IMPROVE- MENTS IN HYDRAULIC VALVES FOR WORKING GAS PURIFIERS
Year: 1864

page_text: LETTERS PATENT to James Wilson, of No. 2, Royal Exchange Buildings,
in the City of London, Civil Engineer, for the Invention of "IMPROVE-
MENTS IN HYDRAULIC VALVES FOR WORKING GAS PURIFIERS."
Sealed the 12th April 1864, and dated the 21st January 1864.
PROVISIONAL SPECIFICATION left by the said James Wilson at the
Office of the Commissioners of Patents, with his Petition, on the
21st January 1864.
I, JAMES WILSON, of No. 2, Royal Exchange Buildings, in the City of
London, Civil Engineer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN HYDRAULIC VALVES FOR WORKING GAS PURIFIERS," to be
as follows, that is to say:-
My Invention consists in forming the upper or holder portion of the
hydraulic valve as shewn in the accompanying Drawings, by which I am able
to work 4 purifiers at one and the same time, or the holder may be turned
and changed to any of the four purifiers in turn, so that all and each can be
entered by the gas alternately as wished, either from the upper or under side
of each.
DESCRIPTION OF THE DRAWINGS.
Sheets 1 and 4 shew the valve set to work all the four purifiers at one
and the same time. a, a, a, a, outer side of the holder, which I divide into
6 divisions all reaching down to o, the division 6 being formed as shewn, thus
allowing the main inlet pipe h to have free connexion with the inlet pipe = to

page_text: purifier No. 1; from this the gas passes by outlet pipe y to division c of valve,
and passes by inlet pipe x to purifier 2; the gas again passes out by outlet
pipe w into division of valve d, through inlet pipe v into purifier 3; again by
outlet pipe a into division of valve e, through inlet pipe t into purifier 4, out
by outlet pipes, and away by main outlet pipe r. The other two divisions f, 9,
of upper or holder portion of valve I form as shewn in free and open com-
munication with main outlet pipe r. Sheet 2 shows the upper portion or
holder of valve set to work only 3 purifiers, viz., purifiers 1, 2, & 3. The
holder being raised and dropped into the position shewn causes the gas to
pass out of No. 3 purifier by outlet pipe g into body of valve in open communi-
cation with main outlet pipe r, thus working only 3 purifiers. Sheet 3 shews
the holder or upper portion of valve set to work one purifier only, viz.,
purifier 4, but in this case what was before the inlet becomes the outlet
pipe, and the outlet the inlet pipe. By this arrangement I not only work one
purifier, but produce thereby a reverse current of gas through the purifiers 1,
2, 3, & 4, as wished.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Wilson in the Great Seal Patent Office on the
20th July 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
WILSON, of No. 2, Royal Exchange B3
Exchange Bugs, in the City of London, Civil
Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of January, in the year of our
Lord One thousand eight hundred and sixty-four, in the 27th year of
Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said James Wilson, Her special license that I, the said
James Wilson, my executors, administrators, and assigns, or such others
as I, the said James Wilson, my executors, administrators, or assigns,
should at any time agree with, and no others, from time to time and 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 IN HYDRAULIC VALVES FOR WORKING GAS PURIFIERS,"
upon the condition (amongst others) that I, the said James Wilson, my
executors or administrators, by an instrument in writing under my hand and

page_text: seal, or under the hand and seal of one of them, 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 James Wilson, 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:
My Invention consists in so disposing the partitions in the upper or holder
portion of the hydraulic valve, and making them of such a form that four
purifiers surrounding the valves may be worked at one and the same time,
whilst by the present arrangement it is only possible to work three purifiers,
and by my said arrangement of the divisions or partitions of the upper or
holder portion of the hydraulic valve it can also be set so as to work three
purifiers, or, if required, one purifier only, and the gasholder may be turned
to any of the purifiers as required, so that all four or any three or any one of
them may be worked alternately as wished.
I will now proceed to describe my said Invention by reference to the
accompanying Drawing, in the several Figures of which the same letters of
reference indicate similar parts.
DESCRIPTION OF THE DRAWING.
Fig. 1, plan showing the valve set to work 4 purifiers; Fig. 2, section on
line A, B, of Fig. 1; Fig. 3, plan showing the valve set to work 3 purifiers;
Fig. 4, plan showing the valve set to work 1 purifier; Fig. 5, plan on a larger
scale showing the form of the divisions of the upper or holder portion of the
valve.
Fig. 1 shows the valve set to work the 4 purifiers Nos. 1, 2, 3, 4.
a, a, a, the outer circle of the holder or upper portion of the valve, which is
divided into 6 divisions, b, c, d, e, f, g, all reaching down to O (Fig. 2); it will
be seen that the main inlet pipe has free communication with the inlet pipe z,
so that the gas can pass from the main inlet pipe h into purifier No. 1, and
out by the pipe y to division c of valve; then into purifier No. 2 by the inlet
pipe x, and out into division d of valve by outlet pipe w; it then passes by
inlet pipe v into purifier No. 3, again by outlet pipe u into division of valve f,
thence through inlet pipe t into purifier No. 4, and out by outlet pipe 8, which
is in communication with main outlet pipe r, by which it is carried away. To
work three purifiers the upper or holder portion of the valve must be raised

page_text: and dropped into the position shown in Fig. 3, when the gas will pass through
purifiers Nos. 1, 2, & 3, as before, but in this case the outlet pipe u of
purifier No. 3 being in open communication with the main outlet pipe r,
the gas passes out by the latter without being able to enter purifier No. 4.
If the upper portion of the valve be placed as shown in Fig. 4, only one
purifier will be worked, viz., purifier No. 4, but in this case what was before
the outlet pipe of the purifier becomes the inlet pipe, and vice versa, by
this means a reverse current of gas is obtained through the purifier, in addition
to one only being worked. By this form of holder, therefore, I am enabled to
work all the 4 purifiers either together or separately, or any three of them
alternately as wished.
And having now described the nature of my said Invention, and the best
means I am acquainted with for carrying the same into effect, I wish it to
be understood that I do not confine myself to the precise details of construction,
but what I claim, and wish to be secured by the herein-before in part recited
Letters Patent, is, the arrangement and construction of the divisions
of the upper or holder portion of hydraulic valves for working four or a
smaller number of gas purifiers, as herein-before described and shown in the
accompanying Drawing.
In witness whereof, I, the said James Wilson, have hereunto set my
hand and seal, this Nineteenth day of July, One thousand eight
hundred and sixty-four.
JAMES WILSON.
(L.S.)