Improvements in Apparatus for Automatically Regulating the Supply of Precipitating Materials to Sewage and for other Analogous Purposes.
Year: 1891

page_text: Date of Application, 14th Feb., 1891
Complete Specification Left, 14th May, 1891-Accepted, 20th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Automatically Regulating the
Supply of Precipitating Materials to Sewage and for other
Analogous Purposes.
I JOHN EDWIN KEIRBY of Swinton, in the County of Lancaster, Engineer do
hereby declare the nature of my said invention to be as follows :-
These improvements relate to the apparatus for supplying ferrezone and other
like precipitating materials to sewage for which applied for Letters Patent,
No. 502 on the 10th January 1891, and consist in utilising the rise and fall of the
sewage for operating the regulating screw and so automatically controlling the
supply of precipitating material.
In carrying out my invention I employ a chain wheel or its equivalent keyed to
and mounted on the regulating screw, described in my former Specification, and
around which chain wheel a chain passes one end of which is led over suitable guide
pulleys and terminates either in a sump hole or in the main outfall drain where it is
attached to a wooden or other suitable float. The other end of the chain is also
led over guide pulleys and has secured to its extremity a weight or series of weights
to counterbalance the action of the float.
It will now be apparent that as the level of the water passing through the sump
hole or main outfall drain rises or falls, the float will simultaneously rise or fall and
so cause the chain wheel on the regulating screw to turn a fraction of a revolution
and thus automatically increase or diminish the supply of precipitating material.
These improvements also afford a means of determining the volume or quantity
of sewage received per day or for any other given length of time as by providing
the chain with a pointer and a corresponding index board fixed at one side thereof
the rise and fall of the float and the consequent increase or decrease of sewage
will be indicated.
In the case of storm water the chain wheel is so mounted as to be readily
disconnected from the regulating screw, the regulating handle being alone used to
regulate the supply.
Dated this 12th day of February 1891.
JOHN G. WILSON,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Automatically Regulating the
Supply of Precipitating Materials to Sewage and for other
Analogous Purposes.
I JOHN EDWIN KEIRBY of Swinton in the County of Lancaster, Engineer do
hereby declare the nature of my said invention and in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement:-
These improvements relate to the apparatus for supplying ferozone lime and
other like precipitating materials to sewage for which I applied for Letters Patent
To. 502 on the 10th January 1891 and relate to means for utilising the rise and
or increase or decrease of flow of the sewage for operating the regulating screw
ɔ automatically controlling the supply of precipitating material,

page_text: And in order that this my said invention may be the more readily understood
and carried into practical effect I have hereunto annexed a sheet of drawings
illustrative of my improvements and will now proceed to describe the same with the
assistance of the various figures and letters of reference marked thereon.
Fig. 1 is a side elevation of my apparatus for supplying precipitating material
(as described in my former Specification hereinbefore refered to) with my improve-
ments applied thereto.
Fig. 2 is a portion of Fig. 1 drawn to an enlarged scale.
In accordance with my invention I employ a chain wheel A to drive the
regulating screw B by means of a key and key-way or equivalent mechanical
device so as to drive the screw positively but be capable of disengagement as
hereinafter described. Around this chain wheel a pitch chain C is passed one end
of which is led over a suitable guide pulley D and terminates either in a sump hole
or chamber or in the main outfall drain and is there connected to a wooden or other
suitable float E whilst the other end of the chain is led over a similar guide pulley
and has a weight or series of weights Fat its extremity to partially counterbalance
the float E.
The regulating screw B as in my former Specification serves to operate the
lever G and control the cone H and so vary the supply of precipitating material.
In this manner it will be apparent that as the level of the sewage passing through
the sewage chamber or through the main outfall drain rises or falls and the flow
increases or decreases the float will simultaneously rise or fall and operate the
regulating screw B and automatically increase or decrease the supply of pre-
cipitating material.
This arrangement also affords a means of indicating the volume or flow of sewage
per day or for any other unit of time as by providing the chain C with a pointer I
arranged to travel over an index board f with suitable divisions the rise and fall
of the float and the consequent increase or decrease of sewage will be indicated.
In order however to render the apparatus much more compact and sensitive I
prefer to employ the disc or dial plate K (see Fig. 2) surrounding the regulating
screw B (described in my former Specification) and graduated or marked off with
suitable divisions or degrees (as seen more clearly in Fig. 3).
Above this dial K and affixed to the regulating screw B the index finger or
pointer L is arranged which as the screw revolves moves over the face of the dial K
and indicates the volume of sewage flowing.
And in order to give the needful adjustment of the apparatus so as to alter the
proportion that may be desirable between the precipitating material and the sewage
I employ a supplementary regulating screw M (see Fig. 2) the upper extremity of
which abuts against the lower end of the main regulating screw B whilst the lower
end screws into the longer arm of the operating lever G.
This supplementary screw is provided with a pointer N and a dial plate o (seen
more clearly in Fig. 4) and its function is to adjust the position of the cone H
through the lever G to give the required proportion of precipitating material per
gallon of sewage and the dial plate o is marked accordingly. The screw B acting
upon the head of this supplementary screw M under the movement of the float E
varies the position of the cone with regard to the volume of sewage flowing at the
time. It will thus be seen that the attendant can at any time alter the proportion
of the precipitating material by moving the pointer N to suit the varying qualities
of sewage and without interfering with the automatic action of the main screw B.
In case of storm water I provide means for disconnecting the chain wheel A from
the screw B by means of the hand-wheel Q working loosely in the upper part of
the screw B and which is provided with a forked connection R with pins or studs S
entering the groove T formed in the boss U of the chain wheel. By raising th
hand wheel the chain wheel A can be lifted out of driving contact with
key way by which it drives the screw B and the operating of the float E is en
suspended for the time being.

page_text: Having thus particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that I do not confine
myself to the precise details relative proportions or dimensions of the several parts
constituting my improvements as the same may be considerably varied without
departing from my invention but what I claim is :-
The combination of my automatic regulating and indicating device with my
improved apparatus described in my former Specification for supplying precipitating
material to sewage substantially as hereinbefore described and illustrated on the
accompanying drawing.
ليمي
.
2001
JOHN G. WILSON,.
Agent for the Applicant.