Year: 1886

page_text: Date of Application, 31st Dec., 1886
Complete Left, 30th Sept., 1887
Complete Accepted, 1st Nov., 1887
I GEORGE QUICK of Chipping Campden in the County of Gloucester Fleet Engineer
Royal Navy do hereby declare the nature of this invention to be as follows:-
This Invention relates to an alteration in the form of the breechscrew and to an
alteration in the form of the ends of the cylindrical part of the recess in the gun for
the reception of the said breechscrew described in the Specification of my Letters
Patent No. 4139 dated 24th March 1886.
By this alteration the portion of the surfaces of the front and rear ends of the said
breechscrew at the major diameter are formed into male screw thread like surfaces,
and the front and rear ends of the cylindrical recess in the gun are formed into female
screw thread like surfaces to correspond with the male screw thread like surfaces
formed on the ends of the breechscrew. The screw thread formed on these end
surfaces may be either of the kind known as single threaded or double-threaded.
The screw thread described and shown on the cylindrical periphery of the breech-
screw referred to in the Specification of my beforenamed Letters Patent No. 4139
dated 1886 may be retained and used in conjunction with the screw thread like
surfaces formed on the ends of the breech screw. Or the screw thread on the cylin-
drical periphery of the breechscrew and the female screw thread in the cylindrical
surface of the recess of the gun may be absent altogether in which case the whole
backward thrust or pressure of the powder gas will be borne entirely by the rear face
of the large part of the said breechscrew bearing against the rear end of the
cylindrical recess in the gun.
Dated this Thirtieth day of December 1886.

page_text: Improvements in Breechloading Ordnance.
I, GEORGE QUICK, of Chipping Campden, in the County of Gloucester, Fleet
Engineer, Royal Navy, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement
This invention relates to an alteration in the form of the breech-screw and to an
alteration in the form of the ends of the cylindrical part of the recess in the gun for
the reception of said breech-screw described in the specification of my Letters
Patent No. 4139, dated 24th March 1886.
By this alteration the portion of the surfaces of the front and rear ends of the said
breech-screw at the major diameter are formed into male screw-thread like surfaces,
and the front and rear ends of the cylindrical recess in the gun are formed into female
screw-thread like surfaces to correspond with the male screw-thread like surfaces
formed on the ends of the breech-screw. The screw-thread formed on these end
surfaces may be either of the kind known as single-threaded or double-threaded.
The screw-thread described and shown on the cylindrical periphery of the breech-
screw referred to in the Specification of my before-named Letters Patent No. 4139
dated 1886 may be retained and used in conjunction with the screw-thread like
surfaces formed on the ends of the breech-screw. On the screw-thread on the
cylindrical periphery of the breech-screw and the female screw-thread in the
cylindrical portion of the recess of the gun may be absent altogether in which case
the whole backward thrust or pressure of the powder gas will be borne entirely by
the rear face of the large part of the said breech-screw bearing against the rear end
of the cylindrical part of the recess in the gun.
And in order that my invention may be thoroughly understood and carried into
practical effect I have caused to be annexed to this specification the accompanying
two sheets of drawings and now refer to the figures and lotters of reference marked
thereon.
Figure 1 is a plan of the rear end of a gun showing the breech closed and the
breech-screw lever in position as when ready for firing.
Figure 2 is a plan of a breech-screw and breech-screw lever, the breech-screw
having its cylindrical periphery formed with a screwed surfaces and its front and rear
faces provided with screw-thread like surfaces.
Figure 3 is a plan of a breech-screw and breech-screw lever, the breech-screw
having its cylindrical periphery formed plain and its front and rear faces provided
with screw-thread like surfaces.
Figure 4 is a vertical section of Figure 1 taken along the line a - - -
same construction of breech-screw as is illustrated by Figure 2.
b showing the
Figure 5 is a vertical section of Figure 1 taken along the line a - - - 6 showing the
same construction of breech-screw as is illustrated by Figure 3.
In these figures similar letters of reference indicate corresponding parts.

page_text: A is the breech. B is the breech-screw, b, b are the male screw-thread like surfaces
formed on the front and rear faces of the breech-screw B which engage with corre-
sponding female screw-thread like surfaces b', b' formed in the front and rear ends of
the cylindrical recess in the breech A. 62 is the male screw-thread formed on the
cylindrical periphery of the breech-screw B which engages with the corresponding
female screw-thread 63 formed in the cylindrical part of the recess in the breech A,
as is indicated by Figure 4. is the plain cylindrical periphery of the breech-
screw B which rotates in the corresponding cylindrical portion 6º of the recess in the
breech A of the gun. C is the breech-screw lever.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is.
As a means of closing the breech of a gun the use of a breech-screw formed with
male screw-thread like surfaces at its front and rear faces adapted to engage with
corresponding female screw-thread like surfaces formed in the front and rear ends of
the cylindrical recess in the breech of a gun either alone or in combination with a
male screw-thread formed on the cylindrical periphery of the breech-screw adapted
to engage with a female screw-thread formed in the cylindrical portion of the recess
in the breech of the gun substantially as and for the purposes described and illustrated
by the accompanying drawings.
Dated this 20th day of Santambar 1887