A NEW AND IMPROVED MEANS OF CONCENTRATING THE CALORIC OF HEATED WATER USED FOR BATHING PURPOSES
Year: 1869

page_text: LETTERS PATENT to Henri Adrien Bonneville, of the British and
Foreign Patent Offices, 18, Chaussée d'Antin, Paris, in the Empire
of France, and 10, Sackville Street, Piccadilly, in the County of
Middlesex, Patent Agent, for the Invention of "A NEW AND IMPROVED
MEANS OF CONCENTRATING THE CALORIC OF HEATED WATER USED FOR BATHING
PURPOSES." A communication from Clémence d'Estains, Widow of
Léon De Wailly, residing at Rue de Chaillot, 74, in Paris, afore-
said.
COMPLETE SPECIFICATION filed by the said Henri Adrien Bonneville
at the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 28th April 1869, pursuant to the 9th Section
of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRI
ADRIEN BONNEVILLE, of the British and Foreign Patent Offices, 18,
Chaussée d'Antin, Paris, in the Empire of France, and 10, Sackville
Street, Piccadilly, in the County of Middlesex, Patent Agent, send
greeting.

page_text: WHEREAS I am in possession of an Invention for "A NEW AND
IMPROVED MEANS OF CONCENTRATING THE CALORIC OF HEATED WATER USED FOR
BATHING PURPOSES," a communication from Clémence d'Estains, Widow
of Léon De Wailly, a person resident at Rue de Chaillot, 74, in Paris,
aforesaid, and have petitioned Her Majesty to grant unto me, my
executors, administrators, and assigns, Her Royal Letters Patent for
the same, and made solemn Declaration that it is a communication.
NOW KNOW YE, that I, the said Henri Adrien Bonneville, do hereby
declare that the following Complete Specification, under my hand and
seal, fully describes and ascertains the nature of the Invention, and
the manner in which the same is to be performed, that is to say :-
The Invention communicated to me relates to the preservation of the
caloric of heated water when used in baths during a sufficient length of
time as will do away with the necessity of adding hot water as is usually
done so as to maintain about an equal temperature whilst in the bath,
especially in the case of baths which are brought from a distance to the
house.
This Invention consists in concentrating the degree of heat which
is deemed sufficient, and in preventing the radiation and loss of the
caloric contained by the water poured into the bath or vessel in which
the general or local bath is administered, and in enclosing this bath or
vessel in a suitable envelope or covering made of felt or felted stuff, or
any other material enjoying the property of preventing the said radiating.
By this means the concentrated heat is maintained at a pretty equal
temperature during a considerable space of time, in any case much
longer than is prescribed for the longest bath.
. It is unnecessary to indicate any peculiar mode of carrying this Inven-
tion into effect, as the means may vary according to the form and size
of the vessels to which the application may be made, but what may be
considered as the simplest and most effective means to be employed is
to cut the felt or felted stuff or other material to be used to the shape
of the external sides or walls of the bath or vessels, and to join and
connect both extremities of this envelope thus placed round the bath
or vessel by means of straps and buckles or any other suitable connecting
means, and then to cover over the upper open part of the bath or vessel
with a piece of the material used for the sides cut into the shape of that
part, leaving a circular opening therein for the head or upper part of the
body to pass through, and to unite and connect the edges of this covering

page_text: with those of the lateral covering by means of straps and buckles, or any
other suitable connecting device.
Having thus fully described the said Invention, and what may be
considered as the simplest and most effective manner of carrying the
same into effect, what I claim and desire to secure by Letters Patent is,
the concentration of the caloric of heated water for bathing purposes by
means of felted or any other such like suitable envelopes applied to
the vessels containing the said water, and which prevent the radiation
and loss of the said caloric, substantially as hercin-before fully set forth
and described.
In witness whereof, I, the said Henri Adrien Bonneville, have
hereunto set my hand and seal, this Twenty-fourth day of April,
in the year of our Lord One thousand eight hundred and sixty-
nine.
H. BONNEVILLE. (L.S.)