Improvements in Drop-down Guns."
Year: 1897

page_text: Date of Application, 4th Feb., 1897
Complete Specification Left, 3rd Nov., 1897-Accepted, 4th Dec., 1897
**
Improvements in Drop-down Guns."
WC, JOHN ROBERTSON, trading as Boss & Co., of 73 St. James Street, Pall Mall,
in the County of Middlesex, Gunmaker, and WILLIAM ADAMS, of 4 Havelock
Terrace, Battersea, in the County of Surrey, Gunmaker, do hereby declare the
nature of this invention to be as follows:-
The present invention relates to improved mechanism to be used in addition
to the ordinary starting and ojecting mechanism, by means of which when the
gun is opened for any reason before it has been discharged the undischarged
cartridge or cartridges will be moved back to the full extent, but not ejected, so
that same can readily be removed by hand, while when the gun is opened after the,
discharge of either one or both Barrels, the discharged cartridge or cartridges
will be ejected by the ordinary ejecting mechanism in the usual manner.
For this purpose we employ a sear pivotted to the fore end of the gun and working
in conjunction with two stops on the slide of the starting and ejecting mechanism.
When the gun is closed but not discharged the front end of the sear is opposite the
space between the two stops on the fore end, and as the gun is turned down the
ejector spring forces the slide gradually forward to its full extent so that the undis-
charged cartridge or cartridges can be easily removed. When the gun has been
discharged however the action of opening same causes the forward end of the
cocking lever to first bear on the rear end of the sear, thus depressing its forward
end and bringing same opposite the bottom stop on the slide. The further move-
ment of opening the gun causes the cocking lever to then bear on the forward end.
of the sear thus raising same out of engagement with the bottom stop and opposite...
the space between the two stops, so that the ejector spring is then free to move
the slide and eject the discharged cartridge in the usual manner.
If the fore end is removed at any time a small spring acting upon the sear.
causes it to engage the top stop so that the ejector spring will not shoot the slido
forward, and it will consequently not be necessary to force same back against the
action of its spring before being able to replace the fore end. The action of
replacing the fore end by means of a pin bearing on the underside of the barrels
brings the scar opposite the space between the two stops in the position ready to.
operate in the manner above described as soon as the gun is opened.
1
1
1
1005

page_text: We, JOIN ROBERTSON, trading as Boss & Co., of 73 St. James Street, Pall Mall,
in the County of Middlesex, Gunmaker, and WILLIAM ADAMS, of 4 Havelock
Terrace, Battersea, in the County of Surrey, Gunmaker, 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 present invention relates to improved mechanism to be used in addition
to the ordinary starting and ejecting mechanism, by means of which when the
gun is opened for any reason before it has been discharged the undischarged
cartridge or cartridges will be moved back to the full extent, but not ejected, so
that saine can readily be removed by hand, while when the gun is opened after the
discharge of either one or both barrels, the discharged cartridge or cartridges
will be ejected by the ordinary ejecting mechanism in the usual manner.
But in order that our invention may be fully understood we will proceed to
describe same by the aid of the accompanying sheet of drawings, which illustrate
the invention as applied to a double-barrelled gun, and in which
Fig. 1 is a longitudinal section of a gun fitted with our invention,
Fig. 2 a plan view (partly in section) of the under side thereof,
Fig. 3 a longitudinal section of the gun when partially opened showing the parts
in the position they occupy after the barrel has been discharged, but before the
ejecting mechanism has come into operation.
Fig. 4 is a longitudinal section of the gun, showing the parts in the position.
they occupy when the gun is fully opened either without the barrel having been
discharged, or after ejection of the spent cartridge.
Fig. 5 is a side elevation of the starting or extracting and the ejecting
mechanism with our invention applied thereto,
Fig. 6 a side elevation, Fig. 7 an end view, and Fig. 8 a plan view of the under-
side of the sear we employ in carrying out our invention.
In carrying out our invention we employ a sear A pivotted to the fore and B of
the gun and working in conjunction with two stops c. c¹, on the
slide C of the starting and ejecting mechanism. When the gun is
closed but not discharged the front end of the sear A is opposite
the space between the two stops c, c, on the slide C, and as the gun is
turned down the ojector spring D forces the slide C gradually forward to its full
extent (as shown in Fig. 4) so that the undischarged cartridge or cartridges cau
be easily removed. When the gun has been discharged however the action of
opening same causes the forward end of the cocking lever E to first bear on the
rear end of the sear A, thus depressing its forward end and bringing same oppo-
site the bottom stop on the slide C. The further movement of opening the gun
causes the cocking lever E to then bear on the forward end of the sear A thus
raising same out of engagement with the bottom stop and opposite the space
between the two stops c, el, so that the ejector spring D is then free to suddenly
move the slide C forward and eject the discharged cartridge in the usual manner.
If the fore end B is removed at any time a small spring a acting upon the sear A
causes it to engage the top stop c of the slide C so that the ejector spring D will
not shoot the slide C forward, and it will consequently not be necessary to force
same back against the action of its spring D before being able to replace the form
end B. The action of replacing the fore end brings the sear into the position
ready to operate in the manner above described as soon as the gun is again opened.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:-
1. The combination with the ordinary starting or extracting and ejector
mechanism of drop-down guns, of a pivotted sear carried by the fore end of such
gun and acted upon by the cocking lever thereof, such scar working in conjunc-
tion with two stops arranged on the slide of the starting and ejecting mechanism,
substantially as and for the purpose specified.
2. The combination with the arrangement described in the preceding claim of
spring acting on the sear so as to throw saine into engagement with one of the
stops on the slide of the starting and ejecting mechanism when the fore end of the
gun is removed, substantially as and for the purpose specified.
Dated this 3rd day of November 1897.
ALLISON BROS
Agents for the Applicant.