IM- PROVEMENTS IN BREECH-LOADING FIRE-ARMS
Year: 1862

page_text: LETTERS PATENT to John William Parker Field, of 233, High Holborn,
in the County of Middlesex, Gun Maker, for the Invention of "IM-
PROVEMENTS IN BREECH-LOADING FIRE-ARMS."
Sealed the 26th June 1863, and dated the 31st December 1862.
PROVISIONAL SPECIFICATION left by the said John William Parker
Field at the Office of the Commissioners of Patents, with his Petition,
on the 31st December 1862.
I, JOHN WILLIAM PARKER FIELD, of 233, High Holborn, in the County
of Middlesex, Gun Maker, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN BREECH-LOADING FIRE-ARMS," to be as follows:-
My Invention has for its object the diminution of the metal in the joint
piece, so as to admit of its being inserted in the wood, and the gun being
thereby made in the form of an ordinary "bar" gun.
For this purpose instead of employing a bolt with a circular motion as usual
for closing the joint, I adapt and apply a slotted bolt with a rectilinear motion
to the pivot of the lever, such bolt being projected into a notch, to close the
joint by means of a cam or cams formed or fixed on the said pivot of the lever.
The extent of movement of the bolt is limited by the length of the slot,
and of the cam or cams, and there is or may be a spring in the box in which
the bolt is contained, which has a constant tendency to press the bolt into the
notch.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John William Parker Field in the Great Seal Patent Office
on the 80th June 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
WILLIAM PARKER FIELD, of 233, High Holborn, in the County of Middlesex,
Gun Maker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirty-first day of December, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and sucoessors, give and grant unto me,
the said John William Parker Field, Her special license, that I, the said
John William Parker Field, my executors, admors, and assigns, or such others
as I, the said John William Parker Field, 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 BREECH-LOADING FIRE-ARMS,"
upon the condition (amongst others) that I, the said John William
Parker Field, by an instrument in writing under my hand and seal,
should particularly describe and ascertain the nature of the said Inven-
tion, 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 William Parker Field, do hereby
declare the nature of my said Invention, and in what manner the samo is
to be performed, to be particularly described and ascertained in and by the
following statement, reference being had to the Drawings hereunto annexed,
and to the letters and figures marked thereon (that is to say) :-
My Invention of "Improvements in Breech-loading Fire-arms," has for its
object the diminution of metal in the joint piece, so as to admit of its being
inserted in the wood, and the gun being thereby made in the form of an
ordinary "bar" or front action lock gun.
For this
purpose instead of employing a bolt with a circular motion as usual

page_text: the same is to be performed, I hereby declare that what I claim as of my
Invention is, the use of a slotted bolt with a rectilinear motion, worked by a
lever in a horizontal direction, admitting of the diminution of metal in the joint
piece, as represented and described.
In witness whereof," I, the said John William Parker Field, have 5
hereunto set my hand and seal, the Thirtieth day of June, in the year
of our Lord, One thousand eight hundred and sixty-three.
Witness,
WILLIAM SPENCE,
Patent Agent,
50, Chancery Lane.
JOHN W. P. FIELD. (L.S.)