IMPROVEMENTS IN AND CONNECTED WITH PROVISIONAL
Year: 1883

page_text: LETTERS PATENT to Frederick Piercy of Pall Mall East in the City of
Westminster for an Invention of IMPROVEMENTS IN AND CONNECTED WITH
PROVISIONAL SPECIFICATION left by the said Frederick Piercy at the Office
of the Commissioners of Patents on the 12th June 1883.
FREDERICK PIERCY of Pall Mall East in the City of Westminster "IMPROVE-
MENTS IN AND CONNECTED WITH WATERCLOSETS
"
My Invention relates to the ventilation of waterclosets and has for its object to
provide means of carrying off foul gases which may escape from the closet when
the valve is opened for the purpose of emptying the basin after use and to enable
the lift up handle to be raised for the purpose of opening the said valve, after the
lid of the closet seat is closed, and to at all times prevent such gases from
contaminating the atmosphere of the apartment.
In carrying out my Invention I make an aperture in the seat cover over the
basin and connect thereto a flexible ventilating pipe leading into a fixed pipe
which opens into the external air. I further provide indiarubber or other packing
rings around the aperture in the closet seat or round the edge of the basin or on
the underside of the seat cover or both or other means of ensuring an airtight joint
And I also provide an
between the basin and cover when the latter is closed.
aperture in the seat cover through which the lift up handle may be raised when
the cover is closed down to enable the valve to be opened and the closet basin to
be emptied whilst all communication between the basin and the atmosphere of the
apartment is completely cut off by the means above described.
In order to ventilate the basin whilst the closet is in use and so carry off foul
gases as they arise I may provide artificial means of creating an up draught in the
exit or ventilating tube, such as a gas or lamp frame suitably arranged in
connection with said tube and which may be so applied as to serve also for the
purpose of illumination when required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Frederick Piercy in the Great Seal Patent Office on the 12th December
1883.
FREDERICK PIERCY of Pall Mall East in the City of Westminster
MENTS IN AND CONNECTED WITH WATER CLOSETS"
"IMPROVE-
My Invention relates to the ventilation of water closets and has for its object to
provide means of carrying off foul gases which may escape from the closet or soil
pipe when the valve is opened for the purpose of emptying the basin after use, and
to enable the lift up handle to be raised for the purpose of opening the said valve
after the lid of the closet seat is closed, and to at all times prevent such gases from
contaminating the atmosphere of the apartment.
In order that my invention may be better understood I will describe the same
with reference to the accompanying drawings.
In carrying out my Invention I make an aperture at B in the seat cover over
the basin and connect thereto a composite ventilating pipe or tube made up of two
tubular portions C. C. of metal or vulcanite and a tubular intermediate portion D
of indiarubber or leather forming a hinge and uniting the parts C. C. The India-
rubber portion D allows of the lid being lifted when the closet is in use as in
figure 2, the hinges E of the cover or lid for this purpose being preferably arranged
on the side over which the ventilating pipe is carried. The ventilating pipe may
either proceed directly into the open air or may be carried up the wall and open
into the atmosphere at any convenient point.
I further provide Iudia rubber or other packing rings g on the undersurface of
the lid or cover to fit closely to the aperture of the closet seat and carefully fill
with cement or putty or other filling, the space between the edge of the pan and
the under side of the seat. To facilitate the latter operation I groove the upper
edge of the pan as seen at H in figure 3 which is a section of the pan, and fill in
with the cement or other filling The object of the ring g on the lid is to
effectually prevent the escape of gases or effluvia into the apartment when the
valve is raised, and the filling between the edge of the pan and the underside of
the seat is for the same purpose.
I also provide an aperture A in the seat cover through which the lift up handle
may be raised when the cover is closed down to enable the valve to be opened aud
the closet basin to be emptied whilst all communication between the basin and the
atmosphere of the apartment is completely cut off by the means above described.
Having described the nature of the said Invention and the manner of performing
the same I declare that what I claim as the Invention to be protected by the
hereinbefore in part' recited Letters Patent is :
1 The combination with the lid or cover of a water closet of a ventilating tube
or pipe of which one end is attached to an aperture in said cover or lid and the
other end opens into the open air substantially as shewn and described.
2nd The combination with the lid or cover of a water closet of the ventilating
tube or pipe attached to an opening in said lid or cover and discharging into the
open air and composed of the rigid parts C C and intermediate flexible portion D
substantially as shewn and described, and for the purpose specified.
3rd The employment in combination with the ventilating apparatus above

page_text: specified of the ring g on the underside of the lid or cover, and the filling h between
the underside of the seat and the rim of the pan, substantially as shewn and
described and for the purpose specified.
In witness whereof I the said Frederick Piercy have hereunto set my hand
and seal this Twelfth day of December A.D. 1883.
FRED PIERCY. (L.S.)