Improvements in Divers' Helmets and Dresses and in the Method of Attaching the same to each other.
Year: 1888

page_text: Improvements in Divers' Helmets and Dresses and in the Method
of Attaching the same to each other.
1, ALFRED EDWIN STOVE of 11 Queen Victória Street in the City of London,
Submarine Engineer, do hereby declare the nature of this invention to be as
follows:
This invention relates to certain improvements in divers helmets, and dresses and
in the method of attaching the same to each other, whereby the operation is greatly
facilitated and the use of bolis and nuts is dispensed with.
:
The helmet consists of two pieces viz. the helmiet proper and the breast plate. The
upper part of the breast plate terminates in an upright which runs all round the neck
and is screw threaded on its interior surface.
The breast plate also carries a flange with a shaped groove, a corresponding flange
is formed on the bottom rim of the helmet proper so as to fit in the flange on the
breast plate, the bottom rim being screw threaded on its outside so as to screw
into the upright on the breast plate. An annular groove is also cut in the bottom
face of the helmet proper to receive an india-rubber washer to make the same
perfectly air and water tight when screwed down.
The dress from the shoulder is made with an upright collar on to the top of
which a flat flange is affixed. The outer edge of this flange terminates in a beading
so shaped as to fit into the flange upon the breast plate.
The apparatus is fitted together in the following manner :-
.
The dress is put on the diver, the breast plate is placed on his shoulders, the
neck of the dress brought through the neck of the breast plate and the flat flange
placed over the flange on the breast plate, the shaped beading is then pressed
into the groove on the breast plate flange, the helmet is then put on and screwed
down tight and made secure by the india-rubber washer fitted into the groove
on the helmet flange. The breast plate helmet proper and dress, are thus
attached to each other by the simple action of screwing the helmet proper into the
breast plate.

page_text: If desired the helmet and breast plate. may be further. secured to each other, hy
means of a split pin or an equivalent device.
Doind L
COL. 1000
CASTLE SMITH,
Per F. W. Golby,
"Invention " Office,
4, Fleet Street, London, E.C.,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Divers' Helmets and Dresses and in the Method
of Attaching the same to each other.
I, ALFRED EDWIN STOVE of 11 Queen Victoria Street in the City of London
Submarine Engineer do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement:-
I
This invention relates to certain improvements in diver's helmets and dresses and in
the method of attaching the same to each other, whereby the operation is greatly
afacilitated and the use of bolts or studs and nuts is dispensed with.
And in order that my invention may be well understood and carried into practice,
elywill now proceed to describe the same with reference to the accompanying drawings
in which similar. letters are used to indicate corresponding parts in both figures.
Fig. 1 is a partly sectional elevation of a helmet and breast plate shewing my
improvements. Figures 2 and 3 are enlarged sections of the joint of the helmet to
the breast, plate with the dress attached. and Fig. 4 is a plan of the upper part or
collar of the breast plate with the helmet.removed. Fig. 5 shews a modification of
the invention and Fig.-6 is a section of the collar of the.dress.
.
·
According to this invention: I construct the diver's dress with an upright collar and
construct in one, with this collar or affix thereto a flat annular flange A of vulcanized
india rubber. This flange A projects horizontally and terminates in an annular
beading, B. corresponding in,size, with the annular groove or recess (in a flange D,
formed upon the upper part or neck of the breast plate, E. The flange D has, an
upright rim F which runs all round; the neck and is screw threaded in sections of its
innerface, that is to, say, a screw thread is formed on the inner, face and parts of the
screw threaded face are cut away, leaving inwardly projecting screw threaded sections as
1.

page_text: shewn at figure 3. and blank sections as shewn at Figure 2. Corresponding screw
threaded sections G (see Fig. 3) are formed upon a flange H, constructed on the
bottom part or neck of the helmet 1. By placing the helmet with its screw threaded
sections G within the blank sections on the upright rim F of the flange D and turning
it through a small arc of a circle the helmet and breast plate, are quickly attached to
each other as is well understood and commonly practised.
The dress and equipment are fitted together in the following manner -The dress
is put on the diver, the breast plate is laid on bis shoulders and the flat annular
flange A is placed upon the flange D of the breast plate E. The beading B is then
pressed into the groove or recess C and the helmet screwed on in the manner herein
before explained and the flange A on the dress is gripped between the flanges H
and D on the helmet and breast plate respectively the beading B preventing the collar
of the dress from being drawn out from between the flanges Hand D. The breast
plate helmet and dress are thus attached to each other by the simple action of turning
the helmet through a small arc of a circle and thus screwing it to the breast plate. If
preferred the beading B may be formed on the upper side of the flange A of the dress
and be made to enter a groove or rebate on the flange H of the helmet as shewn in
Figure 5 instead of into a groove in the flange D of the breast plate, as shewn in
Figs. 2 and 3.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
1. The method of attaching a diver's dress to the helmet and breast plate by means
of the flange A gripped between the flanges H and D on the helmet and breast-plate
respectively, with beading B fitting into a groove Cin the flange D of the breast plate E
or into a groove or rebate (in the flange H of the helmet, the whole secured by
screw threads on the flange H and upright rim F substantially as and for the purpose
hereinbefore set forth and illustrated in the accompanying drawings.
2. The construction of a diver's dress with a flat annular flange A projecting
horizontally for the purpose of being gripped between screwed flanges on the helmet
and breast plate the said flange having a beading B formed thereon or attached
thereto for the purpose of entering a groove or rebate in one of the said flanges
substantially in the manner herein before set forth.
Dated this 15th day of March 1889