Improvements 'in or relating to "Revolvers.
Year: 1888

page_text: Improvements 'in or relating to "Revolvers.
1, TOR FABIAN TORNELL of Carlsborg in the Kingdom of Sweden, Lieutenant
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:-
In the construction of some common revolvers, the breech-piece may freely turn
round in one direction between each firing of the weapon, and thus it may inadvertently
get into such a position, that when using the revolver, the hammer may instead of
discharging the revolver, hit a cartridge which has already been fired. This, it
will be understood, is a great inconvenience inherent to the construction of such
revolvers. Another inconvenience is that there is nothing to prevent the hammer
being inadvertently raised by striking or getting into contact with something, owing
to this fatal accidents may happen.
The revolver represented in Figure 3 of the annexed drawing is an example of a
modification or improvement of the revolver shewn in Figure 1, and has for its
object to remove the above inconveniences. Figures 4 and 5 shew the trigger
constructed in accordance with this invention, and Figure 6 a section of the breech-
piece or cylinder. For the sake of comparison, Figures 1 and 2 represent a revolver
and trigger without my improvements, which construction may (as will be seen from
the drawing) be easily altered so as to produce a revolver in accordance with this
invention.
The trigger of a revolver disposed according to this invention is made in two parts,
a fore part A, the trigger properly so called, and a hind part B, see Figures 3, 4 and 5.
These two parts are pivoted on the same pivot C, which is preferably effected in such
a way, that the one part is provided with a slot and the other part with a piece
corresponding to and entering into the slot, the pivot holes passing through both
parts when in position in a straight line. Between the said two parts a spiral or
plate spring is adapted, (on the drawing a plate-spring D is represented) The spring
may, however, be arranged differently, the object being to always separate the two
parts as far from each other as the construction will allow, when the trigger is not

page_text: being actuated, or when it is actuated to cause the parts to spring apart when the
trigger is released. On the fore part of the trigger there is at a a projection or tooth,
which, when the trigger is at rest, is pressed against the breech-cylinder or piece, E,
of the revolver, the said breech cylinder having the same number of cams or pieces F,
as there are charges in the breech cylinder. Those cams are so disposed that one of them
always abuts or nearly abuts against the projection a on the fore part of the trigger, after
the weapon has been fired. The breech-cylinder will thus be prevented by the tooth a
from turning in one direction From being turned in the other direction it is
hindered by the so-called rotator. The hammer cannot be cocked by directly pulling
it, until the fore part of the trigger is drawn back a little by the finger, for in order
to cock the hammer in this way it is necessary that the breech-piece be disengaged, so
that the rotator" can turn the same. By drawing the fore part of the trigger a
little back, the hammer may be cocked by a direct pull at it, and the breech-piece
may be turned at will in one direction. In cocking automatically the weapon is
manipulated as usual.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
In revolvers, the means, substantially as described, for preventing the breech piece
from turning between each firing of the weapon, which consists in the combination
of a trigger formed in two parts, each pivoted on a common pivot and provided with
a spring between them (the said parts being so made that the fore part can impart
motion to the second part) and a breech piece having a series of cams or projections,
of which always one (when the fore part of the trigger is at rest, and consequently
pressed forward by the aforesaid spring) abuts or nearly abuts after the weapon is
fired against a tooth on the fore part of the trigger, and thus prevents the breech
piece from revolving.
D