US1518920A - Projectile - Google Patents

Description

@sa 9 Kw2@ l.L J. HALLQRAN PnoJEc'HLE Filed: Nov., 4, 1920 @ya y @2961 64 5&5 W, fl' LM 3%/ 5 Q Y INVENTOR. mb, 1 7a/Z Jfzzm,

PATENT. OFFICE.

JOHN s. HALLOBAN, or DALY CITY, CALIFORNIA.

PROJECTILE.

y Application led November 4, 1920. Serial No. 421,692.

To all 'whom may concern.'

Beit known that I, JOHN J. HALLoRAN, a citizen of the United of Daly City, county oi"` San Mateo, State of California, have invented a new and useful Projectile, of which the following is a specification.

The present invention, while relating in general to projectiles, has reference more prt-icularlyto a missile or bullet for smooth re firearms.

In its preferred-form the invention con- Y templates `a projectile which may be used in Connection with a more or less conventional type of shot cartridge as commonly used as ammunition for a shotgun, the bullet in this instance taking the place of the customary shot pellets.

The invention possesses several features and advantages which will be referred to in the following detaileddescription and with reference to the various illustrative examples included in the accompanying drawing.

In said drawing Figure l is a longitudinal section of a cartridge illustratingthe application of one form of the invention; Figure 2 is a similar view illustrating the application of another form of the invention; Figure 3, end views showing various examples of cavities which may be made in the projectile as, for instance, in connection with the form shown in Figure l; Figure 4 isla similar view showing other forms of cavities including a Core corresponding to the form shown in Figure 2; Figure 5 is a longitudinal section showing the various shapes of cavities and Figure 6 is a similar View showing various other shapes of cavities includ-l ing cores. Figure 7 is a View of the nose of a projectile illustrating the application of one form of groove which will enable the project-ile to revolve by its own inertia; igure 8 is a side view in elevation showing the grooves referred to in connection with Figure 7 as extending along the sides o f the projectile; Figure 9 is a view similar to Figure 7, but showing a diiierent shaped groove, and Figure 10 is a view similar to `igure 8, but showing a different type of groove.

Referring now to the drawing in detail, the invention may be made in various shapes, forms, and including different structural details, but for the purpose of illustration a few examples are shown, and conl States, and resident Y the examples s .well as the body. This showing,

sidering first Figures 1, 3 and 5, together with Figures 7 to 10 inclusive, it is preferred to use the projectile or bullet with a cartridge which may be used with a shot-- gun of any one of the standard gauges, to which end a shell (l) may be made of paper or, ifdesired, metal jacketed, having vthe customary charge of powder (2) with 'its open end crimped as at (3) to conine the wad (4) in place so that the bullet (5) may be conned within the shell in the space betweenv the Wadding (4) and the wadding (6) which divides the powder charge.

According to the group of figures just referred to, the bullet (5) will be constructed with a relatively large cavity (5a) which is provided axially ofthe bullet to leave a relatively thin annular wall (5b) throughout that part of the length of the bullet which has a contact `with the bore of the gun.

The nose of the bullet, as is customary in heretofore knowntypes may have either a sharp ora blunt point,may'either be solid, patched, metal-jacketed, or otherwise constructed, such for instance as with mushrooming devices or the like. f

The cavity (5a) may remain unilled, or if desirable the same may be filled withA material such, for instance, as compressible wadding, paper, rubber, fibre, leather, felt, wood, stone, or any other non-metallic substance, and in this connection, when filled the materia-l constituting the filling may take the place of the wadding (6) The form or shape of the cavity (5a) may be made in an desirable figuration, such as i liown in Figures 3 and 5.

So far as concerns the nose'ofvthe bullet, o1' the outer circumference of. the same, it may be either plain or provided with spiral grooves (5C) on'itsnose which will not extend along the length of the same, or if desirable they may be continued as shown in Figure 8, or instead of continuing the spiral grooves (5) v along the circumference or length of the bullet, they may be straight, and in this connection attention is directed yto Figures 9 and l0, in which the grooves (5d) are shown as straight on the nose as however, should not be confused as limiting the invention to extending the grooves straight on both the nose and the length of the bullet,

as the ooves may be straight on the nose vand splral on t-he body, or vice versa.

The object. .in using the grooves is to re- Cil alize aselftwisting movement by the inertia of the bullet during its trajectory.

Considerin Figures 2, 4 and 6 in con nection with igures 7 to 10 inclusive, it is to be noted that while the bullet (5) also includes a cavity (5a) and a thin annular wall (5b) and, further, that the shape of the cavity (5a) may be in any desired figuration as in the case of the previous figures, this form also includes a core (5') which may be arranged either as an integral part of the bullet or as an attached element. The core (5') is arranged to be surrounded by the cavity (5a) andthe circumference of the core Will preferably have the same shape as the inside circumference of the cavity. This is clearly shown in Figure 4.

The cavity in this embodiment may be filled as mentioned in connection with the cavity in the other embodiment.

By referring to Figure 6 it is to be noted that the core (5') is constructed with various dimensions, both as to length and thickness. 1n some instances the core may extend beyond the buttend of the bullet, or it may terminate Within the cavity short of the butt. The grooves shown in Figures 7 to l0 inclusive and referred to in connection with the first embodiment, may be used in connection with the second embodiment with the same advantage.

- is fired throug Attention is now directed to Figures 1 and 2, in which it will be noted that a suit able lubricant (7) may be confined around the nose of the bullet Within the cartridge by the Waddin (4), so that When the bullet bricant will grease the bullet and reduce friction to a minimum. v

The nose of the bullet in the last described form may be either patched, solid, 'or metaljacketed or otherwise constructed, as in the case of the first mentioned form.

The use of the projectile is particularly adapted to tapered bore guns, and in this connection the relatively thin Walls (5") will permit the diameter of the gun bore to pinch the Walls of the projectile so that the same will not jam or be retarded in its travel through the gun barrel.

I c aim:

A projectile for a choke bore gun having a solid nose and a cylindrical body consisting of a relativel thm deformable shell having 'an open-en ed cavity commencing in the nose so that the entire cylindrical body readily adjusts itself to the various diameters of the tapered bore, and a central core attached to the nose of such a diameter as to remain out of contact with the shell.

JOHN J. HALLORAN.

the bore of the gun the luf

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