U.S. patent number 3,921,980 [Application Number 05/494,723] was granted by the patent office on 1975-11-25 for ice cannon combined with frozen projectile supply structure and target structure.
This patent grant is currently assigned to Walt Disney Productions. Invention is credited to Richard F. Artzer.
United States Patent |
3,921,980 |
Artzer |
November 25, 1975 |
Ice cannon combined with frozen projectile supply structure and
target structure
Abstract
A target shooting apparatus having a shooting station and a
target station separated by a range area with a projectile launcher
at the shooting station adapted to discharge frozen particles in a
controlled trajectory at the target station. The projectile
launcher is provided with a frozen projectile supply having a
refrigeration plant for the freezing of an aqueous medium into a
plurality of frozen projectiles and transport facilities are
provided for delivering the frozen projectiles to the shooting
station. In a typical embodiment, the refrigeration plant is a
conventional ice cube maker with a suitable dispenser and pnuematic
transport facilities for dispensing and delivering ice cubes to the
breech of a simulated artillery piece such as a cannon for
launching at a target such as a ship in an aquatic environment. The
artillery piece has an outer housing which simulates the barrel of
a cannon with an internal, resonator sleeve supported at its
discharge end in which the barrel of the frozen projectile launcher
is supported. The launcher is powered with a compressed gas and the
resonator sleeve acoustically amplifies the release of air pressure
from the barrel. The launcher is also provided with a breech body
having a central, transverse bore in which is rotatably mounted a
plug member. The plug member has a projectile chamber which, when
the plug is rotated between loading and firing positions, assumes a
generally coaxial extension with radial bores in the breech
body.
Inventors: |
Artzer; Richard F. (Orange,
CA) |
Assignee: |
Walt Disney Productions
(Burbank, CA)
|
Family
ID: |
23965706 |
Appl.
No.: |
05/494,723 |
Filed: |
August 5, 1974 |
Current U.S.
Class: |
273/405; 62/331;
124/73; 124/77; 473/569 |
Current CPC
Class: |
F41J
11/00 (20130101); A63F 9/0252 (20130101); F25C
5/20 (20180101); F41B 11/00 (20130101); F41B
11/57 (20130101) |
Current International
Class: |
A63F
9/02 (20060101); F41B 11/00 (20060101); F25C
5/00 (20060101); F41J 1/00 (20060101); F41J
1/18 (20060101); A63B 065/12 (); F41F 001/04 ();
F41J 009/04 () |
Field of
Search: |
;124/5,11R,27
;273/101,105.4,105.5,16R ;62/1,331,340 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Apley; Richard J.
Assistant Examiner: Stouffer; R. T.
Attorney, Agent or Firm: Fulwider, Patton, Rieber, Lee &
Utecht
Claims
I claim:
1. A target shooting apparatus comprising:
a shooting station;
a target station positioned down range therefrom and having target
means within the range of projectiles launched from said shooting
station;
a frozen projectile supply means remote from said shooting station
having refrigeration means for the freezing of an aqueous medium
into a plurality of solid-form frozen projectiles;
frozen projectiles storage means communicating with said frozen
projectile supply means for storing frozen projectiles supplied
thereby;
frozen projectile transport means for delivering frozen projectiles
singly to said shooting station;
dispensing means to discharge said frozen projectiles, singly, into
said transport means from said storage means;
cold chest means surrounding said storage means and said dispensing
means; and
projectile launching means at said shooting station including means
communicating with said transport means to receive said frozen
projectiles singly from said transport means and to place each of
said projectiles into a location in said launching means from which
it is to be launched, said projectile launching means further
including means to direct said launching means towards said target
means and to discharge said projectiles from said launching means
in a controlled trajectory at said target means.
2. The target shooting apparatus of claim 1 wherein:
said target station is surrounded by an aquatic environment.
3. The target shooting apparatus of claim 2 wherein:
said projectile launching means is a simulated artillery piece and
said target means are simulated ships.
4. The target shooting apparatus of claim 1 wherein said projectile
launching means comprises:
a base;
a tubular housing carried thereon and simulating the barrel of an
artillery piece;
a tubular resonator member carried by the forward end of said
housing and coaxially extending within said housing and terminating
therein with a closed end plate;
a projectile barrel within said housing and extending through said
end plate, coaxially with said resonating member for a substantial
length of said resonating member and terminating in an open-ended
discharge in said resonating member intermediate the ends
thereof;
breech means at the rear of said barrel for introducing projectiles
into said barrel; and
conduit and valve means to supply compressed gas to the breach
means whereby projectiles positioned therein can be discharged from
said launcher.
5. The target shooting apparatus of claim 4 wherein:
said housing is carried by means whereby the elevation and azimuth
of said tubular housing can be fixedly adjusted to control the
trajectory of said projectiles.
6. The target shooting apparatus of claim 5 wherein:
said housing also contains a pressured gas reservoir upstream of
said conduit and valve means to accumulate a sufficient charge of
compressed gas to fire said launcher.
7. The target shooting apparatus of claim 5 wherein:
said base bears wheels whereby said launching means is mobile.
8. The target shooting apparatus of claim 1 wherein said dispensing
means comprises a vibratory feeder having a vibrating pan bearing a
spiral track on its inside perimeter discharging to a dispensing
port communicating with said transport means.
9. The target shooting apparatus of claim 8 wherein said transport
means comprises a conduit and blower means therein to pneumatically
convey said frozen projectiles through said conduit.
10. The target shooting apparatus of claim 8 wherein said
dispensing means includes a shuttle block reciprocally carried by a
housing and having a cavity to receive frozen projectiles from said
dispensing port and transfer said projectiles singly into said
conduit of said transport means.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention:
This invention relates to target shooting apparatus and, in
particular to target shooting amusement devices.
2. Description of the Prior Art:
Target shooting apparatuses commonly found in amusement parks and
the like are usually shooting galleries having small, hand guns
where the cost of the projectiles and the labor in policing the
target area and recovering the projectiles is relatively minor.
Shooting apparatuses employing larger scale projectile launching
means such as simulated artillery pieces, mortars, cannons, rock
throwing machines, rocket launchers and the like have not found
acceptance, despite their obvious attractiveness, because of the
large expense associated with the manufacture and supply of the
necessary projectiles as well as the labor in policing the target
station and retrieving or removing the spent projectiles.
Accordingly, there has not previously been provided any target
shooting apparatus having a shooting station and a target station
separated by a range of substantial distance and simulated
artillery pieces.
SUMMARY OF THE INVENTION
This invention comprises a target shooting apparatus which employs
frozen projectiles, preferably ice cubes, balls and the like, that
can be launched by projectile launching means which simulate
artillery pieces such as mortars, guns, cannons, rock throwing
machines, rocket launchers and the like. In its preferred
embodiment, the simulated artillery piece comprises an ice cannon
and is used in combination with nautical targets such as boats,
ships and the like which are supported at a target station,
surrounded by an aquatic medium. The use of the frozen projectiles
in the shooting apparatus eliminates the labor that would otherwise
be required for the retrieving of spent projectiles, eliminates the
need to interrupt the use of the apparatus for such retrieval, and
also avoids the unsightly littering of the target station with
spent projectiles. In the preferred embodiment, the frozen
projectiles are manufactured with conventional refrigeration
equipment such as an ice cube maker, thereby reducing,
substantially, their cost of manufacture and providing inexpensive,
expendable projectiles which degrade to innocuous waste products
that disappear entirely into the target area environment.
The projectile launching means employed in the shooting apparatus,
preferably, has a tubular housing which simulates the barrel of an
artillery piece with a tubular, resonator member carried from its
forward end and extending rearwardly and coaxially with the housing
and terminating therein with a closed end plate. The barrel of the
projectile launching means is mounted within the tubular housing
with its forward end extending through and supported by the end
plate of the resonator member. This construction provides means for
acoustically amplifying the noise from the release of the
compressed gas used in discharging the frozen projectile from the
breach of the launching means.
The breach of the launching means is preferably provided with a
plug member rotatably mounted therein and having a cross bore that
forms the projectile chamber. The breach body includes two bores
radially extending from the transverse bore which are aligned with
the barrel of the launching means and with the frozen projectile
delivery means so that the plug member can be rotated between
loading and firing positions. Preferably, the projectile chamber of
the plug bears a plastic liner to prevent the frozen particles from
adhering to the surfaces of the chamber.
The delivery means for transporting the frozen projectiles from the
site of their manufacture to the breech of the projectile launching
means comprises a blower with conduit means extending from the
blower discharge through the projectile dispensing means at the
refrigeration site and conduit means extending from the dispensing
means to the breech of the projectile launching means. In its
preferred embodiment, the intake of the blower is connected to an
exhaust port in the breech body whereby the projectiles are
facilitated in their transport by the reduced pressure on the
intake side of the blower.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 illustrates the target shooting apparatus;
FIGS. 2-4 illustrate the frozen projectile dispensing means
employed in the invention;
FIG. 5 is a cross-sectional, elevation view of the projectile
launching means;
FIGS. 6-9 illustrate the breach mechanism employed in the
projectile launching means; and
FIG. 10 illustrates the electrical and pneumatic controls employed
in the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to the drawings and particularly FIGS. 1-3 thereof, a
preferred form of ice cannon apparatus embodying the present
invention includes a simulated cannon C that receives ice cube
projectiles 11 from a cold storage chest S by means of a delivery
conduit 12. The ice cubes are made by a conventional ice cube maker
13 mounted upon cold storage chest S. The cannon C shoots the ice
cubes 11 at a target 14 surrounded by an aquatic environment 14a,
as indicated by trajectory line 15. The ice cubes are transported
from cold storage chest S through delivery conduit 12
pneumatically, such conduit 12 being in communication with the
discharge of an air source A disposed in chest S and a return line
16 connected to the suction of air source A. The ice cubes 11 are
propelled from cannon C by air pressure, such cannon being
connected by pipe 18 to a source of compressed air 19.
More particularly, ice cube maker 13 may be of the type
manufactured by Queen Products Division, King-Seeley Thermos Co.,
Albert Lea, Minnesota, and sold by Sears, Roebuck & Co. under
the trademark "Scotsman." Such an ice cube maker makes ice cubes 11
of cylindrical cross-section. As shown in FIGS. 2 and 3, the lower
portion of ice cube maker 13 is provided with a discharge chute 20
through which ice cubes 11 fall into the bowl 42 of a conventional
vibratory parts feeder V, such as that sold by Syntron Division,
FMC Corporation, Homer City, Pennsylvania, under the trademark
"Syntron" (Model Series EB). The vibratory parts feeder V is
disposed within the cold storage chest S. Bowl 42 is formed with a
spirally inclined track 44 on the inside perimeter thereof. For the
particular use contemplated by the present invention, bowl 42 is
modified to include a vertical terminal port 46 of cylindrical
cross-section dimensioned to receive the ice cubes 11 on the
extreme radially outer end of the track 44. This port is aligned
substantially normal to the surface of bowl 42. Immediately
adjacent port 46, bowl 42 is further modified to include an end
stop 48 which directs ice cubes 11 into the upper end of the
port.
connected to the lower surface of port 46 is the upper end of a
vertical, flexible transparent feeder hose 50 of a cylindrical
transverse cross-section slightly larger than the cross-sectional
dimension of ice cubes 11. The lower end of hose 50 is attached to
the upper end of a cavity 52 of a shuttle block 53 that is slidably
carried within a housing 54, shown in detail in FIG. 4. Shuttle
block 53 is actuated by a conventional slave air cylinder and
plunger unit 56 secured to the base 60 of cold storage chest S.
Shuttle block 53 serves to transfer ice cubes 11 from feeder hose
50 to an aperture 58 formed in housing 54 in alignment with and
interposed in delivery conduit 12, when shuttle block 53 is shifted
from its solid outline position of FIG. 4 to its dotted outline
position of such figure under the influence of cylinder and the
plunger unit 56. An ice cube 11 a is then moved through the section
of delivery conduit 12 below shuttle block housing 54 into cannon C
by air pressure. Shuttle block housing 54 is provided with a
horizontally slidable plate 62 below cavity 52 which is selectively
retracted to the left from its closed position of FIGS. 2, 3 and 4
by a conventional solenoid actuator unit 64 in these figures
whereby unused ice cubes (not shown) remaining in bowl 42 may be
dumped. In this manner, bowl 42 is periodically emptied to receive
a new charge of fresh ice cubes 11 as substitutes for ice cubes
which have deteriorated with time within the bowl.
Referring now to FIGS. 5-9, delivery conduit 12 extends from
aperture 58 to the bottom of caisson 68 of cannon C and then
upwardly to a vertical bore 70 extending upwardly from the bottom
surface of a loader, generally designated 72. At the upper front
surface of loader 72, return fitting 16 is connected to a
horizontal bore 104 that intersects bore 70. Loader 72 directs ice
cubes into the actual barrel 84 of cannon C and includes a breech
body 86 wherein are formed bores 70 and 74. Body 86 pivotally
supports a metallic swivel plug 88 by bearings 90. Swivel plug 88
is formed with a bore 91 wherein is disposed a synthetic plastic
cup 92 having dimensions just slightly larger than those of ice
cubes 11 to define a frozen projectile chamber. Cup 92 is of
plastic construction rather than metallic construction to insure
ice cubes will not stick therein. A loader arm 94 is keyed to a
sideward extension 96 of swivel plug 88 by means of which such plug
can be swung from its ice cube-receiving position of FIGS. 7 and 9
to its cube-firing position of FIGS. 6 and 8. Loader arm 94 is
pivotally connected to the push rod of a slave air cylinder 96,
which air cylinder is actuated by a master cylinder unit to be
described hereinafter for swinging loader arm and hence the swivel
plug 88 between its cube-receiving and cube-firing positions. An
aperture 98 is coaxially formed in the closed end of cup 92 and a
rubber bumper ring 99 is secured within such closed end.
Horizontal bore 74 is aligned with actual barrel 84 of cannon C, as
shown in FIGS. 6 and 8. Swivel plug 88 is formed with a port 100
that intersects cup aperture 98 when such block is in its loading
position of FIGS. 7 and 9. At this time port 100 and aperture 98
are also aligned with a by-pass passage 102 formed in body 86 of
loader 72, as seen in FIGS. 7-9. The upper end of by-pass passage
102 is in communication with return line 16 by a branch passage
104, shown particularly in FIGS. 8 and 9, whereby the reduced
pressure of the air blower A intake can be applied to facilitate
movement of the ice cubes into the chambers in plug 88. With
continued reference to FIGS. 8 and 9, loader 72 is also formed with
a horizontal supply port 105 aligned with actual barrel 80 and
intersecting bores 70 and 74. Port 105 is connected to an air line
106 that extends rearwardly within cannon C to an air valve 108
shown in FIG. 5. A small vacuum line 114 intersects air line 106
adjacent loader 72 for a purpose to be described hereinbelow.
Referring again to FIG. 1 and additionally to FIG. 5, the cannon C
includes a simulated barrel 116 which houses the aforementioned
actual barrel 84. The front end of actual barrel 84 terminates
inwardly of the front end of simulated barrel 116. A cylinder 118
coaxially surrounds actual barrel 84. The rear end of such cylinder
is closed by a cap 120. This arrangement provides a resonant
structure for acoustically amplifying the noise accompanying the
sudden release of compressed air that propels the ice cubes 11
along the trajectory 15 towards target 14.
The elevation and azimuth of cannon C may be controlled in a
conventional manner so as to permit the cannon user to aim the
cannon at target 14. A trigger 121 shown in FIG. 1 extends from the
rear portion of simulated barrel 116. Such trigger is connected to
the actuating lever 122 of air valve 108 by a lanyard 126. Disposed
rearwardly of air valve 108 within simulated barrel 116 is an air
storage container 128 connected to air valve 108 by a short pipe
130. Air accumulator 128 receives compressed air through a tube 131
which is shown broken in FIG. 5 in the interest of clarity. As
indicated in FIG. 5, the lower end of tube 131 is connected is
connected to a T-fitting 132 positioned within the lower portion of
caisson 68. The lower end of T-fitting 132 is connected to the
aforementioned air supply pipe 18 which is shown connected to
compressed air source 19 in FIG. 1. Forwardly of T-fitting 132
caisson 68 supports an auxiliary air storage tank 134, such tank
receiving air from the center outlet of the T-fitting. The front
end of tank 134 is connected to a master cylinder and piston unit
136, the latter being in communication with the aforementioned
slave cylinder and plunger unit 96 by tubing 138 and 140.
Referring now additionally to FIG. 10, in the operation of the
aforedescribed ice cannon apparatus there is provided a source of
electrical power E (such as 24 volts AC) which is connected across
a coin box 150 of conventional construction. The coin box includes
a switch 151 which is adapted to be closed upon receipt of a
predetermined value of coin. When the coin box switch 151 is closed
the output therefrom energizes one set of terminals of two parallel
push-to-close switches S-1 and S-4. Switch S-1 is disposed to be
closed by the placement of the firing arm 124 in the "fire"
position. In this position switch S-1 energizes both a "ready"
light 152 indicating that the cannon C is ready to be fired and the
contactor of a series-connected switch S-3. Switch S-3 is
operatively connected to be closed by the actuation of trigger 122
to energize a coil 153 which pulls in the armature of air valve 108
thereby suddenly discharging the compressed air within accumulator
128. This charge of compressed air travels forwardly through air
line 106 to loader 142. At this time swivel block 88 is disposed in
its "fire" position of FIGS. 6 and 8. Accordingly, the ice cube 11
b disposed within cup 92 will be shot forwardly through actual
barrel 84 along trajectory 15 towards target 14.
Also connected from the output of switch S-3 is the solenoid coil
154 of aforedescribed master control cylinder 134, which controls
the operation of the aforedescribed slave cylinder 96. When
energized through coil 154 the master control cylinder 134 rotates
loader arm 94 and hence swivel block 88 to its "load" position of
FIGS. 7 and 9. Upon reaching such "load" position, loader arm 94
depresses push-to-close switch S-4 also connected to outlet of coin
box 150 which in turn energizes a coil 156 of a switching relay 157
to initiate a count in a conventional timer 159. At the completion
of the count of timer 159 a firing coil of the master control
cylinder 134 is energized to activate the loader arm 94 and hence
swivel block 88 to its "fire" position of FIGS. 6 and 8. When the
swivel block 88 has been disposed in proper "fire" position, loader
arm 94 closes switch S-1 as described hereinabove.
Also connected to the output of switching relay 157 is a shuttle
control coil 160 disposed to activate a master control cylinder 161
that controls the operation of aforedescribed cylinder and plunger
unit 56 to thereby drive the shuttle block 53 from its solid
outline position of FIG. 4 to its dotted outline position thereof
whereby cavity 52 will be aligned with aperture 58. The ice cube 11
a shown in FIG. 4 will then be driven through delivery line 12
towards the loader 72. At the completion of the delay provided by
timer 159 a return coil 162 on master cylinder 161 is energized so
as to return shuttle block 53 to its solid outline position of FIG.
4 wherein another ice cube may fall into the cavity 52. The output
signal of timer 159 also energizes a coil 170 on control valve 155
to move loading arm 94 and hence swivel block 88 to the "fire"
position of FIGS. 6 and 8.
Timer 159 may be any conventional timer selectively set to provide
a time delay that allows sufficient time for an ice cube to
progress from shuttle block housing 54 to loader 72. Timer 159 may
further include a conventional counter (not shown) which at the
completion of a predetermined count of timing cycles disables the
control system. In this manner a user of the cannon C will be
provided with a plurality of shots for the coins dropped into coin
box 150.
The invention has been described with reference to the presently
preferred and illustrated mode of practice thereof. It is not
intended that the invention be limited by the illustrated and
preferred embodiment. Instead, it is intended that the invention be
defined by the means and their obvious equivalents set forth in the
following claims.
* * * * *