IMPROVEMENTS APPLICABLE TO LUBRICATING THE BEARINGS OF SHAFTS AND OTHER RUBBING SURFACES OF MACHINERY
Year: 1871

page_text: LETTERS PATENT to Thomas Alexander, of Salisbury, in the County
of Wilts, Engineer, for the Invention of "IMPROVEMENTS APPLICABLE TO
LUBRICATING THE BEARINGS OF SHAFTS AND OTHER RUBBING SURFACES OF
MACHINERY,"
Scaled the 16th January 1872, and dated the 31st October 1871.
PROVISIONAL SPECIFICATION left by the said Thomas Alexander at
the Office of the Commissioners of Patents, with his Petition, on
the 31st October 1871.
I, THOMAS ALEXANDER, of Salisbury, in the County of Wilts, En-
gineer, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS APPLICABLE TO LUBRICATING THE BEARINGS OF SHAFTS AND OTHER RUBBING
SURFACES OF MACHINERY," to be as follows:-
I form on one of the rubbing surfaces a channel or channels at right
angles to the direction in which the one rubbing surface moves, and in
length extending nearly to the outer edge of such surface on each side,
such channel to be filled with fibrous or other packings, the object being

page_text: to collect the oil used in lubricating, and by the packing to distribute
it to the rubbing surface.
In the case of a horizontal shaft the top bearing will have one or
more channels in or near the centre with grooves leading from them to
lubricate the shaft and to convey the oil to the bottom bearing.
In cases where the weight is against the top bearing holes are to be
bored in the channels through the bearing, the object of which holes is
to allow the dirty oil to pass through. The bottom bearing to have one
or more channels with grooves connecting them and leading to the
upper edges of the bearing, such upper edges being bevilled to within a
short distance of either end.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Alexander in the Great Seal Patent Office
on the 30th April 1872.
TO ALL TO WHOM THESE PRESENTS. SHALL COME, I, TпOMAS
ALEXANDER, of Salisbury, in the County of Wilts, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirty-first day of October, in the year
of our Lord One thousand eight hundred and seventy-one, in the thirty-
fifth year of Her reign, did for Herself, Her heirs and successors, give
and grant unto me, the said Thomas Alexander, Her special licence,
that I, the said Thomas Alexander, my executors, administrators, and
assigns, or such others as I, the said Thomas Alexander, 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 term
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
APPLICABLE TO LUBRICATING THE BEARINGS OF SHAFTS AND OTHER RUBBING
SULFACES OF MACHINERY," upon the condition (amongst others) that
I, the said Thomas Alexander, 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

page_text: to be filed in the Great Scal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Thomas Alexander, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement:-
I form on one of the rubbing surfaces a channel or channels at right
angles to the direction in which the one rubbing surface moves, and in
length extending nearly to the outer edge of such surface on each side,
such channel to be filled with fibrous or other packing, the object being
to collect the oil used in lubricating, and by the packing to distributo
it to the rubbing surface.
In the case of a horizontal shaft the top bearing will have one or more
channels in or near the centre with grooves leading from them to
lubricate the shaft and to convey the oil to the bottom bearing.
In cases where the weight is against the top bearing holes are to be
bored in the channels through the bearing, the object of these holes is
to allow the dirty oil to pass through. The bottom bearing to have one
or more channels with grooves connecting same and leading to the
upper edges of the bearing, such upper edges being bevilled to within
a short distance of either end.
Having thus far described the said Invention, the nature whereof is
hercin-before particularly described and ascertained, I will now refer
to the accompanying Drawings, so as with the aid of the foregoing
statements to particularly describe and ascertain in what manner the
said Invention is to be performed or carried out in practice.
DESCRIPTION OF THE DRAWINGS.
Fig. 1, top half of a bearing (inside view); Fig. 2, bottom half of a
bearing (inside view).
In said Figures the lines marked A are channels filled with fibrous or
other packing, the object as herein-before described of such channels
being to collect the oil used in lubricating, and the object of the packing
to distribute it to the rubbing-surface. The lines marked C are grooves,
1.
MARWAD the sil

page_text: to within a short distance of either end, the object of which is to
prevent the oil from escaping between the two bearings.
This Drawing applies only to bearings in an horizontal position, and
channels will be required more or less according to size of bearing.
The same principle with due regard to difference of position may be
applied to vertical bearings.
Having now particularly. described and ascertained the nature and
object of my Invention, and in what manner the same may be performed
or carried out in practice, I hereby declare that I claim, the Invention
the nature whereof is herein-before particularly described in the outset
of this Specification, it being understood that I do not claim (nor do
I limit myself to the use of) the mere details of construction shown by
the Drawings) and described with reference thereto, the same being
herein-before mentioned simply as constituent parts of the said Invention
as herein-before described.
In witness whereof, I, the said Thomas Alexander, have hereunto
set my hand and seal, this Twenty-seventh day of April, in the
year of our Lord One thousand eight hundred and seventy-two.
Witness,
JOHN C. BOTHAMS,
Salisbury.
THOMAS ALEXANDER. (L.S.)