AN on Tarnowan DENG VAT
Year: 1867

page_text: LETTERS PATENT to Ivie Mackie McGeorge, of Commune Newry, Ireland,
and Alfred Paul, of 33, Clevedon Street, Liverpool, for the Invention of
“AN on Tarnowan DENG VAT"
Sealed the 31st December 1867, and dated the 8th July 1867.
PROVISIONAL SPECIFICATION left by the said Ivie Mackie McGeorge
and Alfred Paul at the Office of the Commissioners of Patents, with
their Petition, on the 8th July 1867.
We, IVIE MACKIE M°GEORGE, of Commune Newry, Ireland, and ALFRED
PAUL, of 83, Clevedon Street, Liverpool, do hereby declare the nature of
the said Invention for "A NEW OR IMPROVED PLUG VALVE," to be as
follows:-
This Invention relates to an appliance for regulating the flow of liquids or
fluids, such as steam, water, gas, or spirits through pipes, and for entirely
stopping or preventing such flow as circumstances may require. The shell
resembles that of an ordinary straight or through-way cock, with the exception
of the mouth, which is supplied with a lid containing a stuffing box screwed
or otherwise fastened to said shell, and through which stuffing box a spindle,
which we denominate a valve spindle, passes, having a screw cut upon it, by
means of which the valve is opened and shut, but instead of the plug or valve
being made to rotate to open and shut it is made to move in a direction
parallel to its axis (which may be a vertical, horizontal, or diagonal direction,

page_text: depending upon the position in which it should be fixed) by the screwed part
of the valve spindle moving in a corresponding screw cut in the plug or valve
or the lid before mentioned or other suitable part, or the said screwed part
of the valve spindle may be outside the shell altogether, and worked by a
movable nut. It will be obvious that a screw for opening and shutting the
valve is not absolutely necessary, as the valve may be moved by any direct
force acting upon a plain spindle. The plug or valve resembles the plug of
an ordinary cock, and may be made with or without passages (as the case may
be (passages being required when necessary to reduce the travel of the plug);
the plug or valve may also be made either entirely of metal or other suitable
material, or may be faced with india-rubber, vulcanite, gutta percha, and such
like substances.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Ivie Mackie McGeorge and Alfred Paul in the Great Seal
Patent Office on the 7th January 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, IVIE
MACKIE MCGEORGE, of Conimune Newry, Ireland, and ALFRED PAUL, of 33,
Clevedon Street, Liverpool, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eighth day of July, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirty-first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said Ivie Mackie McGeorge and Alfred Paul, Her special licence that
we, the said Ivie Mackie McGeorge and Alfred Paul, our executors,
administrators, and assigns, or such others as we, the said Ivie Mackie
McGeorge and Alfred Paul, our 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 "A NEW
OR IMPROVED PLUG VALVE," upon the condition (amongst others) that we,
the said Ivie Mackie McGeorge and Alfred Paul, our executors or ad-
ministrators, by an instrument in writing under our, 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

page_text: six calendar months next and iminediately after the date of the said Letters
Patent.
NOW KNOW YE, that we, the sail Ivie Mackie McGeorge and Alfred
Paul, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This Invention relates to an appliance or instrument for regulating the
flow of liquids or fluids through pipes, such as steam, water, gas, or spirits,
and for entirely stopping or preventing such flow as circumstances may require,
and by so doing it answers all the purposes of a stop valve. The shell or
body of such plug valve resembles that of an ordinary straight or through-way
stop-cock, with the exception of the opening, which is generally called the
"mouth of the shell;" this said mouth instead of being supplied with a gland
and stuffing box or being entirely filled with the plug is supplied with a lid
or cover containing stuffing box, through which stuffing box a spindle
(which we denominate a valve spindle) passes, having a screw cut upon it by
means of which the plug or valve is opened or shut; the before-mentioned
lid may be screwed, bolted, or otherwise fastened to said shell. The plug or
valve also resembles the plug of an ordinary stop-cock and may be made
either with or without passages, as the case may be, such passages being
transverse openings in the plug for the conduction of liquid or fluid, and are
employed mainly for reducing the travel or motion of the valve. The plug
or valve may also be made either entirely of metal or other suitable material,
or may be faced or coated with india-rubber, vulcanite, gutta percba, and
other such like substances, or may be made entirely of rubber, vulcanite,
gutta percha, and other such like substances; such facing or coating may be
screwed on as shewn in the accompanying Drawings, but instead of such
plug or valve having a rotary action it is moved in a direction parallel to its
own axis (which direction may be either vertical, horizontal, or diagonal,
depending upon the position in which it should be fixed) by the screwed part
of the spindle moving in a corresponding screw or nut or other suitable
arrangement in or attached to before mentioned lid or cover or other con-
venient part, or the said screwed part of the spindle may be placed outside
the shell altogether and be worked by a moveable nut or in a fixed one, as
shewn in the Drawing. It will be obvious that a screwed spindle is not
absolutely necessary for opening or shutting the valve, as the valve may be
moved or opened and shut by any direct force acting upon a plain spindle,
such as the application of the hand or by means of a lever or by a spiral or
other spring or elastic material.

page_text: In order the more clearly to elucidate the principal parts of this our
Invention as herein-before described, we aunex hereunto a Drawing.
Fig. is a sectional elevation in which A, A, A, represent the body or
shell; B, the lid or cover; C, the spindle; and D, the metal plug or valve.
Fig. 2 is a plan in which a represent a guide bar for carrying the
valve parallel and to prevent it from rotating by means of such guide
bar moving in the grooves b, b.
Fig. 3 shews a method of opening or closing the valve by means of a
moveable nut E.
Fig. 4 represents a full size 2" plug or valve, half in section and half in
elevation, in which F is a vulcanite facing or coating.
Fig. 5 is a side elevation of a small plug valve for such as beer or spirits,
in which d represents a spiral spring for opening or closing the valve after
the direct opening or closing force has been removed.
Fig. 6 shews a method of opening or closing the valve by means of a fixed
nut outside the lid.
Having so far described and illustrated this our new or improved plug
valve, setting forth the novelty of its construction and mode of action, we
have only to remark that it may be made of the same kind of material and
used for precisely similar purposes as ordinary stop-cocks, stop valves, and
sluice valves.
In witness whereof, we, the said Ivie Mackie McGeorge and Alfred
Paul, have hereunto set our bands and seals, this Sixth day of January,
in the year of our Lord Oue thousand eight hundred and sixty-eight.
WIE MACKIE NG CROUC
IVIE MACKIE MAC GEORGE. (...)
ALFRED PAUL.
(L.S.)