An Improved Water Waste Preventer.
Year: 1894

page_text: Date of Application, 6th Nov., 1894-Accepted, 8th Dec., 1894
COMPLETE SPECIFICATION.
An Improved Water Waste Preventer.
I THOMAS JENKINS of No. 58 North Street, Clapham in the County of Surrey,
Builder 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 that description of water waste preventer where the
whole of the apparatus employed is enclosed in a special cistern, and it consists of
improvements in the construction of such apparatus whereby a syphonic action is
set up by the lifting of a portion of the water contained inside a cylinder and the
continuance of such syphonic action is secured until the cistern is emptied.
The arrangement of parts whereby the syphonic action is obtained prevents
any further outflow of water until the cylinder is again raised and thus prevents
waste.
The apparatus necessary to securing these results consists of a cistern of small
dimensions which has fixed to and projecting upwards from its bottom a stand pipe
the upper end of which is open and bell mouthed. Surrounding and enclosing
this stand pipe are two cylinders, concentrically disposed to each other and to the
stand pipe. The outer of these two cylinders is closed at the top and open at the
bottom where it sets down upon the bottom of the cistern and is capable of being
lifted together with the inner cylinder by means of a lever. The inner cylinder
is open at the top and partially closed at the bottom, leaving only a hole at the
bottom sufficiently large for it to slide freely on the stand pipe.
A ball valve of the ordinary kind is used to control the supply of water to the
cisteru.
In order that my invention may be fully understood, I append hereto two sheets
of drawings in which like letters indicate similar parts, or parts fulfilling the same
functions.
Figure 1. is an elevation of apparatus, the cistern being in section.
Figure 2. is a transverse vertical section, through centre of stand pipe.
Figure 3. is a longitudinal vertical section, through centre.
Figure 4. is a plan.
A designates the cistern, which is here shewn as rectangular but may be of any
shape suitable to contain the apparatus and any desired quantity of water. It has
a circular depressed portion a in the centre of its bottom. B is a valve which is
operated by a ball C in the ordinary manner for the purpose of admitting water to
the cistern from the service pipes, or other source. D is the outer cylinder having
a closed end d and being flattened into an ellipse at the points d' where it touches
and is fastened to the inner cylinder E. This inner cylinder E has its upper end
open but its lower end is partially closed by the annular flange e the hole in which
is sufficiently large to enable the cylinder to slide up and down the enclosed stand
pipe G. which communicates at its bottom with the outlet or escape pipe, and the
top of which is bell mouthed at g. The outer cylinder D and the inner
cylinder E are fastened together by stays or other convenient means, and both
are free to be raised by the operation of the lever H (which is pivoted on the
cistern at the point marked h) or by any other suitable device. These two attached
cylinders when in their normal position rest upon a ring L of any suitable material.
The annular space between the two cylinders D and E forms a passage or
channel X for the upward flow of the water, and thus enables it to overflow and
pass downward through the interior Z of the stand pipe.

page_text: Instead of the cylindrical or elliptic form of the cylinders D and E, they may be
of any other suitable shape.
The operation is as follows:-Assuming that the normal condition exists as
shewn in Figure 3;-If the outer end of the lever H be depressed, the cylinders D
and E will be raised, a short distance, and that portion of the water which is
contained between the inner cylinder E and the stand pipe G, will be raised by
the annular flange e, and caused to flow over the upper edge g into the stand pipe G.
The syphonic action being once set up the whole of the water contained in the
cistern will by a well known natural law pass between the lower raised end of the
outer cylinder D, into the upward passage X, and down through the interior Z
of the stand pipe G, into the outlet or escape pipe.. During the whole of the time
of outflow the cylinders have been supported by the water but as soon as all
this has escaped, the cylinders will descend to their normal position, and the
water flowing in through the ball valve B the cistern will once more fill and the
joints between the bottom of the cylinders and the ring L, and between the annular
flange e and the standpipe being imperfect, the water passes slowly in and assumes
the same level as in the cistern.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1. The water waste preventer substantially as shewn and described.
2. In a water waste preventer, setting up or commencing a syphonic action
by lifting a portion of the water contained therein, substantially as shewn and
described.
3. In a water waste preventer, the two cylinders, the space between which forms
a passage or channel for upward flow of the water from the cistern, substantially as
shewn and described.
4. In a water waste preventer, the combination of a cistern, an outer cylinder
open at the bottom only, an inner cylinder with a water lifting flange, and a
standpipe substantially as shewn and described.
Dated this 6th day of November 1894.
WILLIAM J. MUNDEN,
106, Priory Park Road, Kilburn, N.W., Agent for the Applicant.