IMPROVEMENTS IN. LUBRICATING REVOLVING SURFACES
Year: 1862

page_text: LETTERS PATENT to John Hetherington, of Manchester, in the County
of Lancaster, Machine Maker, for the Invention of "IMPROVEMENTS IN.
LUBRICATING REVOLVING SURFACES."
Sealed the 9th December 1862, and dated the 11th June 1862.
PROVISIONAL SPECIFICATION left by the said John Hetherington at
the Office of the Commissioners of Patents, with his Petition, on the
11th June 1862.
I, JOHN HETHERINGTON, of Manchester, in the County of Lancaster,
Machine Maker, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN LUBRICATING REVOLVING SURFACES," to be as follows:-
My Invention refers to an arrangement in which the lubricating material is
carried within a chamber formed in the revolving part, and consists in arrange-
ments whereby I am enabled to renew the supply without the removal of such
revolving part. For this purpose I adapt thereto a tube which revolves with
it and projects inward towards the centre of motion, so that the surface of the
lubricating material continues below the orifice thereof. Or, according to
another plan, I form a communication with the chamber through the shaft,
which communication is capable of being closed by a screw plug or equivalent
apparatus.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Hetherington in the Great Seal Patent Office on the
11th December 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
HETHERINGTON, of Manchester, in the County of Lancaster, Machine Maker,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of June, One thousand eight hundred
and sixty-two, in the twenty-fifth year of Her reign, did, for Herself, Her
heirs and successors, give and grant unto me, the said John Hetherington,
Her special license that I, the said John Hetherington, my executors, adminis-
trators, and assigns, or such others as I, the said John Hetherington, my
executors, administrators, and assigns, should at any time agree with, and no
others, froin time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, excrcise, and vend, within
the United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "IMPROVEMENTS IN LUBRICATING REVOLVING
SURFACES," upon the condition, amongst others, that I, the said John Hether-
ington, by an instrument in writing under my hand and seal, 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 John Hetherington, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement and accompanying Drawings (that is to say):-
My Invention refers to an arrangement in which the lubricating material is
carried within a chamber formed in the revolving part, and consists in arrange-
ments whereby I am enabled to renew the supply without the removal of such
revolving part. For this purpose I adapt thereto a tube which revolves with
it and projects inward towards the centre of motion, so that the surface of the
lubricating material is kept below the orifice thereof. Or, according to another
plan, I form a communication with the chamber through the shaft, which
communication is capable of being closed by a screw plug or equivalent
apparatus.
In the accompanying Drawing Fig. 1 represents in section an application of
the first of these arrangements. A fixed shaft is shewn at a, upon which is

page_text: mounted a toothed wheel b, so as to run loosely thereon between two collars
c, d. Within the boss of this wheel is formed an annular chamber e, projecting
into which is a tube f, and extending to within a short distance of the shaft a.
Through this tube the lubricating material is applied, and it then falls into the
chamber e, the sides of which become coated with it by the revolution of the
wheel, and when the motion thereof is arrested a sufficient quantity of the
fluid will trickle downward, so as to effect the desired lubrication of the shaft ;
but as the tube f will always extend beyond the bulk of the said fluid, which
accumulates at the bottom of the chamber e, it cannot escape by the orifice
through which it has been introduced. I have described the improvement as
applied to a toothed wheel, but the arrangement is of course applicable to
pullies or other revolving surfaces which are intended to carry a supply of
lubricating material.
Fig. 2 represents in section my second arrangement. A pulley g is mounted
so as to run between two collars upon a fixed shaft h. This pulley is provided
with an annular chamber t, which communicates by a passage k with a channel
formed in the shaft h. The end of this chamber is stopped by a screw plug m,
through which holes n, o, are drilled, and through them the lubricating
material may be introduced so as to supply the revolving chamber t.
Having thus described and ascertained the nature of my said Invention, and
the manner in which the same is to be performed, I desire it to be understood
that I claim as secured to me under the above in part recited Letters Patent,
the methods, substantially as described, for supplying lubricating material to
chambers formed in pullies, wheels, or other revolving apparatus.
In witness whereof, I, the said John Hetherington, have hereunto set
my hand and seal, this Tenth day of December, in the year of our
Lord One thousand eight hundred and sixty-two.
TOUN TREDINGTON
JOHN UREDINGTON
INGTON. (L.B.)