IMPROVEMENTS IN DRESSES AND IN HEAD GEAR OR HELMETS FOR DIVERS
Year: 1868

page_text: LETTERS PATENT to Auguste Denayrouze, of Boulevard du Prince
Eugène, Paris, in the French Empire, Lieutenant in the French
Imperial Navy, for the Invention of "IMPROVEMENTS IN DRESSES AND
IN HEAD GEAR OR HELMETS FOR DIVERS."
Sealed the 13th April 1869, and dated the 16th October 1868.
PROVISIONAL SPECIFICATION left by the said Auguste Denayrouze
at the Office of the Commissioners of Patents, with his Petition,
on the 16th October 1868.
I, AUGUSTE DENAYROUZE, of Boulevard du Prince Eugène, Paris, in
the French Empire, Lieutenant in the French Imperial Navy, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN DRESSES
AND IN HEAD GEAR OR HELMETS FOR DIVERS," to be as follows:-
My improved dress for divers is made of india-rubber or other similar
waterproof material, and has sleeves and cuffs. A collar of elastic fabric
is sewn or otherwise attached to the neck. The horizontal portion is
perforated with holes.
The helmet or head piece for divers consists of two parts. A spherical
part which covers the face and back of the head, and a collar or neck

page_text: piece. The spherical part has holes in it, in which the eye glasses are
placed. The bottom of the spherical part and the top of the collar are
fitted with rings, in which are holes corresponding with those on the
dress collar; these rings are covered with caoutchouc. The throat
piece or neck piece of the collar is attached to the metal neck piece by
pins, bolts, or screws tightened to form a staunch joint.
The helmet may be used in ordinary diving, and also when air is
supplied directly into the diver's dress; in the latter case it has a short
air supply tube and an air discharge valve.
The helmet may also be used by divers employing the compressed
air reservoir arrangement patented by Rouquayrol and Denayrouze, in
which air is supplied to the diver from an air chamber or reservoir
carried by him. In this case the tube, and the valve opening have
plugs or stoppers, and the inhaling pipe is screwed on to the neck of
an opening, and a hook is provided to suspend the air chamber.
The dress may be modified by using a straight conical collar, the
head piece, being a metal mask with eye holes and a metal collar, in
which is an elastic packing ring, over which is drawn the elastic collar
of the dress, which is rather smaller than the ring but very elastic; it is
held in place by a metal ring tightened to form a staunch joint. An
air tube is fitted to the mask and there is an air discharge valve. This
mask may be also used when air is pumped direct into the diver's
dress.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Augusto Denayrouze in the Great Seal Patent
Office on the 16th April 1869.
TO. ALL TO WHOM THESE, PRESENTS, SHALL COME, I, AUGUSTE
DENAYROUZE,, of Boulevard du Prince Eugene, Paris, in the French
Empire, Lieutenant in the French Imperial Navy, send greeting.
WHEREAS. Her most. Excellent. Majesty Queen Victoria, by. Her a
Letters Patent, bearing date.the Sixteenth day of: October, in the year of
our Lord One thousand eight hundred and sixty-eight, in the. thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Auguste Denayrouze, Her special
licence that I, the said Auguste, Denayrouze, my executors, adminis-

page_text: trators, and assigns, or such others as I, the said Augusto Denayrouze,.
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, usc,-
exercise, and vent; within the United. Kingdom of Great Britain and.
Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN DRESSES AND IN HEAD GEAR OR HELMETS FOR DIVERS," upon.
the condition (amongst others) that I, the said Auguste Denayrouze,.my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and scals, 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 Offico within six calendar months next and immediately after
the date of the said Letters Patent..
NOW KNOW: YE, that I, the said Augusto Denayrouze, do liereby
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, reference being had to the accom-
panying Drawings, and. to the letters and figures marked thereon, that is:
to say:
My improved dress for divers is made of india-rubber or other similar
waterproof material, and has sleeves and cuffs. A collar of clastic
fabric is sewn or otherwise attached to the neck. The horizontal
portion is perforated with holes..
The helmet or head piece for divers consists of two parts,.a. spherical
part which covers the face and back of the head. and. a. collar or neck.
piece. The spherical part has holes in it, in which. eye glasses are
placed. The bottom of the spherical part and the top of the collar or
neck piece are fitted with rings, in which are holes-corresponding with.
those on the collar of the dress; these rings are covered with caoutchouc.
The horizontal throat piece or neck piece of the collar is attached to the
metal neck piece by pins, bolts,, or screws. tightened so as to form a
staunch joint.
The helmet may be used in ordinary diving and also when air is
supplied directly into the diver's dress; in the latter case it has a short.
air supply tube and an air discharge valve.
The helmet may also be used by diver's employing the compressed
air reservoir arrangements patented by Henry (as a communication

page_text: from Rouquayrol), and by Denayrouze, by British Letters Patent, dated
respectively 28 March 1864 and 12 July 1865, in which air is supplied
to the diver from an air chamber or reservoir carried by him. In this
case the tube and the valve opening have plugs or stoppers, and the
inhaling pipe is screwed on to the neck of an air opening, and a hook is
provided to suspend the air chamber.
case the tube and the valve opening have plugs or stoppers, and the
inhaling pipe is screwed on to the neck of an air opening, and a hook is
provided to suspend the air chamber.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a view of the dress.; Figures 2 and 3, views of the armlets;
Figures 4 and 5, views of the weight W; Figure 6, front view; Figure 7,.
side view; Figure 8, another side view of the helmet; Figure 9, view
of helmet modified; Figure 10, back view of neck piece; Figure 11,
perspective view of head gear and neck gear with weight.
2
The helmet or head piece consists of a spherical part A to cover the
face and back of the head and a neck piece B. The spherical part A.
receives the eye glasses. The bottom of the part A and the top of the
neck piece B. are fitted with brass rings, in which are three holes
corresponding with the holes in the collar of the dress;. these rings are
covered with caoutchouc. The throat piece or horizontal neck piece of
the helmet A is attached to the neck piece of the collar or part B at
a, b, c, by pins, bolts, or screws passing through holes in the former and
tightened to form a staunch joint. When air is supplied directly into
the diver's dress the helmet is fitted with a short air supply tube E and
an air discharge valve F, F. When the helmet is used for divers
employing the compressed air reservoir arrangements patented by
Rouquayrol and Denayrouze, the tube E and valve opening. F arc
plugged or stopped with metal stoppers, and the inhaling tube or air
pipe used in the apparatus is screwed on to the neck of an opening.
The air chamber or reservoir is hooked on to the hook 5. In Figure 9
the head piece consists mainly of a metal head gear, in which are
openings for the eye glasses, and which has at one part a metal piece
a, b, c, d, Figure 9, in which lies a caoutchouc packing ring about hal
an inch thick. The caoutchouc collar of the dress is of rather smaller
diameter than this metal piece a, b, c, but it is very elastic, and it is
drawn over it and kept in place by a metal ring which is tightened
over the caoutchouc collar to form a staunch joint. The mask has at
one side a short tube, and when used by a diver employing the com
pressed air chamber it is fitted at top at one part with a short tube

page_text: through which air is supplied, and it also has a valve for discharge of
air.
Figure 12 shews a nose pincer; Figure 13, shoe; and Figure 14,
knife and belt, which I recommend for the diver's use.
Having now described the nature of the said Invention, and in what
manner the same may be performed, I declare that I claim,-
First. The dress herein-before described in so far as regards the
arrangement and combination thercof, above set forth.
Second. The helmet or head gear herein-before described in so far as
regards the arrangement and combination of parts of which the same
consists, as set forth.
Third. The combination of the dress with the head gear or helmet in
the manner herein-before described.
In witness whereof, I, the said Auguste Denayrouze, have hereunto
set my hand and seal, this Twelfth day of April, in the year
of our Lord One thousand eight hundred and sixty-nine.