Improvements in Breech-loading Small-arms.
Year: 1890

page_text: :
Date of Application, 5:h Feb., 1890
Complete Specification Left, 25th Sept., 1890-Accepted, 20th Dec., 1890
PROVISIONAL SPECIFICATION.
Improvements in Breech-loading Small-arms.
I, JOHN Ross of 26 Stewart's Road Battersea Park Road, in the County of
Surrey, Gun Smith, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object an improved arrangement of ejecting mechanism
to enable hammerless guns to be more easily worked.
In most cases the ejecting mechanism is worked by a spring; which is put into
compression by the act of closing the gun and is released by the act of opening the
gun and causes the ejecting mechanism to thrust out the spent cartridge; the act of
closing the gun is thus rendered more. difficult by the act of compressing the abcve
mentioned spring. In my improvement this action is reversed the opening of the
gun causes the compression of the spring and the closing of the gun is assisted by
the expansion of the spring itself. When the spring is thus compressed it presses
upon the ejecting mechanism which at a prearranged moment is released by drawing
back a certain stop and so thrusts out the spent cartridge.
My further improvements in ejecting mechanism consist in making the limb with
hook (technically, scear) that holds back the ejector hammers a combined scear and
spring and apply it to work with a direct opposite motion to that of the hammers.
Dated this Fifth day of February 1890
JOHN P. O'DONNELL,
Agent for the said Applicant.
COMPLETE SPECIFICATION.
Improvements in Breech-loading Small-arms.
I, JOHN Ross, of 26 Stewart Road, Battersea Park Road, in the County of Surrey,
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 :-
This invention has for its object an improved arrangement of ejecting mechanism
to enable hammerless guns to be more easily worked..
"
In most cases the ejecting mechanism is worked by a spring; which is put into
compression by the act of closing the gun and is released by the act of opening the
gun and causes the ejector mechanism to thrust out the spent cartridge: the act of
closing the gun is thus rendered more difficult by the act of compressing the above
mentioned spring. In my improvement this action is reversed the opening of the
gun causes the compression of the spring and the closing of the gun is assisted by
the expansion of the spring itself. When the spring is thus compressed it presses
upon the ejecting mechanism which at a pre-arranged moment is released by drawing
back a certain stop and so thrusts out the spent cartridge.
My further improvements in ejecting mechanism consist in making the limb with
hook (technically sear) that holds back the ejector hammers move in a horizontal
plane under the action of a spring.
My invention is applicable to single and double drop down small arms.
I will now describe with reference to the accompanying drawings the manner in
which my invention is to be performed.
Figure 1 represents a longitudinal section of the gun ;
Figure 2 a plan of the under side;

page_text: 1.
Figures 4 to 34 different views of the details.
Similar numbers refer to similar parts throughout the different views. 1' is the
ejector rod, 2 is the ejector hammer carried upon a pin 3 on the fore part; 4 is the
ejector spring, 5 is a sliding plate; in the action, 6 is the hammer, 7 is the ejector
hammer sear block. It will be seen that when the gun is closed as in Figure 1 the
spring 4 is open but during the opening of the gun the spring 4 is compressed thus
the force required to compress the two springs 4, 4, on the opening of the gun
balances the force needed to compress the main hammer springs in the closing of
the gun causing the actions of opening and closing to be equally easy. These
remarks refer to guns in which the hammer main springs are compressed during the
closing of the gun, but this method is equally applicable in cases where the hammer
main springs are compressed during the opening of the gun; the ejector springs in
this case assisting the closing of the gun. Tho action is as follows.
Figure 1 shows
the gun directly after firing. The hammer 6 is pivoted at 12, and carries a pin 11,
this pin acts on the slant 13, of the sliding plate 5 (Figures 7 and 8) and forces it
forward so far that the beveled end 14 projects from the action of the gun. At the
end of the action a small roller 15 is fixed. If the gun be now opened the roller 10
passes over 15 and as the lever 9 (Figures 13 and 14) is pivoted at 17, the end 18
comes against the slant 19 on the extractor rod and forces it out a short distance; as
the gun continues to open the slant 20 on the sear block 7 (see Figures 22, 23, 24)
strikes against the end 14 (see Figures 7 and 8) of the sliding plate 5 belonging to
the barrel which has been fired, the sear block 7 turns on the pin 8 (which is
almost directly opposite the ejector hammer thereby giving a solid surface to work
upon) and its end 21 (see Figures 22, 23, 24) is drawn back clear of the ejector
hammer 2 (Figures 20 and 21) and allows it to fly forward and strike the end of
the rod 1, Figure 1, and. eject the cartridge; while this has been happening the
part 22 known as the double dog (Figures 4, 5, and 6) has been lifted so that the
points 23 have cocked the hammers 6 by striking the points 24 (Figures 11 and 12)
and at the same time the slant 25 has acted upon the slant 26 of the sliding plate
Figure 7 and so forced it back, into the position shown in Figure 3. On closing
the gun the hammer remains cocked; the double dog 22, Figure 6 returns to its
position shown.in Figure 1, and the ejector hammer is again set by the actions of the
ejector rod 1.
gun
Figures 17, 25, 26, represent a forepart made with my special sear blocks
(Figures 22, 23, 24) but in which the ejector spring 4 is compressed in closing the
in the usual manner, the horizontal sears are the same as before mentioned.
Figures 18 and 19 represent a stirrup for holding the ejector spring 4 (Figures 15
and 16) where a groove 28 is used for holding the tail of the spring. Figure 27
shows an application of the same principle to a lock
gun, here the hammer
(Figures 33 and 34) is provided with two pins 28 which act upon the wedge
shaped tail 30 of the sliding plate (Figures 28 and 29). Figures 30, 31, 32,
represent a carriage carrying the ejector hammers and horizontal sear blocks and
could be fitted to a gun separately, here the main spring 4 has a projection 31, which
enters into a slot and so holds it in position, the sear blocks are held in position by
flat springs 32.
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 drop down small arms fitted with extractor mechanism by which the cartridge
cases of exploded cartridges only are ejected the use of an ejector spring shown in
Figures 1, 2, 3, 9, 10 and 27, which is put into compression by the opening of the
gun and by its expansion assists the closing of the gun.
2. In drop down small arms the use of horizontal sear blocks as shown in
Figures 22, 23, 24, in which the sear block is so pivoted that one end acts as a stop
for the ejector hammer while the other is moved on opening the gun by the end of a
sliding plate Figures 7 and 8.

page_text: 3. In drop down small arms the construction of a sliding plate Figures 7 and 8,
so formed that a pin on the hammer gives it a forward motion and a slant on the
double dog Figures 4, 5, 6, gives it a backward motion.
4. In drop down small arms the construction of a hammer with one projecting pin
Figures 11 and 12, for the purpose of giving a forward motion to the sliding plate
Figures 7 and 8.
5. In drop down small arms the construction of a slant 25 on the double dog
(Figures 4, 5 and 6) for the purpose of giving a backward motion to the sliding plate
Figures 7 and 8.
.
6. In drop down small arins the construction of a hammer Figures 33 and 34,
with two pins for the purpose of moving a sliding plate Figures 28 and 29.
7. In drop down small arms the construction of a sliding plate Figures 28 and 29
with a wedge-shaped end suitable to be acted upon by the hammer Figures 33 and 34.
8. In drop down small arms the construction of an ejector spring with a
projection as shown in Figures 30, 31 and 32, for holding the spring in position.
9. In drop down small arms the construction of a slot as shown in Figures 30, 31
and 32, into which a projection on the ejector spring enters.
10. In drop down small arms the construction of the projection from the action
carrying the small roller 15 for the purpose of acting upon the roller 10 on the limb
Figures 13 and 14.
11. In drop down small arms the construction of the three ended limb Figures 13
and 14, in which the end 18 is used to thrust the ejector rod forward and the roller 10
passes over the roller 15 causing this movement and then interlocks with the roller 10
thus holding the gun open for the insertion of the cartridge, the end 33 being so
formed as to take a link which link holds the end of the ejector main spring.
Dated this 25th day of Santambar 1800
JOHN P. O'DONNELL,
2, Great George Street, Westminster, London, S. W.,
Agent for the said Applicant.