New or Improved Apparatus for Automatically Adding Sanitary Fluid to Flushing Cisterns for each Discharge thereof.
Year: 1892

page_text: Date of Application, 10th Sept., 1892-Accepted, 12th Nov., 1892
SPECIFICATION.
COMPLETE
New or Improved Apparatus for Automatically Adding Sanitary
Fluid to Flushing Cisterns for each Discharge thereof.
I, WOODWARD DUDLEY, of Parkhurst House, Holly Park New Southgate in
the County of Middlesex, Plumber, 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 :-
The object of my invention is to provide a simple and inexpensive apparatus for
the purpose of automatically adding a certain quantity of disinfecting, deodorizing
or sanitary fluid to the flushing cisterns of water closets, urinals, and the like for
each discharge thereof. The apparatus consists of a vessel for containing the
sanitary fluid and adapted to be fixed inside the cistern. It is provided with two
concentrically arranged vertical tubes, the outer one fixed and the inner one capable
of reciprocal motion therein; both tubes having apertures so arranged that at one
end of its stroke a charge of the sanitary fluid will be admitted to the inner tube
and at the other end of its stroke the said charge will be discharged into the water
of the cistern.
The required motion of the inner tube is effected in one direction by the action of
the flushing water upon a float, and in the other direction by gravity. Means are
provided for preventing imprisonment or access of air, leakage and so forth.
I will describe one arrangement of my invention in reference to the accom-
panying drawings, in which
Fig. 1 is a vertical section of my apparatus in its position when the cistern is
full.
Fig. 2 is a part sectional view showing change of position on discharge of
cistern.
Fig. 3 is an enlarged section of the two tubes with slots at the point of
coincidence.
A is a vessel of any suitable size and shape and of tin, zinc or other suitable
material. It may be open at its top or closed as shown, and hung to the cistern as
illustrated or fixed by clamps or in any convenient way. In it is fixed a vertical
tube B, open at its top, and having slots, perforations or apertures b near the base
of the cistern. The tube is shown projecting slightly through the base for a
purpose hereinafter described. Concentrically with B is fitted the tube C, also
having slots or apertures c in suitable position. It carries at its top a closing cap
or washer D and at its foot a float F, above which is or may be fitted a washer f.
This inner tube C is stopped internally at any desired point by a cork or stop c',
and thus an internal chamber E is formed of any required capacity: 3 is a small
pipe for preventing imprisonment of air in E.
The slots b and c are of such size that when coinciding a free entrance is always
ensured, see Fig. 3. The lower parts of both tubes B and C may be ground or
turned and bored so as to ensure a good fit, or in large apparatus a suitable stuffing
box may be applied to prevent leakage from the vessel A to the cistern.
The sanitary fluid being stored in A, and the cistern being full, the tube C is
raised to the top of its stroke, and the slots b and c coincide as shown in Fig. 1, and
the chamber E becomes filled with the fluid. This position is maintained until the
cistern is discharged, the washer f making a tight joint with the projecting foot of
tube B, below the water level; or the closure may be otherwise suitably arranged.
On discharge the float F and tube C fall with the water, the parts taking the position
of Fig. 2; immediately the slots c fall to outside the vessel the fluid contained in E
is discharged into the water in the cistern and at the bottom of its stroke access of
air between tubes B and C is prevented by the closing of the cap D on the outer
G
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page_text: tube. I have described my invention as operating on the discharge of a cistern, but
it is obvious that by a suitable arrangement of levers it could be made to operate
and effect its purpose on the filling of the cistern, but I prefer the above described
arrangement as affording the greatest simplicity. It will be seen that an addition
of the sanitary fluid must of necessity be automatically made at each flushing and
no attention is required beyond filling the vessel A when empty.
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 :-
:-
1st. The new or improved apparatus for the purpose set forth, consisting in the
arrangement in a vessel containing the sanitary fluid of two vertical concentric
tubes, one fixed and the other capable of movement with the flushing water and
both having apertures or slots adapted in one position of the moving tube to coincidé
and admit a charge of the fluid, and in the other position to discharge said charge
into the flushing cistern.
2nd. The new or improved apparatus for automatically adding sanitary fluid to
flushing cisterns for each discharge thereof, constructed, arranged and operating
substantially in to manner and at the times herein before set forth.
Dated this 10th day of September 1892.
For the Applicant,
J. C. CHAPMAN,
70, Chancery Lane, London, W.C., Chartered Patent Agent.