IMPROVEMENTS TN STAD VALVES FOR STEAM AND OTHER PIPES.
Year: 1874

page_text: LETTERS PATENT to Charles Whitton, of Leslie, in the County: of
Fife, North Britain, Engineer, for the Invention of "IMPROVEMENTS
TN STAD VALVES FOR STEAM AND OTHER PIPES.'
Scaled the 5th January 1875, and dated the 11th July 1874.
PROVISIONAL SPECIFICATION left by the said Charles Whitton at
the Office of the Commissioners of Patents, with his Petition, on
the 11th July 1874.
I, CHARLES WHITTON, of Leslie, in the County of Fife, North
Britain, Engineer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN STOP VALVES FOR STEAM AND OTHER PIPES," to be as
follows, that is to say :-
This Invention has for its object the constructing of stop valves for
steam and other pipes in an improved manner and so as to give the
least possible trouble in use.
The improved valve details are contained in and on a cylindrical or
other conveniently shaped body made with 'flanges or otherwise at each

page_text: end, so that it can be fixed in its place in the line of piping to which
it is applied. The main closing detail is a disc with a conical edge
fitting in a corresponding conical seat and fixed on a spindle, which
last is situated in the axis of the piping, or nearly so. The valve
spindle has on it the usual radiating guide feathers, but these are cut
in close to the valve to avoid the corrosive action which ordinarily takes
place at these parts. The valve is placed so as to open against the
pressure, and it is opened by means of a handing spindle placed at
right angles to the axis of the valve and piping being entered through a
stuffing box into the valve body.
In one modification of the opening details the valve spindle is formed
with an inclined slot, in which there works an inclined block or wedge
piece and this block is moved at right angles to the valve spindle by
means of a screw on turning the handing spindle by a hand wheel
fixed on the outer end of it. On the block being thus moved the
action of its inclined surfaces on those of the slot in the valve spindle
causes the valve to open or close according to the direction in which it
is moved.
An eccentric or cam turned by the landing spindle may be sub-
stituted for the inclined block or wedge picce, or a pinion on the
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Charles Whitton in the Great Seal Patent Office
on the 8th January 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
WHITTON, of Leslie, in the County of Fife, North Britain, Engineer,
send greeting.
✓
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of July, 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 Charles Whitton, Her special licence
that I, the said Charles Whitton, my executors, administrators, and

page_text: assigns, or such others as I, the said Charles Whitton, 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 STOP VALVES FOR STEAM AND OTHER PIPES," upon the condition (amongst
others) that I, the said Charles Whitton, my executors or adminis-
trators, 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 Charles Whitton, 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 in writing, reference being had to the accompanying
Drawings, that is to say :-
My said Invention has for its object the constructing of stop valves.
for steam and other pipes in an improved manner and so as to give the
least possible trouble in use.
And in order that my said Invention and the manner of performing
the same may be properly understood, I hereunto append a Sheet of.
explanatory Drawings to be herein-after referred to, and representing
three modifications of my improved valves. In these Drawings the-
same reference numerals are used to mark the same or like parts
wherever they are repeated.
Figures 1, 2, 3, are longitudinal sections of three modifications of
O my improved valves, and in each of them the details are contained in
and on a cylindrical or other conveniently shaped body 1 made with
flanges 2 at each end, as in Figure 1, or screwed as at 3 in Figures 2
and 3, so that it can be fixed in its place in the line of piping to which
it is applied. The main closing detail is a disc 4 with a conical edge
5 fitting in a corresponding conical seat 5 and formed or fixed on a
spindle 6, which last is situated in the line of flow or axis of the piping,
or nearly so. The valve 4 or its spindle 6 is made with the usual guide

page_text: feathers 7, but these are cut in or indented at 8 close to the valve to
avoid the corrosive action which ordinarily takes place at these parts.
In the modifications shown in Figures 1 and 3 the valve spindle 6 is
additionally guided by passing through a bridge piece 9.
In the modification shown in Figure 2 a second slightly smaller valve
disc 10 with its guide feathers 11 is formed or fixed on the opposite end
of the spindle 6. The valve 4 is placed so as to open against the
pressure, and it is opened by means of a handing spindle 12 placed at
right angles to the axis of the valve and piping, being entered through
a stuffing box 13 into the valve body.
In the modifications shown in Figures 1 and 2 the valve spindle 6
(shown separately in plan in Figure 4), is formed with an inclined
slot 14, in which there works an inclined block or duplex wedge 15,
and this block 15 is moved at right angles to the valve spindle 6 by
means of a screwed part 16 of the handing spindle 12, a screwed bore ]
being formed through the block 15 for the spindle 12, 16, to work in.
On turning the spindle 12, 16, by means of a hand wheel 17 fixed on
it, the action of the inclined block 15 on the inclined surfaces of the
slot in the valve spindle 6 causes the valve 4 to open or close, according
to the direction in which the hand wheel 17 is turned.
In order to move the inclined block 15 the spindle 12, 16, must be-
prevented from itself moving in the direction of its length, and for this
purpose it has formed on it a collar 18, which is held down by the
stuffing box 13 in a manner that will be easily understood from the
Drawings.
In the modification shown in Figure 3 an eccentric or cam 19 is
formed on the inner end of the valve spindle 12 and acts in a transverse
groove formed on the valve spindle 6, so as on being turned to move
this spindle longitudinally and thereby open or close the valve.
Instead of the eccentric or cam (19) the spindle 12 may have a a
pinion formed on its inner end to gear in rack teeth formed on the
valve spindle 6.
When it is wished to employ the valve as a discharge, the valve
body 1 may be formed with or have screwed or otherwise attached to it
+3

page_text: Having thus particularly described my said Invention, and the manner
of performing the same, I have to state that I do not restrict myself
to the precise details herein described or delineated, but that what I
believe to be novel and original, and claim as the Invention secured to
me by the herein-before in part recited Letters Patent is,―
1. The arranging or combining together of the parts of stop valves
in the improved manner, substantially as herein-before described; and
more particularly, the placing of a conical seated valve (4) with its
spindle (6) in the line of flow, and with a handing or moving spindle (12)
at right angles thereto.
2. The cutting in or indenting of the guide feathers (7), as and for
the
purpose herein-before described.
In witness whereof, I, the said Charles Whitton, have hereunto
set my hand and seal, this Sixth day of January, in the year of
our Lord One thousand eight hundred and seventy-five.
HITTIRN
CHARLES WHITTON. (L.S.)