Improvements in Triggers for Double Barrel Drop-down Small Arms.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Triggers for Double Barrel Drop-down Small Arms.
1, JOHN SIDNEY HEATH, Gun Maker, 135, High Street, Aston, Birmingham,
do hereby declare the nature of this invention to be as follows:-
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I employ two (2) triggers both with fingers of right-hand or upright shape;
one of them having a blade of the usual kind, and the other one the fly-trigger
shape, with a slit lengthened towards the box of trigger-plate. In front of
this box I fit a dog to each trigger-blade. When the gun is ready for firing
the ordinary trigger is in the usual position for that purpose, whilst the fly-trigger
is lying close to the front of bow of trigger-guard.
When the first trigger is pulled it acts on the dog of the fly-trigger releasing
the latter which moved by a spring, then brings its finger into line with the
place lately held by the first trigger and is ready for firing. The ordinary
trigger is held down in the place to which it was pulled, by its own dog. When
the gun is opened the bolt that, holds the barrels down in the action operates
upon the dog of the ordinary trigger and releases the latter, the bolt at the same
time presses the fly-trigger forwards till it is caught and held by its dog, out
of the way of the other trigger.
I propose, if necessary, to use either the lever, spring or spindle attached to
the bolt to operate upon the triggers and dogs for the purposes above mentioned.
Date this 20th day of M 1900
Improvements in Triggers for Double Barrel Drop-down Small Arms.
JOHN SIDNEY HEATH, 135, High Street, Aston, Birmingham, Gun Maker, 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:―
The object of this invention is to do away with the necessity of moving the
hand in firing the second or left hand barrel of the gun after the first barrel
is fired.
This I do by arranging for the second trigger to be held forward by a suitable
dog or sear until the first trigger is operated on; when it flies backward on a
line with the firing position of the first trigger & the first trigger is held back
by a suitable dog or sear to make room for the second trigger to come in position
for firing, after which both triggers are brought to their normal position again

page_text: by the action of the bolt on the dog or sear F & the top part of the blade of the
fly trigger at P as the gun is being opened for revolving.
In the accompanying drawings Fig. 1 shews the trigger for the right hand
barrel ready for firing. Fig. 2 shews the trigger for the right hand barrel fired
& fixed in its backward position & the trigger for the left hand barrel in the
correct position for firing. Fig. 3 is a side elevation & plan of the dog or seer G
& Fig. 4 is a side elevation & plan of the dog or sear F.
The two triggers A & B both work on the pin C one of them having a blade I)
of the usual kind and the other one E of the fly trigger shape, the slot being
lengthened to allow the trigger to work the extra distance. In front of the box,
I fit 2 dogs or sears F & G to operate on each trigger blade, by means of suitable
springs so as to hold the triggers in the required positions.
When the gun is ready for firing the ordinary trigger A is in the usual position
for that purpose, while the fly trigger B is lying close to the front of the trigger
guard see Fig. 1.
When the first trigger A is pulled it acts on the dog or sear G of the fly trigger
releasing the said fly trigger B to the position for firing see Fig. 2.
This is carried out as follows viz.
Projecting from the front of the trigger blade I) is a pin or peg H which extends
sideways sufficiently to work the dog or sear G as the ordinary trigger is being
worked, & so releases the fly trigger & brings it into the position for firing the
second barrel.
Thus it will be perceived that the object of this invention is to obviate the
necessity for moving the hand in operating the second or left hand barrel
trigger, and that it is carried out as follows viz.
The blade D of the right hand trigger A is extended forwards & pointed at I
to fit in the pivoted dog or sear F the said dog or sear being notched at N to
receive the point for keeping the trigger in the backward position after firing.
The fly trigger B is kept in its normal position by means of a notch J near
the top of its extension or blade, fitting on the dog or sear G, and the dog or
sear G is released from the said notch by means of a pin H projecting sideways
from the front part of the blade 1) of the first trigger as it is being pulled for
firing, both triggers being brought to their normal positions again by means of
the bolt coming into contact with the dog or sear F and the top part of the blade
of the fly trigger at P, as the gun is being opened for recharging. That is after
the gun has been fired the triggers remain in position as shewn in Fig. 2, and
it is necessary before firing again to bring the said triggers into position as shewn
at Fig. 1, which is automatically accomplished by the backward action of the
bolt coming into contact with the dog or sear F and the top part of the blade of
the fly trigger at P in reloading, the said bolt being indicated at Fig. 1 by
strong lines when in its normal position & by dotted lines when shot out by
the action of opening the gun for reloading.
Having now particularly described & ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. The dogs or sears in combination with suitable mechanism operated on by
the triggers as substantially set forth & for the purpose specified.
2. The combination of parts as substantially set forth in this specification &
illustrated by the accompanying drawings.
Dated this 221 daw of T1000