IMPROVEMENTS IN SPRING AIR-GUNS
Year: 1884

page_text: COMPLETE SPECIFICATION.
I, HENRY MARCUS QUACKENBUSH, of Herkimer, in the County of Herkimer
and State of New York, one of the United States of North America, Gun
Manufacturer, do hereby declare the nature of my Invention for IMPROVEMENTS
IN SPRING AIR-GUNS, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
This Invention consists in improved means for obtaining the requisite air
pressure for propelling from the barrel of the gun the projectile or missile, all as
hereinafter more fully described and specifically set forth in the claims.
The Invention is fully illustrated in the annexed Drawing wherein Fig. 1 is a
side view of my improved spring air-gun, Fig. 2 is a top plan view of the same and
Fig. 3 is a longitudinal section of the same with the parts in position for propelling
the missile.
Similar letters of reference indicate corresponding parts.
A represents the stock of the gun and B the barrel secured thereto by a bolt D,
as shown in the Fig 1 and 3 of the Drawing.
C represents a cylinder adapted to slide over the rear end of the barrel and fitted
air-tight thereto, the rear end of the cylinder being closed and provided on its
inner face with a cushion u of leather or other suitable material, to receive the
concussion incident to the collision of the same with the end of the barrel, as
hereinafter explained.
To the rear end of the cylinder I connect a handle b which is formed in one
piece, with two hooks c, c.
The forward end of the stock A is provided with two or more notches n on the
side adjacent to the barrel and in one of said notches is detachably secured a duplex
hook h which passes under the barrel and rises on opposite sides thereof.
On the hooks h and c, at opposite sides of the barrel are attached elastic bands a
which serve as springs for propelling the cylinder C.
I do not however limit myself to the use of elastic bands as it is obvious that
metal springs may be employed for the same purpose and such springs may be
located either at the top, bottom or side of the barrel.
In loading the gun the cylinder is withdrawn from the end of the barrel and the
missile introduced in the bore, which is extended through the rear end of the
barrel. When the cylinder is partially withdrawn as aforesaid the forward end
thereof encounters a hook e on the end of a latch pivoted to the stock A, as
illustrated in Fig. 3 of the Drawing, said hook being held in engagement with the
end of the cylinder c by means of the trigger t which has two shoulders r and r¹.
...

page_text: A spring S interposed between the shoulder 7 and latch normally carries the
latch into engagement with the cylinder as aforesaid and the shoulder r of the
trigger engages the end of the latch Z and retains the same in its aforesaid
engagement.
.
By pulling on the trigger the latch becomes released from the shoulder and
thus allows the cylinder to be impelled toward the end of the barrel by means of
the springs or elastic bands a, a.
In the approach of the cylinder toward the barrel the air contained in the
cylinder is compressed and caused to exert its force on the missile introduced in
the barrel and thereby projects said missile from the barrel.
.
The force of the cylinder can be adjusted by shifting the hooks h from one
notch to another notch so as to produce greater or less tension on the clastic
bands.
It will thus be observed that by my improvement I obtain a most efficient,
simple and comparatively inexpensive spring air-gun.
Having now particularly described and 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. In a spring air-gun the combination of a stationary piston and movable
cylinder for compressing the air, and a spring or springs for impelling the cylinder
substantially as set forth.
2. In a spring air-gun the combination with the barrel having its bore extended
through the rear end thereof, of a cylinder sliding telescopically on said portion of
the barrel, and having its rear end closed, a spring or springs drawing the cylinder
toward the barrel, and a latch holding the cylinder retracted from the barrel,
substantially as set forth and shown.
3. In combination with the barrel and air compressing cylinder sliding over the
end of the barrel; elastic bands connected to the aforesaid parts for impelling the
cylinder substantially as described and shown.
4. In combination with the barrel B, sliding cylinder C, elastic bands a, and
hooks h, the stock A, provided with two or more notches n for the attachment of
said hooks, substantially as described and shown.
5. In combination with the barrel B, sliding cylinder C, and elastic bands a a,
the handle b, attached to the cylinder and formed in one piece, with the hooks c c,
substantially as described and shown.
6. In combination with the barrel B, a spring actuated cylinder C, latch
provided with a hook e, the trigger t provided with shoulders and ¹ and a
spring S, interposed between the shoulder 7ª¹ and latch 7 substantially as shown and
described.
7. In combination with the barrel B, a spring actuated cylinder C, sliding
telescopically on the end of the barrel, the cushion applied to the inner face of
the cylinder head, substanially as and for the purposes shown and set forth.
Datsu
this 23rd day of July HOOT
H. M. QUACKEN BUSH.
By Herbert & Co.,
Agents,
67, Strand.