IMPROVEMENTS IN FLOATING SWIMMING BATHS, AND IN SUPPLYING WATER TO THE SAME
Year: 1873

page_text: LETTERS PATENT to Edward Perrett, of No. 6, Great George Street,
Westminster, in the County of Middlesex, Civil Engineer, for the
Invention of “IMPROVEMENTS IN FLOATING SWIMMING BATHS, AND IN
SUPPLYING WATER TO THE SAME."
Sealed the 2nd June 1874, and dated the 27th December 1873.
PROVISIONAL SPECIFICATION left by the said Edward Perrett at the
Office of the Commissioners of Patents, with his Petition, on the
27th December 1878.
I, EDWARD PERRETT, of No. 6, Great George Street, Westminster, in
the County of Middlesex, Civil Engineer, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN FLOATING SWINNING Baths, and
IN SUPPLYING WATER TO THE SAME," to be as follows:-
This Invention has for its object improvements in floating swimming
baths, and in supplying water to the same. For this purpose the water
is admitted into the floating structure from the outside by inlet passages
which can be opened and closed by valves. It enters troughs placed
near the water line of the vessel, and in the bottom of the troughs are

page_text: nozzles, to each of which a canvas bag is attached. The water enters
the bags, and is filtered through them. The bags are contained within
nets, which prevent them from becoming distended, and so allow a large
number of bags to be arranged within a comparatively small space.
In place of admitting the exterior water at once into the filter troughs 5
it may be passed in the first instanco into a settling tank. The water
delivered through the filter bags is forced by pumps worked by a steam
engine, and is so supplied to fountains arranged in or around the
swimming bath. These fountains are employed not simply for ornament,
but also for the aeration of the water.
In place of, arranging the filter troughs at or about the water line of
the vessel so that the water flows direct into them they may be placed
at the top of the structure, and tho unfiltered water is then pumped up
into tliem, and after it has been filtered it supplies the fountains.
1
SPECIFICATION in pursuance of the conditions of the Lotters Patent 1
-
filed by the said Edward Perrott in the Great Seal Patent Office
on the 27th Juno 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
PERRETT, of No. 6, Great George Street, Westminster, in the County of
Middlesex, Civil Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-seventh day of December, in the
year of our Lord One thousand eight hundred and seventy-three, in tho
thirty-seventh year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Edward Perrett, Her special ¦
license that I, the said Edward Perrett, my executors, administrators,
and assigns, or such others as I, the said Edward Perrett, my executors,
administrators, 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, excrcise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
FLOATING SWIMMING BATHS, AND IN Supplying Water TO THE SAME," upon the

page_text: condition (amongst others) that I, the said Edward Perrett, 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 Edward Perrett, 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 thereof, that is to say :—
•
This Invention has for its object improvements in floating swimming
baths, and in supplying water to the same. For this purpose the water
is admitted into the floating structure from the outside by inlet passages
which can be opened and closed by valves. It enters troughs placed
near the water line of the vessel, and in the bottom of the troughs are
nozzles, to each of which a canvas bag is attached. The water enters
the bags, and is filtered through them. The bags are contained within
nets, which prevent them from becoming distended, and so allow a large
number of bags to be arranged within a comparatively small space.
The water delivered through the filter bags is forced by pumps worked
by a steam engine, and is so supplied to fountains arranged in or around
the swimming bath. These fountains are employed not simply for
ornament, but also for the aeration of the water.
In order that my said Invention may be most fully understood and
readily carried into effect I will proceed to describe the Drawings here-

page_text: a, a, is the hull; it is constructed with double sides, with a space
between them. 6 is the main bath or water space, and along this portion
of the structure the spaces in the double sides are kept empty, but along
the sides of the filtering chamber these spaces are filled by being con-
nected with the main water space 6 by the pipes c, c. The water here 5
serves as ballast. d, d, are troughs fixed along the two sides of the
filtering chamber. They are each divided into several sections, and the
sections can be supplied with water independently the one of the other
by separate cocks e, e, e. The right-hand trough d (see Figure 3) draws
its supply from the bath, whilst the left-hand trough is supplied by the 1
water outside, which stands sufficiently high to enter when the cocks
are opened. The water in the bath is intended to stand somewhat above
the external water, but some inches below the top of the troughs d.
Beneath the bottom of the troughs are nozzles d¹, d³, upon which filter
bags of a closely woven fabric are secured, and these bags are contained 1
within outer bags of a more open fabric to prevent them pressing the
one on the other. The outer bags are about one-third of the size of the
inner bags. The water after percolating through the bags is collected
in the troughs f,f, and from thence it is drawn by rotary pumps worked
by steam engines through the pipes 9, 9, and it is forced into the pipes 2
h, h, to supply the fountains which fill the bath. The pumps may be
made to draw from either of the troughs fat pleasure. The engines
and pumps can also be used if required to pump the water out of the
bath by the pipe i, and the water so drawn from the bath may either be
thrown overboard, passing by the pipes k, k, to the outlets 1, 2, or by 2
suitable cocks it may be drawn from the pipes & into wooden troughs
m, m, which return it to the several compartments of the filter troughs d.
The outlets are fitted with flap valves A to prevent water entering by
them should they ever become submerged.

page_text: What I claim is, the construction of floating swimming baths and
the means of supplying them with filtered water, all substantially as
described..
In witness whereof I, the said Edward Perrett, have hereunto set
my hand and seal, this Fifteenth day of June, in the year of
our Lord One thousand eight hundred and seventy-four.