A VENTILATOR FOR THE PURPOSE OF VENTILATING CLOSE CARRIAGES OF EVERY DESCRIPTION, SEDAN CHAIRS, ROOMS, AND CABINS OF SHIPS, AND BY WHICH SOUND MAY ALSO BE CONVEYED FOR CERTAIN USEFUL PURPOSES
Year: 1805

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
COLLINS, of Plymouth, in the County of Devon, Esquire, send greeting..
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of His, United Kingdom, bearing
date at Westminster the Ninth,day of August, in the forty-fifth year of His
reign, give and grant unto me, the said William Collins, my exors, admiors,
and assigns, His especial licence, that I, the said William Collins, my exors,
admors, and assigns, during the term of years therein mentioned, should and
lawfully might make, use, exercise, and vend, within England, Wales, and the
Town of Berwick-upon-Tweed, my Invention of "A VENTILATOR FOR THE
PURPOSE OF VENTILATING CLOSE CARRIAGES OF EVERY DESCRIPTION, SEDAN CHAIRS,
ROOMS, AND CABINS OF SHIPS, AND BY WHICH SOUND MAY ALSO BE CONVEYED FOR
CERTAIN USEFUL PURPOSES;" in which said Letters Patent there is contained a
proviso, obliging me, the said William Collins, by an instrument in writing
under my hand and seal, to cause a particular description of the nature of my
said Invention, and in what manner the same is to be performed, to be inrolled
in His Majesty's High Court of Chancery within one calendar month after the
date of the said recited. Letters Patent, as in and by the same, (relation being
thereunto had,) may more fully and at large appear.
NOW KNOW.YE, that. in compliance with. the said proviso, I, the said
William Collins, do hereby describe and ascertain the nature of my said
Invention, and in what manner the same is to be performed,. as follows, that
is to say:-
I take or provide a circular box, made of brass, or any other proper material,

page_text: of about an inch in depth, or four or five inches in diameter, consisting of two
rims, one larger than the other: the larger one has the bottom to it, the lesser
one I make to turn in the larger one, to which I affix a pierced or perforated
front or top, which may be done to any pattern; to the outer or larger rim
I aflix two or more tubes of a convenient length, at right angles, as large as
the depth of the box will admit of. On the inner rim I make holes cor-
responding to the size of the tubes, which by turning round are made to close
any one or more of the tubes at pleasure. I also make an index on the outside
of the pierced or perforated front to shew which of the tubes are closed or
which are open, or I make my ventilator without such index, as required.
This box or ventilator may be fixed (if for close carriages or sedan chairs)
between the lining and the roof, the pierced or perforated front to be visible;
the tubes are then to be extended to the extremity or outside of the carriage
or sedan chair. The tube which extends to the back of the carriage where
the servant stands will serve to convey any orders that may be given to the
servant from the passengers within, but may be closed at pleasure, when the
other tubes will be left open for the purpose of letting the warm air escape.
If made on a larger scale for the purpose of being applied to the ceilings of
rooms, cabins of ships, &c., both the top and bottom of the box may be fixed
to one rim, with large perforations in the front.
In witness wheroof, I, the said William Collins, have hereunto set my
hand and seal, this Seventh day of September, in the year of our Lord
One thousand eight hundred and five.