US1291189A - Projectile. - Google Patents

Description

S. SCUBLlONKG.

PROJECTIL'E. APPLICATIQN FILED sem. 7; 1918.

Ptentewan. 14,1919.

LQQLSQ.

Ar d .4 TTOHNEY i S'. SCOBLIONKO.

PROIECTILE.

APPLlcATmN man SEPT. 1. 191s.

1,291,189. Patented Jan. 14,1919.

A TTUHNE l SAMUAL SCOBLIONKO, F PHILADELPHIA, PENNSYLVANIA.

PROJ' ECTILE.

Application filed September 7, 1918.

To all whom t may concern:

Be it known that I, SAMUAL ScoBLIoNKo, a citizen of Russia, who has declared his intention of becoming a citizen of the United States, and a resident of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and useful Projectile, of which the following is a specification.

The object of this invention is to enable a projectile to be thrown a maximum distance, with less propelling explosive than would otherwise be required, and without requiring the cannon .to be unduly strengthened. This is accomplished by providing the projectile, which may be of various kinds, high explosive, shrapnel, etc., with a secondary propelling charge and with means operated by the ordinary rifling of the gun whereby this charge is red at an interval after the primary charge and before the projectile leaves the barrel, preferably when it is at or near the outer end thereof. This secondary charge is contained in a rearward extension formed on or united to the body of the shell, and having a destructible rear end, which separates the two driving charges and is adapted to sustain the force of the first explosion and to yield to the second. In order to time the explosion of the secondary propelling charge so as to occur after an extremely small interval, I propose to employ mechanical firing means, of a lostmotion or relay character, whereby a slightly retarded firing of the second charge is secured. The firing means, of whatever kind, is controlled'by a trigger button cooperative with the usual rifling. This button is advantageously located in a recess of a fixed driving band.

In the drawings:

Figure 1 is a view showing the shell proper in elevation and with an intermediate portion broken out for economy of space, and the extension in longitudinal section;

Fig. 2 is a similar view, the section being taken in a plane at right angles to that of Fig. l;

Fig. 3 is a partial plan view of the rear portion of Fig. 2, with the shield broken away to show parts beneath;

Fig. 4 is a cross-section on the line 4-41 of Fig. 1;

Fig. 5 is a partial cross-section on the line 55 of Fig. 1;

Speeication of Letters Patent.

Patented J an. 14, 1919.

Serial No. 252,996.

Fig. 6 is a similar view on the line 66 of Fig. 1; and

Fig. 7 is a cross-section on the line 7 7 of Fig. 1.

The body 1 of the projectile or shell may be of any usual or preferred form. It may contain a high explosive or shrapnel charge, and may be provided with an ordinary time fuse or be designed to explode on contact, or it might be an armor-piercing projectile. The hollow rearward extension 2 is shown as a separate hollow cylinder screwed onto the body 1or shell proper.

Into this cylinder there is inserted a frame consisting of a rear ring 4, a trough 5, and a front abutment 6, which last is suitably secured to the rear end of the body.

Behind the rear end of the frame and abutting it if desired, is a ring 7 screwed into 1a counter-bored and threaded enlargement of the interior ofthe extension. This ring has spider bars 8, against which a destructible rear plug or wall 9 is supported.

This plug is made of wood or other suitable material, faced with sheet asbestos on one or both sides, as indicated at 10, and is made large for a plain counter-bore 11, into which it is forced in the manufacture of the shell. A gasket 12 of rubber or the like at the front of the plug and pressed against a circular ridge 13 on the back of the ring 7, makes a tight joint against entrance of gas or fiame from the explosion of the primary driving charge to the cavity of the extension 2.

This cavity is filled with a secondary propelling charge 14 of suitable character.

The precise form of firing means will be subject to variation. lFor purpose of illustration I have shown twolongitudinal rods 15, 16 guided in suitable bearings in the trough 5. Each rod is encircled by an actuating spring 17 or 18. The rod 16 has its front end formed as a firing pin 19, to enter a hole in a case 20 containing a cap 21. A tube 22 extending from said case down into the charge 14 is filled with powder to carry the flame, this powder being retained by'a bit of cotton 23. Y

The Iring rod 16 is adapted to be held in its set or cocked position, with its spring under compression, by a pivoted detent 24. The rod 15, which is shown substantially parallel with the rod 16 to be urged by its spring rearward, whereas the spring 18 drives the rod 16 forward, operates to release or retract the said detent through the` intermediate action of a pivoted tripping lever 25. The rod 15 is held retracted or cocked by a detent lever 26, which is urged by a spring 27 into cooperative relation to a projection 28 on the rod.

The said'le-ver 26 is shown as provided with a saddle piece 29, to which la trigger button 30 is secured by means of a screw 31. This trigger stands in an opening 32 in the wall of the extension 2 and in a rear driving band 33, the top of the button being slightly below the surface of the band and being forwardly sloped or beveled. In this way, when the projectile is driven forward by the explosion of the primary propelling charge in the cannon, the trigger button is engaged and depressed by the usual riiiing of the gun, suiiciently to release the detent lever 26, which frees the rod 15, which strikes the tripper 25v and thereby releases the detent 24, which frees the firing pi n rod 16. The various lost-motion distances, such as those between the rod 15 and the tripper 25 and between the rod 16 and the cap 21, and the strength of the springs, are to be calculated so that the explosion of the ksecondary propelling charge 14 will take place before the projectile leaves the gun. At this time the gases generated by the eX- Elosion will still be confined within the gun,

ut the rifiing having been partially or mainly traversed by the projectile, the second eXplosionwill have less of this resistance to overcome.

In order to prevent unintended firing of the charge 14, the firing mechanism is preferably held against operation by ordinary blows or pressure by an obstructing means which will yield in some manner when the triggerbutton encounters the rifling. This may be accomplished by providing the button with a holding shoulder 35 at the forward side to rest on a ledge formed `by the outer surface of the wall of the extension 2, and by mounting the button on the saddle piece 29 in such manner that it may be. displaced rearward to clear the obstruction.V

For this purpose the hole 36 in the button through which the screw 81 passes is shown slightly elongated. When the projectile moves forward in the gun and the button i'irst engages the rear end of the rifling it will be forced rearward, relatively speaking7 and thereupon pressed inward. Or the screw may be loosened before the projectile is placed in the cannon, and the button shifted rearward by hand. Again, the 'shoulder or fin 35 may be made slight enough, so that while holding effectively enough for safety purposes it will be sheared or forced by the pressure of the rifling, without requiring the utton to be displaced rearward either automatically or manually.

As a further safety provision, a suitable shield 87 may be clipped over the shell so as to cover the button.

It will be understood that I do not limit myself to details of construction, which may obviously be varied. v

What is claimed as new is:

1. A projectile containing a secondary propelling charge, a trigger on the shell co operative with the interior of the cannon, and mechanical springoperated firing means of a relay nature in the shell controlled by said trigger.

2. A projectile containing a secondary propelling charge, a plurality of springurged firing members in the shell, detents therefor, the first member being adapted to release the detent of the second, and a trigger for releasing the iirst detent cooperative with the interior of the cannon.

3. A shell containing a secondary propelling charge and having a fiXeddriving band, and a trigger button for controlling the firing of said charge located in the driving band.

4:. A -projectile containing a secondary propelling charge, firing means including a trigger cooperative with the interior of the cannon, and safety obstructing means adapted to be forced when said trigger encounters the rifling of the cannon.

5. A projectile containing a secondary propelling charge, and firing means including a trigger coperative with the interior of the cannon, said trigger having a holding shoulder and being adapted to be shifted so as to clear said shoulder.

6. A shell containing a secondary propelling charge and having means for firing the same adapted to be operated by the ordinary rifling of the gun.

7. A shell containing a secondary propelling charge and having firing mechanism terminating in a trigger located in an opening in the side of the shell and adapted'to be pressed by the ordinary rifling of the gun.

SAMUAL SCOBLIONKO.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, I). C.

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