AN IMPROVED CONSTRUCTION, ARRANGEMENT, AND SIMPLIFICATION OF MACHINERY BY WHICH GUNS, PISTOLS, AND OTHER FIRE-ARMS ARE DISCHARGED
Year: 1825

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I.
ISAAC RIVIERE, of Oxford Street, in the Parish of Saint George,
Hanover Square, in the County of Middlesex, Gun Maker, send
greeting.
WHEREAS His most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing
date at Westminster, the Twentieth day of May, in the sixth year of
His reign, did give and grant unto me, the said Isaac Riviere, my
executors, adññors, and assigns, His especial licence, full power, sole
privilege & authority, that I, the said Isaac Riviere, my exors, adiñiors,
and assigns, during the term of years therein expressed, should and
lawfully might make, use, exercise, and vend, within England, Wales,
and the Town of Berwick-upon-Tweed, my Invention of "AN IMPROVED
CONSTRUCTION, ARRANGEMENT, AND SIMPLIFICATION OF MACHINERY BY WHICH
GUNS, PISTOLS, AND OTHER FIRE-ARMS ARE DISCHARGED;" in which said
Letters Patent there is contained a proviso obliging me, the said
Isaac Riviere, particularly to describe and ascertain the nature of my
said Invention, and in what manner the same is to be performed, by
an instrument in writing under my hand and seal, and to cause the same
to be inrolled in His Majesty's High Court of Chancery within six

page_text: calendar months next and immediately after the date of the same
Letters Patent, as in and by the same Letters Patent, relation being
thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso I, the
said Isaac Riviere, do hereby declare that the nature of my said
Invention, and the manner in which the same is to be performed, are
particularly described and ascertained in and by these presents, refer-
ence being made to the Drawing hereunto annexed, and the following
description thereof (that is to say):
My Invention of an improved construction, arrangement, and
simplification of the machinery by which guns, pistols, and other
fire-arms are descharged consists in dispensing with certain parts of
the ordinary gun lock, and substituting other parts for similar purposes,
and arranging the mechanism in a different way to that of any machine
or lock heretofore made for the discharge of fire-arms, which improve-
ments are exhibited in the Drawing hereto annexed, and will be made
fully evident by the following description thereof, that is to say-
Fig. 1, is a section of a gun or fowling piece cut lengthways through
the stock and barrel; Fig. 2, is an external representation of the same.
This gun is intended to be discharged by means of percussion, but the
improved construction of the machinery will apply also to guns dis-
charged by flints. a, is the barrel; b, the nipple, through which the
fire from the percussion passes to the charge; c, c, is the false breech,
through which an aperture is made for the cock d, to work in (see
Fig. 3). The cock d, and the tumbler e, are in one piece (see Fig. 4).
f, is the main spring attached to the under side of the false breech, and
connected to the tumbler by a swivel g; the the force of this spring acts
upwards, and causes the cock, when released from the sear, to fall upon
the nipple with great force; h, is the sear; and i, is the trigger. The
sear and trigger are in one piece, as shewn in different positions in the
detached Figures 5. 6. and 7. k, is the sear and trigger spring which
keeps the sear and trigger up to their proper bearing. This improved
machinery, though shewn only as applied to a single barrelled gun, may
be adapted also to a double barrelled gun, in which case the parts will
require to be repented.

page_text: Though I have described the entire construction of the machinery,
and the form of all its pieces, yet I wish it to be understood that I do
not claim all those parts as new, having used some of them before; but
I claim as new the form of the piece constituting the sear and trigger.
I also claim as new the attachment of the main spring to the false
breech.
In witness whereof, I, the said Isaac Riviere, have hereunto set
my hand and seal, this Nineteenth day of November, in the
year of our Lord One thousand eight hundred and twenty-five.