Year: 1895

page_text: Date of Application, 19th Jan., 1895
Complete Specification Left. 19th Oct., 1895-Accepted, 23rd Nov., 1895
STEPHEN HUMBLE Junior and JAMES FREDERICK BARKER Mechanical
Engineers 24, Lawn Crescent Kew Gardens Surrey, do hereby declare the nature
of this invention to be as follows:--
A self-locking valve or tap with arrangement for a straight look through into
vessel or pipe to which it is attached giving perfect freedom for cleaning out
vessel or pipe and removing any obstruction, such as dirt, grit, ice etc. without
detachment, and suitable for use upon stationery, marine, locomotive boilers and
tanks, and any and every vessel where steam, gas, water, or other liquids are
required to be drawn off.
We will now explain the accompanying drawings.
A is the cylinder or outer casing of the valve or tap.
B is the outlet.
C is the piston carrying asbestos, india-rubber, vulcanite, leather, or other
suitable packing firmly secured by brass plate and bolts with thimble to receive
head of screw.
D is a face plate or cover having a boss in centre with thread to receive screw
to work through fastened upon a strong hinge at top as shown, or bottom, or.
sides, or fastened with a swivel so as to slide sideways, and fastened when in
position to cylinder or outer casing A with one or more strong bolts, screws etc.
E is a strong screw to which is affixed a wheel with or without handle, working
through boss on face plate D and going through piston and packing into thimble
of plate attached to piston C terminating with a stud and actuating the piston C,
opening and closing same at will of operator, and when closed "locking itself
firmly by means of the screw, and so withstanding any pressure of steam or liquid
that may be brought to bear against it.
To obtain a straight look through it is necessary to work the piston into the
chamber of face plate D by means of the screw, uncouple bolts and the desired
object is obtained by raising the piston C and face piate D working upon the
hinge, either for cleaning out or repacking piston,
Dated this Nineteenth day of January 1895.
STEPHEN HUMBLE, JUNIOR.
JAMES FREDERICK BARKER.
We, STEPHEN HUMBLE, Junior and JAMES FREDERICK BARKER, of 24 Lawn
Crescent, Kew Gardens, in the County of Surrey, Mechanical Engineers 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 relates to screw-down stop valves, and has for its object, the

page_text: construction and arrangement of the parts of such a valve, whereby the valve and
its operating gear, together with, and attached to the cover of the valve casing, can
be removed from its place after tinbolting the cover joint, and without disturbance
of the joints of the valve box pipe connections; the passages of the valve box
have also a full area through them, when in use with valve open, and a straight
look-through can he had through the valve seating, and into the vessel or pipe
under the said seating to which the valve is attached, giving perfect freedom for
cleaning out the vessel or pipe and removing any obstruction such as dirt, grit,
ice, etc.
Our invention consists in the construction and arrangement of a valve-box, a
hinged and bolted cover, a valve and screwed spindle, operating same as hereinafter
more fully described.
And in order that our invention may be the better understood, we will now
proceed to describe the same in relation to the accompanying drawings, reference
being had to the letters and figures marked thereon. Like letters refer to like
parts in the various figures.
Figure 1 is a sectional elevation of a valve with right angle branches, made
according to our invention for use with low pressure.
Figure 2 is a half plain plan and half sectional plan of Figure 1.
Figure 3 is a sectional elevation of a valve for use with high pressure.
Figure 4 is a half plain plan and half sectional plan of Figure 3.
Figure 5 is a sectional elevation of a straight through valve.
Figure 6 is a plan thereof..
Figure 7 is a sectional elevation of the valve of the bib-cock form, and
Figure 8-is a plan of Figure 7.
In all the figures we have shown the working parts removed clear from the
normal position in the valve box in dotted lines.
In reference to the various figures it will be seen that the valve box A is fitted
with a cover B constructed with a recess to receive the valve.
In Figures 1 and 2 the cover B is held and jointed to the box A by ordinary
screws b, or studs, or bolts, and nuts, and is also pivotably attached to the box A
by the pivot pin C, so that when the jointing screws b are withdrawn, and the
valve raised into its highest position, the whole of the working parts can be
removed out of the valve box, which thus permits ready inspection through the
seating of the valve-box, and into the supply pipe or vessel thereunder, and the
removal of any obstructive matter is thereby rendered easy. The valve D is
loosely connected with the spindle E, which has a screw thread arranged along its
length, which engages with a thread in the cover B. If desirable, a jointing
washer a may be placed on the upper side of the valve D, so as to come into
contact with the cover B, forming a joint therewith, and thus preventing any
escape of fluid through the passage round the screwed spindle E.
In Figures 3 and 4 the valve is adapted for high pressure the spindle E is
therefore embraced by a gland F on the cover B, and is provided with a thrust
collar which bears against the under side of the cover B, a plate e being arranged
on the under side of the collar to prevent the dropping of the spindle in the
box A.
The lower part of the spindle E is provided with a screw thread. The valve D
is arranged with a screw-thread, to engage with that on the spindle E, and a
tubular casing G with a closed end, is adapted to enclose the end of the screwed
spindle E, to prevent any passage of fluid up through the valve D, where the
spindle E passes through it. Feathers H are arranged upon the case A, and
feather ways to engage therewith are made upon the valve D to prevent the
valve turning during the revolution of the spindle E in opening or closing the
valve. In this valve the cover B is hinged by the hinge to the casing, on au
axis which is at right angles to the axis of the spindle E, and the cover and
working parts are simply turned back out of the casing A, when an examination
has to be made.

page_text: In Figures 5 and 6 the passage through the casing A is straight through, and
the valve D and its working parts are arranged obliquely to the axis of the
casing A. The valve D is loosely connected to the spindle E, the latter being
adapted to screw into the cover B, a trunk I with a gland F at its upper end being
arranged to permit the passage of the screwed portion of the spindle, when the
valve is in its extreme open position. The cover B is jointed by screws 6 to the
casing A and cover and casing are provided with hinge lugs and pivot pin C.
The valve shown in Figures 7 and 8 is similar in action and arrangement to that
shown in Figures 3 and 4, the only difference being that the casing is modified to
assume the form of a bib cock.
Now it will be noticed that in all the designs of the valve shown, an important
feature is common, viz. that provision is made in the casing and cover so that
the valve and its working parts, when in operation with the valve open, may be
entirely withdrawn from the direct passage of the liquid, and therefore gives an
absolutely full way; and further the whole of the internal operating parts may be
removed entirely out of the valve box in conjunction with the pivotable cover,
whilst at the same time the pivotable connection of the cover to the casing ensures
that the parts when removed from the valve box, cannot be lost, nor be laid down
in dust or dirt. We do not necessarily restrict the adaptation of our invention to
the forms of valves and casings as shown, as these may be modified to suit their
various uses, and may be constructed in many forins with the arrangement of the
valve spindle and pivotable covers according to the essence of our invention.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1st. In a stop valve the arrangement of parts, consisting of a hand wheel screwed
spindle directly operating a plate piston valve, a casing containing valve seating
and a cover recessed to receive valve and pivotably attached to the said casing,
all adapted to permit the valve and working parts to be withdrawn from the water
way when in operation, and to be entirely removed from the casing by revolution
about the said pivot hinge to admit of easy access to the valve washer, the seating,
and the supply pipe under the said seating substantially as described.
2nd. In a stop valve as claimed in Claim 1, a cover hinged or pivotably attached
to casing, carrying in a stuffing box a spindle, screwed at lower end and engaging
in a tapped hole in plate valve protected by a closed casing, into which the spindle
enters as the valve is screwed up, the rotation of the valve being prevented by
feathers in the side of casing, engaging with the valve, substantially as described
in Fig. 3 and 4.
3rd. In a stop valve as claimed in Claim 1 the specific arrangement of parts
consisting of a straight through passage, with seating placed obliquely thereto, a
recessed and pivotably hinged cover containing a stuffing box and intermediate
chamber between stuffing box and screwed neck, a partly screwed spindle and plate
piston thereon, adapted to withdraw the valve from the seating into recessed cover,
to enable their removal from casing by turning the cover on its hinge substantially
in Figs. 5 to 8.
Dated this 19th day of October 1895.
FELL & WILDING,
1 Queen Victoria Street, London, E.C., Agents for the Applicants.