Improvements in or connected with Colliery Tub and other like Wheels.
Year: 1891

page_text: Date of Application, 3rd Mar., 1891
Complete Specification Left, 2nd Dec., 1891-Accepted, 2nd Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in or connected with Colliery Tub and other
like Wheels.
I, WILLIAM FREDERIC BUTLER, of Highfield, Wrexham, in the County of
Denbigh, North Wales, Colliery Proprietor, do hereby declare the nature of this
invention to be as follows:
--
This invention relates, mainly, to the wheels on which colliery tubs and like
trucks or vehicles are mounted and run, and in which the axles are stationary, and
the wheels mounted loosely and revolve on the ends thereof.
A colliery tub or truck or like wheel with improvements according to my inven-
tion applied thereto consists as follows:-
In connection with an annular or other suitably shaped axle lubricant box round
the axle of a colliery tub or like wheel, I provide means whereby access thereto
is rendered easy, and in which they may be easily replenished with lubricant, the
parts being fitted and arranged to provide tight joints and a strong construction.
In the carrying out of my invention the lubricant box-which is of the known
kind consists of an annular chamber disposed round the hub of the wheel and the
shell of the chamber being connected to the rim and hub of the wheel by ribs
closed at the inner side of the wheel. At the outside or front the box is open, and
to enclose it I provide a cap or cover, which fits into the mouth of the box. The
cap has a flange, the inner side of which is adjacent to the face of the metal being
the edge or rim of the mouth of the lubricant box, and upon or in connection with
it is provided a ring of asbestos or other suitable packing material (which may be
placed in a groove in the flange), which comes between the flange and the rim of
the mouth of the lubricant box and when made tight forms a tight joint therewith.
The part of the cap which enters the lubricant box is provided with projecting
lugs or their equivalent, and the mouth of the box has a projecting ledge or its
equivalent having inclined inner surfaces and slots corresponding with the lugs on
the cap, these being so adapted that when the cap is placed in the mouth of the
box the said lugs or their equivalent enter, and by then turning the cap the
inclined surfaces in the box cause the cap and packing ring to be pressed tightly
against the face of the metal of the box and form a joint. To keep the cap in its
place I provide means such as a rivet, pin, key or other equivalent device, which
couples or locks the cap to the box. Thus the lubricant box is securely closed,
and the axle fittings and holding-on device are kept clear of dirt and dust.
When occasion arises to have access to the box it is merely necessary to remove the
locking or coupling device and turn the cap back when it will come away from
the box.
For the purpose of supplying the box with lubricant I provide on the side of the
box a boss having a duct leading into the box. The mouth of this duct I close
with a stopper. The stopper fits into a hole or aperture in the boss and has on it
a flange or flanged part, the inner face of which bears. on the face of the boss.
The flange of the stopper is adapted to bear against the side of the boss which is
inclined at this point and one edge thereof takes into an inclined groove or recess
on the metal of the lubricant box; so that by placing the stopper in the duct and
turning it, it secures itself to the boss and its flange makes joiut with the face of
the boss and the duct is closed. To keep the stopper from turning, I provide a
split pin passing through the metal of the flange and the metal of the boss, or
equivalent means. By means of the duct the lubricant box can be readily supplied

page_text: with lubricant without removing the cover of the box, the stopper being easy of
removal and replacement.
Dated this 2nd day of March 1891.
CHEESBROUGH & ROYSTON,
15, Water Street, Liverpool, Applicant's Patent Agents.
Improvements in or connected with Colliery Tub and other
like Wheels.
1, WILLIAM FREDERIC BUTLER, of Highfield, Wrexham, in the County of
Denbigh, North Wales, Civil Engineer and Colliery Proprietor, 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, mainly, to the wheels on which colliery tubs and like
trucks or vehicles are mounted and run, and in which the axles are stationary, and
the wheels mounted loosely and revolve on the ends thereof.
A colliery tub or truck or like wheel with improvements according to my inven-
tion applied thereto consists as follows:-
In connection with an annular or other suitably shaped axle lubricant box round
the axle of a colliery tub or like wheel, I provide means whereby access thereto
is rendered easy, and by which the lubricant box may be easily replenished with
lubricant, the parts being fitted and arranged to provide tight joints and a strong
construction. In the carrying out of my invention the lubricant box-which is of
known kind-consists of an annular chamber disposed round the hub of the wheel,
the shell of the chamber being connected to the rim and hub of the wheel by ribs
closed at the inner side of the wheel. At the outside or front, the box is open, and
to enclose it I provide a cap or cover, which fits into the mouth of the box. The
cap has a flange, the inner side of which is adjacent to the face of the metal being
the edge or rim of the mouth of the lubricant box, and upon or in connection with
it is provided a ring of india rubber, lead, asbestos, or other suitable packing
material (which may be placed in a groove in the flange), which comes between
the flange and the rim of the mouth of the lubricant box, and when made tight
forms a tight joint therewith. The part of the cap which enters the lubricant box
is provided with projecting lugs or their equivalent, and the mouth of the box has
a projecting ledge, or its equivalent, having inclined inner surfaces, and slots
corresponding with the lugs on the cap, these being so adapted that when the cap
placed in the mouth of the box the said lugs or their equivalent enter, and by
then turning the cap the inclined surfaces in the box cause the cap and packing
ring to be pressed tightly against the face of the metal of the box and form a joint.
To keep the cap in its place, I provide means, such as a rivet, pin, key, or other
equivalent device, which couples or locks the cap to the box. Thus the lubricant
box is securely closed, and the axle fittings and bolding-on device are kept clear of
water, dirt, and dust. When occasion arises to have access to the box, it is merely
necessary to remove the locking or coupling device and turn the cap back when it
will come away from the box.
For the purpose of supplying the box with lubricant I provide on the side of the
box a boss having a duct leading into the box. The mouth of this duct I close
with a stopper. The stopper fits into a hole or aperture in the boss and has on it
a flange or flanged part, the inner face of which bears on the face of the boss. The
flange or stopper is adapted to bear against the side of the boss which is inclined
at this point and two edges thereof take into inclined grooves or recesses in the
metal of the lubricant box; so that by placing the stopper in the duct and turning
it, it secures itself to the boss, and its flange makes joint with the face of the boss

page_text: and the duct is closed. To keep the stopper from turning, I provide a split pin,
passing through the metal of the flange and the metal of the boss, or equivalent
means. By means of the duct the lubricant box can be readily supplied with
lubricant without removing the cover of the box, the stopper being easy of removal
and replacement.
In the drawings which serve to illustrate my invention,
Figure 1 is an outside elevation with the lubricant receptacle cap removed; and
Figure 2 is a cross section of the wheel.
Figure 3 is a view shewing the inner side of the cap.
Figure 4 illustrates the stopper for closing the lubricant supply aperture.
Referring now to the drawings, a designates generally the wheel; & is the annular
ring of metal; and the back forming the outer part of the case in which the
lubricant is held. c is the hub of the wheel throngh which the axle passes; dis
the cap and e (Figure 4) is the stopper. 63 are the projecting ledges having
inner inclined surfaces; dare the lugs on the cap d, which pass through the
spaces between the ends of the ledges 2-when the cap is applied and which
engage with the under surface of said ledges 2, when the cap is turned. f is an
india rubber or other suitable washer or ring which lies between the edge of the
annular ring b and the flange d³ of the cap d. 63 is a hole in b, and are holes
in through which a split or other pin is passed when the cap is fixed to prevent
its becoming unfixed.
is the boss or projection on the annular ring through which the lubricant is
fed to the space within, said boss or projection having a communication /¹
between its exterior surface and the interior of the oil-space. The stopper & has a
plug e and a curved projecting part e², a hole being provided through its back,
through which a split or other pin may be passed, said pin also being adapted to
pass through an aperture 2 in h, by which means the stopper is locked, that is,
prevented from turning. One edge of the back of the stopper fits into a dovetail
recess on the ring formed by the projection ³, whilst the projecting edge of the
stopper fits over the upper edge of h, as shewn.
The spindle is designated s, and has a collar on the back which comes against the
inner edge of the hub e, and is fitted with a loose ring and split pin t, or other
suitable device, at its outer end to hold the wheel on.
The operation of fixing the cap on the wheel is by passing the projections d'
thereon through the spaces between the ends of the ledges 62, and then turning the
cap round, by which movement the projections d' come in contact with the inclined
inner edge of the ledges, and so draw the flange d² towards the edge of the ring b,
thereby pressing or squeezing the rubber or other washer between such edge and
the cap, and thereby making a tight joint between them, so that no lubricant
A securing pin is then passed through the holes d³, and the cap is
can escape.
fixed.
To supply oil to the annular space within 4, the stopper e is removed, and the oil
or lubricant introduced through the communication hole '.
The above construction is simple, and cheaply made and it affords a ready
means for applying it to the axle, or taking it off, and when the lubricant chamber
is filled with lubricant, the wheel may be run for say thirty days, or over, without
attention or re-oiling; and the re-oiling, when done, will not take more than, say,
from 3 to 5 minutes for the four wheels of a truck or tub.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
1. In colliery tub and other like wheels of the kind herein referred to, the
combination with an annular lubricant chamber, of a cover or cap, said cover or
cap being adapted to be fastened to or on the oil-chamber by means of inclined
planes substantially as set forth.

page_text: 2. The stopper e in combination with the ring ; substantially as and for the
purposes set forth.
3. The colliery tub or other like wheel, comprising the annular ring b, with
inclined ledges, cover or cap d with projections d', washer f, all arranged,
constructed, and adapted to operate as set forth with reference to and shewn in the
drawings.
Dated this First day of December 1801
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicant's Patent Agents.