IMPROVEMENTS IN COCKS AND APPARATUS FOR DRAWING-OFF AND REGULATING THE FLOW OR FLUIDS
Year: 1864

page_text: LETTERS PATENT to James Adams, of No. 6, Archer Street, Great
Windmill Street, in the County of Middlesex, for the Invention of
"IMPROVEMENTS IN COCKS AND APPARATUS FOR DRAWING-OFF AND REGULATING
THE FLOW OR FLUIDS"
Sealed the 28th October 1864, and dated the 24th May 1864.
PROVISIONAL SPECIFICATION left by the said James Adams at the Office
of the Commissioners of Patents, with his Petition, on the 24th May
1864.
I, JAMES ADAMS, of No. 6, Archer Street, Great Windmill Street, in the
County of Middlesex, do hereby declare the nature of the Invention for
"IMPROVEMENTS IN COCKS AND APPARATUS FOR DRAWING-OFF AND REGULATING THE
FLOW OF FLUIDS," to be as follows:-
In constructing a cock or apparatus according to this Invention the valve
or plug is of cylindrical form, fitting truly in a cylindrical chamber, yet capable
of being slid therein so as to cover and uncover the passages situated at
opposite sides of the chamber. The plug or valve is divided into two parts,
and a spring is introduced between such two parts tending at all times to
separate them, by which the halves or parts are pressed respectively against
the inlet and the outlet passages of the cylindrical chamber within which the
valve or plug slides. The plug or valve has a spindle or stem fixed to it,
which when desired works though a stuffing box; or motion may be given to

page_text: the spindle of the valve or plug by acting on it by an axis passed through
a stuffing box or by other convenient means. Although it is preferred that
the valve or plug should be cylindrical and work in a cylindrical chamber, it
may have two flat or even angular faces working in a corresponding form or
section of chamber, the two parts of the valve or plug being, as above
explained, acted on by a spring between them, tending to drive the two faces
towards the two opposite fluid passages. In like manner may cocks or appa-
ratus with three or more fluid passages be constructed, the plug or valve being
modified accordingly.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Adams in the Great Seal Patent Office on the
24th November 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
ADAMS, of No. 6, Archer Street, Great Windmill Street, in the County of
Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of May, in the year of our Lord
One thousand eight hundred and sixty-four, in the twenty-seventh year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said James Adams, Her special licence that I, the said James Adams, my exe-
cutors, administrators, and assigns, or such others as I, the said James Adams,
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 IN COCKS AND
APPARATUS FOR DRAWING-OFF AND REGULATING THE FLOW OF FLUIDS," upon the
condition (amongst others) that I, the said James Adams, 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 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 Adams, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-

page_text: ,formed, to be particularly described and ascertained in and by the following
.statement thereof, that is to say:-
In constructing a cock or apparatus according to this Invention the valve
or plug is of cylindrical form, fitting truly in a cylindrical chamber, yet
capable of being slid therein so as to cover and uncover the passages situated
at opposite sides of the chamber. The plug or valve is divided into two parts,
and a spring is introduced between such two parts, tending at all times to
separate them, by which the halves or parts are pressed respectively against the
inlet and the outlet passages of the cylindrical chamber within which the valve
or plug slides. The plug or valve has a spindle or stem fixed to it, which when
desired works through a stuffing box; or motion may be given to the spindle
of the valve or plug by acting on it by an axis passed through a stuffing box
or by other convenient means. Although it is preferred that the valve or plug
should be cylindrical, and work in a cylindrical chamber, it may have two flat
or even angular faces working in a corresponding form or section of chamber,
the two parts of the valve or plug being, as above explained, acted on by a
spring between them, tending to drive the two faces towards the two opposite
fluid passages. In like manner may cocks or apparatus with three or more
fluid passages be constructed, the plug or valve being modified accordingly.
Having thus stated the nature of my Invention, I will proceed to describe
more fully the manner of performing the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side view, and Figure 2 a section of a cock constructed
according to this Invention; Figure 3 is a transverse section of the same taken
through the line A, B, Figure 2. In this arrangement the plug a is of a
cylindrical form, and fits within a cylindrical chamber b, on opposite sides of
which are situated the inlet and outlet passages. The plug a is, as is shown
at Figures 2 and 3, divided into two parts, and between the parts is a spring c,
which tends to separate them, and thus the halves or parts are respectively
pressed against the inlet and outlet passages; the plug a is connected by the
pin d to the stem or spindle e, which works through the stuffing box f; this
spindle, in the arrangement shewn in the Drawings, receives motion from the
lever g; the spindle may, however, receive motion in any suitable manner.
In Figures 2 and 3 the plug a is shewn to be in such a position as to close
the inlet and outlet passages; to uncover these passages the plug a is raised
by turning the lever g. Figures 4, 5, and 6 show sections of a cock in which
the sliding plug a is formed with two opposite flat faces working in a corre-
sponding form of chamber. The plug a is, as in the former arrangement,

page_text: divided into two parts, and the parts are acted on. by springs c, c, as is shown,
so as to force the parts towards the inlet and outlet passages; the plug a in
this arrangement is shewn to be connected to a rod having a rack d formed
upon it, into which a section of a toothed wheel on the axis e gears; this axis
passes through a stuffing box f, as is shewn at Figure 5. By turning the
axis e the plug a can be slid in its chamber and caused to cover the inlet and
outlet passages, or the plug may be moved into the position shewn at Figures
4 and 5, when both the passages are left uncovered.
In witness whereof, I, the said James Adams, have hereunto set my
hand and seal, this Twenty-second day of November, in the year of
our Lord One thousand eight hundred and sixty-four.
JA. ADAMS. (LS.)