HEARING PROTECTOR
Year: 1885

page_text: I, BERNHARD GRÜNDLER of Petersdorf near Lagow in the German_Empire,
Clergyman do hereby declare the nature of said invention for " HEARING
PROTECTOR" to be as follows:-
Two suitably formed stoppers or plugs are fixed one at either end of a spring
clasp which may pass either round the back or over the top of the head, the force
of the spring keeping the stoppers or plugs against the cars of the wearer, or
instead of such a construction of clasp and stoppers combined, a separate clasp
provided with a stopper or plug may be fixed to one or both ears, or the stoppers
or plugs may be formed on or fixed to an air tight bollow elastic band or cushion
fitted with a tube for blowing air into the same, the pressure of the stoppers or
plugs against the ears being regulated by the force with which the air is blown
into the hollow band or cushion. Instead of closed stoppers or plugs, these may
be open or in the form of a grid.
EMIL CAPITAINE,
Agent for the Applicant,
89, Chancery Lane, W.C.
I, BERNHARD GRÜNDLER of Petersdorf, near Lagow in the German Empire,
Clergyman, do hereby declare the nature of said invention for "HEARING
PROTECTOR" and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
The object of this invention is to provide an instrument for the protection of the
sense of hearing against outward noise It consists—when it is required to protect

page_text: both ears of two air cushions with an arrangement of spring by which one air
cushion is pressed against each ear.
Referring to the accompanying sheet of drawings
Fig. 1 is a sectional view of an instrument of this invention.
A is a spring wire with ench of its ends bent round say to a right angle and on
each of which ends is fixed a stopper B made of elastic material. At the outer end
of the stoppers B is an air cushion C. The spring wire is inserted in an elastic
tube E the ends of this latter being drawn over the stoppers B. At a suitable
point an elastic inflating tube D is connected to the elastic tube E. The tubo D
is provided with a mouth piece F for facilitating inflation and with an air valve of
ordinary construction, by which means the wearer of the instrument may inflate
the tubing and air cushions.
Fig. 1a shews a modification in which instead of the spring wire A a small
metallic spring tube M is employed and the elastic tube E dispensed with. In this
case the tube for inflating the air cushions C is attached at N.
Fig. 2 shews a modification in which the air cushions as indicated by a or a¹ are
first inflated and then fixed to the spring wire A. The screw c serves for increasing
the force of the spring.
Fig. 3 shews a form of instrument in which the part connecting the two air
cushions is dispensed with and cach cushioning part with its frame is separately
fixed to one of the ears. In this case also the air cushions are inflated before fixing
in place; is the ear of the wearer.
Fig. 4 shews the instrument as shewn in Figs. 1, la, and 2 carried on the head
of the wearer.
Instead of the aforesaid air valve the air may be shut up in the air cushions by
means of a screw, nipple or other suitable arrangement.
"
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 hearing protector consisting of two elastic air cushions mounted on a spring
wire or spring frame or spring tube enclosed or not enclosed within an elastic tube
substantially as described with reference to Figs. 1, 1a, 2 and 4 of the drawings.
2. A hearing protector consisting of an elastic air cushion mounted on a cramp
or fastening part for attachment to the ear substantially as described with reference
to Fig. 3 of the drawings.