IMPROVE. MENTS IN THE MECHANICAL ARRANGEMENTS OF WATERCLOSETS FOR SHIPS
Year: 1865

page_text: LETTERS PATENT to Henry William Rosser, of 18, Leadenhall Street,
in the City of London, Marine Engineer, for the Invention of " IMPROVE.
MENTS IN THE MECHANICAL ARRANGEMENTS OF WATERCLOSETS FOR SHIPS."
Sealed the 22nd December 1865, and dated the 30th June 1865.
PROVISIONAL SPECIFICATION left by the said Henry William Rosser
at the Office of the Commissioners of Patents, with his Petition, on the
30th June 1865.
I, HENRY WILLIAM ROSSER, of 18, Leadenhall Street, in the City of
London, Marine Engineer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE MECHANICAL ARRANGEMENTS OF WATERCLOSETS FOR
SHIPS," to be as follows:-
This Invention consists in the application of force pumps to waterclosets of
ships for the purpose of supplying water for cleansing the closet pan.
Where a discharge pump is used to empty the closet pan, which is usual
when the closet is fixed below the water-line, the force pump is attached by
means of levers or other suitable gear to the discharge pump, so as to supply
the necessary amount of cleansing water with the same motive power at the
same time that the discharge pump is emptying the closet pan, or the force
pump may be worked by seperate lever gear, so as to supply the cleansing,
water in any quantity before or after the discharge pump is used.
When there is not any discharge pump attached to the closet pan, as in
1

page_text: the case of ships' waterclosets fixed above the water line, the force pump is
employed to supply the cleansing water for the pan in place of the water
supply cistern now usually employed for that purpose.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henry William Rosser in the Great Seal Patent Office on
the 30th December 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
WILLIAM ROSSER, of 18, Leadenhall Street, in the City of London, Marine
Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth day of June, in the year of our Lord
One thousand eight hundred and sixty-five, in the twenty-ninth year of Her
reign, did, for Herself, Her heirs and successors, give and grant, unto. me,
the said Henry. William Rosser, Her special licence that I, the said Henry
William Rosser, my executors, administrators, and assigns, or such others as
I, the said Henry William Rosser, my executors, administrátors, 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 "IMPROVEMENTS IN THE MECHANICAL ARRANGEMENT OF WATERCLOSETS FOR
SHIPS," upon the condition (amongst others) that I, the said Henry William
Rosser, 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 Henry William Rosser, 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, reference being had to the figures on the accom-.
panying Sheet of Drawings, and to the letters of reference marked thereon
(that is to say)
This Invention consists in the application of force pumps to waterclosets
of ships for the purpose of supplying water for cleansing the closet pans.

page_text: When a soil or discharge pump is used to empty the closet pan, which is
usual when the closet is fixed below the water line, I employ one or more
force pumps to each closet, according to the necessary amount of cleansing
water required.
Figs. 1 and 2 of the Drawings are front and end elevations of a ship's
watercloset having an ordinary soil or discharge pump and one of my additional
force p u.
a represents the closet pan; b, the soil pump, and c the additional force
pump which draws its water from the sea or other source through the suction
pipe d, Fig. 2, and discharges it into the pan through the pipe e, Figs. 1
and 2, the clearance of the soil being effected through the pipe f. The soil
and force pumps may either be worked separately, as shewn in the Figures,
or be connected by levers or other suitable gear, so as to supply the necessary
amount of cleansing water at the same time that the soil or discharge pump
is emptying the closet pan, and the introduction of a three-way cock on the
discharge pipe e will also enable the force pump to be used to supply water to
a bath or elsewhere.
When there is not any soil or discharge pump attached to the closet pan,
as in the case of ships' waterclosets fixed above the water line, the force
pump is employed to supply the cleansing water for the pan instead of the
water supply cistern now usually employed for that purpose.
Having now described the nature and particulars of my said Invention,
and the manner in which the same is to be performed or carried into effect,
I desire it to be understood that I claim the application of force pumps to
waterclosets of ships for the purpose of supplying water for cleansing the
closet pans.
In witness whereof, I, the said Henry William Rosser, have hereunto
set my hand and seal, this Twenty-ninth day of December, in the
year of our Lord One thousand eight hundred and sixty-five.