A NEW OR IMPROVED VENTILATING, DISINFECTING, AND DEODORIZING COVER FOR WATERCLOSETS, PRIVIES, URINALS, NIGHT COMMODES, AND OTHER LIKE UTENSILS, ALSO GENERALLY APPLICABLE TO THE DISINFECTION AND DEODORIZATION OF FETID OR NOXIOUS GASES AND " EMANATIONS
Year: 1875

page_text: LETTERS PATENT to Michel Alexandrovitch Popoff, of Number 54,
Priajka, St. Petersburg, in the Empire of Russia, Civil Engineer,
for the Invention of "A NEW OR IMPROVED VENTILATING, DISINFECTING,
AND DEODORIZING COVER FOR WATERCLOSETS, PRIVIES, URINALS, NIGHT
COMMODES, AND OTHER LIKE UTENSILS, ALSO GENERALLY APPLICABLE TO
THE DISINFECTION AND DEODORIZATION OF FETID OR NOXIOUS GASES AND
"
EMANATIONS."
Sealed the 29th October 1875, and dated the 6th May 1875.
PROVISIONAL SPECIFICATION left by the said Michel Alexandrovitch
Popoff at the Office of the Commissioners of Patents, with his
Petition, on the 6th May 1875.
I, MICHEL ALEXANDROVITCH POPOFF, of No. 54, Priajka, St. Peters-
5burg, in the Empire of Russia, Civil Engineer, do hereby declare the
nature of the said Invention for "A NEW OR IMPROVED VENTILATING,
DISINFECTING, AND DEODORIZING COVER FOR WATERCLOSETS, PRIVIES, URINALS,
NIGHT COMMODES, AND OTHER LIKE UTENSILS, ALSO GENERALLY APPLICABLE TO THE

page_text: DISINFECTION AND DEODORIZATION OF FETID OR NOXIOUS GASES AND EMANATIONS,”
to be as follows:-
""
The Invention is based upon the well known principle that it is both
dangerous and unwholesome to shut in or imprison the foetid gases and
emanations arising from waterclosets, privies, urinals, night commodes,
and other such like utensils, and that instead of doing so they should be
allowed to escape after being disinfected.
The means employed under this Invention to effect this object are as
follows A groove is formed in the upper side of the seat of the closet
or utensil and surrounding the usual orifice. This groove is partially
filled with fine sand. A ventilating lid is then provided to cover the
aforesaid orifice, being by preference hinged to the seat. It is composed
of a cylinder of sheet tin or other suitable material, and having a bottom
adapted thereto of galvanized iron or other suitable wire network or
grating. The top thereof is also composed of a similar network or
grating. The space between the bottom and top network or grating is
to be filled with charcoal. The lower edge of the cylinder or of a rim
attached thereto is adapted to shut down into the sand contained in the
groove surrounding the orifice in the seat when the closet or utensil is
not in use, whereby escape of gas or emanations between the lid and the
seat are prevented.
It will now be understood that the gases and emanations cannot
escape from the closet or utensil without passing through the cylindrical
portion of the ventilating cover containing the charcoal, whereby they
are disinfected and deodorized before issuing into the atmosphere.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Michel Alexandrovitch Popoff in the Great Seal
Patent Office on the 3rd November 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,' MICHEL
ALEXANDROVITCH POPOFF, of Number Fifty-four, Priajka, Saint Peters- 30
burg, in the Empire of Russia, Civil Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her

page_text: of our Lord One thousand eight hundred and seventy-five, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Michel Alexandrovitch
Popoff, Her special license that I, the said Michel Alexandrovitch
Popoff, my executors, administrators, and assigns, or such others as
I,,the said Michel Alexandrovitch Popoff, my executors, adminis-
trators, and assigns, should at any time agree with, and no others
from time to time, and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "A NEW OR IMPROVED
VENTILATING, DISINFECTING, AND DEODORIZING COVER FOR WATERCLOSETS, PRIVIES,
UBINALS, NIGHT COMMODES, AND OTHER (LIKE UTENSILS, ALSO GENERALLY APPLI-
CABLE TO THE DISINFECTION AND DEODORIZATION OF FETID OR NOXIOUS GASES AND
EMANATIONS," upon the condition (amongst others) that I, the said
Michel Alexandrovitch Popoff, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Michel Alexandrovitch Popoff,
do hereby declare the nature of the said Invention, and in what
manner the same is to be performed, to be particularly described and
ascertained in and by the following statement, reference being had to
the accompanying Sheet of Drawings and to the figures and letters
marked thereon, that is to say :—
The Invention is based upon the well known principle that it is both
dangerous and unwholesome to shut in or imprison the foetid gases and
emanations arising from waterclosets, privies, urinals, night commodes,
and other such like utensils, and that instead of doing so they should be
allowed to escape after being disinfected.
The means employed under this Invention to effect this object are as
follows A groove is formed in the upper side of the seat of the closet
or utensil and surrounding the usual orifice. This groove is partially
filled with fine sand. A ventilating lid is then provided to cover the

page_text: ՆԱՆ ԵՂԵԵ
UITC SEAL WHICH ՆԵ ԵՍՏԵՆ Ս… ԱՆՁ
not in use, whereby escape of gas or emanations between the lid and the
seat is prevented.
It will now be understood that the gases and emanations cannot
escape from the closet or utensil without passing through the cylindrical
portion of the ventilating cover containing the charcoal, whereby they
are disinfected and deodorized before issuing into the atmosphere.
In the Drawing Figures 1 and 2 illustrate the Invention as applied to
the seat of a closet.
A represents the groove formed in the seat and surrounding the
orifice therein, being partially filled with fine sand, as above mentioned;
B is the ventilating lid hinged to the scat in the usual manner, but
having an orifice formed therein corresponding to the orifice in the seat.
Into the orifice in the lid is fitted the cylinder C for containing the
disinfecting and deodorizing material. It may be formed of sheet metal
perforated or not at the side, as may be desired, or it may be composed
of wire network or grating, as shewn in the Drawing. The top and
bottom are composed of wire network or grating as shewn. D is the
rim, which, when the lid is shut down, enters into the sand contained in
the groove A, whereby the escape of gases or emanations between the
lid and the seat is prevented, they being forced to pass up through the
disinfecting and deodorizing material in the cylinder C before escaping
into the atmosphere.
Figures 3 and 4 illustrate the Invention as applied to the ventilating
pipe of a urinal.
C represents the ventilating cover composed of a perforated or net-
work box or chamber for containing the disinfecting or deodorizing
material similar to that above described in reference to Figures 1 and 2.
The ventilating cover is in this case shewn applied to the ventilating
pipe E of the urinal, but it is evident that it may, if preferred, be

page_text: applied to the lid F of the urinal in a manner similar to that described in
reference to the closet lid, and with similar effects.
Having now described the nature of the said Invention and in what
manner the same is to or may be performed, I would have it understood
that what I claim as my Invention is, the employment of the ventilating,
disinfecting, and deodorizing cover constructed and applied substantially
as herein-before described and illustrated in the Drawings and for the
purposes set forth.
In witness whereof, I, the said Michel Alexandrovitch Popoff,
have hereunto set my hand and seal, this Twenty-seventh day
of October, in the year of our Lord One thousand eight hundred
and seventy-five.
MICHEL ALEXANDROVITCH POPOFF. (L.s.)
Patentee.