Improved Valve or Plug for Lavatory Basins and other Purposes.
Year: 1889

page_text: Date of Application, 15th Oct., 1889
Complete Specification Left, 8th July, 1890-Accepted, 30th Aug., 1890
PROVISIONAL SPECIFICATION.
Improved Valve or Plug for Lavatory Basins and other Purposes.
A communication from abroad by HARRIET JANE DUXBURY, of Colombes, in the
Department of Seine, France.
I, PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane in the County of
Middlesex Fellow of the Institute of Patent Agents do hereby declare the nature of
this invention to be as follows:-
This invention relates to an improved valve or plug adapted to permit of both the
ingress and egress of water to or from the vessel to which it is attached. It is thus
especially adapted for lavatory basins as a single fitting will suffice for both the fresh
and the waste water.
The improved valve or plug when fitted to a lavatory basin may occupy the place
of the ordinary plug. It consists of a central tube for the waste water having a plug
of any description (preferably hinged thereto), this tube being connected by a per-
forated plate or by webs with an external annular casing which forms the outer wall
of the concentric supply pipe. An annular tapered plug screwing on to the outside of
the discharge tube serves to close the space between the two pipes. This plug has a
handle or operating device attached to it so that when it is unscrewed and opened
fresh water will be admitted to the basin or vessel, the supply being shut off when the
plug is screwed home.
Dated this 15th day of October 1889
COMPLETE SPECIFICATION.
Improved Valve or Plug for Lavatory Basins and other Purposes.
A communication from abroad by HARRIET JANE DUXBURY, of Colombes, in the
Department of Seine, France.
I, PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane in the County of
Middlesex, Fellow of the Institute of Patent Agents, 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 an improved valve or plug adapted to permit of both the
ingress and egress of water to or from the vessel to which it is attached. It is thus
especially adapted for lavatory basins as a single fitting will suffice for both the fresh
and the waste water.
The improved valve or plug when fitted to a lavatory basin may occupy the place
of the ordinary plug. It consists of a central tube for the waste water having a plug
of any suitable description, this tube being connected by a perforated plate or by
webs with an external annular casing which forms the outer wall of the concentric
supply pipe. An annular tapered plug screwing on to the outside of the discharge
tube serves to close the space between the two pipes. This plug has a handle or
operating device attached to it so that when it is unscrewed and opened fresh water
will be admitted to the basin or vessel, the supply being shut off when the plug is
screwed home.
In the accompanying drawings ;-
Fig. 1 is a vertical section through the whole apparatus with the plug and stem
11

page_text: Fig. 3 is an elevation of Fig. 1, but taken at right angles thereto.
Fig. 4 is a plan of Fig. 3 and Fig. 5 is an inverted plan of Fig. 2.
Like letters represent similar parts throughout the drawings.
A is the central tube down which the waste from the basin passes and B is the
plug for closing this tube. In Fig. 1 this plug is shown provided with a stem B'
connected at its upper end with the plug and at its lower end passing through the
sleeve or bearing A¹ secured to the tube A. The spindle B¹ is shown provided with
pins B2 B³ the former of which B2 prevents the plug and stem from rising too high
by reason of its meeting the sleeve A'; and the latter of which B³ is placed in such
a position on the stem B that it either enters the slot or groove A² carried partly
through the sleeve A¹ when the plug is closed as shown in Fig. 1 or rests upon the
top of A¹ when the plug is open, thus retaining it open if the stem be turned slightly
round. Other devices however may readily be provided for effecting the same purpose.
Around the central tube A is an external annular casing C into or upon the upper
end of which fits the annular plug or valve D shown closed in Fig. 1 in full lines and
open in dotted lines. This annular valve is adapted to make a tight joint by any
suitable means with the annular casing C and this would generally be done in the
manner shown in the drawings by tapering the seating in the casing C and tapering
the periphery of the plug or valve D to match. D is provided with a handle E or
other equivalent means for turning it, the handle being preferably hinged or jointed
to D so as to be capable of being turned either up or down as in Figs. 1 or 3. The
upper portion of D is a flat annulus which carries a projecting tube or collar D¹ which
is adapted to screw on to an external thread formed upon the outside of the tube A.
When D is screwed tight down the space between the tube A and the casing C is
hermetically closed and when D is screwed up as in the dotted position in figure 1,
that space is opened. It will be understood that D has to make two tight joints, one
with the casing C and the other with the tube A so as to prevent water leaking past
the screw threads although with a tight fitting screw and a low pressure of water
this inner joint might be dispensed with and these would both be usually accomplished
by means of tapered seatings into which the valve D fits when screwed down although
tight joints may readily be formed upon rubber or equivalent seatings. The extension D¹
of the valve D could if preferred be adapted to screw into the interior of the casing C
instead of upon the exterior of the tube A; the latter arrangement however is
preferred.
In the device shown in Fig. 1 the supply of clean water is provided by means of
the openings C¹ formed in the casing and with which a pipe for the conveyance
of the water may be connected unless the casing C be situated within the supply
of water when the opening C¹ will be sufficient. The waste escapes by the lower
end of the tube A with which the waste pipe may be connected in any convenient
manner.
In the form shown in Fig. 2 the construction and operation are substantially
the same as in Fig. 1 but the plug B instead of being provided with the stem
shown in Fig. 1 is hinge-jointed at F, the plug being provided with a knob B
also shown in Figs. 1 and 2 or it may be nicked so as to be raised by the thumb
nail. In this arrangement to facilitate the proper fitting of the plug into its seating
and to prevent the edge B³ from damaging the seating when the plug is opened or
closed provision such as the slot F¹ shown in Fig. 2 may be made which will allow
lateral travel to the plug. In Fig. 2 also the entrance of the clean water takes place
at the bottom of the casing C₁ by the entrance openings C² instead of being at the
side as in Figure 1, the waste water being carried off by the end of tube A as
before.
Having now particularly described and ascertained the nature of the said invention
as communicated to me by my foreign correspondent, and in what manner the same is
to be performed, I declare that what I claim is :-
1. In a plug or similar device for lavatory basins and the like the combination with
a central waste pipe of a surrounding clean water supply the said waste pipe being

page_text: closed by a simple plug and the clean supply being closed by an annular plug or valve
substantially as described and illustrated in the accompanying drawings.
2. In a plug or similar device for lavatory basins and the like the employment of
an annular plug or valve adapted to make both an internal and an external tight joint
substantially as described and illustrated in the accompanying drawings.
3. In a plug or similar device for lavatory basins and the like an annular valve
such as D provided with internal and external bearing faces and adapted to be screwed
up to its seatings substantially as described.
4. A fitting for lavatory basins and the like comprising a tube such as A provided
at its upper end with internal and external valve seatings and screwed on its outside
and a casing such as C provided at its upper end with an internal seating substantially
as described and illustrated in the accompanying drawings.
5. The combination and arrangement of parts constituting the complete waste and
supply fitting for lavatory basins and the like substantially as described and illustrated
in the accompanying drawings.
1000
PHILIP M. JUSTICE.
W. P. Thompson & Boult,
Agents for the Applicant.