An Improved Fog-horn.
Year: 1892

page_text: Date of Application, 30th Apr., 1892
Complete Specification Left, 28th Feb., 1893-Accepted, 22nd Apr., 1893
PROVISIONAL SPECIFICATION.
An Improved Fog-horn.
I, DAVID HOWARD BAKEK, of 725 Chamber of Commerce, Boston,
Massachusetts, U.S.A., Inventor, do hereby declare the nature of this invention to
be as follows:-
The object of my invention is to provide a cheap, simple, convenient, and efficient
fog-horn for marine purposes to be operated or sounded as a danger or other desired
signal, as heretofore employed and now in general use; and it consists in the con-
struction, combination, and arrangement of the several parts composing the same, as
hereinafter more fully described.
I provide a sheet-metal cylindrical vessel having a suitable bottom, which forms
a base or support for the device when in position to be used. The upper end of
the vertical cylinder has a suitable rib, groove, flange, or shoulder formed
externally thereon or provided with other suitable means whereby the end of a
flexible rubber or other elastic sleeve may be secured thereon or thereto by means
of a twine, wire, or metal band, so as to connect the same permanently therewith.
Within the smaller end of this elastic rubber or other flexible sleeve is likewise
secured a metallic or other suitable cap-support portion, having a central opening
and provided with a short conical tube having an elastic packing, within which the
conical mouth-piece snugly fits, so as to retain the small end of the horn therein
ready for immediate use when desired.
It will be understood that by simply elevating and depressing the horn that the
air contained in the said vessel is forced against the usual reed provided on the
small end of the horn, causing the reed to vibrate and thereby produce a sound as
long as the air is passing outward through the horn as the same is forced downward,
so as to operate the sleeve-bellows as above described.
The large or "mouth " end of the horn is provided with a cap or shield piece,
connected thereto by short wire supports, whereby snow or rain or other foreign
substances are prevented from falling within the open upward end of the horn when
in position on a boat or vessel for use.
Dated this 20th day of Amil 1905
W. H. MUNNS,
Applicant's Agent.
COMPLETE SPECIFICATION.
An Improved Fog-horn.
I DAVID HOWARD BAKER of 725 Chamber of Commerce, Boston,
Massachusetts, U.S.A., Inventor, 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 :—
The object of my invention is to provide a cheap, simple, convenient, and
efficient fog-horn for marine purposes to be operated or sounded as a danger or
other desired signal, as heretofore employed and now in general use and it
consists in the construction, combination, and arrangement of the several parts
composing the same as hereinafter more fully described and specifically set forth in
the claim.
The drawings hereto annexed form a part of this Specification as hereinafter
described.
Fig. 1 represents a side elevation of a fog-horn constructed according to my
invention, showing the same in an extended position ready to be sounded.

page_text: Fig. 2 represents a vertical longitudinal central section of the same in its
contracted position after being sounded.
A represents a sheet-metal cylindrical vessel provided with a suitable bottom B,
which forms a base or support for the device when in position for use.
The upper
end of the vertical cylinder A has a suitable rib, groove, flange or shoulder formed
externally thereon or provided with other suitable means whereby the end of the
flexible rubber or other elastic sleeve E may be secured thereon or thereto by
means of a twine, wire, or metal band F, so as to connect the same permanently
therewith. Within the smaller end of this elastic rubber or other flexible sleeve É
is likewise secured a metallic or other suitable cap-support portion H, having a
central opening and provided with a short conical tube L, having an elastic
packing P, within which the conical mouth-piece R snugly. fits, so as to retain the
small end of the horn S therein, as shown, in position ready for immediate use
whenever desired.
It will be seen that by simply elevating and depressing the horn S that the air
contained in the said vessel A is forced against the usual reed T, provided on the
small end of the horn, causing the reed to vibrate and thereby produce a sound as
long as the air is passing outward through the horn as the same is forced downward,
so as to operate the sleeve bellows E, as above described and clearly shown in the
drawings.
The large or "mouth" end of the horn is provided with cap or shield piece N,
connected thereto by short wire supports, as shown, whereby snow or rain or other
foreign substances are prevented from falling within the open upward end of the
horn when in position on a boat or vessel for use.
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 :-
--
A fog-horn consisting of a rigid cylinder closed at the lower end and having a
conical elastic tubular portion secured to the upper end, and to the upper end of
the said elastic conical portion a horn adapted to be forced downward with the
elastic portion within the rigid cylindrical portion, and thereby force the air
outward through the horn to sound the same substantially as described.
Dated this 28th day of February 1893.
W. H. MUNNS,
Agent for Applicant.