IMPROVEMENTS IN APPARATUSES FOR LETTING OFF WATER FROM AND FOR ADMITTING OIL OR OTHER LUBRICATING MATTER INTO STEAM CYLINDERS
Year: 1861

page_text: LETTERS PATENT to Richard Archibald Brooman, of 166, Fleet Street,
in the City of London, Patent Agent, for the Invention of "IMPROVEMENTS
IN APPARATUSES FOR LETTING OFF WATER FROM AND FOR ADMITTING OIL
OR OTHER LUBRICATING MATTER INTO STEAM CYLINDERS."-A communication
from abroad by Isidore Duballe, of Paris, France.
Sealed the 21st March 1862, and dated the 25th September 1861.
PROVISIONAL SPECIFICATION left by the said Richard Archibald Brooman
at the Office of the Commissioners of Patents, with his Petition,. on the
25th September 1861.
I, RICHARD ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of
London, Patent Agent, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN APPARATUSES FOR LETTING OFF WATER FROM AND FOR
ADMITTING OIL OR OTHER LUBRICATING MATTER INTO STEAM CYLINDERS," (com-
municated to me from abroad by Isidore Duballe, of Paris, France,) to be as
follows:-
These apparatuses may be used together or separately. That for allowing
water to escape from steam cylinders is composed of a tube, screwed on to the
cylinder, opening through another tube into a spherical or other suitably-
shaped chamber, in the bottom of which is a valve, in the form of a plunger;
kept in position to allow of the outlet of water by a spring; the top of the.

page_text: valve is in the form of a cup, in which the tube communicating with the
cylinder dips. The valve is open until the admission of steam on one side or
other of the piston, as the case may be, issuing through the tube and pressing
on the cup closes the valve and keeps it closed until the commencement of the
return stroke, when any water which may have become condensed escapes,
and so on.
The apparatus for admitting lubricating matter consists of a cup closed at
bottom by a screw valve, and communicating, when the valve is opened, with
a chamber into which the tubes lead from the cylinders; one of these tubes,
curved upwards, is of larger bore than the other, which is curved downwards,
and nearly touches the bottom of the chamber. The working is as follows:-
The cup is filled with oil and the screw valve opened, which allows of the
contents entering the chamber, the valve is then screwed down. On steam
being admitted above the piston a portion enters the chamber, and pressing
upon the oil, forces it through the smaller bored tube into the cylinder.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Archibald Brooman in the Great Seal Patent Office
on the 25th March 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of London, Patent
Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of September, in the 'year of our'
Lord One thousand eight hundred and sixty-one, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Richard Archibald Brooman, Her special licence that I, the said Richard
Archibald Brooman, my executors, administrators, and assigns, or such others
as I, the said Richard Archibald Brooman, 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 Inven-
tion for "IMPROVEMENTS IN APPARATUSES FOR LETTING OFF WATER FROM, AND FOR
ADMITTING OIL OR OTHER LUBRICATING MATTER INTO STEAM CYLINDERS,"
munication from abroad by Isidore Duballe, of Paris, France,) upon the
condition (amongst others) that I, the said Richard Archibald Brooman, my

page_text: 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
5 within six calendar months next and immediately after the date of the said
etters Patent.
NOW KNOW YE, that I, the said Richard Archibald Brooman, 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 Drawings hereunto
annexed, that is to say :-
The apparatus for allowing water to escape from steam cylinders is composed
of a tube, screwed on to the cylinder, opening through another tube into a
spherical or other suitably-shaped chamber, in the bottom of which is a valve,
in the form of a plunger, kept in position to allow of the outlet of water by a
spring; the top of the valve is in the form of a cup, in which the tube
communicating with the cylinder dips.
Figure 1 of the accompanying Drawings is a vertical section, and Figure 2
is a plan of this apparatus for letting off water from steam cylinders; Figure 3
is a plan of the under side of the same; and Figure 4 is a horizontal section;
through the line A, B, of Figure 1.
a is the chamber, made with a screw 6 at top for attaching it to a steam
cylinder; c is an aperture, into which the tube d is screwed, extending to near
the bottom of the chamber a; e is a stopper screwing into the bottom of the
chamber; f is a valve in the stopper, the upper end of which is capped, and
into which the tube d dips. The valve rod is made, by preference, triangular,
so that except when the cup rests, or is pressed by the steam on its seat, there
are passages between it and the stopper e leading to the atmosphere, as shown
in Figure 4; i is a spring in the valve f connected to a rod h, which latter is
connected to a cross, bar supported by a flange j formed on the lower part of
the stopper e.
An apparatus of this description is, by preference, placed at
each end of the cylinder, in order that water may be effectually withdrawn
from both sides of the piston. The action is as follows:-The valve f is open
until the admission of steam on one side or other of the piston, as the case
may be, issuing through the tube d and pressing on the cup, closes the valve
and keeps it closed until the commencement of the return stroke, when any
water which may have become condensed escapes, and so on.
The apparatus for admitting lubricating matter consists of a cup closed at
bottom by a screw valve and communicating, when the valve is opened, with

page_text: a chamber into which two tubes lead from the cylinder; one of these tubes,
curved upwards, is of larger bore than the other, which is curved downwards,
and nearly touches the bottom of the chamber.
Figure 5 is a view, in sectioual elevation, of this apparatus, and Figure 6
is an end view of the same, showing the steam and lubricating orifices; lis
the cup with the valve m at bottom; n is the chamber. The valve is kept
closed by a screw o turned by a key p; q, r, are tubes in the chamber n;
the tube is about twice the diameter of the tuber; s is a lateral continuation
of the chamber n, which terminates in a screw t, by which it is connected to
the cylinder. The working is as follows:-The cup is filled with oil and the
screw valve m opened, which allows of the contents entering the chamber n;
the valve m is then screwed down. On steam being admitted above the piston
a portion enters the chamber by the tube q, and pressing upon the oil forces it
through the smaller bored tuber into the cylinder.
l
The apparatuses just described may be combined and fitted to steam cylinders,
as shown in Figure 7, where the letters of reference correspond with those
used to denote the various parts in the previous Figures in so far as those
parts are seen; or each apparatus may be used separately.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim,-
First, the apparatus for letting off water from steam cylinders, constructed
and acting substantially in manner herein-before described with reference to
Figures 1, 2, 3, and 4, of the accompanying Drawings.
Second, the apparatus for admitting oil or other lubricating matter. into
steam cylinders constructed and acting substantially in manner herein-before
described with reference to Figures 5 and 6 of the accompanying Drawings.
In witness whereof, I, the said Richard Archibald Brooman, have
hereunto set my hand and seal, this Twenty-fifth day of March, One
thousand eight hundred and sixty-two.
R. A. BROOMAN. (L.S.)