Improvements in Baths.
Year: 1891

page_text: Date of Application, 2nd Mar., 1891
Complete Specification Left, 1st Dec., 1891-Accepted, 9th Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Baths.
I, OSCAR ELPHICK, of the Lambeth Sanitary Engineering Works, Albert
Embankment, in the County of Surrey, Engineer, do hereby declare the nature of
this invention to be as follows:-
In cast metal baths in which the waste or outlet valve has a tubular stem
rising upwards from it through a tubular chamber cast on the exterior of the
foot end of the bath and which serves as an overflow outlet, in place of leading
away the waste outlet pipe from the bottom of this tubular chamber as heretofore
I cast the bath in one piece with such tubular chamber closed at the bottom
but with a side outlet so that a small quantity of water may be always retained
at the bottom of the chamber and the bottom of the chamber thus made to
form a trap well. The valve seat of the waste or outlet valve I secure by two
lugs. on side of circular dip piece and two wedges terminating level with face
of opening which is formed across the tubular chamber and I form the seat
with a tube descending from it and dipping into the water at the bottom of the
tubular chamber so that the waste outlet from the bath is always trapped.
The tubular chamber is formed with a sideway extension from it cast on the bath
extending for a short distance below the bottom of the bath and an opening into it
is formed through the bottom of the bath.
This opening may afterwards be fitted with a removeable grating and the grating
may be held down by a rod extending downwards from it through the bottom of
the sideway extension and having a nut screwed on to its end or other means.
Dated this 28th day of February 1891.
OSCAR ELPHICK.
COMPLETE SPECIFICATION.
Improvements in Baths.
1, OSCAR ELPHICK, of the Lambeth Sanitary Engineering Works, Albert
Embankment, in the County of Surrey, Engineer, 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 :-
In cast metal baths in which the waste or outlet valve has a tubular stem
rising upwards from it through a tubular chamber cast on the exterior of the
foot end of the bath and which serves as an overflow outlet, in place of leading
away the waste outlet pipe from the bottom of this tubular chamber as heretofore
I cast such tubular chamber closed at the bottom but with a side outlet so that
a small quantity of water may be always retained at the bottom of the chamber
and the bottom of the chamber be thus made to form a trap well. The valve
seat of the waste or outlet valve I secure in an opening in a diaphragm or
partition which is formed across the tubular chamber and I form the seat with
a tube descending from it and dipping into the water at the bottom of the
tubular chamber so that the waste outlet from the bath is always trapped.
The tubular chamber is formed with a sideway extension from it cast with the
bath and extending for a short distance below the bottom of the bath and an opening
into this extension is formed through the bottom of the bath. This opening may
afterwards be fitted with a removable grating.
In order that my said invention may be fully understood and readily carried
into effect I will proceed to describe the drawing hereunto annexed.

page_text: DESCRIPTION OF THE DRAWING.
The drawing represents a vertical section of a portion of a cast iron bath formed
in accordance with my invention.
a is the bath properly so called. is the tubular valve chamber cast with it.
e is the waste or outlet valve with its tubular stem c¹. The valve which may be of
india rubber is shown raised from its seat; it is lifted in the usual manner by means
of a rod, not shown, attached to the stem c¹ and passing out through a guide passage
at the top of the chamber b.
The stem c' of which a part only is shewn in the drawing is open at the upper
end, and it serves as an overflow pipe, its length being suitable. is a lateral
extension of the chamber & beneath the bottom of the bath, there is an aperture a¹
in the bottom by which when the bath empties the water passes out into the
chamber b. The aperture a' receives a grating. The chamber descends below
the lateral extension and terminates at a closed end or bottom. This lower
part of the chamber has an outlet at 3 a short distance from the bottom so
that the lower part of the chamber cannot run empty. The outlet orifice ³ is
provided with a nozzle or coupling & which is connected with a drain in the usual
manner. The lower part of the chamber is separated from the upper by a
partition with an aperture into which the valve seat d is fitted; it has a packing
ring beneath it and is held down in its place by screws passing through lugs
provided upon the valve seat, or by running in with sulphur or other material.
The valve seat has a funnel like continuation d' which extends down and dips
sufficiently far into the water which the lower part of the chamber 6 will contain,
to form an efficient trap.
In place of the stem c¹ serving for the overflow a valve with a solid stem may be
employed and a separate overflow provided as is indicated in dotted lines at e.
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. A. cast metal bath substantially as described and shown.
2. The combination of parts consisting of the bath a, and its outlet aperture a¹,
the chamber b, its lateral extension ', its closed end or bottom, its outlet ³, and
its partition separating it into two parts and receiving the valve seat, the afore-
said parts with the exception of the valve seat, being all cast in one piece
substantially as described.
Dated this 28th day of November 1891.
OSCAR ELPHICK.