IMPROVE- MENTS IN SELF-ACTING OR AUTOMATIC STEAM LUBRICATORS, IMPERMEATORS, OR GREASERS."
Year: 1880

page_text: LETTERS PATENT to Charles Christopher Braithwaite, of 35, King William
Street, in the City of London, Engineer, for an Invention of "IMPROVE-
MENTS IN SELF-ACTING OR AUTOMATIC STEAM LUBRICATORS, IMPERMEATORS,
OR GREASERS."
PROVISIONAL SPECIFICATION left by the said Charles Christopher
Braithwaite at the Office of the Commissioners of Patents on the 21st
September 1880.
CHARLES CHRISTOPHER BRAITHWAITE, of 35, King William Street, in the City
of London, Engineer. "IMPROVEMENTS IN SELF-ACTING OR AUTOMATIC STEAM
LUBRICATORS, IMPERMEATORS, OR GREASERS."
My Invention consists of improvements in lubricators, impermeators, or greasers,
which are self-acting in their working, and gives a continuous and regular supply
of oil or other lubricants to the steam as it leaves the boiler, to the valves, cylinders,
pipes, and other parts of the steam engine or other machines having steam for their
motive power under pressure or vacuum. By this means the whole of the steam
used in steam engines and other machines becomes impermeated or mixed with oil
or other lubricants.
For this purpose I use or employ a reservoir of any size or shape, cast in brass or
other metals, for holding the lubricating material, such as oil, grease, or other
lubricants. Immediately under the reservoir the lubricator is formed to receive a
taper or parallel cock or valve, which contains a hole or cavity by which steam is
admitted into and condensed out of the said reservoir. By a slight turn of the
cock or valve, which is actuated by means of a handle or hand wheel, and at the
same time unscrewing a winged plug or valve on the top of the reservoir a few
turns to admit air into the said reservoir, the condensed steam will flow out; when
the cock or valve is turned to stop the exhaust of condensed steam, the oil or
lubricant is put in before screwing down the winged plug or valve on the top of the
reservoir. In the centre of the reservoir is fixed a small pipe with an adjustable
perforated cap thereon, through which the steam is admitted into the said reservoir
from the boiler in whatever quantities as may be required. The action of the
steam in the reservoir displaces the oil or lubricant by condensation, which causes
the oil or lubricant to float, thereby raising a proportionate quantity of the lubricant
to the top of the reservoir and down the pipe in the centre of the lubricator; this
action goes on all the time the machinery is in motion, or until the whole of the
lubricant is used. 1 purpose fixing the lubricator by means of a flange or threaded
projection at the lower end of the same.

page_text: at c. Steam is admitted through an opening d at the lower end of the lubricator,
having a small outlet into the opening a in the cock D to the pipe E, and through
the perforated hexagon cap F, thus discharging steam into the vessel A, which
causes it to mix with the oil or lubricant, and thereby becomes impermeated. When
condensation takes place, the lubricant, being much lighter than water, necessarily
floats, and finds its way down the same passage in which the steam had entered the
vessel A, thus being carried to the valves, cylinders, and spindles of the steam
engine or other machinery by the pressure of the steam which does not enter the
lubricator.
The condensation of the steam in the bottom of the vessel A is drawn off by
means of the opening a in the cock D, being moved to connect openings in the
bottom of the vessel A and c in the nozzle H, thus removing the whole of the
condensation.
с
Figures 5 and 6 respectively shew plan and vertical section of the lubricator
attached to the smoko box of a locomotivo engine; I is a solid stud cast on the
vessel A, and fitted with a nut J for connecting the lubricator to the side plate K
of the smoke box; L is a pipe cast in the bottom of the vessel A, and not screwed,
as shewn in Figure 2.
Having now described my Invention of "Improvements in Self-acting or
Automatic Steam Lubricators, Impermeators, or Greasers," and having explained
the manner of carrying the same into effect, I wish it to be understood that under
the above in part recited Letters Patent I claim the general arrangement and
combination of the several parts, substantially as above described and shewn in the
Drawings.
In witness whereof, I, the said Charlos Christopher Braithwaite, have hereunto
set my hand and seal, this Twenty first day of March, in the year of our
Lord One thousand eight hundred and eighty one.
Witness,
CHARLES CHRISTOPHER BRAITHWAITE. (L.S.)
JOHN WADDINGTON,
Wortley Villa,
West Hill,
Sydenham, S.E,