Improvements in Breech Loading Small Arms.
Year: 1895

page_text: Date of Application, 25th Feb., 1895
Complete Specification Left, 27th Dec., 1895-Accepted, 22nd Feb., 1896
PROVISIONAL SPECIFICATION.
Improvements in Breech Loading Small Arms.
EDGAR HARRISON, of 294 Gillingham Street London S.W. Gun Maker do
hereby declare the nature of this invention to be as follows:-
In double barrel firearms there are usually two triggers, corresponding to the
two locks and barrels. My invention consists in means whereby one trigger is
dispensed with, the remaining trigger actuating either lock.
To an ordinary shaped trigger I fulcrum at the rear end an elevating lever, the
upper end of which may be in two positions; first, under the right sear; second,
under the left sear. In firing the gun the trigger is pulled, and in its upward
travel the lower front end of the elevating lever comes against a stop which has
the effect of turning the lever about its centre until it comes against another stop
which may be the left sear; when the trigger returns to its normal position of rest,
the elevating lever turns still further about its centre until its upper end is in the
second position.
In pulling the trigger to fire the left barrel, the lower rear end of the elevating
lever comes against a second stop, and performs the same function as before
described, but in an opposite direction.
On opening the gun to reload, the ordinary trigger safety comes against the
upper part of the elevating lever and places it in the first position.
The elevating lever has a V upon which presses a flat spring, so that as soon
as the lever is turned a little by either of the stops, the pressure of the spring on the
V being on the reverse side urges the lever forward and holds it in that position.
The lower part of the elevating lever engages with the safety hooks which
secure the sears or tumblers for the prevention of accidental discharge, the right
hook in the first position, the left in the second position.
The elevating lever may be moved by hand from one position to the other by a
rod, lever, or spring situated on the outside of the gun.
The elevating lever may be made in two parts and jointed on the same centre,
a spring being employed to actuate the upper part of the said elevating lever after
the trigger has returned to its normal position.
Dated this 25th day of February 1895.
EDGAR HARRISON of 29 Gillingham Street London S.W. Gun Maker, do
5 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 double barrel fire arms there are usually two triggers corresponding to the
two locks and barrels. My invention consists in means whereby one trigger is
0 dispensed with, the remaining trigger actuating either lock,

page_text: Fig. 8. Slide plan view.
Fig. 9. Ditto side elevation.
Fig. 10. Ditto end view.
To an ordinary shaped trigger A I fulcrum at the rear end an elevating lever B
the upper end of which may be in two positions, first the end B' under the right
scar Csecond the end B under the left sear C. In firing the gun the trigger A
is pulled and in its upward travel the lower front end B₁ of the elevating lever B
comes against a stop D', which, has the effect of turning the lever B about its
centre until it comes against another stop, which may be the left sear C' when the
trigger returns to its normal position of rest, the elevating lever turns still
further about its centre until its upper end B is in the second position.
In pulling the trigger to fire the left barrel, the lower rear end B2 of the
elevating lever comes against a second stop D² and performs the same function as
before described but in an opposite direction.
On opening the gun to reload the ordinary trigger safety slide comes against
the upper part of the elevating lever and places it in the first position.
The elevating lever has a V-B³ upon which presses a spring so that as soon as
the lever is turned a little by either of the stops the pressure of the spring on
the V being on the reverse side urges the lever forward and holds it in that
position.
The elevating lever may be moved by hand from one position to the other by
a rod in slide G D in part of which G is situated on the outside of the gun.
The elevating lever may be made in two parts and jointed on the same centre,
a spring being employed to actuate the upper part of the said elevating lever after
the trigger has returned to its normal position.
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
1. In double barrel firearms having but one trigger the combination and
arrangement of parts.
Trigger A. Elevating lever B rod or slide D with the sears C, Csubstantially
as shown.
2. The elevating lever B, rod D with stops D¹, D².
3. The elevating lever being returned always to its original position on the
opening of the gun.
27th December 1895.
EDGAR HARRISON.