Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 5648633 | Elevation sight mount for a piece of artillery An elevation sight amount for a piece of artillery includes a support to accommodate a goniometer and two perpendicular spirit levels to check the verticality of the goniometer. The support is rotatably mounted around an axis oriented perpendicular to a l... | 07/15/1997 |
| 5280744 | Method for aiming towed field artillery pieces Each towed field artillery piece in a battery of field artillery pieces uses a heading reference system having a "slave" azimuth gyro, pitch and roll angle sensors and a readout display for correcting azimuth and elevation during a fire mission. A master ... | 01/25/1994 |
| 4961369 | Gun laying A gun laying aid for determining the offset in the bearing of a gun due to trunnion tilt. The gun laying aid has a support member on which are rotatably mounted a bearing indicator member and a reference member. A correction indicator is pivotally mounted... | 10/09/1990 |
| 4693168 | Method and apparatus for aiming indirectly aimable weapons A method and apparatus for aiming indirectly aimable weapons free from tipping and tilting angle and independent of the oblique position of the weapon. The position of the weapon is supplied with respect to an earth coordinate system by a position referen... | 09/15/1987 |
| 4632012 | Fire control system for moving weapon carriers A fire control system for a mobile weapon carrier incorporates a strapdown sensor block that includes inertial sensors. The digital outputs of the sensor block are utilized for weapon and sight stabilization, fire control and navigation with the aid of a ... | 12/30/1986 |
| 4402250 | Automatic correction of aiming in firing at moving targets In a method for automatically measuring aiming errors and correcting aiming values in the aiming and firing of ballistic weapons at moving targets the continuously supplied direction values (A', E'+ς) of a target position measurement, corrected for daily... | 09/06/1983 |
| 4356758 | Aiming instrument Apparatus for aiming a gun barrel in a specific direction. A panoramic optical aiming system is provided which includes image reversion optics for compensating for image rolling. Additional control of the reversion optics is provided for compensating for ... | 11/02/1982 |
| 4353283 | Firing turret for a vehicle, and vehicle including such a turret A firing turret which can be oriented about its axis, permitting flat-trajectory or curved-trajectory firing of artillery projectiles. It includes a disc whose central portion includes an opening in the interior of which the cradle of the weapon can pivot... | 10/12/1982 |
| 4108045 | Weapon mounting arrangement A cardanically suspended movable turret having a tubular weapon mounted therein so that the bore axis of the barrel of the weapon intersects the vertical rotational axis of the turret and lies in between the elevation axis of the turret suspension and the... | 08/22/1978 |
| 4062267 | Apparatus for conducting firing Apparatus for conducting firing adapted to the aiming of a cannon movable bearing and in elevation around a turning axis as a function of aim values given by a firing table corresponding to the cannon and other parameters of firing. The apparatus compris... | 12/13/1977 |
