An Improvement in Feeding Apparatus for Filters.
Year: 1890

page_text: Date of Application, 18th Oct., 1890
Complete Specification Left, 17th July, 1891-Accepted, 22nd Aug., 1891
PROVISIONAL SPECIFICATION.
An Improvement in Feeding Apparatus for Filters.
I, RICHARD MORRIS of Bennett Park, Blackheath, in the County of Kent,
Engineer, do hereby declare the nature of this invention to be as follows:-
When a filter is fed by the opening of a ball cock having its float on the water
in the upper part of the filter, the feed continues until the whole of the filter from
the bottom upwards is charged to the level at which the ball cock becomes closed.
This is objectionable because thus the filtering material can never be freed from
water so as to become aërated. When again the filter is fed by a ball cock having
its float on the filtered water in the lower part of the filter, too much water is fed
into the upper part because it takes a considerable time for so much of this water
to percolate through the filtering material as will raise the float below sufficiently
to close the cock.
My invention relates to means of avoiding these inconveniences, which I effect in
the following manner. I provide a ball cock and float to feed the upper part of
the filter and in the lower part of the filter containing the filtered water provide
a float from which a rod extends upwards immediately under the lever of the upper
float.
Whenever the water in the lower part of the filter attains a certain determined
level, the float in that part rises and its rod being thus raised, prevents the upper
float lever. from descending and thus cuts off fresh supply of water until the level
of the filtered water below is lowered sufficiently to let the upper float lever
descend opening the ball cock. In the case of filters in which the successive
compartments are arranged on the same level o: nearly so, the feed of the first or
entering compartment is controlled as above described by a float on the filtered
water contained in the last compartment.
Dated thin 10th day of October 1800
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improvement in Feeding Apparatus for Filters.
I, RICHARD MORRIS of Bennett Park, Blackheath, in the County of Kent,
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 :-
When a filter is fed by the opening of a ball cock having its float on the water
in the upper part of the filter, the feed continues until the whole of the filter from
the bottom upwards is charged to the level at which the ball cock becomes closed.
This is objectionable because thus the filtering material can never be freed from
water so as to become aërated. When again the filter is fed by a ball cock having
its float on the filtered water in the lower part of the filter, too much water is fed
into the upper part because it takes a considerable time for so much of this water
to percolate through the filtering material as will raise the float below sufficiently
to close the cock.
My invention relates to means of avoiding these inconveniences, which I effect in
the following manner. I provide a ball cock and float to feed the upper part of
the filter and in the lower part of the filter containing the filtered water I provide
a float from which a rod extends upwards immediately under the lever of the
upper float.

page_text: Whenever the water in the lower part of the filter attains a certain determined
level, the float in that part rises and its rod, being thus raised, prevents the upper
float lever from descending and thus cuts off fresh supply of water until the level of
the filtered water below is lowered sufficiently to let the upper float lever descend
opening the ball cock. In the case of filters in which the successive compartments
are arranged on the same level or nearly so, the feed of the first or entering
compartment is controlled as above described by a float on the filtered water
contained in the last compartment.
Fig. 1 is a vertical section and Fig. 2 is a sectional plan of a filter with floats
agranged to operate according to my invention. Fig. 3 is a vertical section
shewing a slightly modified arrangement.
In the upper compartment A which receives supply of water to be filtered,
I provide a ball cock or valve B with its float C and lever D as usual. In the
lower compartment F which receives the filtered water I arrange a float G,
which may be attached to a lever H as shewn in Fig. 1, with a rod R jointed
to the lever, or which may be attached directly to the rod R as shewn in Fig. 3.
This rod in either case extends up to meet a stop K attached to the lever D of the
ball valve B, so that this lever is held up until the level of the water in the lower
compartment F becomes so far lowered that the float C and lever D can descend
sufficiently to open the feed valve B. When the upper compartment A is
sufficiently charged, the valves become closed again, but it may open repeatedly
charging the upper compartment until there is so much filtered water in the lower
compartment that the float C is again prevented from descending.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I claim :-
་
In a filter, in combination with the float valve for feeding the supply compart-
ment, a float in the compartment which receives the filtered water, arranged and
operating substantially as and for the purpose herein set forth.
Dated this 16th day of July 1891.
ABEL & IMRAY,
Agents for the Applicant.