Year: 1888

page_text: Date of Application, 19th Jan., 1888
Complete Specification Left, 11th Oct., 1888
Complete Specification Accepted, 30th Nov., 1888
I, SMITH HUDSON, of Fairmount, Thwaites Brow, Keighley, in the County of
York, Foreman Sawer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to certain improvements in the construction of taps, and
has for its object, the arrangement of the seating and the stopper or valve plug
therefor in such a manner that, the same are more durable, and afford better facilities
for repairs than those of the ordinary construction.
I accomplish my object in the following manner :-I form the seating and the
stopper or plug valve conical, and connect the stopper to a spindle made to project
for some distance outside the tap casing; a portion of the spindle between the stopper
and stuffing box being suitably threaded.
The stopper or valve plug may be of metal made to fit the conical seating; or it
may be of metal and cut with one or more grooves, in each of which I place a band
of flexible material such as india rubber, leather, or the like, so that on the stopper
being operated by the screwed spindle until it is pressed tight against the conical
seating, the flow of the liquid or gas is effectually stopped.
The end of the tap behind the plug valve or stopper is provided with a screwed
thread, and fits into a thread cut in a thimble to be attached to the service pipe; and
on being unscrewed therefrom after the said thimble is fixed, free access is obtained
to the valve and seating for repairs; the opening in the thimble being closed by a
screwed plug or cap, thereby enabling the service pipe to supply other taps attached
thereto, whilst the seating or stopper of the disconnected valve is repaired.
D
10th day of January 1888.

page_text: I, SMITH HUDSON, of Fairmount, Thwaites Brow, Keighley, in the County of
York, Foreman Sawer, 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 certain improvements in the construction of taps, and has
for its object, the arrangement of the seating and stopper or valve plug therefor in
such a manner that, the same are more durable, and afford better facilities for repairs
than those of the ordinary construction; and consists in forming the stopper or valve
plug and seat therefor conical, and of considerable length; the former by preference
being recessed, in which is inserted one or more bands of flexible material, so that, on
the stopper being operated by a screwed spindle until pressed tight against the conical
seating, the flow of the liquid or gas is cut off.
In describing my invention more in detail, reference is made to the accompanying
drawings, in which Fig. 1 represents a longitudinal section through the centre of a
tap casing constructed according to my invention. Fig. 2 is a similar sectional view
of the bottom portion of my improved tap in a modified form, in which the conical
direction of the valve or stopper and seating are reversed. Figure 3 is also a sectional
view of a tap showing another arrangement how the valve or stopper may be utilized
when reversed. Fig. 4 is a view of a thimble with a screwed plug therein; and
Fig. 5 an enlarged sectional detail through the centre of a stopper, and nut for
securing same; the operating spindle in all the views is not shown in section for more
clearly illustrating the invention.
In the upper portion of the tap casing A, is formed a stuffing box with gland B of
the ordinary construction, a washer W being placed at the bottom of the stuffing box
for keeping the packing clear of the spindle screw. Through the gland and stuffing
box passes the operating spindle C, with a screw thread at D engaging with a thread
formed in the tap casing; the portion of the spindle C that passes through the stopper
or valve E, is reduced in diameter and cut with a screw, on to which the metal
conical stopper E is screwed tight against a shoulder and retained by a lock nut F, in
a manner as shown by sectional detail Fig. 5.
The stopper or valve E may be of metal with its circumference made to accurately
fit the conical seating G in tap casing A, or otherwise; but I prefer to cut the
circumference of the said stopper with one or more grooves, in each of which is
placed a band of flexible material H, such as india rubber, leather or other tough
pliable substance.
In the case of applying india rubber, the washers or bands may be cast or formed
on the recessed part of the stopper; and when leather or other similar tough material
is used; in order to place the rings on the metal portion of the stopper E, I make
the same in two parts, somewhat as shown by enlarged sectional detail Fig. 5; the
circumference of the washers or bands being of the same angle and of such diameter

page_text: as to fit the conical seating G, so that, on the stopper being operated by the spindle C
until it is pressed tight against the walls of the conical seating, the flow of the
liquid or gas is effectually stopped.
Instead of forming the seating in the tap casing A as described, it may be in the
end of thimble K as shown by Fig. 2; in which case, the inclination or taper of the
seating and stopper is reversed; the upper portion of the tap casing being constructed
as before described; or taps with reversed seatings and stoppers may be constructed
as shown by Fig. 3, which will be readily understood on reference to the drawing;
the stopper E in each case being formed and secured on the operating spindle C in
the manner as herein before described.
The end of each tap behind the conical seating, may be formed with a screwed
thread as in Figs. 1 and 3; or with an internal thread when arranged as shown by
Fig. 2, for the purpose of attaching the tap casing A to a thimble K, which is
connected in any suitable manner to the service pipe.
On a tap being unscrewed from a thimble K, free access is obtained to the stopper E
for examination and repairs; and when removed, the opening in the thimble may be
closed if desired by a screwed plug L; or in the case of a tap with its seating
arranged in the thimble K as illustrated by Fig. 2, a screwed cap similar to the one
shown in section by Fig. 6 may be used; so that by these means, the service pipe
may be utilized during the time the tap is disconnected for repairs, for supplying
other taps connected to the said pipe.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
The hereinbefore described construction of taps in which the essential feature
consists in having a conical seating and stopper so arranged that by operating the
stopper E to or from the seating G in the direction of the axis of the spindle C, the
tap is closed or opened accordingly, all being arranged and constructed substantially
in the manner shown and described.
1
1
1000