Improvements in Axle Boxes for Pit Corves and other like Purposes.
Year: 1898

page_text: Date of Application, 10th Sept., 1898
Complete Specification Left, 10th June, 1899-Accepted, 15th July, 1899
PROVISIONAL SPECIFICATION.
Improvements in Axle Boxes for Pit Corves and other like
Purposes.
I, JOHN HAYNES, of Beacon Villa, Silkstone Common, in the County of York,
Colliery Proprietor, do hereby declare the nature of my invention to be as
follows:-
My invention relates to improvements in the construction of axle boxes or bearings
for axles and revolving shafts and more particularly the axles of pit corves, with the
object of keeping the neck of the axle automatically lubricated, and to prevent the
waste of the lubricant and the entrance of dust and dirt.
Axle boxes as usually made consist merely of an upper bearing attached to the
corve or wagon, which rests upon the neck of the axle, and a strap piece passing
underneath the axle to prevent it from getting out of place.
In carrying out my invention according to one arrangement for the use of oil as a
lubricant I construct the bearing in two parts which when put together form an axle
box; each part is preferably made with side chambers to contain oil, and having
communication with a central chamber under or above the bearing portion as the case
may be. Through the centre of the bearing portion I make an opening communi-
cating with the oil chamber, and upon the axle I make a collar which passes through
the said opening and dips into the oil, carrying it up when revolving and lubricates
the neck and bearing, which are enclosed and are thus protected from outside dust
and dirt.
Leather or rubber washers or collars may be used to prevent the escape of oil at the
sides or the axle box.
In a second arrangement which is adapted for the use of grease as a lubricant, I
make the upper part of the axle box (which forms the bearing) hollow forming a
chamber to hold a supply of grease, which can be supplied through an opening made
in the side of the chamber, and which can be closed by a screw plug or a swing lid or
equivalent means.
The underside of the axle neck is protected by a removable cap piece, and does not
necessarily form a bearing. The grease may simply pass through openings made in
the bearing part of the box, to the axle neck, but I prefer to form a collar of rounded
or of globular form centrally upon the neck of the axle the periphery of which will
pass, through an opening made in the crown of the bearing so as to come in contact
with the grease in the grease chamber and carry it up, and so on to the neck and
bearing or instead of one globular collar I may use two or more narrower collars for
the like purpose.
Leather or rubber collars or washers may be used round the axle to prevent the
escape of the lubricant from the sides of the axle box, they are preferably held in an
annular groove made in the axle box.
Dated the 0th day of Santainhor 1008
ROBT. F. DRURY, C.P.A.,
Agent for Applicant, Bank Buildings, George Street, Sheffield.

page_text: Fig. 5, axle box, partly shown in section, and suitable for grease as the lubricant.
Fig. 6, axle box for grease, with top bearing only part being shown in section.
Fig. 7, side view of same.
According to one arrangement which is shown in Figs. 1, 2, & 3, to contain oil as
the lubricant, I construct the box in two parts A, and B, which when put together
form the axle box, the division line being through the centre of the axle C..
Each part A & B, is made with oil chambers D¹ and D², having communicating
passages E, to a central chamber F.
Through the centre of the bearing part G, is an opening H, into the oil chamber F,
and upon the axle C I make a collar I, which dips into the oil within the chamber
and carries it up when revolving, and distributes it over the neck of the axle, inclined
grooves J, carrying the surplus back again into the oil chamber. Leather washers or
the like may be used at the ends of the box to prevent any escape of oil or entrance
of dust. S is the oil supply hole.
In Fig. 5, I show a modification of axle box made for grease as a lubricant, the
upper part of the box which forms the bearing for the axle C, is a grease chamber K,
which is supplied through an opening L, or any like opening, which may be closed by
any suitable means, and passages K², allow the grease to pass to the axle C.
The underside of the axle neck is protected by the part B, which may or may no
form a bearing, and collars M, either made solid with or attached to the axle may be
used to retain the grease.
I may if desirable use a collar such as I in Fig. 4, upon the axle, to come
in contact with the grease in the chamber K, and thus carry it down into the
bearing.
In Figs. 6 and 7, I show an axle box having only the upper bearing, and only
suitable for grease; it consists of one casting A, having a grease chamber N, with a
passage cut through to the axle in the chamber floor so that the grease will
always be in contact with the revolving axle and will be distributed by it upon
the bearing.
The grease is supplied through the hopper 0, by removing the sliding lid P, but

page_text: other forms of lid may be used if preferred, and Q is a retaining bolt or cotter to
prevent displacement of the axle.
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 :-
1-An axle box for pit corves or wagons and other revolving shafts constructed
substantially as hereinbefore described, with reference to Figs. 1, 2 and 3 of the
drawings.
2-An axle box, or bearing for revolving shafts, constructed as hereinbefore
described, with reference to Fig. 5 of the drawings.
3- An axle box for pit corves, constructed as hereinbefore described, with reference
to the Figs. 6 & 7 of the drawings.
ROBT. F. DRURY, C.P.A.,
Agent for Applicant, Bank Buildings, George Street, Sheffield.
ROBT. F. DRURY, C.P.A.,
Agent for Applicant, Bank Buildings, George Street, Sheffield.