IMPROVEMENTS IN REVOLVERS
Year: 1873

page_text: PROVISIONAL SPECIFICATION left by Alexander Browne at the Office
of the Commissioners of Patents, with his Petition, on the 15th
April 1873.-A communication from abroad by Claudo François
Anatole Basset, of Paris, in the French Republic.
I, ALEXANDER BROWNE, of the Firm of Browne and Company,
Patent Agents, of 85, Gracechurch Street, in the City of London, do
hereby declare the nature of the said Invention for "IMPROVEMENTS
IN REVOLVERS," a communication to him from abroad by Claude
François Anatole Basset, of Paris, in the French Republic, to be as
follows:-
This Invention relates to an improved method of constructing
revolvers and other fire-arms constructed on the revolver principle, and
consists particularly in the arrangement and working of the battery and
the way of fitting it up.
The parts forming the battery consist of an oscillating hammer
placed inside the butt or stock of the arm, a pawl for regulating the
motion of the drum which revolves on the hammer, a plate for giving
motion to the pawl and hammer and moved by the trigger, a percussion

page_text: spring which acts simultaneously on the hammer and the pawl, and
astly, a back spring acting on the plate and trigger.
The main feature of this Invention consists in the pawl having no
spring. The hammer, pawl, and plate, are so disposed and construoted
that when the trigger is pulled the plate acts on the end of the pawl
and forces it to take into one of the teeth of the drum before the.
hammer begins to rise; the plate continuing its motion comes in
contact with the bottom of a slot in a lump on the hammer and lifts it
up in the same time as the pawl. This arrangement allows of a special
half-cock motion herein-after explained. The butt or stock is cast or 1
made in such a way as to present two faces to which may be applied
plates of ivory, bouc, horn, or other substance. The right-hand side of
the back of the drum cage is made of one piece with the body of the
cago forms
butt or stock, and the left-hand side of the back of this drum
a kind of door through which the chambers are loaded; the axle of the
door which is crosswise of the butt has in the middle a small cam or
lump which when the door is open lifts up the hammer a little, also
allows the drum to be turned by hand, and thus prevents the hammer
from dropping suddenly.
This Invention will be better understood by reference to the accom-
panying Drawing which represents a revolver constructed according
to this Invention.
Figure 1 shows a longitudinal view of the revolver seen on the left-
hand side, the butt being shown in longitudinal section, so as to
expose to view the arrangements of the battery; Figure 2 shows a back
view of Figure 1; Figure 3 a side view of the hammer; Figure 4 the
pawl; Figure 5 the trigger; Figure 6 a side view and plan of the plate.
these Figures similar letters refer to similar parts.
barrel; b, cage of drum; c, drum which may be of any con
ction; d, body of the butt or stock; e, e, facings of bone, ivory
orn, or other material; f, back view of the right-hand side o
the cage b, shewn at Figure 2, cast in one piece with the butt or stock
g, hammer revolving at h; i, slotted lump on the hammer; j, paw
moving the drum and revolving at x on the hammer g; k, trigge
oscillating at 1; m, plate shewn at (Figure 6) having a mortise n int
which works the tenon o of the trigger; p, spring acting on the pla
and trigger; q, hammer or percussion spring; ", oscillating do

page_text: forming the left-hand side of the back of the drum cago; 8, axle of
the door having a cam or lump which serves to lift the hammer g.
To place the arm at half cock it is simply necessary to pull first the
hammer by hand and then pull the trigger. By this means the end of
the platom passes over the lump i of the hammer, so that should
pressure be applied on the trigger the plate not being able to act on the
hammer nor on the pawl no accident is to be feared. To place the arm
at full cock pull the hammer without pressing on the trigger. In
this way tho plate passes under the lump i by means of the spring p.

page_text: m cage; s, axlo of
lift the hammer g.
ary to pull first the
is means the end of
mer, so that should
g able to act on the
. To place the arm
on the trigger. In
s of the spring p.