AN INTERCEPTING BLOCK SAFETY FOR GUN LOCKS
Year: 1884

page_text: We, EDGAR HARRISON 142 New Bond Str Westminster, Gunmaker FREDERICK ⚫
BEESLEY, 85 Edgware Road County of Middlesex, Gunmaker do hereby declare
the nature of our invention for AN INTERCEPTING BLOCK SAFETY FOR GUN LOCKS
to be as follows:-
A novel mode for ensuring guns from accidental discharge in any way except by
the act of pulling the trigger: this we accomplish by a lever affixed to the trigger
plate in such a manner that the front end of it shall intercept or block the action of
some portion of the mechanism of the lock, while the rear end may be actuated by
the trigger.
The mode of construction is this, we make the box on the trigger plate wider
than usual to permit of a slot being cut along its side, in which slot is fitted a lever
capable of being oscillated on a pivot crossing the slot in a vertical direction: on
the rearward and shorter arm of the lever is a projection passing through a hole in
the blade of the trigger at an angle inclined to the plane of the triggers motion
the front and longer arm of the lever extends forwards to about the line of the head
of gunstock, where it projects at right angles outwards from the trigger plate so as
to intercept the action either of the mainspring or of the tumbler of the lock as
may be desired, when the lock is at full cock, the lever being kept in that position
by the action of a spring lying beneath it in the slot. The action will be thus: on
the finger part of the trigger being pulled in the usual way the short arm of the
lever will be moved outwards, and the long arm withdrawn, inwards from beneath
the lock mechanism, leaving the lock free to act in its usual manner: on the
tumbler being again lifted to full cock the lever actuated by the spring will move
outwards and intercept the action of the mainspring or tumbler as before. Where
a mainspring is not linked to the tumbler, we make it engage with it, to prevent
its motion, when the spring is blocked.

page_text: We EDGAR HARRISON residing at 142 Now Bond Street London W. Gunmaker,
and FREDERICK BEESLEY, residing at 85 Edgware Road London W. Gunmaker do
hereby declare the nature of our invention for AN INTERCEPTING BLOCK SAFETY
FOR ĞUN LOCKS and in what manner the same is to be performed, to be particularly
-described-and-ascertained in and by the following statement:-
Our invention refers to a novel mode-for-ensuring guns from accidental discharge
in any way except by the act of pulling the trigger, this we accomplish by a lover
affixed to the trigger plate in such a manner that the front end of it shall intercept
or block the action of some portion of the mechanism of the lock, while the rear
-end-may be actuated by the trigger. The mode of construction is this, we make
the box on the trigger plate wider than usual to permit of a slot being cut along its
side in which slot is fitted a lever.capable of being oscillated on a pivot crossing the
slot in a vertical direction, on the rearward and shorter arm of the lever is.
a projection passing through-a-hole in the blade of the trigger at an angle, inclined
to the plane of the triggers motion: the front and longer arm of the lever-extends-
forwards to about the line of the head of the gunstock, where it projects at right
angles outwards from the trigger plate so as to intercept the action either of the
mainspring or the tumbler of the lock as may be desired when the lock is at full
cock; the lever being kept in that position by the action of a light spring lying
beneath it in the slot; the action will be thus:-if the trigger 2 bo drawn back in
the usual manner its action on the inclined angle 7 of the lever 5 will cause it to
oscillato on the pivot 8 and force outwards the short arm 5¹ of the lever while
withdrawing inwards the long arm 511 which is shown in the drawing as being in
a position to intercept some portion of the mechanism of the lock, in its action when
striking the blow to discharge the gun; and being withdrawn in the manner stated
permits such blow to be delivered; on the lock being again raised to the position
of full cock the lever actuated by the spring 9 will move outwards its long arm 511
to intercept the action of the tumbler or mainspring as before and so prevent the
accidental discharge of the gun.
In the accompanying drawings Fig A is a side view of a trigger plate, and
triggers hung as is usual, with the invention attached to one trigger only. Fig: B
is a plan of the same. Fig C is a side view of the trigger only, showing hole
through which the arrangement is actuated. Figs: D. & E. are respectively side
and plan views of the blocking lever itself; the numbers in each drawing are the
same 1 is the trigger plate, 2 the trigger, 3 the wide trigger box, 4 its narrow top
projection of the usual width, 5 the blocking lever, 6 hole in trigger with inclined
angle 7 angle on lever, 8 pivot pin, 9 spring and screw.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed we declare that what
we claim is
The combination of a wide trigger box with a slot along its side, to contain a
lever pivoted to such trigger box, such lever being actuated by the inclined angle

page_text: on the trigger, as well as its spring, in the manner shewn, as, and for the purpose,
as substantially set forth and illustrated.
As witness whereof we have hereto set our hands this twentyfourth day of
April, One thousand eight hundred and eighty five.