IMPROVEMENTS IN APPARATUS CHIEFLY DESIGNED FOR BORING WELLS
Year: 1884

page_text: I WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake & Co Patent Agents
Southampton Buildings London in the County of Middlesex do hereby declare the
nature of said invention for "IMPROVEMENTS IN APPARATUS CHIEFLY DESIGNED
FOR BORING WELLS to be as follows:-
This invention relates to boring apparatus, and has for its object to provide an
automatic instrument especially adapted for boring deep wells.
According to the said invention the boring-bar carries at its underside a bit and
is connected to a shaft by means of keys or the like. This shaft is guided in its
movements by a sleeve. This arrangement secures great solidity of the apparatus
and enables the different parts of the same to be readily taken asunder.
The upper part of the sleeve has a square section and serves to guide the head of
the frame. The said upper part is provided with a screw for connection with the
boring-rod or steel-wire rope.
A suitable frame having a head piece to which rods are fixed serves both as a
guide for the boring-bar and as a base for the mechanism of the automatic detent-
apparatus. At their lower ends the said rods are held together by means of a ring.
The said shaft is provided with movable and fixed wings.
The movable wing oscillates in bearings of steel or other suitable material which
are secured by pins, as the wing has to be introduced into the sleeve after the
insertion of the shaft the said pins are introduced through suitable holes at the
bottom of the sleeve and are kept in their place by the sleeve itself.
While in operation, the frame rests upon the bottom of the bore hole. Upon the
descent of the boring-bar the sleeve acts upon the said shaft in an automatic
manner as follows, that is to say. The movable wing is turned by the inclined
upper end of a slot formed in the said sleeve. At the ascent of the sleeve the
wing is caught by a notch in the said sleeve and lifted thereby. When the boring-
bit has reached nearly its highest point, the inclined planes of arms attached to the
head piece push the wing out of its notch whereby the shaft, and with it the drill,
falls. The fixed wing serves to guide the shaft relatively to the slot.

page_text: The length of the frame should exceed that of the boring-rod (inclusive of the
suspended piece) by a distance equal to the length of the stroke of the bit, less
say 21/2 inches, so that the frame is taken along a short distance after the shaft has
fallen, so as to facilitate the turning.
This apparatus will work without water and without rebound of the working
beam. The above described apparatus secures an exact working of the instrument,
which preferably has a stroke of 4 feet with 20 to 30 blows per minute.
Dated this First day of March 1884
HASELTINE, LAKE & Co.,
For the Applicant.

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particularly described and ascertained in and by the following statement:―
This invention relates to boring apparatus, and has for its object to provide an
automatic instrument especially adapted for boring deep wells.
In the accompanying drawing
Figures 1 and 2 represent two different views of apparatus of this kind.
Figures 3 and 4 are views of details.
The boring-bar a carries at its lower end the drill b and is connected to the
shaft c by means of keys a¹ or the like.
This shaft is guided in its movement by the sleeve d. This arrangement secures
great solidity of the apparatus and enables the different parts of the same to be
readily taken apart.
The upper end of the sleeve d has a bar e of square section secured to it, which
slides in the head f of the frame and guides the sleeve, The said square bar is
provided with a screw not shown in the drawing for connection with a lifting rod
or stecl-wire rope.
The said frame, the rails or rods g g of which are fixed to the head ƒ serves both
as a guide for the boring-bar and as a base for the mechanism of the automatic
detent-apparatus. At their lower ends the said rails or rods are held together by
means of a ring i.
The shaft carries the detent apparatus which comprises a movable wing c¹
and a fixed wing c"-Figures 3. and 4-which are adapted to slide in grooves or
slots d formed in the sleeve.
The movable wing c oscillates in bearings h h of steel or other suitable material
which are secured by conical pins h¹¹. As the wing has to be introduced into the
shaft c after the insertion of the latter into the sleeve the said pins are introduced
through suitable holes at the bottom of the sleeve and are kept in their places by
the sleeve itself,
While in operation the bars g of the frame rest upon the bottom of the bore
hole.
Supposing the drill to be resting upon the bottom of the hole; upon the descent
of the steel wire rope or the like the sleeve d also drops and acts upon the wing c¹
in an automatic manner as follows, that is to say, the movable wing c¹ is turned
by the inclined upper ends d' of the slots d', upon the ascent of the sleeve, the
wing c is caught in notches d formed in the said slots and lifted thereby, When
the boring-bit or drill has reached nearly its highest point, the inclined plane or
planes of an arm or arms attached to the head piece f push the wing c¹ out of its
notches, whereby the shaft c, and with it the drill, falls.
The wing e serves to retain the shaft c and also the wing c¹ in their proper
positions relatively to the slots or grooves d¹¹
The length of the rods g should exceed that of the boring bar with its shaft c by
a distance equal to the length of the stroke of the drill, less say 22 inches, so that
the frame is moved a short distance after the shaft has fallen, so as to facilitate the
turning.
The apparatus will work without water and without rebound. The detent
apparatus secures an exact working of the boring bar which preferably has a stroke
of 4 feet with 20 to 30 blows per minute.

page_text: 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 :-
First. An automatic boring apparatus consisting of a shaft c connected to the
boring-bar by means of keys, and provided with a movable wing c¹ and a fixed
wing c; of an arm or arms k inclined at its or their lower end or ends and serving
to effect the automatic disengagement of the said shaft; and of a frame comprising
the head piece f and two rails or rods g g, which frame serves to carry the arms k k
and to guide the sleeve d and the boring-bar, essentially as described with reference
to the accompanying drawing.
Second. In boring apparatus, the automatic disengagement of the shaft c by
means of a wing e¹ arranged on the said shaft and one or two rails & inclined upon
its or their lower end or ends and fixed to the head of the frame.
Third. The connection of the boring-bar with the shaft by means of keys which
enable the different parts of the apparatus to be readily mounted or taken apart.
Fourth. In boring apparatus, the arrangement and application of a guiding
frame composed of two rails or rods gg, a head-piece f, and a ring i.
Dated thin 6th dov of Novomban 1881.
HASELTINE, LAKE & Co.,
For the Applicant.