US1204950A - Projectile. - Google Patents

Description

W. S. CRANE.

.PROJECTILE.

APPucAloN man 11111.12. 191s.

. Patented mm1/1,1916.

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WILLIM S. CRANE, OF RANDOLPH, VERMONT.

rnoJEoTILE.

` Specication of Letters Patent.

Patented Nov. 14, 1916.

Application led January 12, 1916. Serial'No. 71,701.

i To all whom it may concern Be it known that I, WILLIAM S. CRANE, a

citizen of the United States, and a resident of Randolph, in the county of Orange and .State of Vermont, have invented' a new-and Improved Projectile, of vwhich the following is a full, clear, and exact description.

My invention has for its object to provide a projectile which is especially valuable for use against wireless stations, barbed wire and other entanglements, and for destroying air craft.-

The projectile is provided with a body having arms pivoted thereto for extending outwardly when freed, to engage and destroy wireless stations, entanglements and air craft, novel means being used to hold,

the arms close to the body, and for freeing and extending the arms relatively thereto.

Another object of the invention is to so construct the means for holding thearms close to the body, that they may be drawn -out of operative position, the arms being thereby freed, so that they will move outwardly immediately upon `the projectile leaving the gun.

Still other objects of the invention will appear in the following specification in which the preferred form of my invention is disclosed.

Reference is had to the accompanying drawings, in which similar reference characwhichters denote similar parts in all the views, in

Figure 1 is a side elevation of my invention; Fig. 2 is a sectional View of Fig. 1; Fig. 3 is a sectional view on the line 3 3. of Fig. 2; Fig. 4 is a sectional view on the line 4-4 of Fig. 2; and Fig. 5 is a sectional view of one of the arms.

By referring to the drawings it will be seen that the projectile has a body 5 in which there are lon itudinal .grooves 6, preferably three in num er,- for receiving arms 7 which are pivoted to the -projectile body 5 by pins 8, the arms 7 being normally disposed in the grooves 6, as illustrated in Fig. 1 of the drawings, andthe teeth 9, with which the arms 7 are provided, being disposedin a chamber 10 in the projectile and engaged by an annular rim 11 on a plunger 12 disposed for moving in the chamber 101 This plunger 12 has a stem 13 extending in a guideway 14, and is surrounded by a. spring 15 which -abuts a shoulder 16 in the projectile at one arms 7 in their grooves 6 and against the ac-V tion of springs 18, which serve to extend the arms 7 when the teeth 9 are freed from the plungers rim-11.

It will be seen that with the construction which has been described, the projectile may be introduced into ay gun and be fired, and that the arms 7 will remain in their grooves 6 until the plunger 12 moves forwardly. As a means of moving the plunger forwardly at a predetermined time, the rear of the projectile is sealed. by a plug 19 which has a screw-thread meshing with a screw-thread 20 in the body of the projectile, this plug 19 carrying a fuse 21 leading to a detonating'cap 22, .it being possible to.

adjust the length of the fuse 21 so that the cap 22 will be exploded after a prede-l termined interval has elapsed 'after the gun has been fired, so that the gases lfrom the cap 22 at a certain period in the projectiles flight will expand, and the pressure will act against the plunger 12 toY move the plunger 12 forward, thereby freeing the arms 7, so thatV they may be lthrown outwardly by the leaf springs 18, these leaf springs 18 being secured by means of screws 23 yto the body 5 of the projectile. The movement of the arms 7, when their teeth 9 are freed from the annular rim 11, is limited by their shoulders 24, which strike against the seats 25 in the body 5, to check the further outward movement of the arms 7, the said arms 7 being preferably provided with rows of teeth 26 at their forward edges for striking and tearing 'wireless apparatus, barbed wire, and other entanglements, and air craft.

In certain cases it may be important that the arms 7 move outwardly relatively to the body of the projectile immediately on the projectile leaving the gun; and in order to accomplish this result, I provide the stud 17 on the plunger 12 with a bayonet slot 29, in which is disposed a pin 30 which extends inwardly from the body of the casing 5. It will therefore be seen that after the plug 19 is removed, the plunger may be pressed against the resiliency of the spring 15 by the insertion of a screw driver in a slot 31 in the the plunger 12, and the.

.the said springs 18 will serve to throw the arms 7 outwardly. f

The body 5 of the projectile is preferably provided with a band 27, which is disposed in a groove may be riied as desired to give the projectile the necessary rotary movement to assure its correct position duringlight.

My projectile is constructed of very few and simple parts, and the arms 7 are freed by means which can not be damaged by the firing of the projectile, and the said arms are moved. outwardly by simple means which are certain in their operation.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A projectile having a chamber and longitudinally extending .grooves in its outer sides, arms normally disposed inthe grooves `and pivoted at their rear ends to the projectile, there being an axial guide- Way extending from the chamber, a plunger movably disposed iny the chamber and normally disposed in its rear position where it engages the arms adjacent their pivots, thereby holding the arms inclosed position, resilient means in the axial guideway for holding ,the plunger in normal position, and means for moving the plunger forwardly.

2. A rojectile having a chamber and longitudinally extending grooves in its outer sides, arms normally disposed in the grooves and pivoted at their rear ends to the projectile, there being an axial guideway extending forwardly in the projectile from the chamber, posed in the chamber and having a stem disposed in the guideway, the plunger being normally disposed rearwardly where it engages the arms adjacent their pivots for holding the arms in closed position, a'spring disposed in the guideway around the stem for holding the plunger in its rear position,

28 Yin the body 5, and which' forwardly in the projectile a plunger movably disand means for moving the plunger for wardly.

3. A projectile, a plunger movably disposed in the projectile, an arm articulated to the projectile and normally held in a predetermined position relatively to the projectile for engagement by the plunger, the arm being free to lmove relatively .to the projectile upon the movement of the plungerv to a predetermined position relatively to the projectile, and means for locking the plunger out of engagement with the arm.

4. A projectile having a chamber, an arm articulated to the projectile, a plunger no1'- mally engaging the arm to hold the arm in position relatively to the projectile and movable under an increase of pressure to free the arm for movement relatively to the projectile, and means on the projectile against which the plunger may be moved for holding the plunger out of contact with the arm.

5. A projectile having a chamber, an arm articulated to the projectile, a plunger normally engaging the arm to hold the arm in position relatively to the projectile and movable under an increase of pressure in the chamber to free the arm for movement relatively to the projectile, the plunger having a bayonet slot, and a pin .on the projectile disposed in the bayonet slot, so that the plunger may be moved out of engagement with the arm, and may be turned, thereby locking the plunger in inoperative position.

6. A projectile having a chamber, an arm articulated to the projectile, a plunger nor-' mally engaging the arm to hold the arm in position relatively to the projectile and movable under .an increase of pressure to free the arm for movement relatively to the projectile, a spring for holding the plunger yieldingly in engagement with the arm, the plunger having a bayonet slot, anda pin on the projectile disposed in the bayonet slot, so that the plunger may be moved against the resiliency of the spring and out of engagement with the arm, and may be turned, thereby locking the plunger in inoperative position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.v

J. C. LARsEN, G. H. EisIsLrE.

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