AN IMPROVED LUBRICATOR SPECIALLY ADAPTED FOR COAL AND OTHER TUBS USED IN MINING OPERATIONS
Year: 1868

page_text: LETTERS PATENT to Robert Hallimond, of Escomb, Bishop Auckland,
in the County of Durham, for the Invention of "AN IMPROVED
LUBRICATOR SPECIALLY ADAPTED FOR COAL AND OTHER TUBS USED IN MINING
OPERATIONS."
Sealed the 15th June 1869, and dated the 17th December 1868.
PROVISIONAL SPECIFICATION left by the said Robert Hallimond at the
Office of the Commissioners of Patents, with his Petition, on the
17th December 1868.
I, ROBERT HALLIMOND, of Escomb, Bishop Auckland, in the County
of Durham, do hereby declare the nature of the said Invention for
"AN IMPROVED LUBRICATOR SPECIALLY ADAPTED FOR COAL AND OTHER TUBS USED
IN MINING OPERATIONS," to be as follows:-
The novelty of this Invention consists in adapting to the sides of a tub
used in mining operations an arrangement for lubricating the axles or
bearings of the wheels on which such said tub runs, so that each time
the said tub comes to "bank" a few drops of oil shall fall on to the
bearings of the axles, the vessel being so arranged and constructed that
the oil can only escape from the vessel containing it when the tub is in

page_text: use or at work. I propose to effect this by the following means, that is
to say I form a hollow vessel of any convenient shape, and with a
hemispherical bottom, at the centre of which is a hole or seat, into which
fits a loose ball of metal or spherical valve. In connection with the
aforesaid hole a hole extends right and left, and into these two holes
pipes are screwed and fitted, each with a plug or valve for regulating
the quantity of oil that shall escape or pass out on to the bearings of
the axles; the outer and open ends of the said pipes being arranged
immediately over the bearings of each axle; this arrangement is screwed
or bolted to each side of the tub, so that when the tub comes to "bank"
and is tilted to discharge its contents, and supposing the vessel to be
charged with oil, the effect will be to throw the spherical valve out of
its seat and allow the oil to fill the aforesaid pipes and pass out at the
mouths thereof on to the bearings of the axles; the righting of the tub
will throw the spherical valve again into its seat, and shut-off-the
further escape of oil until the tub is again brought to "bank" ns before,
and so on in succession.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Robert Hallimond in the Great Seal Patent Office
on the 17th June 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
HALLIMOND, of Escomb, Bishop Auckland, in the County of Durham,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventeenth day of December, in the
year of our Lord One thousand eight hundred and sixty-eight, in the
thirty-second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Robert Hallimond, Her special licence
that I, the said Robert Hallimond, my executors, administrators, and
executors,
assigns, or such others as I, the said Robert Hallimond, my
administrators, and assigns, should at any time agree with, and
no others, from time to time and at all times thereafter during
the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "AN

page_text: IMPROVED LUBRICATOR SPECIALLY ADAPTED FOR COAL AND OTHER TUBS USED
IN MINING OPERATIONS," upon the condition (amongst others) that I,
the said Robert Hallimond, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and. ascertain the nature of the
said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Robert Hallimond, do hereby
declare the nature of the said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained
in and by the following statement, that is to say:-
This. Invention consists. in adapting to the sides of a tub used in
mining operations. an arrangement for lubricating the axles or bearings
of the wheels on which such said tub runs, so that each time the said
tub comes to "bank" a few drops of oil shall fall on to the bearings
of the axles, the vessel being so arranged and constructed that the oil
can only escape from the vessel containing it when the tub is in use or
at work. I propose to effect this by the following means, that is to
say I form a hollow vessel of any convenient shape and with a
hemispherical bottom, at the centre of which is a hole or scat, into
which fits a loose solid ball of metal or spherical valve. In connection
with the aforesaid hole other holes extend right and left, and into these
two holes pipes are screwed and fitted each with a plug or valve for
regulating the quantity of oil that shall escape or pass out on to the
bearings of the axles, the outer and open ends of the said pipes being
arranged immediately over the bearings of cach axle; this arrangement
is screwed or bolted to each side of the tub, so that when the tub comes
to "bank" and is tilted to discharge its contents, and supposing the
vessel to be charged with oil, the effect will be to throw the spherical
valve out of its seat and allow the oil to fill the aforesaid pipes and pass
out at the mouths thereof on to the bearings of the axles; the righting
of the tub will throw the spherical valve again into its scat and shut off
the further escape of oil until the tub is again brought to bank as
before, and so on in succession..
And in order to explain this Invention more completely, I now.
wood to describe the host means I am acquainted with for carrying

page_text: the same to practical
Sheet of Drawings accompanying these Presents, and to the numeral
figures and letters of reference marked thereon respectively as follows:-
DESCRIPTION OF THE DRAWING.
Figure 1 represents a side elevation in longitudinal section of a tub
used in mining operations, shewing my improvements applied thereto;
Figure 2 an end elevation of Figure 1; Figures 3, 4, 5, and 6, represent
detached views of my improvements drawn to an enlarged scale. Figure 3.
shows a longitudinal section of my improved lubricator; Figure 4 a
transverse section through the line A, B, at Figure 3; Figure 5 a top
plan view of the vessel employed to contain the lubricating matter, and
Figure 6 shows the construction of the bearings in which the wheels
rotate. At each of the foregoing Figures similar letters of reference
are employed-to- denote-corresponding parts, in so far as such-parts-
appear or can be seen at cachi of such said Figures respectively.
A marks a tub mounted on wheels and axles B and C; Da cast-iron
vessel to contain oil or other suitable lubricating matter. The con-
struction of this vessel is as follows:-The inside and bottom thereof
is formed dished, and with a hole at a communicating with other
holes b, c, made across the entire width of the vessel D. G is a metal
ball which rests in a scat formed at the top of the hole a, and operates
as a valve to shut off or open the communication between the reservoir
containing the oil and the holes by which the oil passes out on to the
axles by the tilting of the tub when it is brought to "bank," as before
stated; H, H, are flanges formed on the vessel D for connecting it to
the sides of the tub, there being one vessel D at each side, as shewn at
Figure 2; I, I, are short pipes screwed into the holes b, c; K, a coupling
piece screwed on to I, the picce K is formed with a taper hole at d; L, a
taper plug, which may be fixed to the pipe I by a cross piece or
otherwise; e, are other short pipes screwed into the coupling piece K ;
M is the lid of the oil reservoir.
In using a lubricator of the above construction the workman adjusts
the coupling piece on the pipe I by the screw thereon, so as to leave
sufficient space between the hole therein and the plug L, so as to allow
the required quantity of oil to pass on to the axles cach time the tub
is tilted, and the ball or valve G rolls out of its seat, and allows the oil
to pass from the reservoir into the pipes 1.

page_text: Having now fully described and set forth the nature and object of my
said Invention for "An Improved Lubricator specially Adapted for Coal
and other Tubs used in Mining Operations," together with the best
means I am acquainted with for carrying the same into practical effect,
I would remark in conclusion that what I claim as my Invention
intended to be secured to me by the herein-before in part recited Letters
Patent is as follows, I claim so constructing a lubricator for tubs used
in mining operations, as that it is self-acting and discharges its lubri-
cating matter only when the tub is in use and each time it comes to
"bank," as above described.
In witness whereof, I, the said Robert Hallimond, have hereunto
set my hand and seal, this Sixteenth day of Junc, in the year
of our Lord One thousand eight hundred and sixty-nine.
ROBERT HALLIMOND. (L.S.)