Improvements in Appliances for Lubricating Axles.
Year: 1896

page_text: Date of Application, 26th May, 1896
2002
PROVISIONAL SPECIFICATION.
Improvements in Appliances for Lubricating Axles.
I, THOMAS COOK of Glasgow Steel Works, Washford Road, Attercliffe,
Sheffield in the County of York, Manufacturer, do hereby declare the nature of
iny invention to be as follows:-
This invention relates more particularly to a method of and means for supplying
grease to the axles of pit corve wheels, and to the axles of other like wheels or
pullies; the object of the invention is to obviate the misplacing or loss of the
removable parts of such appliances as are used for the purpose.
1 connect by any suitable means with the boss of a corve wheel for example, and
preferably between two of the arms, a grease cup having communicating holes
through its base to the centre hole and thus to the axle.
The interior of the grease cup which is parallel from top to bottom or there-
abouts may be either plain or screwthreaded, and a plunger either plain or
screwthreaded to fit the cup is provided with a shank by which it can be
turned, and by which action the grease is forced through the holes upon the
axle.
To prevent this removable plunger being lost when withdrawn from the cup
to put in a supply of grease I make a hole centrally through both it and its
shank and pass a pin through it, securing one end at the bottom of the cup
and the other to the inside of the wheel rim, thus when the plunger is withdrawn
it can be moved along the pin but it cannot be removed or be lost.
Dated the 23rd day of May 1896.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.
Improvements in Appliances for Lubricating Axles.
I, THOMAS COOK of Glasgow Steel Works, Washford Road Attercliffe,
Sheffield in the County of York Manufacturer 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 :-
My invention relates more particularly to a method of and means for supplying
grease or other like lubricant to the axles of pit-corve wheels, and to the axles of
other like wheels or pullies; the object of the invention being to obviate the
misplacing or the accidental loss of the loose or removable parts of such appliances
as are used for the said purpose.
The method of carrying out my invention which I prefer is illustrated in the
annexed sheet of drawings in which:
Fig. 1, is part of a corve wheel with the appliance.
Fig. 2, vertical section through same.

page_text: I secure to the boss or hub H, of a corve wheel for example, and preferably
between two of the arms A, a grease cup C, of cylindrical form, having communi-
cating passages P, made through its base and the hub into the centre hole and thus
to the axle.
The interior of the grease cup is parallel and a screw S, passes through it
vertically and is secured to the wheel at both ends.
Upon the screw I fix a screw threaded nut N, with a flange F, which forms a
plunger or piston fitting the interior of the grease cup C.
The upper part of the nut is made long and of a square, hexagon, or other form
by which it can be readily turned upon the thread of the screw.
When grease is put into the grease cup and the plunger N, is screwed down so
that its flange F, enters and closes the cup the grease is forced down through the
passages P, upon the axle.
I prefer to close the space between the arms A, with a plate B, to prevent
spraggs being thrust between them and thereby causing damage to the appliance,
but leave an opening O, to enable the plunger to be operated from either side of
the wheel.
A ready and simple method of securing the cup and screw with the plunger or
nut to the wheel, is to put the said parts in working order and cast the wheel
upon them as shown.
In some cases I screwthread the inside of the cup C, and correspondingly
screwthread the periphery of the flange F, in which case I substitute a plain pin
for the screw S.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim, is :
1. The improved appliance for lubricating axles of wheels and pullies consisting
of a grease cup C, a plunger or flanged nut N, carried upon a retaining screw S,
secured to the wheel or pulley, and passages from the grease cup to the axle as
herein before described and set forth.
2. In combination with a wheel or pulley, a grease cup having conduits to the
axle, and a screwthreaded interior, a pin passing vertically through its centre, and
through a plunger having corresponding screw threads on its exterior to enable it
to be screwed into the grease cup as hereinbefore described.
Dated the 15th dow of Fab 1907
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.