Improvements in Apparatus for Drilling, Boring, or Perforating Rock, Coal, or other Mineral.
Year: 1885

page_text: Improvements in Apparatus for Drilling, Boring, or Perforating
Rock, Coal, or other Mineral.
We AUGUSTUS EDWARD STAYNER Managing Director of the Hardy Patent Pick
Company (Limited) Heeley near Sheffield Yorkshire and MARK WAINWRIGHT of
43 Wolseley Road Sheffield in the County of York Engineer do hereby declare the
nature of the said invention for "IMPROVEMENTS IN APPARATUS FOR DRILLING
BORING OR PERFORATING ROCK COAL OR OTHER MINERAL "and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement in writing, and on reference being had to the
accompanying drawings:-
This Invention relates to certain new and effective improvements in the
construction of drills for drilling boring or perforating rock coal or other mineral,-
the objects of the invention being the prevention or great diminution of the friction
to which the working parts of such apparatus are more or less subject, and the
production of a drilling apparatus that can be more readily manipulated and used
than those as at present constructed.
In order that the practical carrying out of the said invention may be fully
understood we have annexed hereto a sheet of explanatory drawings marked with
Figures and letters of reference corresponding with those in the following
description thereof, that is to say :-
Figure 1, is a front elevation of the apparatus complete, drawn to a scale of one
and a half inches to the foot.
Figure 2, is a side elevation drawn to the same scale.
Figure 3, is a sectional view, drawn to a scale of three inches to the foot, and
showing the internal working parts of the apparatus, the cross section being taken
ou the line A-B in Figure 1.
Figure 3, A, shows the rollers and the pins or projections on the circular neck or
collar. And Figures 4, and 5, are detailed views showing the movable swivel foot
and clip.
The same letters of reference indicate like parts in all the Figures.
This invention consists firstly in providing and arranging between, and fixing to
or casting on, the upright metal standards or frame a, of the apparatus, a strong

page_text: metal body or casing b, through openings c, in the top and bottom of which the
main screwed bar or rod d, works, to either end of which the drill can be attached.
The top of the body or casing is made somewhat in the form of a circular nut e,
encircling the main screwed shaft, its base e¹, forming the top or cover of the body
or casing below the base of the nut a space f, is left within the body or casing
and round the main screwed bar or rod, in which space and fitted on pins or
projections g, (see Figure 3, A,) which are arranged at suitable distances apart and
cast on or fixed to a circular neck or collar h, which surrounds the main screwed
bar or rod d, are a number of small steel rollers, detached views of one of which is
shown at i, i, Figure 3, A; the inner surfaces of these rollers are flat and smooth
but their outer surfaces are semicircular or bevilled, so that in revolving, as they
will do on the drill being set in motion, round the screwed bar or rod, they shall
not cut or wear the inside of the body or casing. A suitable number of these
rollers is five, but seven, or more or less, can be used, provided that they are not
arranged so near to each other that they will touch each other in revolving.
Underneath this space is fitted a bevilled tooth wheel j, which is fixed on, and is
provided for the purpose of propelling the screwed bar or rod d; and below this
wheel, at one side of the interior of the body or casing, another but larger bevilled
toothed wheel, is arranged and fitted, which gears with the toothed wheel j, the
larger wheel k, being mounted on the spindle l, which carries the discs hereinafter
described.
The invention consists secondly in providing and fitting a plain flat disc m, of
strong metal which is cast on or attached to a bracket n, working the upright
slide for raising or lowering the body of the apparatus. In close proximity to this
flat disc another metal disc or circular plate o, is fitted and keyed on the spindle L,
this disc or plate o, is of a slightly raised semicircular form and is perforated thus
imparting to it a spring like action; and in order to prevent any mineral or other
dust or obstruction entering the perforations while the apparatus is being used a
movable or permanent leather or other suitable covering will be provided.
The object attained in perforating this disc is to prevent locking with the face of
the other disc. These discs are provided and employed for the purpose of giving an
automatic feed to the drill.
Outside this perforated spring disc a nut p is fitted to work on the spindle 1, the
nut having suitable pins or projections on it so that it may be more readily turned
by hand when required to tighten up or loosen the perforated spring disc. The
end of the spindle is made square and on it a haudle is put to operate the
spindle when necessary to draw back the screwed bar or rod d.
The invention consists thirdly in fitting and attaching to the foundation or
bottom portion of the frame or standards a, of the apparatus, a swivel foot r (See
Figures 1. 2 and 5) and a clip s which is made movable and adjustable so that the
whole apparatus can very readily be turned either wholly or partially round or to
one side or the other in any required direction for effective use.
The clip a consists of a socket made preferably of malleable iron, turned and
bored to the required size and shape and fitted on and secured to a cylindrical
projection formed on the bottom portion of the frame or standards a of the
apparatus. It is tightened up or loosened by means of a tightening screw as required
according to the position the drill is required to be worked in.
For this purpose the socket is slit vertically at one side and the slit is flanked by
lugs through which the tightening screw is passed and its connection is made with
the cylindrical projection by means of a set screw entering a circumferential
groove on such projection.
The foot is pivoted between another pair of ears formed below the socket of
the clip such ears and socket being preferably cast in one piece.
The method of using this machine is as follows:-The drill for boring or
perforating can be attached as before described to either end of the screwed bar or
rod d and the apparatus is fixed at its top and bottom by means of a screw
conveniently arranged and secured in or to the place or part where the rock coal

page_text: or mineral is to be operated on. The operator then puts on the ratchet or plain
handle and works the machine to effect the required drilling boring or perforating.
Having now particularly described and ascertained the nature of the said
invention and in what manner it is to be performed or carried out in practice
we would have it understood that we do not limit ourselves to the precise
details of the improvements as hereinbefore described and as illustrated on the
accompanying drawings, for equivalent modifications or variations, it will be
evident to the practical engineer, can be made therein without departing or
deviating from the principles or main features of this invention; and in conclusion
we declare that what we claim is
1. The construction and general arrangement and combination of the working
parts constituting an improved apparatus for drilling boring or perforating rock
coal or other mineral, substantially as hereinbefore is specified and as illustrated on
the accompanying drawings; and we specially clain :-
2. In a drilling boring or perforating apparatus the application arrangement and
use of roller bearings or rollers i, in combination or not with pins or projections g,
and neck or collar h, for diminishing friction in the working parts of such apparatus.
3. In a drilling boring or perforating apparatus the application arrangement and
use of discs or circular plates m, and o, for the purposes hereinbefore set forth.
And, 4. In connection with or in addition to a drilling boring or perforating
apparatus the application, and the fitting and use, of a swivel foot r, and clip 8,
either combined or separate, for the purposes hereinbefore set forth.
A. E. STAYNER.
M. WAINWRIGHT.
By A. M. & Wm Clark,
Patent Agents,
53, Chancery Lane, London, W.C.
Dated this 22nd day of July 1000.
A. E. STAYNER.
M. WAINWRIGHT.
By A. M. & Wm Clark,
Patent Agents,
53, Chancery Lane, London, W.C.