Improvements in or relating to the Steam Distributing Valves of Pulsometers.
Year: 1897

page_text: Date of Application, 19th Oct., 1897
Complete Specification Left, 19th July, 1898-Accepted, 27th Aug., 1898
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Steam Distributing Valves of
Pulsometers.
I, ROBERT GRUNDY BROOKE, of Upton Grange, Macclesfield, in the County of
Chester, Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has reference to improvements in or relating to the steam dis-
tributing valves of pulsometers of the kind that are adapted to oscillate or rock
about centres between oppositely arranged valve seats, and it has for
object to provide for the automatic adjustment of such valves relatively to their
seats so as to ensure that they will bed accurately thereon and thus effect a steam
tight joint therewith notwithstanding unevenness or want of truth of the said
seats caused by wear or otherwise. For this purpose I mount a valve of the kind
referred to on an adjustable centre pivot or support, the arrangement being such
that if the faces of the valve and either valve seat be not in the same plane when
the two parts are brought together and the pivot or support is in its normal
position, the position of the said pivot or support will automatically vary so as to
allow the valve to seat itself truly upon the valve seat against which it is for the
time being caused to bear.
My invention can be carried out in various ways. For example in one arrange-
ment the bottom edge of the valve is formed with a vee-groove and rests upon a
knife edge formed with upwardly projecting arms by which it is suspended from
adjustable cone bearings so as to be capable of swinging from side to side.
In another arrangement the valve is mounted on a knife-edge formed in a blade
or support which rests freely in a groove formed in the lower part of the valve
casing, the valve being as it were linked to the valve casing.
By providing sufficient play between the valve and the knife-edge or support
upon which it rests, or between the knife edge or support and part of the valve
casing, that carries the same, or by both of these means, the valve can be enabled
to adjust itself automatically in two directions at right angles to each other.
Dated this 19th day of October 1897.
Improvements in or relating to the Steam Distributing Valves of
Pulsometers.
I, ROBERT GRUNDY BROOKE, of Upton Grange, Macclesfield, in the County of
[Price &dl

page_text: Chester, Engineer, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:-
This invention has reference to improvements in or relating to the steam dis-
tributing valves of pulsometers of the kind in which the valves are adapted to oscil-
late or rock about centres between oppositely arranged valve seats, and it has for
object to provide for the automatic adjustment of such valves relatively to their
seats so as to ensure that they will bed accurately thereon and thus effect a steam
tight joint therewith notwithstanding unevenness or want of truth of the said
seats caused by wear or otherwise. For this purpose I mount a valve of the kind
referred to on an adjustable centre, pivot or support, the arrangement being such
that if the faces of the valve and either valve seat be not in the same plane when
the two parts are brought together and the pivot or support is in its normal
position, the position of the said pivot or support will automatically vary so as t
allow the valve to seat itself truly upon the valve seat against which it is for the
time being caused to bear.
My invention can be carried out in various ways.
Figs. 1 and 2 of the accompanying illustrative drawings are vertical sections
at right angles to one another showing the upper part of a pulsometer of the kind
referred to with one arrangement of valve support according to this invention.
Figs. 24 and 2 are cross sections on the lines A B and C D respectively of Fig. 2.
I is the steam distributing valve arranged to oscillate or rock between the
oppositely arranged valve seats 2", 2b formed in a conical plug 2 which is fixed, as
by a nut 2, in the pulsometer casing 3 and is formed with ports 2" whereby steam
can pass from the inlet branch 3" alternately to each of the steam chambers 4 and 5.
In this arrangement the bottom edge of the valve 1 is formed with a vee-groove 1"
and rests upon a knife edge 6 formed with upwardly projecting arms 6" by which
it is suspended from adjustable cone bearings 7 screwed through the casing 3, so as
to be capable of swinging from side to side.
The holes in the arms 6" in which the cone bearings 7 take, are each elongated
sideways (Fig. 2) so that not only can the valve support 6, 6 swing from side to
side about a horizontal axis, but can also partly turn in either direction about a
vertical axis, so as to permit the distributing valve 1 to tilt sideways in any direc-
tion and enable each of its faces to take an even bearing upon the corresponding
valve seat.
Figs. 3 and 4 are vertical sections at right angles to one another, and Figs. 5
and are sections on the lines A¹ B and C D¹ respectively of Fig. 4, showing a
modified arrangement of plug and valve according to which the upwardly project-
ing arms 6ª of the knife-edge support 6 are formed at their upper ends with knife-
edge extensions 6b pivotted on recessed bearings 2d in the plug so that the sup-
porting means are arranged within the plug itself and are thus self-contained, the
pivotal connection between the support 6 and plug 2 being such as to allow of a
small horizontal turning movement of the former for the purpose hereinbefore
set forth.
Fig. 7 is a sectional view, showing a modified arrangement in which the valve 1
is mounted on a knife-edge support 6 formed as a blade or plate the lower edge
of which is formed as a knife-edge that rests loosely in a recess 2° in the lower
part of the valve casing or plug 2, the valve being as it were linked to the valve
casing. The lower end of the support 6 may, if desired, be provided with a central
projection 6° arranged to rest in a cup shaped recess 2° (Figs. 7 and 8), so as to
enable the support to swivel on its axis with greater freedom.
By providing sufficient play between the valve 1 and the knife-edge or support 6
upon which it rests, or between the knife-edge or support 6 and the part 2° of the
valve casing or plug 2 that carries the same, or by employing both of these means,
the valve is enabled to adjust itself automatically in any direction on the valve
seat as hereinbefore described.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I claim
is:-
1. Mounting the steam distributing valve of a pulsometer of the kind herein
referred to upon an adjustable pivot or support so that it can automatically adjust
itself to bear evenly upon either of the valve seats against which it is for the time
being caused to rest, substantially as herein described.
2. A pulsometer of the kind herein referred to wherein the steam distributing
valve is supported substantially in the manner and by the means hereinbefore
described with reference to and shewn in Figs. 1 to 2" inclusive of the drawings
annexed, or modified according to Figs. 3 to 6 inclusive, or according to Fig. 7 for
the purpose set forth.
Dated this 19th day of July 1898.
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.