beams rock. This axis is arranged to be vertically adjusted in the
framing of the boring machine, such as by means of screw rods attached to the
bearings of the said axis, and consequently the points of attachment of the cables
are simultaneously vertically adjusted, so that the distance between the centres
of the pulleys on the beam and the points of attachment of the cables will always
remain the same, whereby the lengthening of the cables on the descent of the
bore rod is prevented.
Elastic devices are interposed both in the length of the cables, as also between
the bore rod and its supporting frame and between the point of attachment of
the connecting rod of the driving crank and the beam, so that the stroke of the
bore rod during its descent can be extended somewhat by the compression of
these elastic devices.
These elastic devices may be conical volute springs for the bore rod support
and connecting rod connection, while helical springs may be used for the elastic
connection of the two cables. --

page_text: For preventing the bore hole from deviating from the perpendicular, in the
case of very inclined strata or strata of unequal hardness, so as to avoid the use
of flat boring tools such as are usually employed which easily become wedged in
the unequal strata, I employ a boring tool of the following construction which
also has the advantage of dispensing with the use of cross shaped cutters which,
in the case of borings of large diameter are very heavy and consequently difficult
to construct and maintain in an efficient condition.
inc boring tool consists of a head piece or guide of a diameter slightly less
than that of the bore hole, and adapted to be attached to the lower end of the
bore rod, the lower end of which head-piece has a central socket formed in it for
the reception of a central cutter round which are arranged other sockets for the
reception of other cutters, thus forming a crown of comparatively small and
easily renewable cutters that .operate with a uniform percussive action on the
bottom of the bore hole. The bore rod and head being rotated during the boring
operation, the cutters will cut a perfectly cylindrical bore hole. The head and
cutters may have channels formed in them for the supply of water through the
tubular bore rod.
In order to cause the cutters to cut an enlarged bore hole so that a lining tube
can be sunk in the same as the boring proceeds, the cutter head and cutters are
arranged excentrically relatively to the bore rod and central boring tool which
in this case is made of such a length as to extend some distance below the other
cutters. By this means while the cutter head is only of such a size that it can
be passed down freely through the interior of the lining tube which has been
sunk to near the bottom of the bore hole, yet owing to its excentric form, on
causing the projecting central cutter to cut a central drift in the bottom of the
bore hole, and that causing the bore rod and cutter head to rotate, the excentric
cutters will cut a cylindrical bore hole of a slightly larger diameter than the outer
diameter of the lining tube, .which can consequently be sunk farther down as
the boring proceeds.
For enabling the boring apparatus to cut out sample cores from the boring for
shewing the nature of the strata passed through, the cutter head is formed with
a central passage, through it, of the size required for the sample core, and con-
centrically round this are arranged in a circle the separate small. cutters, which
in revolving with the head cut an annular bore hole leaving the said core in the
centre. This may be broken off and raised to the surface from time to time by
any known means.
Dated this 28th day of November 1900.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Boring Apparatus for Boring at Great Depths.
I, JOSEPH VOGT, of Niederbruck, Haut-Alsace, Germany, Manufacturer, 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 improvements in boring apparatus for boring at
great depths.
One of the said improvements has for its object, on the one hand, to lessen the
inconveniences which, in the ordinary method of boring with a rocking beam,
and rigid bore rods, result from the vis inertia of the beam due to the considerable
I, JOSEPH VOGT, of Niederbruck, Haut-Alsace, Germany, Manufacturer, 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 improvements in boring apparatus for boring at
great depths.
One of the said improvements has for its object, on the one hand, to lessen the
inconveniences which, in the ordinary method of boring with a rocking beam,
and rigid bore rods, result from the vis inertia of the beam due to the considerable

page_text: motion thereof, and, on the other hand, to obviate the inconveniences which in
the case of boring apparatus working with hauling cable and rigid boring rods,
result from the fact that when considerable depths have been reached so that the
bore rod has become very heavy, or when the boring tool becomes wedged in the
bore-hole, the pulley that works the cable cannot operate with increased trac-
tional force, as is the case with the rocking beam arrangement.
Furthermore, instead of the cable which has been combined with the beam
for transmitting the motion of the engine crank to the boring tool in order to
obviate the above named difficulties, there is employed, according to the present
invention, a rigid bore rod the advantages of which, as compared with the cable,
are well known. Other improvements relate to various improved constructions of
boring tool, as will be presently explained.
In the accompanying drawings, Figs. 1 and 2 shew in elevation and plan
respectively a boring apparatus comprising the first named improvement.
Figs. 3 and 4 are sections in vertical planes at right angles to each other and
Fig. 5 is a plan, of an improved boring tool. Figs. 6, 7 and 8 are similar views
of another improved boring tool; Fig. 9 is a vertical section of a third form of
boring tool, Fig. 10, being a view, looking from below, of the tool holder, and
Fig. 11 a similar view of the tool.
The bore rod y is supported at its upper end upon a frame m which in its turn
rests on a second frame n which is suspended by two cables o each passing over
a pulley which pulleys are mounted on the one end of a rocking beam, or of
two or more rocking beams h, turning on the axis d which may be raised or
lowered. The said cables o, after passing partly round the said pulleys have
their ends attached to bolts e which are connected by rods i to the axis d on which
the beams rock. This axis is arranged to be vertically adjusted in the framing
of the boring machine, such as by means of screw rods and worm wheel nuts f
attached to the bearings of the said axis, and consequently the bolts e are simul-
taneously vertically adjusted, so that the distance between the centres of the
pulleys on the beam and the bolts e will always remain the same, whereby the
lengthening of the cables on the descent of the bore rod is prevented.
Elastic devices and we are interposed both in the length of the cables, as
also between the bore rod and its supporting frame and between the point of
attachment of the connecting rod of the driving crank and the beam, so that
the stroke of the bore rod during its descent can be extended somewhat by the
compression of these elastic devices.
The elastic devices and are conical volute springs for the bore rod support
and connecting rod connection, while helical springs w may be used for the elastic
connection of the two cables, such springs bearing on the one hand against a
metal box attached to the bolt e, and on the other hand against a disc z attached
to the end of the cable.
For preventing the bore hole from deviating from the perpendicular, in the
case of very inclined strata or strata of unequal hardness, so as to avoid the use
of flat boring tools such as are usually employed which easily become wedged in
the unequal strata, I employ a boring tool such as is shown in Figs. 3 to 5. This
also has the advantage of dispensing with the use of cross shaped cutters which,
in the case of borings of large diameter are very heavy and consequently difficult
to construct and maintain in an efficient condition.
The boring tool consists of a head piece or guide a of a diameter slightly less
than that of the bore hole, and adapted to be attached to the lower end of the
bore rod, the lower end of which head-piece has a central socket formed in it
for the reception of a central cutter c round which are arranged other sockets for
the reception of other cutters b, thus forming a crown of comparatively small
and easily renewable cutters that operate with a uniform percussive action on
the bottom of the bore hole. The bore rod and head being rotated during the
boring operation, the cutters will cut a perfectly cylindrical bore hole. The
head and cutters may have channels formed in them for the supply of water
through the tubular bore rod.
་

page_text: In order to cause the cutters to cut an enlarged bore hole so that a lining tube
can be sunk in the same as the boring proceeds, the excentric boring tool shown
in Figs. 6 to 8 may be used. The cutter head a and cutters 6 are arranged
excentrically relatively to the bore rod and central boring tool which in this case
is made of such a length as to extend some distance below the other cutters..
By this means while the cutter head a is only of such a size that it can be
passed down freely through the interior of the lining tube s, which has been
sunk to near the bottom of the bore hole, yet owing to its excentric form, on
causing the projecting central cutter c to cut a central drift in the bottom of the
bore hole, and that causing the bore rod g and cutter head a to rotate one of the
excentric cutters & will cut a cylindrical bore hole of a slightly larger diameter
than the outer diameter of the lining tube, which can consequently be sunk
farther down as the boring proceeds, while the other cutters pulverise the detritus.
The cutters cb may have channels 'leading into them from the hollow boring
rod for admission of a jet of water to wash out the sludge.
For enabling the boring apparatus to cut out sample cores from the boring for
shewing the nature of the strata passed through, the boring tool shewn in Figs. 9
to 11 is used. In this case the cutter head is formed with a central passage,
through it, of the size required for the sample core, and concentrically round
this are arranged in a circle the separate small cutters b, which in revolving with
the head cut an annular bore hole leaving the said core in the centre. This may
be broken off and raised to the surface from time to time by any known means.
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
1. Apparatus for boring at great depths consisting of one or more oscillating
beams having their axis of oscillation vertically adjustable and carrying pulleys
over which pass cables fixed at one end to a frame which carries the boring rod
and at the other end to the axis of oscillation of the beam or beams, in such a
manner that when the said axis is vertically adjusted the distance between the
centres of the pulleys and the points of attachment of the cables to the said axis
is constant, substantially as described.
2. In an apparatus for boring such as is referred to in Claim 1, two or more
beams side by side moved simultaneously by means connected to them through
a spring, which beams carry pulleys over which pass cables attached at one end
by means of a spring frame to the boring rod, and at the other end by means of
a spring to suitable points of attachment, substantially as described.
3. A boring tool comprising small cutters fixed in a head or guide piece
around a central cutter also fixed therein in such manner that by combined
reciprocating and rotary movement of the boring rod a circular hole is cut, sub-
stantially as described with reference to Figs. 3 to 5.
4. A boring tool comprising a head or guide piece attached excentrically to
the boring rod and one or more cutters fixed excentrically round a central cutter
which works at a lower level than the cutters around it so that it cuts a small
hole first which is afterwards enlarged by the other cutters, substantially as
described with reference to Figs. 6 to 8.
5. A boring tool consisting of a head or guide piece having a central hoie
around which are inserted into the head several cutters so that an annular hole
is bored leaving a central core, substantially as described with reference to
Figs. 9 to 11.
ABEL & IMRAY,
Agents for the Applicant.