Year: 1897

page_text: Date of Application (in United Kingdom), 16th Mar., 1897
Complete Specification Left, 16th Mar., 1897-Accepted, 29th May, 1897
I, FREDERICK JAMES MITCHELL, of 221 Mercer Street, New York, in the
County and State of New York, United States of America, 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 :-
The object of my invention is to provide an apparatus by which liquid may be
distributed in a certain predetermined amount at intervals which may be periodic,
cr which may be determined by the operation of other apparatus. My device is
particularly adapted for use in disinfecting systems, wherein a small quantity of
the liquid disinfectant is desired to be carried to some certain point, such as the
bowl of a closet, at intervals which may be determined for instance by the frequency
with which the closet or other device is used.
To this end it consists in a reservoir adapted to contain the requisite amount of
liquid, an auxiliary reservoir connected therewith, a plunger working in said
auxiliary reservoir and arranged to be released by the movement of some
mechanism, which may be either a pull cord or a door or other part of the structure,
and a discharge pipe communicating with the auxiliary reservoir.
It also consists in means for measuring or varying the amount of liquid supplied
at each operation of the apparatus.
It consists further in the combination and arrangement of parts and details
herein shown and pointed out in the claims.
Referring to the drawings
Fig. 1 is a front elevation partly in section of the apparatus ;
Fig. 2 is a side elevation showing the discharge pipe connected with the bowl
of a closet;
Fig. 3 is a plan of the apparatus from the top and,
Fig. 4 is a detailed sectional view of the chamber from which the discharge pipe
preferably leads, showing the preferred means which I adopt for measuring or
varying the quantity of the discharge.
In the drawings A is a reservoir, adapted to contain the required amount of
liquid, which can be poured into the reservoir through the aperture at the top,.
which is covered by the screw cap a. The auxiliary reservoir B, as shown, is
placed at one end of the reservoir A and is cylindrical in form. It communicates
with the reservoir A through the small aperture b, which is preferably placed near
the bottom of the reservoir A, and the auxiliary reservoir B also preferably
extends well below the bottom of the reservoir A, so as to enable all the liquid in
ΓΙ

page_text: said reservoir to be utilized. A loaded plunger or piston C is arranged to work
loosely in the auxiliary. reservoir B. This plunger is normally supported at some
distance from the bottom of the auxiliary reservoir B by a connection D, actuated
as may be preferred either by the door or seat of the closet or by a hand pull or
by any other suitable moving part of the structure, so that when such door or other
operating device is moved in one direction or the other as will be readily under-
stood, the plunger will be released and will descend to the bottom of the auxiliary
reservoir B. At or near the top of the auxiliary reservoir B, so as to be above
the highest liquid level, is the discharge or measuring chamber E which is by
preference internally screw threaded to receive the screw threaded plug F. The
discharge pipe G of the apparatus is connected directly with this chamber.
The plug is provided with an aperture, which is of sufficiently small size to
permit a very small flow of the liquid through it, and the top of the plug fis
provided with a slot so that the plug can be screwed up and down in the
chamber E by the manipulation of an ordinary screw-driver. Surrounding the
upper part of the auxiliary reservoir B'and the chamber E is an overflow cup H,
which communicates with the reservoir A through the openings h.
For the purpose of securing the structure in operative position I provide the
reservoir A with two or more tubes a', which extend through the reservoir from
side to side. Through these tubes screws or bolts a² are inserted and pass into the
wall or other structure to which it is desired to secure the apparatus. It is
essential that the apparatus should be placed above the point of supply in order
that the liquid may be delivered by gravity thereto through the pipe G, and the
special means which I show for permitting the same to be so secured possess the
advantage of permitting either side of the reservoir to be turned toward the wall.
In this manner the apparatus may be secured at either side of the closet.
I will now describe the operation of my device as it is used by me in supplying
liquid disinfectant to a water closet bowl, although I do not intend to limit my
invention to that specific use.
The reservoir A is secured in proper position above the closet bowl so that the
discharge pipe G can be led into the bowl. The reservoir A is filled with the
liquid disinfectant to be used, which may for instance be a solution of chloride of
zinc. From the reservoir A the liquid will slowly flow into the auxiliary
reservoir B through the aperture 6. The plunger is then arranged in the
auxiliary reservoir B, some distance above the bottom of the reservoir, and is, by
the connection D, secured to the door by which the closet is entered, or to the seat of
the closet, or to any other moving member of the structure, by which the requisite
movement may be obtained to cause the plunger to descend to the bottom of the
auxiliary reservoir B when the operating member of the structure is moved: If,
for instance, the plunger be connected with the door of the closet the connections
are so arranged and adjusted that when the door is opened the plunger C by its
weight will desceud quickly to or very near the bottom of the auxiliary reservoir B.
The reverse of this arrangement may be employed if desired, so that the closing
of the door will cause the plunger to descend, and although I prefer that the
plunger should be heavy enough to descend by gravity, yet it is obvious that a
spring may be used to cause or assist in causing its descent.
The screw plug F is then adjusted in the chamber E, so that that portion of said
chamber above the plug would contain, if filled, substantially the amount of liquid
required to be delivered at each operation.
Owing to the restricted area of the aperture 6 the descent of the plunger C,
released as above described, will force the liquid in the auxiliary reservoir up
around the sides of said plunger and cause it to flow over the top of said
auxiliary B, a portion thereof (enough to entirely fill it) entering the chamber E
and the remainder passing into the overflow cup H, whence it' will drain back into
the reservoir A, so that it is not wasted. As the supply is sudden and the aperture
in the plug F is comparatively restricted, this sudden overflow of the liquid will
completely fill the chamber E, which thus serves to measure the amount of the

page_text: discharge. From the chamber E the liquid will gradually flow through the-
restricted aperture f in said plug and the discharge pipe G to the closet bowl.
It is obvious that the space between the sides of the auxiliary reservoir B and
the plunger C should be just sufficient to permit the required amount of liquid to.
be forced up readily without materially retarding the descent of the plunger. If
desired also the flow through the aperture may be restricted by placing therein
any suitable porous substance as shown in Figure 3.
به
The advantages of my apparatus are its simplicity and reliability, due in a great.
measure to the fact that I am enabled to dispense entirely with valves, and also to.
the fact that the quantity of liquid discharged at each operation does not depend
at all on the amount of liquid in the reservoir A, since the delivery when the
apparatus is once adjusted is constant whether the reservoir A is full or nearly
empty.
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. In apparatus for delivering liquid the combination with a reservoir A of an
auxiliary reservoir such as B, a plunger arranged in the auxiliary reservoir, a
discharge pipe connecting with the upper part of the auxiliary reservoir, and.
a passage through which the liquid may rise in the auxiliary reservoir and enter-
the discharge pipe as the plunger descends, substantially as described.
2. In apparatus for delivering liquid the combination with a reservoir A of an.
auxiliary reservoir such as B, a loosely fitting plunger arranged in the auxiliary
reservoir, a discharge pipe connecting with the upper part of said auxiliary reservoir,
and means for actuating the plunger so as to displace the liquid in the auxiliary
reservoir and cause it to rise therein and flow into the discharge pipe as the plung r-
descends, substantially as described.
3. In apparatus for delivering liquid, the combination with a reservoir A of an
auxiliary reservoir such as B, a plunger arranged in the auxiliary reservoir, means.
for actuating the same, a discharge pipe communicating with the upper part of the
auxiliary reservoir and an overflow cup around the top of the auxiliary reservoir-
communicating with the reservoir A substantially as described.
4. In apparatus for delivering liquid, the combination with a chamber such as E.
to receive the liquid, of an adjustable perforated plug forming the bottom of this
chamber, substantially as and for the purpose described.
5. In apparatus for delivering liquid the combination with a chamber such as E.
to receive the liquid of a screw threaded perforated plug adjustable in this chamber
for regulating the quantity of liquid discharged, substantially as described.
6. In apparatus for delivering liquid, the combination with a reservoir A of an.
auxiliary reservoir such as B, a plunger C working therein, connections for
actuating the plunger, a chamber such as E communicating with the upper part of
the auxiliary reservoir B, an adjustable perforated plug in the chamber E and a
discharge pipe connected with this chamber, substantially as and for the purpose.
described.
7. The combination and arrangement of parts constituting the complete apparatus
for delivering liquids substantially as described and illustrated in the accompanying:
drawings.
BOULT & WADE,
Agents for the Applicant..