US1765017A - Drill projectile for bombarding planes - Google Patents

Description

- DRILL PROJECTILE FOR BOMBARDING PLANES Filed Jan. 3, '1929 Patented June 17, 1930 UNETED STATES titan? PATENT orrrct FELIX MARIE, F OAZA'UX, FRANCE, AssIGNoR Tee-era ram-ens (MinisfrERE DE LAIR), or PARIS, manner:

DRILL PROJECTILE FOR BOMBARDING PLANES Application filed January 3, 1929, Serial No. 330,006, and in France January 19, 1928.

The present invention relates to a projectile of an inexpensive type adapted for the training of the crews of bombarding planes.

The said projectile essentially comprises a central shaft upon which are disposed a sack containing a heavy substance and a tail part or fin, said shaft containing a charge of colored powder in such manner that a fuse which explodes in contact with the ground will disperse the said powder in the form of a colored cloud, thus indieating to the observer the point of impact of the projectile.

The following description with reference to the accompanying drawing shows the manner in which the invention may be carried into" effect.

Figure 1 is a vertical elevational view of the projectile according to the invention, partly in section.

Figures 2 and 3 are respectively a section on a larger scale showing the fuse and the charge of colored powder contained in the central shaft.

Figure 4 relates to a modification.

In the form of construction shown in Figures l, 2 and 3, at one end of the central shaft 1 consisting of a tube of metal or like material, is mounted the canvas sack 2 containing sand. At the other end of the said shaft are mounted the wings 3 which are attached by suitable connecting members 4 and form the tail or fin parts of the bomb.

In the interior of the sack 2 may be mounted one or more disks 5 which serve to weight the projectile to a determined amount, and also to give the cylindrical form to the sack 2.

At the lower end of the central shaft 1 is mounted the point or nose 6 of the fuse which carries the striker 7 and contains a spring 8 which holds apart the driving cartridge 9 provided with its percussion 10. The central shaft contains a certain charge of colored powder, for instance red ochre powder, which is held in place by the wads 12.

Figures 2 and 3 show on a larger scale the disposition of the fuse, and of the charge of colored powder.

lVhen the projectile is dropped from the airplane, it at once takes the upright position due to its tail parts, and thus falls with the fuse downward. When it strikes the ground, the device acts by inertia in such manner that the cartridge 9 compresses the spring 8, and the primer 10 makes contact with the striker 7 thus exploding the driving cartridge 9. The color powder, which may for instance consist of red ochre, will thus be driven to the top of the tube, and it is discharged as a colored cloud which is quite visible from the aeroplane and indicates to the observer the point of impact of the projectile which has been dropped.

If the bomb is of a large caliber, and hence has a heavy weight, it may be advantageous to use as the central shaft a mandrel of solid wood of rectangular section, instead of a tube.

An arrangement of this kind is shown in Figure 4. The wood mandrel 1 comprises at the top a central bore in which is disposed the fuse 6 with its driving cartridge 9, as well as the charge of colored powder 11 maintained by the wads 12.

Obviously, the said arrangement is susceptible of modifications in detail without departing from the present invention.

lVhat I claim is:

1. In a projectile, a container adapted to receive a cartridge, means supported on said container for exploding a cartridge positioned in the container, a flexible sack positioned outside said container, and marking material supported in said sack.

2. In a projectile, a container adapted to receive a cartridge, means supported on said container for exploding a cartridge positioned therein, a cloth sack positioned around said container, and marking material supported in said sack.

3. A structure as defined in claim 1 in combination with a cartridge positioned in 5 said container.

4:. In a projectile, a hollow shaft, a. fin connected to one end of said shaft, a cartridge supported inside said shaft, means operative to explode said cartridge when the projectile strikes the ground, a flexible sack supported outside said hollow shaft, and pulverized marking material supported in said sack.

In testimonywhereof I have signed this specification.

FELIX MARIE.

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