Ordnance – Fuse setters – Combined with projecting – launching or releasing devices
Reexamination Certificate
2000-01-10
2001-09-18
Jordan, Charles T. (Department: 3644)
Ordnance
Fuse setters
Combined with projecting, launching or releasing devices
C089S006000
Reexamination Certificate
active
06289780
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention concerns a device for adjusting a fuse without actually touching it in the tip of a large-caliber projectile, wherein the device is provided with a programming station that has an annular or cylindrical programming coil mounted on it coaxially with the longitudinal axis of the resting projectile and communicating with electric controls, the tip of the projectile extending into the coil at least while the fuse is being adjusted.
Armored howitzers are described in European Patent 0 331 980 B1 and German Patent 2 642 920 C2 for example. A mechanism automatically transfers their projectiles from a magazine to the rear of the weapon. The fuse must be automatically adjusted at a prescribed point along this route prior to ramming, conventionally by a programming coil connected to electric controls while the tip of the projectile extends into the coil. The projectiles are usually deposited in a tilting tray with the programming station at one end. It is, however, not easy to ensure that the tips come to rest precisely inside the coil when the fuses of several projectiles of different lengths are being adjusted. Furthermore, delicate fuses can be damaged when the projectiles are thrust into the coil at high speeds and braked therein.
SUMMARY OF THE INVENTION
The object of the present invention is accordingly an improved device of the aforesaid type for adjusting the fuses without actually touching them in large-caliber projectiles, wherein the device will trim the programmable fuses without actually touching them in projectiles of different length employed in particular in howitzers with automatic projectile transfer, wherein the fuse will always be at the same distance from the coil no matter how long the projectile is and wherein the fuse cannot be damaged as it enters the coil.
This object is attained in accordance with the present invention in that the programming coil slides back and forth axially paralleling the resting projectile relative to the programming station and by a Y-shaped grip that secures the projectile, that is positioned facing the side of the coil toward the projectile, that is shaped to accommodate the tip of the projectile, and that moves along with and axially parallels the coil, such that, with the tip of the projectile fixing the projectile grip when it is accommodated therein, the coil can be moved out of a disengaged position relative to the projectile grip and into a fuse-measuring position wherein the distance between the projectile grip and the coil is established by stops. Advantageous advanced embodiments of the present invention will be specified hereinafter by way of examples.
This basic theory behind the present invention is, rather than shifting it into the programming coil, to secure the projectile at its tip with the projectile grip and then to move the coil axially until it arrives in its fuse-measuring position where it is halted by stops at a prescribed distance from the fuse, which can then be adjusted without actually being touched.
Once the programming coil has been moved back out of the fuse measuring position, the projectile can be tilted up and removed from the projectile grip for forwarding. With shorter projectiles, the tips of which are farther from the programming station while they are resting in the tray, the coil and projectile grip are initially moved toward the projectile until the projectile grip comes into contact with a prescribed point on the projectile and is accordingly fixed, upon which the coil is moved farther toward the projectile grip and into its fuse-measuring position.
As the programming coil moves toward the projectile grip, the stop ensures that the distance between the fuse and the coil remains constant, preventing any contact between them. One embodiment of the present invention will now be specified by way of example with reference to the accompanying drawing, wherein:
REFERENCES:
patent: 1307639 (1919-06-01), Redpath et al.
patent: 1863659 (1932-06-01), Johenning
patent: 1946487 (1934-02-01), Dabrasky
patent: 2438165 (1948-03-01), Haas
patent: 2887011 (1959-05-01), Harvey et al.
patent: 5343795 (1994-09-01), Ziemba et al.
Chadbourne & Parke LI
Jordan Charles T.
Krauss-Maffei Wegmann GmbH & Co. KG
Zerr John W.
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