A NEW ARRANGEMENT OF ADDITIONS TO AND ALTERATIONS IN CERTAIN PARTS OF GUN AND PISTOL Locks
Year: 1833

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
CHARLES JONES, of Birmingham, Gun Maker, send greeting.
WHEREAS His present most Excellent Majesty King William the
Fourth, by His Letters Patent under the Great Seal of Great Britain,
bearing date at Westminster, the Twelfth day of June, in the third year
of His reign, did, for Himself, His heirs and successors, give and
grant unto me, the said Charles Jones, His especial licence that I,
the said Charles Jones, my exors, adñiors, and assigns, or such others
as I, the said Charles Jones, my exors, adññiors, or assigns, should at
any time agree with, and no others, from time to time and at all times
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 a "A NEW ARRANGEMENT OF
ADDITIONS TO AND ALTERATIONS IN CERTAIN PARTS OF GUN AND PISTOL
Locks; in which said Letters Patent is contained a proviso, obliging
me, the said Charles Jones, by an instrument in writing under my
hand and seal, particularly to describe and ascertain the nature of my
said Invention, and in what manner the same is to be performed,
and to cause the same to be enrolled in His said Majesty's High
Court of Chancery within six calendar months next and immediately

page_text: after the date of the said recited Letters Patent, as in and by the same,
reference being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the
said Charles Jones, do hereby declare that the nature of my said
Invention to consist :-
First, as regards the said new arrangement in attaching the main
spring, tumbler, sear, and bridle to a centre rise or block formed on the
trigger plate for that purpose; also in forming the hammer upon and
in one piece with the tumbler, and causing the trigger and sear to act
on one and the same centre or axle, and witli one coniinion spring.
Secondly, as regards the said additions in affixing a bell or cap to the
end of the hammer, and in a sinall chamber furnished with a vent
attached to the break-off, in which chamber the cap or patch explodes,
and thereby the foul air and gas caused by the explosion is prevented
from getting into the lock. And thirdly, as regards the said alterations
in having no hammer on the cock, no separate trigger spring, and
making the centre risc, before mentioned, on the trigger.plate serve the
office of the ordinary lock plate. And in further compliance with the
said proviso, I, the said Charles Jones do hereby describe the manner in
which my said Invention is to be performed, by the following statement
thereof, reference being had to the Drawings annexed, and to the
figures and letters marked thereon (that is to say):
DESCRIPTION OF THE DRAWINGS.
Drawing A, represents the various parts of a pair of locks for a double
barrelled gun on my improved principle, and shews the lock also in
various positions. Figure 1, shews a side elevation of a pair of locks
at half cock, with one cocking lever removed, the better to shew the
parts which would otherwise be concealed by it; the tumbler and
hammer of the right lock are of course exactly behind those of the left
lock in this Figure, and therefore concealed by them. A, and B, are the
trigger plate and centre rise made in one piece, B being the centre
rise or block before mentioned, answering the purpose of the lock plate;
C, is the ordinary trigger guard; D, is the main spring attached to
this rise, in the same manner as it is usually attached to the lock plate;

page_text: e, is the swivel acted upon by the main spring in the ordinary manner;
F, is the bridle; G, the tumbler; H, the hammer, being in one piece
with the tumbler; I, is a bell or cap fixed on the end of the hammer,
acting in manner herein-after explained; J, is the cocking lever fitted
on a square formed for that purpose on the axis of the tumbler; K, is
the sear, and T, the sear spring; M; is one of the trigger blades, and
both the trigger and sear turn on the same centre or axis r; N, is
merely a stud to receive the screw or end of the breech pin. Figures 2,
3, 4, 5, and 6, are separate views of the different parts I have been.
describing. Figure 7, is a view of the right lock, the left lock being
removed, the better to shew the centre rise B. In this Figure the
tumbler is shewn down as it would be after discharging the piece; and
it will save much repetition in the description if I here state that similar
letters of reference are used to denote similar parts in all the Figures.
Figure 8, is a side elevation similar to Figure 1, except that the
tumbler is here shewn down. It will be observed by examining the fore-.
going Figures,
First, that the whole lock is built as it were upon the centre rise B,
which is formed in one piece with, or fixed on to the trigger plate, and
answers the purpose of the ordinary lock plate.
Secondly, that the hammer is formed in one piece with or fixed on to
the tumbler.
And, thirdly, that the sear and trigger both turn on the same centre
or axis; and all these I consider novel features of my said Invention.
I shall now proceed to describe the remaining parts of 'my said
Invention, and shew the lock applied.to its gun stock. :
.
For this purpose I must refer to the Drawing marked B, where
Figure 9, is a plan of the break-off'; the part colored pink being an
addition either braised on screwed on to it, or worked out of the solid.
iron, and forming two small chambers which I call the exploding.
chambers, each having a vent opening. at one side, and a circular.
aperture behind, so placed that when the plugs of the barrells of
the gun are placed in the break-off, each nipple shall stand in the
centre of the circular hole, as shewn at Figure 10.. "The nipple may.
either protrude a little beyond the circular- hole or not, as may be.

page_text: found convenient. This Figure shews the position of the lock in the
stock of the gun. O, is the hut of the plug; P, the nipple, which it
will be seen protrudes through the hole in the back of the chamber Q; so
far that when the piece is fired (the lock being now supposed to be at full
cock) the bell I, at the end of the hammer, assumes the position shewn
by the dotted lines, its rim fitting into a groove cut round the hole at
the back of the chamber Q, for that purpose, while the hammer, the
end of which projects a little way into the cup of the bell, strikes on
the ipple; S, is the vent hole at the side, and it will be seen by this
arrangement that when the cap explodes the bell on the hammer
fits so closely in the groove that very little smoke or gas can get back
into the lock, but almost all the foul air must find its vent at the side.
aperture S. By reference to Figure 9, it will be seen that a slide is
intended to move between the raised sides V, V, of the break-off.
This slide is shewn at W, in Figure 10, which it will be observed
has just those parts shown which it was thought would make the Figure
most explanatory, and no more.
Figure 11, is a section of the exploding chamber Q, shewing the
two side vents S, S; and Figure 12 is an end view of the breech,
shewing the two apertures through which the nipples project, with the
groove round them to receive the rim of the bell I.
Now whereas I claim as my Invention the centre rise B, on the
trigger plate, and attaching the various parts of the lock thereto, as also
making the hammer and tumbler form one piece, or, in other words,
placing the hammer on the tumbler, and by placing the trigger so as to
turn on the same centre or axle as the sear; also the bell at the end of
the hammer, and the exploding chambers herein-before described. And
such my Invention being to the best of my knowledge and belief
entirely new, and never before used within that part of His said
Majesty's United Kingdom of Great Britain and Ireland called Eng-
land, His said Dominion of Wales, or Town of Berwick upon Tweed,
I do hereby declare this to be my Specification of the same, and
that I do verily believe this my said Specification doth comply in all
respects fully, and without reserve or disguise, with the proviso in the
said herein-before in part recited Letters Patent contained.

page_text: Wherefore I do hereby claim to maintain exclusive right and
privilege to my said Invention.
In witness whereof, I, the said Charles Jones, have hereunto set
my hand and seal, the Seventh day of December, in the year
of our Lord One thousand eight hundred and thirty-three.

page_text: In the Matter of a Patent granted to CHARLES JONES, of Birmingham,
in the County of Warwick, Gun Maker, for "A NEW ARRANGEMENT
OF ADDITIONS TO AND ALTERATIONS IN CERTAIN PARTS OF GUN AND
PISTOL LOCKS," bearing date at Westminster, the Twelfth day of
June, One thousand eight hundred and thirty-three.
DISCLAIMERS AND MEMORANDUMS OF ALTERATIONS entered by
the said Charles Jones with the Clerk of the Patents of England, pur-
suant to an Act passed in the fifth and sixth years of His present
Majesty, entitled "An Act to amend the Law touching Letters Patent
"for Inventions."
I, the said Charles Jones, hereby declare that I have very lately discovered
that the "attaching of the main spring, tumbler, sear, and bridle to a centre
"rise or block formed on the trigger plates for that purpose," is not new,
though I believed it was so when I enrolled my Specification of my Inven-
tion, for which reason I hereby disclaim that part of the Specification of the
said Patent.
And further, I, the said Charles Jones, do hereby declare that "causing the
trigger and sear to act with one common spring" is not a useful arrange-
ment, for which reason I hereby further disclaim that part also of the said
Specification.
And further, I, the said Charles Jones, do hereby declare that for the
reasons aforesaid I hereby further disclaim that part of the said Specification

page_text: comprised under the third head of Invention, and which is in the words
following, that is to say, "no separate trigger spring and making the centre
"rise before mentioned on the trigger plate serve the office of the ordinary
"lock plate."
And further, I, the said Charles Jones, do hereby declare that for the
reasons aforesaid I do hereby further disclaim that part of the said Spe-
cification comprised in what is called the claiming clause, and which consists
of the following words, that is to say: "The centre rise B on the trigger
"plate, and attaching the various parts of the lock thereto."
And further, I, -the said Charles Jones, do hereby make the following
alteration in the said Specification, that is to say, I omit the word "by "
in the said claiming clause, for this reason, namely, the same having
been apparently inserted by mistake, inasmuch as the sense required such
alteration.
And further, I, the said Charles Jones, do hereby make the following
alteration in the title of my said Invention, for this reason, namely, in order
to make the same consistent with what my said Specification will describe my
said Invention to be when such Disclaimers as aforesaid shall have been entered
as aforesaid (that is to say), I hereby substitute the words "an alteration" for
the word "alterations" in the said title.
In witness whereof, I have hereunto set my hand, this Twenty-first
day of September. One thousand eight hundred and thirty-five.
This is to certify, that Charles Jones, of Birmingham, Gun Maker, has
applied to me for leave to enter with you the above-written Disclaimers and
Memorandum of Alterations of parts of the title and of the Specification of a
certain Invention, for which Letters Patent were duly granted to the said
Charles Jones, under the Great Seal, dated the Twelfth day of June, in the
year 1833, and the Specification of which was was inrolled on the Seventh day
of December, in the year aforesaid; I have accordingly allowed the same, and
you are hereby authorized and directed to file the above-written Disclaimers
and Memorandum of Alterations, pursuant to the Statute passed in the fifth
and sixth year of the reign of His present Majesty, intituled an Act to
amend the Law touching Letters Patent for Inventions.
I CAMBRELL

page_text: AND BE IT REMEMBERED, that on the Twenty-fifth day of January, in
the year of our Lord 1836, the aforesaid Charles Jones came before our said
Lord the King in His Chancery, and acknowledged the Disclaimer aforesaid,
and all and everything therein contained and specified, in form above written.
And also the Disclaimer aforesaid was stamped according to the tenor of the
Statute made for that purpose.
Inrolled the Twenty-sixth day of January, in the year of our Lord One
thousand eight hundred and thirty-six.