IMPROVEMENTS IN AND APPLICABLE TO PACKING OR RENDERING TIGHT THE SPINDLES OF THROTTLE VALVES, STOP
Year: 1874

page_text: LETTERS PATENT to Seymour Allen, of Liverpool, in the County of
Lancaster, for the Invention of "IMPROVEMENTS IN AND APPLICABLE TO
PACKING OR RENDERING TIGHT THE SPINDLES OF THROTTLE VALVES, STOP
'
Scaled the 16th April 1875, and dated the 19th December 1874.
PROVISIONAL SPECIFICATION left by the said Seymour Allen at the
Office of the Commissioners of Patents, with his Petition, on the
19th December 1874.
I, SEYMOUR ALLEN, of Liverpool, in the County of Lancaster, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
AND APPLICABLE TO PACKING OR RENDERING TIGHT THE SPINDLES OF THROTTLE
VALVES, STOP VALVES, AND OTHER LIKE VALVES," to be as follows:-
My Invention relates to a method of and means for packing or
rendering tight the spindles which carry or work throttle valves, stop
valves, and other like valves, whether such valves are are used for steam,
water, gas, or other like purposes.

page_text: The application of my Invention to the ordinary type of throttle valve
consists in forming on the spindle (which works such valve) immediately
above the valve a washer or packing valve made of size to pass easily
through the neck of the valve box. This washer valve may be cast on
the spindle or screwed or otherwise attached to the said spindle. The
neck of the valve box is provided with a gland, through which the
spindle passes. This gland is secured to the valve box by suitable bolts
and a suitable made joint. The under side of the gland is faced or
ground so that the washer valve attached to the valve spindle may bear
thereon, the under side of the gland thus forming the valve seat.
By preference the valve spindle is made square where it passes through
the throttle valve, and has an easy fit in said valve so that the pressure
of the steam, water, or gas in the valve box will act upon the washer
valve and force the same against the under side of the gland, thus
packing and rendering tight the valve spindle.
In applying this my Invention to valves, such as stop valves, whero it
is usual for the valve spindle to lift, I form a provision on the top of the
lift valve provided with a loose nut. Into this nut I screw the end of
the valve spindle, so that upon the valve spindle being turned the nut
and valve will screw up the spindle, the spindle end running into the
provision on the top of the valve until the valve is sufficiently lifted.
The spindle is provided with a washer valve similar to that described in
the case of the throttle valve. This washer bears on the under side of a
gland of like description to that used for the throttle valve, but for this
description of valves, namely, lift valves, I provide a bush or seat with a
ground top face underneath the washer valve, so that the valve spindle
is packed and rendered tight whether the valve is open or shut, inasmuch
as the washer valve will bear on its top or bottom seat, as the case.
may be.
SPECIFICATION in pursuance of the conditions of the Letters Patent, 3
filed by the said Seymour Allen in the Great Seal Patent Office
on the 18th June 1875.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Nineteenth day of December, in the year
of our Lord One thousand eight hundred and seventy-four, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Seymour Allen, Her special licence,
that I, the said Seymour Allen, my executors, administrators, and
assigns, or such others as I, the said Seymour Allen, 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 AND APPLICABLE TO PACKING OR RENDERING TIGHT THE SPINDLES OF THROTTLE
VALVES, STOP VALVES, AND OTHER LIKE VALVES," upon the condition (amongst
others) that I, the said Seymour Allen, my exccutors 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

page_text: ground so that the washer valve attached to the valve spindle may bear
thereon, the under side of the gland thus forming the valve seat.
By preference the valve spindle is made square where it passes through
the throttle valve, and has an easy fit in said valve, so that the pressure
of the steam, water, or gas in the valve box will act upon the washer
valve and force the same against the under side of the gland, thus
packing and rendering tight the valve spindle.
In applying this my Invention to valves, such as stop valves, where
it is usual for the valve spindle to lift, I form a provision on the top of'
the lift valve provided with a loose nut. Into this nut I screw the end
of the valve spindle, so that upon the valve spindle being turned the
nut and valve will screw up the spindle, the spindle end running into
the provision on the top of the valve until the valve is sufficiently lifted.
The spindle is provided with a washer valve similar to that described in
the case of the throttle valve. This washer valve bears on the under side
of a gland of like description to that used for the throttle valve, but for
this description of valves, namely, lift valves, I provide a bush or seat
with a ground top face underneath the washer valve, so that the valve
spindle is packed and rendered tight whether the valve is open or shut,
inasmuch as the washer valve will bear on its top or bottom seat, as the
case may be.
The beforegoing being the nature, object, and purposes of this my
Invention, I will now proceed to describe more in detail how the same
may be carried out into practical effect, and for that purpose I have
hereunto attached a Sheet of Drawings marked with letters and figures
of reference corresponding with those in the following explanation. Like
letters and figures are used to denote similar parts throughout the various
views:―
Figure 1 is a sectional elevation of a throttle valve, the side marked A
being constructed and packed according to the present method, the side
B being constructed and rendered tight according to my Invention.
Figure 2 is a sectional elevation of a stop valve, the spindle of which
is packed or rendered tight according to my Invention.
Figure 3 is a modification of Figure 2.
Upon reference to the Drawings it will be seen that my Invention
consists in forming the collar or valve a on the spindle b. This collar

page_text: or packing valve is made of size to pass easily through the neck c of the
valve box d. e is a gland through which the spindle passes, and which
is secured to the valve box by suitable bolts or by screwing. The under
side of the gland e is faced or ground so that the collar or valve a may.
bear thereon, the under side of the gland e thus forming the valve
scat.
b
In the case of throttle valves the valve spindle 6 may be made square
where it passes through the valve, or the attaching pins may have play
in the valve spindle so that the pressure of steam will act upon the collar
or valve a and force the same against the under side of the gland e, thus
packing and rendering tight the valve spindle..
In applying this my Invention to valves, such as stop valves, where it
is usual for the valve spindle to lift, I form a provision f, Figures 2 and 3,
on the top of the lift valve provided with a loose nut h. Into this nut
I screw the end of the valve spindle, so that upon the valve spindle
being turned by the hand wheel i the nut and valve k will screw up
the spindle until the valve is sufficiently lifted, the pin serving to
prevent the valve from turning. In valves of this description I provide
a bush or seat m with a ground top face so that the collar valve a may
bear thereon while the valve k is being opened.
In the modification shown at Figure 3 I form the collar or valve a
conical, and I form the under side of the glande in the shape of a hollow
cone so that the collar valve a may bed thereon.
It will be seen upon reference to the Drawings that the steam in the
valve box d has free access to the collar or valve a, and the pressure
exerted thereon serves to force the collar or valve a against the gland e,
and thereby packs or renders steam-tight the spindle.
Having now fully described the nature, object, and purposes of this
my Invention, and shown how the same may be carried out into practical
cffect, I wish to have it understood that I do not confine myself to any
particular size or dimension of valves constructed according to my
Invention, nor do I confine myself to the particular class of valve to
which my
Invention is applied, as my Invention is applicable to all
kinds of taps and valves having a spindle passing out through a gland
and a pressure of steam, water, or gas inside the said valve. I am also
aware that valves have been made having a conical shoulder formed on
the spindle, which fits a female counterpart in the gland, the said shoulder

page_text: being kept tight against the gland by means of a nut on the outside of
the gland, but this method is faulty, inasmuch as that wear soon causes
leakage; but what I claim as my Invention and secured to me by Letters
Patent as aforesaid is, the improvements in and applicable to packing or
rendering tight the spindles of throttle valves, stop valves, and other
like valves by the pressure of steam, water, or gas in such valves acting
upon the collar or valve formed on the valve spindle, and forcing such
collar or valve against the under side of the gland e, which is ground to
receive it, substantially as set forth in the beforegoing Specification and
accompanying Drawings.
In witness whereof, I, tho said Seymour Allen, have hereunto set
my hand and seal, this Twelfth day of June, in the year of our
Lord One thousand eight hundred and seventy-five.
SEYMOUR (L.s.) ALLEN.