Improvements in the Connection of the Gun Barrels to the Breech Pieces of Double Barrelled and other Small Arms.
Year: 1892

page_text: Date of Application, 20th Dec., 1892
Complete Specification Left, 17th Feb., 1893-Accepted, 1st Apr., 1893
MUDIONAU
Improvements in the Connection of the Gun Barrels to the Breech
Pieces of Double Barrelled and other Small Arms.
We, RUDOLF SAUER, and FRANZ SAUER, both of Suhl-in-Thuringen,
Germany, Gunmakers, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the securing of the barrels of double-barrelled and
other fire arms.
According thereto the connection of the gun-barrels with the part to which they
are to be secured hereinafter termed the breech piece is effected by means of
under-cut projections or segmental dovetails formed on the gun barrel at or near
the breech, and by corresponding undercut grooves or recesses formed in the breech
piece with which the said projections engage thus holding the barrel in a firm and
secure manner.
the like.
To prevent moisture penetrating, the joint may be finished with soft solder or
Referring to the accompanying illustrative drawings,
Fig. 1 is a perspective view of the breech part of a double barrelled gun, with
the barrels secured according to this invention.
Fig. 2 is a longitudinal section of the chamber of one barrel, and
Fig. 3 is a corresponding view to Fig. 1, one of the barrels being removed.
Figs. 4 and 5 are corresponding perspective views illustrating the application of
my invention to a triple barrelled gun, one of the barrels being removed in
Fig. 5.
In Figs. 1-3, b is the left hand, and the right hand barrel. Each barrel
has a segmental dovetail or undercut segment which extends nearly half way
round it. The breech piece which is bored taper to correspond to the taper
of the barrel, has two dovetail or undercut grooves or recesses s and s¹ which
correspond in width and depth exactly with the projections r and rl.
The breech piece is provided in the usual manner with a hook or catch h and
midrib w.
The connection of the barrels with the breech piece is effected by placing the
rear end of the barrel in the recess c when by a partial turn of the barrel, the
projections can be readily caused to enter and firmly fixed in the recesses s s¹.
As stated in order to prevent moisture from penetrating between the barrels and
the breech piece the barrels may be soldered over with soft solder.
Figs. 4 and 5 illustrate the application of this invention to a triple barrelled gun.
In this case, the breech piece is formed in one with the lower barrel and the
other two barrels are secured in the same manner as in the arrangement just
described. To this end there are formed two grooves s and s¹ (Fig. 5) in each of
the recesses o of the breech piece but in this case the grooves are shorter and
extend only halfway round the recesses c in order not to weaken the wall of the
lower barrel.
The segmental dovetails or undercut segments on the gun barrels are
correspondingly shorter, extending round only about one quarter of the barrel.
The fixing is effected in exactly the same manner as just described with or without
soldering.
This system of fixing the barrels is perfectly secure and has the advantage that
in consequence of the undercutting or dovetailing of the breech piece the solder if
such is used is not subject to strain, so that hard soldering is dispensed with, and
the consequent liability to overheating and warping or bending of the barrels is

page_text: avoided. Moreover a damaged barrel can be replaced in a very simple manner,
and the breech pieces which are preferably of steel, can be made interchangeable
because said breech pieces are not located within the range of fire.
Dated this 20th day of December 1809
RUDOLF SAUER,
By L. W., per F. B.
FRANZ SAUER,
By L. W., per F. B.
COMPLETE SPECIFICATION.
Improvements in the Connection of the Gun Barrels to the Breech
Pieces of Double Barrelled and other Small Arms.
We, RUDOLF SAUER, and FRANZ SAUER, both of Suhl-in-Thüringen,
Germany, Gunmakers, 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 the securing of the barrels of double-barrelled and
other fire arms to the breech piece thereof.
According thereto the connection of the gun-barrels with the part to which they
are to be secured hereinafter termed the breech piece is effected by means of
undercut projections or segmental dovetails formed on the gun barrels at or near
the breech, and by corresponding undercut grooves or recesses formed in the breech
piece and into which the said projections or dovetails are adapted to enter so as to
hold each barrel in a firm and secure manner.
To prevent moisture penetrating between the parts and rusting them the joint
may be finished with soft solder or the like.
Referring to the drawings filed with our Provisional Specification,
Fig. 1 is a perspective view of the breech part of a double barrelled gun
together with the barrels secured thereto according to this invention.
Fig. 2 is a longitudinal section of the chamber of one barrel and
Fig. 3 is a corresponding view to Fig. 1 one of the barrels being removed.
Figs. 4 and are corresponding perspective views illustrating the application
of the invention to a triple barrelled gun, one of the barrels being removed in
Fig. 5.
In Figs. 1-3, b is the left-hand, and 6¹ the right hand barrel. Each barrel has
a segmental dovetail or undercut segment r¹ which extends nearly half way round
it. The breech piece which is bored taper to correspond to the taper of the
barrel, has two dovetail or undercut grooves or recesses ; and 8' which correspond
in width and depth exactly with the projections r and r¹.
The breech piece is provided in the usual manner with a hook or catch h and
midrib w.
The connection of the barrels with the breech piece is effected by placing the
rear end of the barrel in the recess c when by a partial turn of the barrel,
the projections can be readily caused to enter and be firmly fixed in the
recesses s¹.
As before mentioned in order to prevent moisture from penetrating between
the barrels and the breech piece the barrels may be soldered over with soft
solder.
Figs. 4 and 5 illustrate the application of this invention to a triple-barrelled
gun. In this case, the breech piece v¹ is formed in one with the lower barrel and
the other two barrels are secured in the same manner as in the arrangement herein-
before described. To this end there are formed two grooves s and s¹ (Fig. 5) in
the side wall of each of the recesses c of the breech piece v¹ but in this case the
grooves are shorter and extend only half-way around the recesses c in order not to
weaken the wall of the lower barrel.

page_text: The segmental dovetails or undercut segments on each of the gun barrels
are correspondingly shorter, extending round only about one quarter of the barrel.
The fixing is effected in exactly the same manner as just described, with or without
soldering.
This mode of fixing the barrels is perfectly secure and has the advantage
that in consequence of the undercutting or dovetailing of the breech piece the
solder if such is used is not subject to strain, so that hard soldering is dispensed
with, and the consequent liability to overheating and warping or bending of the
barrels is avoided. Moreover a damaged barrel can be replaced in a very simple
and easy manner and the breech pieces which are preferably of steel can be made
interchangeable.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
A fire arm in which the connection of each gun barrel with the breech piece is
effected by means of undercut projections or segmental dovetails (rr!) formed on
the exterior of the gun barrel and adapted to enter correspondingly formed grooves
or recesses (s) in the breech piece in such a manner that the two will be firmly
held together whether or not soft solder be used for preventing the entrance of
moisture and formation of rust between the connected parts substantially as
described and shown.
R. SAUER,
By L. W., per F. B.
F. SAUER,
By L. W., per F. B.