Improvements in Valves.
Year: 1891

page_text: Date of Application, 22nd Apr., 1891-Accepted, 1st Aug., 1891
Improvements in Valves.
We, THOMAS RILEY, Brass-founder, residing at 179 Ossington Avenue, in the
City of Toronto, in the County of York, in the Province of Ontario, Canada, and
HENRY JOHN BOSWELL, Real Estate Agent, residing at 48 Churchill Avenue, in
the said City of Toronto, do hereby declare the nature of our invention, and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
The essential object of our invention is to devise a valve, so that when the seat
becomes honey-combed or channeled through wear, it can be removed and replaced
by a new one, also to dispense with the use of the old form of disk and washer.
To do this we carry the valve stem downwardly and place thereon a cushion of
rubber, carried on the said valve stem by means of a nut, which cushion serves as
a valve, and tightly closes the water way through the valve sent when screwed
down to its closed position; also to arrange a plate on the said valve stem above
the rubber cushion which binds the said cushion to its place, and when the valve
is opened to its fullest extent, binds against the washer in the upper portion of the
valve chamber, and prevents any escape of fluid through the upper part of the
said chamber.
In the drawings,
Figure 1 is a sectional view of our invention showing it applied to a water tap.
Like numerals of reference refer to like parts throughout the Specification and
drawings.
By reference to the drawings it will be noticed that the valve seat 1, is provided
with an aperture in which is formed a screw thread 2. Into this aperture is
screwed a removeable seat 3, having between it and the valve seat 1, a packing 4,
and having an aperture 5, in its body through which the fluid is permitted to pass
when the valve is opened.
As the lower casing and water ways of this tap are old, it is not necessary to
describe them.
On the outer face of the upper casing 6 is cut a screw thread 7, and a cap 8 is
screwed on to the said upper casing 6, with a washer 9 between it and the upper
edge of the said casing. The washer 9 cuts off any leakage through the upwardly
extending opening 10, and through any slight opening that may occur between the
upper casing 6 and the downwardly extending flange 11 of the said cap 8. In the
upwardly extending opening 10 is cut a screw thread 12 to correspond with
the thread cut on the valve stem 13. It will be noticed that the valve stem below
the washer 9 is enlarged to form a plate 14 which serves as a back for the rubber
cushion 15, placed on the said valve stem 13 below the said plate 14.
The valve stem 13 extends sufficiently below the rubber cushion 15 to permit a
screw thread 16 to be cut thereon. To hold the rubber cushion 15 in place a
nut 17 is screwed onto the threaded portion 16 of the valve stem 13. The rubber
cushion 15 is sufficiently free between the nut 17 and the plate 14 to permit it to
freely revolve on the said valve stem.
In the cap 8 above the washer 9 is a recess 18 into which is introduced packing
to entirely cut off any leakage which might find its way through the said washer 9.
On the upper end 19 of the cap 8, is cut a screw thread 20, and on the said upper
end is screwed a nut or stuffing box 21, with a washer or packing between it and
the said upper edge. By screwing the valve stem 13 downwardly the rubber
cushion 15 is brought down on the removeable seat 3, and the water way 5 is tightly
closed preventing the flow of the fluid through the said water way, and by raising
the rubber cushion 15 which forms the valve, the water way 5 is opened and the

page_text: water is permitted to freely pass through the same. If at any time the valve
seat 3 should become honey-combed or channeled through wear, it may be removed
and replaced by a new one thus making the tap as good as new without the incon-
venience of removing the said valve or tap and the expense attached in reaming
the old seat out. When the valve is to be used for steam purposes the rubber
cushion 15 is enclosed in a metallic casing for the purpose of preventing the steam
cutting or feathering it. It is also possible to remove the cap 8 from the upper
casing 6 so as to enable a person to remove the rubber cushion 15 on the valve
stem when it has become worn or played out and replace it by a new one.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is,―
1. The combination of a cock or faucet provided with a permanent seat, having
a screw threaded aperture therein, a removable seat having screw threaded stem
fitting in said aperture and also provided with a flaring upper end, and an annular
bead or rib, and with a laterally extending flange resting upon the bordering edges
of the opening of the permanent seat, and a valve stem carrying a rubber valve
adapted to be acted upon by the annular bead so as to depress the said valve into
the opening of the seat, substantially as set forth.
2. The combination of a permanent seat having a screw threaded aperture, a
removeable cap having depending stem fitting said aperture, and also provided with
a lateral annular flange, resting upon the upper surface of the permanent seat, a
valve stem and valve, a cap screwed onto the upper surface of the cock or faucet
and a nut screwed onto the upper end of said cap, substantially as set forth.
Dated this 22nd day of April 1891.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.Č., Agents to Applicants.