IMPROVEMENTS IN AXLE BEARINGS FOR TUBS OR WAGGONS USED IN MINING OPERATIONS AND THE LIKE.
Year: 1875

page_text: LETTERS PATENT to William Walker, of Saltburn-by-the-Sea, in the
County of York, for the Invention of "IMPROVEMENTS IN AXLE
BEARINGS FOR TUBS OR WAGGONS USED IN MINING OPERATIONS AND THE
LIKE.
"
PROVISIONAL SPECIFICATION left by the said William Walker at
the Office of the Commissioners of Patents, with his Petition, on
the 12th April 1875.
I, WILLIAM WALKER, of Saltburn-by-the-Sea, in the County of York,
do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN AXLE BEARINGS FOR TUBS OR WAGGONS USED IN MINING OPERATIONS AND THE
LIKE," to be as follows:-
The axle bearings of tubs or waggons used in mining and such like
operations consist usually of a plate fixed to the under framing, having
a central projecting part with a semicircular hollow which fits on to the
journal of the axle, the axle being held in its bearing by a strap passing
round its under side. In this arrangement no provision is made for

page_text: the lubrication of the axle, the lubricant being merely applied
occasionally by hand as near the bearing as the attendant can place it.
Now my present improvements have for their object to insure the
proper lubrication of such bearings. For this purpose I form the before-
mentioned central part of the bearing of a sufficient depth to allow of a
recess or chamber being formed theroin for receiving the lubricating
material, and I form passages extending from the bottom of this
chamber to the surface that rests on the axle, through which the
lubricant passes on to the axle. The lubricant is introduced into the
chamber through an aperture formed in the front face of the bearing
which is closed by a hinged-lid-formed so as to project considerably
from the side of the bearing, so that when the tub or waggon is tilted
or upset the lid will readily fall open so as to uncover the aperture,
and allow the lubricating material to be introduced, and when the
tub or waggon is turned up again the cover will readily fall over the
aperture.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Walker in the Great Seal Patent Office
on the 8th October 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
WALKER, of Saltburn-by-the-Sea, in the County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of April, in the year
of our Lord One thousand cight hundred and seventy-five, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and succes-
sors, give and grant unto me, the said William Walker, Her special
license that I, the said William Walker, my executors, administrators,
and assigns, or such others as I, the said William Walker, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the termi
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 "IMPROVEMENTS IN
AXLE BEARINGS FOR TUBS OR WAGGONS USED IN MINING OPERATIONS AND THE

page_text: "
LIKE, upon the condition (amongst others) that I, the said William
Walker, 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 William Walker, 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 thereof, reference being had to the accom-
panying Sheet of Drawings, and to the figures and letters marked
thereon, that is to say.
The axle bearings of tubs or waggons used in mining and such like
operations consist usually of a plate fixed to the under framing, having
a central projecting part with a semicircular hollow, which fits on to
the journal of the axle, the axle being held in its bearing by a strap
passing round its under side. In this arrangement no provision is made
for the lubrication of the axle, the lubricant being merely applied
occasionally by hand as near the bearing as the attendant can place it.
Now my present improvements have for their object to insure the
proper lubrication of such bearings. For this purpose I form the before-
mentioned central part of the bearing of a sufficient depth to allow of a
recess or chamber being formed therein for receiving the lubricating
material, and I form passages extending from the bottom of this
chamber to the surface that rests on the axle through which the
lubricant passes on to the axle. The lubricant is introduced into the
chamber through an aperture formed in the front face of the bearing,
which is closed by a hinged lid formed so as to project considerably
from the side of the bearing, so that when the tub or waggon is tilted
or upset the lid will readily fall open so as to uncover the aperture
and allow the lubricating material to be introduced, and when the
tub or waggon is turned up again the cover will readily fall over the

page_text: The central part of the bearing is made of such depth as to allow
of a chamber A being formed in it to contain the lubricant which
passes to the surface of the axle by passages B formed in the bottom
of the chamber A. The lubricant is introduced into the chamber A
through a front opening C which is covered by the projecting hinged
lid D.
-
Having thus described the nature of my Invention, and in what
manner the same is to be performed, I would have it understood that
I make no general claim to a receptacle for lubricant applied to an axle
bearing, nor to any construction of such bearing receptacle when the
latter is made-separate from and attached to the former; but I claim,
the use for tubs or waggons employed in mining and like operations of
an axle bearing constructed with a cavity for lubricant communicating
by passages with the surface of the axle, and having a front opening for
supply covered by a projecting hinged lid in the manner and for the
purpose herein set forth.
In witness whereof, I, the said William Walker, have hereunto
set my hand and seal, this First day of October, in the year
of our Lord One thousand eight hundred and seventy-five.