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3893336 |
Method and apparatus for automatically evaluating accuracy and pattern density for a shotgun
A spot of light is projected onto an exposed target portion of a roll of opaque paper. A shotgun is aimed at the spot and fired from a predetermined distance so that the propelled shot particles...
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3886792 |
Conformal pressure transducer for ammunition testing
A transducer for converting pressure changes into electrical signals wherein the pressure changes act on one surface of a relatively thin wall, such as pressure changes within a tube. A piston...
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3886793 |
Projectile body testing machine
A fully automatic machine for non-destructive testing of projectile bodies. he machine includes an eddy-current station for inspection for cracks or holes in the nose threads of a projectile body...
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3863499 |
SIMULATING FIRING STRESSES IN GUN BARRELS
Method of and apparatus for testing gun barrels by simulating firing stresses using a small explosive charge and an insert within the barrel, which defines an annular space in which the charge...
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3854331 |
VENTED TEST BARREL ASSEMBLY FOR REVOLVER AMMUNITION
A test barrel assembly for a universal receiver includes a cylinder, having a cartridge-receiving chamber, and a barrel secured to the cylinder in a manner such that a rifled bore of the barrel is...
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3854332 |
INCENDIARY CAPTURE DEVICE
A method and apparatus is provided for catching and extinguishing burning rticles so that they may be retrieved for study. A receptacle filled with inert powder is placed within the realm of...
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3834313 |
DETONATOR
In the detonator disclosed, a semiconductor device has its path of major current flow placed in series with a switched power source and a checking apparatus. An explosive adjacent the semiconductor...
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3824463 |
INDUCTANCE TYPE VELOCITY MEASURING APPARATUS
A shot cluster velocity measuring apparatus in which the coils through which the shot is to sequentially pass are mounted in axially spaced relation and are electrically connected as frequency...
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3817096 |
BALLISTIC RANGE DUST EROSION APPARATUS
Ballistic range dust erosion testing apparatus wherein a saboted test specimen is fired through a calibrated test environment and then captured intact in a deceleration tube for the extraction of...
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3805608 |
RIFLE ZEROING DEVICE
A mechanical holder consisting of two adjustable clamps, rigidly secured to two shafts to form a carriage adapted to move horizontally through four self-aligning bearings bolted to an angle iron...
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3800598 |
METHOD FOR EXAMINING THE INNER SURFACE OF A HOLLOW MEMBER
A method of examining the inner surface of a hollow member is disclosed. The method includes inserting a test body into the hollow member and pressing the test body against the inner surface of the...
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3792354 |
VELOCITY MEASURING SYSTEM
A system and method for determining the relative velocities of a projectile at different portions of its path in which a plurality of signalling detector stations are arranged at predetermined...
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3787770 |
METHOD AND APPARATUS FOR DETECTING A PROJECTILE LEAVING THE BARREL OF A GUN
A method and apparatus for detecting a projectile leaving a gun using a permanent horse-shoe magnet located at or near the muzzle of the gun whereby the projectile cuts some of the magnetic lines...
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3780614 |
MULTIPLE BULLET AND CARTRIDGE MOUNT FOR FORENSIC MICROSCOPE
A multiple bullet and cartridge holder for use with a forensic microscope has a carriage with a plurality of conventional mounts for bullets and provides rapid interchangability of specimens for...
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3780576 |
HIGH ENERGY SLURRY EXPLOSIVES
A method of testing the uniformity of liner effectiveness. Randomly selec shaped bomblet cases are uniformly filled with a slurry explosive. The cases are fired into armor plate targets and the...
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3771620 |
VAPORIFIC DAMAGE MEASUREMENT ARENA
A method and apparatus is provided for investigating the effectiveness of plosive warheads by measuring the free air shock generated when hypervelocity fragments from a test warhead inpact a target...
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3767215 |
MULTI-RING HYDRAULIC SEAL FOR IRREGULAR BORE SURFACES
The sealing of irregular bore surfaces against the leakage of high pressure ydraulic fluid is accomplished by a multi-ring unit including an elastomer ring supported between a pair of teflon rings...
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3766778 |
METHOD AND MEANS FOR ANALYZING BARRELS AND AMMUNITION ON THE BASIS OF BUCKSHOT SCATTER
The number and distribution of hits by buckshot pellets on a test area are analyzed by moving the test area relative to a sensor that covers a zone smaller than the area and approximates the size...
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3765235 |
METHOD OF MEASURING SIDE SLAP OF A PROJECTILE IN GUN TUBE
A method of monitoring side slap of a projectile during its in-bore travel. coil and magnet assembly is mounted on the outer periphery of the projectile under observation. The assembly is insulated...
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3760262 |
ELECTROSTATIC SPARK IGNITION SENSITIVITY TEST APPARATUS AND METHOD
A variable gap electrostatic spark ignition sensitivity test apparatus has : cathode terminal for holding a test sample, an anode terminal in the form of a needle separated from the cathode...
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3750170 |
VELOCIMETER FOR DETERMINING THE MAXIMUM OR MINIMUM RELATIVE VELOCITY BETWEEN TWO BODIES
A method and apparatus for determining maximum or minimum relative velocity etween two bodies as measured radially from one of the bodies, which comprises a transmitter/receiver complex for the...
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3736793 |
CARTRIDGE FLASH HOLE INSPECTION APPARATUS
An apparatus for inspecting the number and capacity of vent or flash holes in a cartridge case having an optical tester to count the vent holes and pass a case upon detection of a minimum number of...
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3737165 |
SHOOTING RANGE BULLET TRAP STRUCTURE
Freedom from exposed partition edges is attained by means of concealed cantilever supporting bracket arm structure on one or more vertical bars behind and in supporting relation to downwardly and...
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3733465 |
LOG-BASE ANALOG BALLISTICS COMPUTER
An electronic analog ballistics computer wherein various ballistics correon analog signals as well as the log of the range from a range finder, either optical or one employing the laser principle...
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3727455 |
IMPULSE TRANSMITTER FOR DYNAMIC DEVICES FOR TESTING PIECES OF ORDNANCE
An impulse transmitter for dynamic devices for testing pieces of ordnance to simulate the recoil of the piece without actual firing. The impulse transmitter includes a housing having a cylinder...
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3701278 |
TEST APPARATUS FOR COMBUSTION EVALUATION
A combustion chamber for testing under actual burning conditions the ability of air augmented solid propellants to meet operational requirements under subsonic or supersonic environments.
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3693432 |
ARTILLERY GUN SHOCK SIMULATOR
A weapon shock simulator testing arrangement having a gun tube with a bre mechanism to close its rearward end and extension tubes connected to its forward muzzle end terminating with a sealing cap....
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3681690 |
OPTICAL ANGULAR ACCELEROMETER
An optical system for determining the angular velocity of a rotating memb The system consists of two major optical assemblies. One assembly in a catadioptric retroreflector attached to the rear end...
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3680966 |
APPARATUS AND METHOD FOR SHELL INSPECTION
Optoelectronic apparatus for inspecting the size of apertures in a shell casing includes a light source probe, having an output light diffusing element with a masked central area, for presenting a...
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3678745 |
BALLISTIC COMPRESSION DECELERATOR
Projectiles are recovered from free-flight for analysis of flight effects on the projectile. Recovery is accomplished by converting kinetic energy into controlled heat of compression which is...
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3659201 |
APPARATUS FOR MEASURING THE MUZZLE VELOCITY OF A PROJECTILE
Apparatus for measuring the muzzle velocity of a projectile has a measuring system at the muzzle of the gun barrel. The measuring system has two relatively spaced coils through which the projectile...
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3656056 |
BULLET HOLE LOCATOR-RESISTANCE TYPE
The point at which a bullet or other passing object passed a line may be ermined by the present invention. Or, the direction from which the object came, is ascertained by comparing the points at...
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3654553 |
REMOTELY SENSING OPTICAL TACHOMETER
A remotely sensing optical tachometer for measuring the spin rate of a rotating member. The invention provides a simple optical system for measuring the spin and/or rate of change of spin, of, for...
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3634758 |
MEASURING THE FUNCTIONING TIME OF A SEMICONDUCTOR ELECTROEXPLOSIVE INITIATOR
The functioning time of a semiconductor electroexplosive initiator is determined by applying to the initiator a voltage capable of firing it and measuring the time it takes for the initiator to...
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3626451 |
APPARATUS AND METHOD FOR THE DYNAMIC TESTING OR ORDNANCE
A thrust unit is placed in contact with the nozzle of an artillery piece and a power unit applies dynamic force to the thrust unit and thus to the artillery piece to simulate firing of the...
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3597968 |
ROCKET ASSISTED PROJECTILE-SPIN STATIC FIRING STAND
A thrust test stand for spin testing a solid propellant motor in which the spin drive motor is isolated from the thrust of the propellant motor.
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3597969 |
DYNAMIC TESTER FOR PROJECTILE COMPONENTS
Projectile component testing. A modified projectile, containing components to be tested, is accelerated by means of a vacuum air gun into a spinning tube where it is set in spinning motion while...
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3580046 |
METHOD AND APPARATUS FOR TESTING ROTATION-RESPONSIVE DELAY DEVICES
Arming delay-devices, suitable for delaying the arming of an artillery shell until it is well away from the gun by which it is fired, are tested in production by rotating each of them in a test...
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3580049 |
ROCKET BURN RATE TESTING DEVICE
A closed chamber designed to hold one or more strands of a solid propellant is equipped with igniting means, pressure indicating means, and burning rate indicating means. The apparatus avoids the...
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3568600 |
METHOD AND APPARATUS FOR CHECKING FIRING PRESSURE OF AMMUNITION
A method and an apparatus are described for enabling a sportsman to determine the correct amount of powder that he should add to firearm cartridges to produce maximum safe working pressures. A...
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3538318 |
WEAR WEIGHTING FUNCTION GENERATOR FOR THE DETERMINATION OF THE PROPER AIMING OF A GUN
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3513697 |
HAND LOADERS MAXIMUM EXPLOSION PRESSURE INDICATOR
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3504543 |
GUN BEND SENSOR
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3495455 |
NUCLEAR BLAST PRESSURE SIMULATOR
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3464266 |
GUN BORE WIRE TAKEUP CONE
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3453882 |
DEVICE FOR INDICATING PASSAGE OF A PROJECTILE IN A BORE
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3447077 |
MULTIPLE MISSILE VELOCITY MEASURING APPARATUS
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3444733 |
ARTILLERY SIMULATOR
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3443430 |
CARTRIDGE FOR MEASURING CHAMBER PRESSURE
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3413005 |
Zoned liquid golfing target
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