Improvements in Magazine Air Guns.
Year: 1895

page_text: Date of Application, 20th Apr., 1895-Accepted, 15th June, 1895
COMPLETE SPECIFICATION.
Improvements in Magazine Air Guns.
I, THEODOR HORNHAUER of Schmiedegasse, Dresden, Germany, 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 object to provide an air gun which as distinguished
from others hitherto known is, by reason of its extreme simplicity and the very
sparing employment of springs therein.considerably more durable and more reliable
in action.
In the drawing Figs. 1, 2, 3, are part sectional side elevations of the air gun of
this invention. Figs. 4 to 13 are views of details.
a is the gun barrel, 6 the firing bore of the same, e a bore underneath and
parallel with the firing bore and serving as a shot or bullet magazine, & being
bullets shewn spherical but which may also be of a cylindrical shape.
The barrel a having in one piece with it the luge is mounted to turn on a pin e¹ and
between the two sides of an extension/from the air chamber and casing g. is a slide
for raising the bullets from the magazine e to the firing bore b. This and therefore the
loading is accomplished in bringing the gun from the drop down position of Figs. 3, 4, 5,
to the straight position of Figs. 1, 2, 6, the bottom end of the slide then taking against
the bottom of the extension and in its upward movement bringing up to the firing
bore 6 the bullet which in the drop down position has taken its place upon the top
of the slide. The bullet having been raised from the magazine and fired from the
gun and it being desired to load again the slide is drawn down in dropping down
the stock to the position of Fig. 3. In this operation the shoe or hook k formed
on the bottom end of the slide h which shoe in the straight position of the gun
comes underneath a stud or pin l, is upon dropping down the barrel a held down by
said stud until and by a suitable handling of the gun the passage of a fresh
bullet on to the upper end of the slide is rendered practicable (Figs. 3, 5). In
order that the slide may not be withdrawn altogether from the barrel it is made
with a recess m which is engaged by a fixed stud n so as to limit the stroke of the
slide (Figs. 1, 3). The upper end of the slide is preferably recessed and in this
recess is placed a leather support or stopper o (Figs. 3, 5) which without causing
much resistance holds the bullet firmly in the firing bore b, thus on the one hand
preventing the bullet from jerking forward in the firing bore of itself and on the
other hand shutting off more tightly the air in the chamber g previous to firing
the gun.
The magazine c is charged from the front end which is furnished with a screw
stopper p for stopping up the bore after charging. (Fig. 1.)
7 is a spring bolt chamfered at one end for securely holding the gun in the closed-
up position said bolt being held and guided upon the top of the casing g which for
this purpose is provided with a projecting part dove tail in cross section
(Figs. 8, 9, 10) said bolt being normally pressed against by a spring s partly
inserted in and bearing against the end of the projecting part r so that upon closing
up the gun the spring is pressed back but so as to leave the chamfered end of the
bolt engaged upon the back end of the barrel a. (Figs. 1, 2.) t is the sight firmly
attached to the bolt q so that when the sight is pressed back by the thumb it takes

page_text: the bolt with it so as to leave the barrel tree for dropping down.
for bolt q..
is a stop pin
The chamfered edge of the bolt g may be so held that it is not necessary to
draw back the bolt for the purpose of dropping down the barrel, this being also
practicable by the application of a bending force to the two main parts by which
the bolt can be forced back.
The cocking of the gun is effected in opening up the same by means of the push
rod u which is mounted to slide with the pivot v between the two side guides w in
grooves of the same. In commencing to open up the gun said push rod u engages
by a tooth y in the slot z of the hollow piston which in the further opening up of
the gun is carried backwards by the tooth'y.
2
g...
1.is, a pawl (shewn separately in Fig. 13) for holding fixed the piston after the
gun has been cocked the, piston in taking up, its end, position pressing,back a
stud 2. carried loose in the end cover 3 of the casing said stud in its, turn
pressing back the pawl 1 through its lug 4 so that the locking tooth 5 is entered
into the hole 6 of the hollow piston. At the same time as this occurs and the back
end of pawl 1 is moved down a hook 7 formed on the trigger 8 takes over an
extension 9 formed upon the back end of pawl 1 which thus secures the piston in 'the
arrested position which is shewn in Fig. 1 only that here the push rodu is drawn
back and the gun set for firing. The spring 10 acting upon the trigger 8 is partly
led into a recess in the extension 9 of pawl 11 and bears: by its other end upon an
arm 12 of the trigger.
In order to fire off the gun the trigger 8 is so actuated that its hook 7 releases
the pawl whereupon this with the locking tooth 5 is with the aid of spring 10
disengaged from the piston 2 which is then sprung forwards by the driving
spring 13 (Fig. 2).
The pawl 1 is mounted between the two parts of an extension 14 of the guides w
so as to turn on the pin 15 and the trigger 8 between plates 16 fixed to the curved
part, 17 which in conjunction with the screw 18 serves as a handle, the trigger
turning on pin 19. and moving with play in the recess 20 of pawl 1.
The hollow piston 2 is internally large enough to receive, when the gun'is'in the
cocked position, nearly the whole of the driving spring 13 and its carrying
spindle 21.
+
22 is a leather packing piece attached to the end of the piston so as to be
airtight.
The air compressed by the piston and packing piece 22 in the front part of
the casing g passes out through the bore 23 made in the end 24 to the firing
barrel b.
'
25 is a leather ring (Figs. 1,3, 8, 10) let into the end 24 on the barrel side for
the purpose of effecting a tight closure between the barrel and the end of the
casing so that air in the casing can only pass out into the firing barrel.
Having now particularly described and ascertained the nature of my said inven-
tion, and in, what manner, the same, is to be performed, Lideclare, that what I
claim is:-
1. In a magazine air-gun the arrangement of a slide' provided with a shoe or
book k by which in conjunction with a catch stud or pin the slide his, in dropping
down the gun, so drawn down (Figs. 3, 4, 5) that a bullet d may pass from 'the
magazine on to the slide h, in order that, upon the closing up of 'the gun and
striking of the slide shoek against 'the bottom or against a stop, it may be raised
to the firing barrel or boreb, substantially as described and shewn.
2. In a magazine air gun the arrangement of a non metallic stopper or plugo
let into the bullet lifter h (Figs. 3, 5) which without itself causing much resistance
or friction serves on 'the one hand to prevent any undesired displacement of the
bullet lifted up to the firing bore b. and on the other hand to more thoroughly
compress the air in the casing a previous to discharging the bullet 'from the gun,
substantially as described and shewn.
g

page_text: 3. In a magazine air gun the arrangement of a spring bolt a carried and guided
upon the projecting part on the top of the casing 9 and having its movement
limited by a stop pin (Figs. 1, 8, 10) for the purpose specified, substantially as
described and shewn.
4. In a magazine air gun the arrangement of a non metallic packing plate or
ring 25 between the barrel a and the casing end 24 (Figs. 1, 3, 10) substantially as
described and shewn.
5. In a magazine air gun the arrangement of a pawl 1 having a lug 4 and an
extension 9 said pawl being caused by the piston 2' when this is pressed back and
in conjunction with the loose stud 2 without the use of a spring to engage by its
tooth 5 in a hole 6 of the piston and for the purpose of holding the piston fixed is
secured in this position by the hook 7 of the trigger 8 engaging upon the
extension 9 (Figs. 1, 3) by the action of which trigger to release said extension the
gun is discharged (Fig. 2) substantially as described and shewn.
6. In a magazine air gun the arrangement for setting back the piston 2¹ of a
push rod u pin jointed to the barrel a and with pivot v guided in parts w to take by
a tooth y in the slot z of the piston z in order to move back this latter when the
gun is dropped down (Fig. 3) substantially as described and shewn.
Dated this 20th day of April 1895.
THOMAS R. SHILLITO,
89, Chancery Lane, London, W.C., Agent for Applicant.