IMPROVEMENTS IN APPARATUS FOR FILTERING
Year: 1882

page_text: Com-
PROVISIONAL SPECIFICATION left by William Phillips Thompson at the
Office of the Commissioners of Patents on the 15th November 1882.
municated to him from abroad by Augustus Henry Horsnell and William
Murphy both of the city of Montreal in the district of Montreal and province
of Quebec Canada,
WILLIAM PHILLIPS THOMPSON of the Agency for Foreign Patent Solicitors,
6 Lord Street Liverpool in the county of Lancaster, and of 323 High Holborn in
the county of Middlesex Civil Engineer " IMPROVEMENTS IN APPARATUS FOR
FILTERING." A communication to me from abroad by Augustus Henry Horsnell
and William Murphy both of the City of Montreal, in the District of Montreal and
province of Quebec, Canada.
This invention has for its object to provide means whereby the water flowing
from a tap, or pipe, may be thoroughly filtered through a permanent attachment
which will also permit of the full stream being drawn for washing purposes,
etcetera, without its being filtered, when desired; the improvements are also so
devised that the filtering medium can be reversed at will: perfect cleanliness being
thus assured. Near the mouth or front end of an ordinary water tap or faucet is
formed an enlargement bored to a section (preferably conical) corresponding to that
of a spigot to be inserted and secured in place by a nut and washer or in any other
desired manner.
This spigot is cast preferably in the form of a double T the filtering medium
(which is formed preferably of a solid piece of carbon, or charcoal) being placed
centrally between the ends an opening being left therefor through the substance of
the spigot. This filtering medium preferably preserved in place by screens of
fine wire cloth placed one on each side of the same and soldered to the substance of
the spigot.
When the tap or faucet is open and the spigot turned the water can flow freely
from the pipe, and pass through the filtering medium which will entirely cleanse
the stream from all foreign matters, and allow it to be drawn pure from the outlet.
In some instances it will be desirable to dispense with the filter, such as when
the water is to be used for washing and other like purposes, in such cases it is only

page_text: necessary to turn the spigot lever in either direction for one quarter of the circle to
allow the water to flow freely through the space between the wire screens and the
outer face of the spigot, and then to reverse the action of the filter, (or cause the
water to pass through the opposite side of the filtering medium for the purpose of
cleansing same) a turn for another quarter of the circle in the same direction is all
that is required.
Although here described as placed in front of the ordinary faucet or between it
and the outlet, it must be understood that the spigot and its filter may be placed
behind same, or in any position along the water pipe.
If desired the screens may be dispensed with and the solid block of charcoal be
merely fastened in place by narrow bands across its ends or in any other suitable
manner.
1.
When the invention is to be applied at once to the ordinary tap in a household
it is proposed to make the filter of any suitable shape and coat the inside of one of
its ends with shellac or other adhesive substance so that by heating the outlet
end of the ordinary tap and slipping the filtering attachment thereon the same
will be permanently held in place without the necessity of screwing either part.
r