An Improved Helmet.
Year: 1899

page_text: Date of Application, 1st June, 1899
Complete Specification Left, 26th Oct., 1899-Accepted, 2nd Dec., 1899
PROVISIONAL
SPECIFICATION.
An Improved Helmet.
HENRY JOHN TOWELL, 10, Argyll Place, London, W., Army & Navy Con-
tractor, Accoutrement & Head Dress Manufacturer, &c., do hereby declare the
nature of this invention to be as follows:-
Foreign service or otherwise cork helmet, with inner or double skull, inserted
between the outer skull & the corrugated ventilation, to admit of air passage
between the two skulls, with outlet at top of corrugated vent. By which means
a better protection is afforded to the head than the present single skull pattern
& ventilation is secured without causing a severe current of air.
I, HENRY JOHN TOWELL, of 10, Argyle Place, in the County of London, Army
& Navy Contractor & Accoutrement Manufacturer, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be parti-
cularly described and ascertained in and by the following statement:-
-
This invention relates to an improved cork pith or like helmet so made as to
afford better protection to the head than helmets as hitherto made and to secure
the efficient ventilation of the interior of the helmet without allowing a severe
current of air to have access to the head of the wearer.
In the accompanying drawings Fig. 1 is a sectional side elevation and Fig. 2
a transverse section of my improved helmet.
My invention consists in forming the helmet with two skulls or shells A
and B, an inner and an outer, so arranged as to admit of the free circulation of
air between them. As shown in the drawings, the inner shell A roughly con-
forms to the shape of the outer shell B and is held at the sides in proper posi-
tion therein by means of blocks or distance pieces C of cork, pith or other
suitable material. These blocks or distance pieces C are attached by solution
or otherwise to the interior of the outer shell B, and the inner shell A is simi-
larly attached to these blocks or distance pieces C.
The upper ends of both skulls or shells is secured to a ventilating tube D
having an open bottom d and an open top d¹ and furnished with any suitable
number of side apertures d opening into the space between the two shells A
and B. E is a perforated vent button secured in position by a screwed stem e

page_text: screwing into an internally threaded tube 3 firmly attached to intersecting
cross bars d' on the bottom d of the tube ]). F is a loose collar, surrounding
the vent aperture in the top of the helmet, on to which the button E takes a
bearing when screwed down.
The lower part of the inner skull or shell A is secured to the corrugated
band G which is itself secured all round to the interior of the outer skull or
shell B in the ordinary manner. The head band or leather H is secured to the
interior of the inner shell or skull A in the ordinary way.
At suitable places the inner skull or shell A is perforated and preferably
fitted with eyelets or like ventilating devices J so that the current of air passing
in between the folds of the corrugated band G and through the button E and
air apertures to the space between the two skulls or shells can pass into the
interior of the inner skull or shell, or the heated air can pass thereout, and the
head of the wearer thus be sufficiently ventilated.
Furthermore the air between the two skulls or shells will act as a non-con-
ductor of heat and consequently in hot climates a helmet having a double skull
will be more impermeable to heat rays than one having only a single skull as
hitherto made.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
(1) A helmet having an inner and an outer skull or shell with an air space
between them, an air vent aperture in the top of the outer shell and air vent
apertures in the sides of the inner shell substantially as described.
(2) A helmet having an inner and an outer skull or shell connected together
at their upper ends by a vent tube such as D), at their sides by blocks or dis-
tance pieces such as C, and at their lower ends by a corrugated ventilating band
such as G, the inner skull or shell A having air vent apertures therein and the
outer skull or shell B having a vent button such as E, substantially as and for
the purposes herein described with reference to the accompanying drawings.
Dated the 26th day of October 1899.
F. W. GOLBY,
Patent Agent, 36, Chancery Lane, London, W.C.,
Agent for the Applicant.