Improvements relating to Discharge Pipes of Ships' Water Closets and the like.
Year: 1898

page_text: Date of Application, 22nd Oct., 1898-Accepted, 10th Dec., 1898
COMPLETE SPECIFICATION.
Improvements relating to Discharge Pipes of Ships' Water Closets
and the like.
I, ARTHUR LAING, of Deptford Yard, Sunderland, in the County of Durham,
Shipbuilder, 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:-
My invention relates to storm valves for the discharge pipes of ships' water
closets, lavatories, baths and the like and has for its object to provide a storm
valve so constructed and arranged in regard to the discharge pipe of the water
closet that a greater efficiency of action is obtained than with storm valves as at
present in use.
In describing my invention I will refer to the accompanying drawings in
which Fig. 1 is a sectional side elevation of a storm valve and discharge pipe as
at present used. Fig. 2 is a sectional elevation of a storm valve fitted in accord-
ance with my invention to a valveless water closet and Fig. 3 is a similar view
of valve fitted to a valved closet and Figs. 4 and 5 are respectively sectional side
and front elevations of my improved storm valve and its casing.
Referring to the usual construction of storm valve shown in Fig. 1 it will be seen
that the valve A is mounted at or about the extremity of the discharge pipe P
in a casing P¹ fitted to an opening O in the ships' side S, the opening (owing
to the hinge and arrangement of the valve is necessarily more or less D shaped.
Owing to the peculiar movements of the vessel when listing over in a seaway,
it is found in practice that the valve A opens and passes water freely into the
discharge pipe on listing of the vessel towards the 'side on which it is fitted and
because of this tendency it is necessary to fit the closet with valves arranged to
prevent the gases and water in the discharge pipe gaining access to the vessel.
Now as stated it is the object of my invention to overcome these defects and
this I do by constructing and arranging the storm valve as shown in Figs. 4 and 5
in which it will be seen that the valve B is arranged to open in a direction opposite
to that of the usual storm valve A shown in Fig. 1 so that it shall tend to close
instead of open when the ship lists to the side on which it is fitted and to do this
the extremity of the discharge pipe is formed of a casing C in which the outlet c
is brought a short distance inwards and then turned backwards again towards
the side S of the ship as at c¹ in which latter part the valve B is mounted and
eated, at 6 a recess being provided in the bend opposite the valve B to receive
it when fully open so that it may not reduce the aperture so as to impede the
passage of the soil or flush passing out of the part C. To further improve
the action of the valve its seat is or may be arranged at a slight angle with the
perpendicular as shown. Also by arranging the valve as described the junction
of the discharge pipe and casing C is vertical instead of horizontal or at an
ngle and nearer the ship's side saving a considerable bend in the discharge
ipe P, which latter with the improved valves may be approximately straight
o that when a valveless closet as at E Fig. 2 is employed, as is quite possible with
PQ77

page_text: my improved storm valve, the discharge pipe P can be arranged in a very compact
manner close to the side S of the vessel and without a bend.
In Fig. 3 the improved storm valve is shown fitted to a valved closet of the kind
described in my prior Patent No. 716 of 1898, in this case both the storm valve B
and the closet valve V tend to close in the same direction thereby gaining a double
security in preventing the access of water to the discharge pipe.
By the use of storm valves constructed and arranged as described it will be
seen that such advantages as a great economy in space, simplicity of fitting and
absence of bends in the discharge pipe are obtained and the access of water to the
discharge pipe on listing of the ship to the side on which the valve is fitted is
effectually prevented the valve's tendency being to close when the ship is in this
position. By arranging a hand-hole or opening such as F with cover F¹ on each
side of the valve the seat of the latter may be readily made a good fit and the
ready access obtained thereto facilitates the insertion or removal of the valve B
for cleaning or other purposes, the valve hinge pin bis or may be passed through
the cover and secured by nuts f as shown. The opening g in the ships' side S
can be of circular form forming a clean and neat exit for the discharge pipe.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. The improved storm valve for the discharge pipes of ships' water closets
and the like so constructed and arranged that the valve shall rest upon its seat
or tend to close when the ship lists to the side on which it is fitted substantially
as and for the purposes herein set forth.
2. In storm valves the combination of valve B with casing such as C and
hand-holes on each side of valve seat, all constructed, arranged and adapted for
use and to operate substantially in the manner set forth and as described with
reference to Figs. 4 and 5 of the accompanying drawings.
3. The combination of a valveless ships' water closet and a storm valve all
constructed, arranged and adapted to operate substantially in the manner set forth
and as described in reference to and as shown in Fig. 2 of the accompanying
drawings.
4. The combination of a valved closet and a storm valve both the closet valve
and storm valve being adapted to close or tending to close on the ship listing
to the side on which they are fitted substantially as described in reference to and
as shown in Fig. 3 of the accompanying drawings.
Dated this 21st day of October 1908