IMPROVEMENTS IN AUGMENTING MUSICAL SOUNDS AND IN APPARATUS CONNECTED THEREWITH."
Year: 1866

page_text: LETTERS PATENT to John Macintosh, of North Bank, Regent's Park,
in the County of Middlesex, for the Invention of "IMPROVEMENTS IN
AUGMENTING MUSICAL SOUNDS AND IN APPARATUS CONNECTED THEREWITH."
AUGMENTING MUSICAL SOUNDS AND IN APPARATUS CONNECTED THEREWITH.”
PROVISIONAL SPECIFICATION left by the said John Macintosh at the
Office of the Commissioners of Patents, with his Petition,
22nd March 1866.
on the
I, JOHN MACINTOSH, of North Bank, Regent's Park, in the County of
Middlesex, do hereby declare the nature of the said Invention for "Im-
PROVEMENTS IN AUGMENTING MUSICAL SOUNDS AND IN APPARATUS CONNECTED
THEREWITH," to be as follows.:-
This Invention has for its object the rendering of instrumental or vocal
musical sounds louder; more powerful, and distinct, and consists in using a
large hollow trumpet-shaped structure with its largest end or mouth towards
the audience or hearers, and into this the musicians or vocalists are intro-
duced. Towards or at the end farthest from the audience I place pipes for
the purpose of supplying the structure with slightly compressed air, which I
prefer to use in a dry state, and which I force through the pipes by means of
a fan or other suitable means. The compressed air coming in near or at the
smaller end of the structure is diffused and moves along towards the audience,
carrying the vocal or instrumental sound to them and rendering it louder and
more distinct. The structure may be made of any suitable material.

page_text: 'The same principle may be applied on a smaller scale by forming the
trumpet so that it may fit on the head or shoulders of the vocalist, or it may
be put over the instrument to be played and supplied with air.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Macintosh in the Great Seal Patent Office on the
22nd September 1866.
.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
MACINTOSH, of North Bank, Regent's Park, in the County of Middlesex,
:send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-second day of March, in the year of our
Lord One thousand eight hundred and sixty-six, in the twenty-ninth year
of Her reign, 'did, for Herself, Her heirs and successors, give and grant unto
me, the said John Macintosh, Her special licence that-I; the said John
Macintosh, my executors, administrators, and assigns, or, such others as
I, the said John Macintosh, 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, use, exercise, and vend,. within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN AUGMENTING MUSICAL SOUNDS AND IN APPARATUS CONNECTED
THEREWITH," upon the condition (amongst others) that I, the said. John
Macintosh, my executors or administrators, by an instrument in writing under.
my, or their, or one of their hands and seals,. 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 Office within six calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that I, the said John Macintosh, do hereby declare, the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
:
**This Invention has for its object. the rendering of instrumental or vocal.
-sounds louder, more powerful, and distinct, and consists in using a large-
hollow trumpet-shaped structure with its largest end or mouth towards the
audience or hearers, and into this the musicians or vocalists are introduced.

page_text: Towards or at the end farthest from the audience I place pipes for the
purpose of supplying the structure with slightly compressed air, which I
prefer to use in a dry state, and which I force through the pipes by means of
a fan or other suitable means. The compressed air coming in near or at the
smaller end of the structure is diffused and moves along towards the audience,
carrying the vocal and instrumental sound to them and rendering it louder
and more distinct. The structure may be made of any suitable material.
The same principle may be applied on a smaller scale by forming the
trumpet so that it may fit on the head or shoulders of the vocalist, or it
may be put over the instrument to be played and supplied with air.
I do not confine myself to a cylindrical form in the construction of conical
trumpet-mouthed instruments for the diffusion and increase of sound, as they
may be made square or oblong with very good results.
What I claim as my Invention is, the rendering of vocal or instrumental
musical sounds more powerful and effective by mechanical arrangements for
increasing their volume combined with a stream of air to diffuse them through
a large space.
In witness whereof, I, the said John Macintosh, have hereunto set my
hand and seal, this Twenty-second day of September, in the year of
our Lord One thousand eight hundred and sixty-six..