IMPROVEMENTS IN BAROMETERS
Year: 1862

page_text: LETTERS PATENT to William Hinton, of Greville Street, Holborn, in
the County of Middlesex, Barometer Manufacturer, for the Invention of
"IMPROVEMENTS IN BAROMETERS."
Sealed the 15th August 1862, and dated the 19th February 1862.
PROVISIONAL SPECIFICATION left by the said William Hinton at the
Office of the Commissioners of Patents, with his Petition, on the 19th
February 1862.
I, WILLIAM HINTON, of Greville Street, Holborn, in the County of Mid-
dlesex, Barometer Manufacturer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN BAROMETERS," to be as follows:-
This Invention relates to certain improvements in the class of barometers
known as "wheel" barometers by means of which mariners or fishermen
may observe the various indications thereon when at a distance from the
coast.
I propose to make the dials of such barometers of a suitable transparent
substance, such as glass, linen, or prepared paper, and placing one on each
side of a suitably constructed frame, that facing the sea being provided with
the various ordinary. indications. The dials are to be of a size sufficiently
large to allow of mariners observing the indicator from a distance at sea, and
at night a light is to be placed behind the dials, which being transparent, or
nearly so, will allow the indications to be seen with great facility.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Hinton in the Great Seal Patent Office on the
19th August 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
HINTON, of Greville Street, Holborn, in the County of Middlesex, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Nineteenth day of February, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said William Hinton, Her special licence that I, the said William Hintou, my
executors, administrators, and assigns, or such others as I, the said William
Hinton, 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 BAROMETERS,"
upon the condition (amongst others) that I, the said William Hinton, 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 William Hinton, do hereby declare the
nature of my 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 relates to certain improvements in barometers, but more
especially with reference to the class known as "wheel barometers," by which
means mariners or fishermen may observe the various indications thereon
when at a distance from the coast.
In order to explain my said Invention as completely as possible, I now
proceed to describe the best means I am acquainted with for carrying the
same into practical effect, as follows:-I make the dials or indicators of any
description of barometer, but especially of wheel barometers, either of glass
ground, or glass having paper, linen, calico, silk, or other similar substance
attached thereto, with the various indications marked, printed, or transferred

page_text: thereon; thus the dials would have a semi-transparent appearance, and when
placed in suitably constructed framings facing the sea, could be observed
from a distance.
At night a light or illuminator is to be placed behind the said dials, which
being semi-transparent, will allow of their being raised to higher situations
than usual, and thus permit of the various indications being seen with facility
and accuracy even from a great distance.
Having now described the nature and object of my said Invention of
"Improvements in Barometers," and the manner in which the same is to be
performed, I would remark in conclusion, that I do not confine or restrict
myself to the use of any particular material of which the aforesaid dials are
to be made, nor to any particular kind of barometer to which the Invention
may be applied, as many different materials not herein mentioned may be
used to effect the same purpose without in any way departing from the
principle of my Invention; but what I claim as my Invention, and therefore
desire to be secured to me by the herein in part recited Letters Patent is, the
application of transparent or semi-transparent dials or indicators, in combi-
nation or not with lights or illuminators, to barometers of nearly every deno-
mination, in the manner herein described, for the purposes set forth.
In witness whereof, I, the said William Hinton, have hereunto set my
hand and seal, this Second day of August, One thousand eight hundred
and sixty-two.
Witness,
L. J. WETHERELL,
Clerk to Messrs. Prince & Co.,
4, Trafalgar Square,
Charing Cross.
WILLIAM HINTON. (L.S.)