Improvements in Lubricating the Axles of Pit Tubs or Wagons.
Year: 1897

page_text: Date of Application, 4th Dec., 1897
Complete Specification Left, 1st Feb., 1898-Accepted, 5th Mar., 1898
PROVISIONAL SPECIFICATION.
Improvements in Lubricating the Axles of Pit Tubs or Wagons.
I, WILLIAM THOMPSON, of East End, Prudhoe-on-Tyne, Heap Keeper, Prudhoe
Colliery, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in lubricating the axles of pit tubs or
small wagons used for conveying coals or ore from the low seams to the bank, and
is designed to obviate the wasteful and inefficient methods hitherto in use.
For this purpose I provide a box or tank of any suitable shape and constructed
of wood or metal, which I fix in the frame of the tub or wagon, and to the bottom
of the said box I connect small pipes preferably one for each axle, which pipes are
"guttered" into or fitted to, the frame of the tub so that their lower ends are in
contact, or nearly so, with the said axles. Instead of this arrangement the tanks
may be connected to the cup above the axle by a hole through the role, or side piece
of the frame. Pipes are fitted to the frame for refilling the tanks. These pipes
project slightly and are protected by screw caps to prevent waste.
The box is filled with a suitable oil or lubricant which as the axle revolves, is fed
down in small quantities on to the "cod" or bearing in which the axle revolves,
by means of the aforesaid pipes. The lubricant I propose to employ is composed
of three parts of coal and one part of fish-oil mixed thoroughly together.
I also provide a clasp for the axle consisting of a bar or flute bent into U shape
at the middle. The ends are bolted to the role and the axle passes through the
U part in which a cup is fitted for the purpose of catching any waste lubricant.
By this means the axles are automatically lubricated for a considerable length
of time thus obviating the necessity of greasing them for each journey by the
mechanical devices heretofore adopted, and which grease is cleaned or scraped off
on to the road after a few revolutions of the axles.
The lubricating agent I prefer to employ is made from tar, tar and oil, or oil
alone which will be found to be cheaper and more efficient than the grease at
present used for the purpose.
י
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of Dambor 1007
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.

page_text: improvements in Lubricating the Axies of Pit Tubs or Wagons.
I, WILLIAM THOMPSON, of East End, Prudhoe-on-Tyne, Heap Keeper, Prudhoe
Colliery, 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 to improvements in lubricating the axles of pit tubs or
small wagons used for conveying coals or ore from the low seams to the bank, and
is designed to obviate the wasteful and inefficient methods hitherto in use.
<<
For this purpose I provide a box or tank of any suitable shape and constructed
of wood or metal which I fix in the frame of the tub or wagon and to the bottom
of the said box I connect small pipes preferably one for each axle, which pipes are
'guttered" into or fitted to the frame of the tub so that their lower ends are in
contact, or nearly so, with the said axles. Instead of this arrangement the tanks
may be connected to the cup above the axle by a hole through the sole, or side piece
of the frame. Pipes are fitted to the frame for refilling the tanks. These pipes
project slightly and are protected by screw caps to prevent waste.
The box is filled with a suitable oil or lubricant which as the axle revolves, is fed
down in small quantities on to the "cod" or bearing in which the axle revolves,
by means of the aforesaid pipes.
I also provide a clasp for the axle consisting of a bar or flute bent into Ų shape
at the middle. The ends are boltell to the sole and the axle passes through the
U part in which a cup is fitted for the purpose of catching any waste lubricant.
In the accompanying sheet of illustrated drawings Fig. 1 is a plan of a pit tub
or wagon fitted with lubricating devices according to this invention.
Fig. 2 is an elevation showing the arrangement as fitted to one axle and Fig. 3
is a vertical section of the bearing.
Boxes or tanks a a are fitted in the frame of the tub or wagon, below the bottom
thereof. As shown they are arranged extending nearly the whole length, and upon
either side of the central stay. The bearings 6 are fitted into the side pieces c of
the frame and are formed with troughs or cups d leading to small holes c. It
will readily be seen that as the axle revolves the lubricant passes from the
tanks a to the troughs or cups and through the holes e to the bearing surfaces
thus lubricating the axles. In order to prevent waste of lubricant, a cup f formed
as shown of a bent strip of metal f¹ having side cheeks fa suitably formed on or
attached thereto, is bolted to the frame below the bearings b.
1
The bearings b and cups f are attached to the frame by means of bolts g or by
other suitable means. For practical purposes projections h are formed on the bear-
ings and contact with the sides of the tub or wagon.
Pipes provided with screw caps are fitted to the tanks a for filling with
lubricant.
•
By this means the axles are automatically lubricated for a considerable length
of time thus obviating the necessity of greasing them for each journey by the
mechanical devices heretofore adopted and which grease is cleaned or scraped off on
to the road after a few revolutions of the axles.
The lubricating agent I prefer to employ is made from tar, tar and oil, or oil
alone which will be found to be cheaper and more efficient than the grease at
present used for the purpose. A suitable proportion will be three parts of coal tar
and one part of fish-oil mixed thoroughly together.

page_text: 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) Means for lubricating the axles of pit tubs or wagons, consisting of tanks
suitably arranged upon the vehicle for containing the lubricant troughs in com-
munication with said tanks formed in the bearings, and leading to holes or
passages by which the lubricant passes to the bearing surfaces of the axles, and
a cup for receiving waste lubricant substantially as described.
(2) Means for lubricating the axles of pit tubs or wagons, consisting of tanks
arranged underneath the vehicle for containing the lubricant and provided with
pipes for filling same, troughs in communication with said tanks formed in the
bearings which are fitted in the side pieces of the frame of the vehicle, said troughs
leading to small holes or passages by which the lubricant passes to the bearing
surfaces of the axles and a U shaped cup fitted below the axles and attached to
the bearings for receiving waste lubricant substantially as described.
(3) Means for lubricating the axles of pit tubs or wagons substantially as
described with reference to the drawings.
(4) A lubricant for lubricating the axles of pit tubs or wagons consisting of
three parts coal tar and one part of fish-oil substantially as described.
Dated this 21st day of January 1898.
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.