IMPROVEMENTS IN MACHINERY OR APPARATUS FOR BORING OR DRILLING ROCKS AND OTHER HARD SUBSTANCES
Year: 1876

page_text: LETTERS PATENT to Gustav Heinrich Neumann, of Philadelphia, in the State of
Pennsylvania, in the United States of America, but at present of 23, Southampton
Buildings, in the County of Middlesex, for the Invention of "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR BORING OR DRILLING ROCKS AND OTHER
HARD SUBSTANCES." A communication from abroad by William Weaver, of
Phoenixville, also in the State of Pennsylvania, in the United States of America.
PROVISIONAL SPECIFICATION left by the said Gustav Heinrich Neumann
at the Office of the Commissioners of Patents on the 25th September 1876.
GUSTAV HEINRICH NEUMANN, of Philadelphia, in the State of Pennsylvania, in
the United States of America, but at present of 23, Southampton Buildings, in the
County of Middlesex. "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR BORING
OR DRILLING ROCKS AND OTHER HARD SUBSTANCES." A communication from
abroad by William Weaver, of Phoenixville, also in the State of Pennsylvania, in
the United States of America.
The boring bit is formed with a double cutting surface, thereby rendering it
greatly superior to the ordinary single bit. This bit is fixed on to the end of the
boring rod, which is mounted in bearings carried by cross heads on the main
frame. This frame is provided with three legs, two of them being extensions of
the side bars of the main frame, and one being pin-jointed to said frame and
extending from the back thereof. Each of said legs is capable of being extended or
contracted to suit uneven ground.
The drill rod or boring bar may be worked by hand or by power. When
power is employed a frame is formed with or secured to the main frame, and on
this frame is mounted a cylinder which will communicate motion to the driving
shaft.
The driving shaft is mounted in bearings carried by the main frame, and when
driven by power has fixed thereon a single cam to raise the boring bar, but when
driven by hand a double cam is fixed thereon, and a hand wheel is fixed on each
end of the driving axis. Each of said cams has a stud or projection fixed to one
side thereof. These studs are made removeable, so that they can be changed in
гр.

page_text: length according to the distance it is desired to turn the drill rod or boring bar.
The bearings for the drill rod have one half thereof removeable, preferably hinged, to
facilitate the ready withdrawal and replacement of the drill bar or boring rod.
Through the upper ends of the two front legs or side bars of the main frame
are a number of holes made so that the upper cross head can be adjusted up and
down, so as to regulate the tension of the springs acting to give the required
motion to the drill rod or boring bar. These springs are threaded around two rods,
and act upon a moveable cross bar, which acts upon the upper side of a boss or
clamp fixed to the boring bar or drill rod. The boring bar or drill rod is turned,
raised and fed downwards by a ratchet nut. This nut consists of a tubular body of
any desired length, having ratchet teeth formed upon its lower end and an opening
in its side which is closed by a friction clamp. Between this clamp and the drill
rod is placed any suitable substance which is held with sufficient frictional contact
by the clamping screws against the rod, so that when the cam strikes against the
underside of the nut to lift it upward the nut will lift the rod with it against the force
of the springs. At the same time that the cain raises the nut and rod, the projection
thereon catches in one of the teeth of the ratchet and partially turns the rod. As
the nose of the cam passes from under the nut after having raised it with the rod,
the springs force the nut and rod back into position again with a quick motion, the
nut striking with full force upon a padded stop. As this nut strikes the stop and
is thereby suddenly stopped in its downward movement, tlie frictional clamp allows
the boring rod to slip through the nut the distance the bit on the end of the rod has
cut, and thus the rod is raised, turned, and fed forward at each action of a cam.
The hand-driving wheels at the ends of the driving shaft may also be used to run
on roads to facilitate the moving of the machine from place to place.
When it is desired to remove the drill bar from its bearings and to place it again
in position, the cross head on which the springs act is pressed upwards and there
held by a suitable pivotted stop.
SPECIFICATION filed in pursuance of the conditions of the Letters Patent, and
of an Order of the Lord Chancellor, by the said Gustav Heinrich Neumann
in the Great Seal Patent Office on the 19th April 1877.
GUSTAV HEINRICH NEUMANN, of Philadelphia, in the State of Pennsylvania, in
the United States of America, but at present of 23, Southampton Buildings, in the
County of Middlesex. "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR BORING
OR DRILLING ROCKS AND OTHER HARD SUBSTANCES." A communication from
abroad by William Weaver, of Phoenixville, also in the State of Pennsylvania, in
the United States of America.
The boring bit is formed with a double cutting surface, thereby rendering it
greatly superior to the ordinary single bit. This bit is fixed on to the end of the
boring rod, which is mounted in bearings carried by cross heads on the main frame.
This frame is provided with three legs, two of them being extensions of the side
bars of the main frame, and one being pin-jointed to said frame and extending from
the back thereof. Each of said legs is capable of being extended or contracted to
suit uneven ground.
The drill rod or boring bar may bo worked by hand or by power. When power
is employed a frame is formed with or secured to the main frame, and on this frame
is mounted a cylinder which will communicate motion to the driving shaft.
The driving shaft is mounted in bearings carried by the main frame, and when
driven by power has fixed thereon a single can to raise the boring bar, but when
driven by hand a double cam is fixed thereon, and a hand wheel is fixed on each
end of the driving axis. Each of said cams has a stud or projection fixed to one
side thereof. These studs are made removeable, so that they can be changed in

page_text: Figure 1 is a front elevation; Figure 2, a side elevation; Figure 3, a back eleva-
tion; and Figure 4, a plan of machinery or apparatus constructed according to the
said Invention; and Figures 5, 6, 7, and 8 are separate views of parts thereof.
a represents a frame which may be of any desired shape or construction. This
frame à is provided with three legs a², a², b, the two legs as being extensions of the
side bars a¹ of the main frame a, the leg b being pin-jointed at b¹ to said frame a
and extending from the back thereof. Each of said legs is capable of being extended
or contracted in length to suit uneven ground by the lower ends thereof being fitted
to slide upon the upper parts thereof, and of being fixed in the required positions by
screws a, a, b. The drill rod or boring bar c may be worked by hand, as shown in
the Drawings, or the machine may be worked by steam or other power. When
power is employed a frame is formed with or secured to the main frame a, and on
such frame is mounted a cylinder which will communicate motion to the driving
shaft d.
I have not thought it necessary to show this arrangement in the Drawings, as
such will be readily understood by a competent mechanic.
The driving shaft d is mounted in bearings a carried by the main frame, and
when driven by power such shaft d has fixed thereon a single cam e to raise the
boring bar c, but when driven by hand a double cam e is fixed thereon, and a hand
wheel is fixed on each end of the driving shaft or axis d. Each of said cams e
has a stud or projection e¹ fixed to one side thereof. These studs or projections c¹
are removeable so that they can be changed in length according to the distance it is
desired to turn the drill rod or boring bar c after each action thereof.
The bearings

page_text: as for the drill rod are made with one half thereof removeable, preferably hinged,
as shown, to facilitate the ready withdrawal and replacement of the drill bar or
boring rod c. Through the upper ends of the two side bars a¹ of the main frame
are a number of holes a made so that the upper cross head can be adjusted up and
down, so as to regulate the tension of the springs g acting to give the required motion
to the drill rod or boring bar c. These springs g are threaded around two rods
h, and act upon a moveable cross bar i which acts upon the upper side of a boss or
clamp c¹ fixed to the boring bar or drill rod c. The boring bar or drill rod c is
turned, raised, and fed downwards by a ratchet nut c. This nut consists of a
tubular body c¹ of any desired length having ratchet teeth formed upon its lower
end and an opening in its side which is closed by a friction clamp c³. Between this
clamp and the drill rod c is placed any suitable substance, which is held with
sufficient frictional contact by the clamping screws against the rod c, so that
when the cam e acts against the underside of the nut to lift it upward, the nut
will lift the rod c with it against the force of the springs g. At the same time
that the cam e raises the nut c² and rod c the projection e¹ thereon catches in one of
the teeth of the ratchet c² and partially turns the rod. As the nose of the cam e
passes from under the nut c³, after having raised it with the boring rod c, the
springs g force the nut c² and rod e back into position again with a quick motion,
the nut c² striking with full force upon a stop a', the top of which may be padded
with a piece of leather or other material. As this nut strikes the stop a², and is
thereby stopped in its downward movement, the frictional clamp allows the boring
rod c to slip through the nut the distance the bit on the end of the rod has cut,
and thus the rod c is raised, turned, and fed forward at each action of a cam e.
The hand-driving wheels f by removing the handles thereof may also be used to
run on roads to facilitate the moving of the machine from place to place, in which
case they must be so fitted with suitable clutches as to enable them to be readily
connected and disconnected with the shaft d.
C
When it is desired to remove the drill bar c from its bearings and to place it
again in position, the cross head i is pressed upwards so as to remove the pressure
of the springs g from the nut when such cross head is secured in such position by.
a pivotted stop j. The end of the drill rod has a double gouge bit c formed or
fixed upon it which will cut more rapidly and effectively than a bit having only a
single cutting edge.
Having thus described the nature of the said Invention, and the mode in which
the same is carried into effect, I would have it understood that what I claim is,---
First. The mode of turning the drill rod or boring bar and feeding it forward,
substantially as herein shown and described.
Secondly. I claim the came having moveable projections e¹ or their equivalent
secured to it to engage with the ratchet teeth on the nut c², and thereby turn the
drill rod c, substantially as herein shown and described.
Thirdly. I claim the combination of the cam e, ratchet nut c², and clamp c³, drill
rod c, springs g, and stop a³, arranged for operation, substantially as herein shown
and described.
And, Fourthly. I claim the drill rod having the double gouge bit formed or fixed
on its end, substantially as herein shown and described.
In witness whereof, I, the said Gustav Heinrich Neumann, have hereunto
set my hand and seal, this Thirtieth day of March, in the year of our
Lord One thousand eight hundred and seventy-seven.