US1200691A - Apparatus for firing or discharging explosive projectiles. - Google Patents

Description

F. P. AYLWIN.

APPARATUS FOR FIRING 0R DISCHARGING EXPLOSIVE PROJECTILES.

APPLICATION FILED APR-6| 916.

Patented Oct. 10, 1915.

q l \5} M E 47 7//// 69 4 a i A z 1 1 H n A WW w w 2 m k I FRANCIS P. AYLWIN, OF LONDON, ENGLAND.

APPARATUSFOR FIRING OR DISCHARGING- EXPLOSIVE PROJECTILES.

Specification of Letters Patent.

Katented Oct. 10, 1916.

Application filed April 6, 1916. Serial No. 89,495.

To all whom it may concern:

Be it known that I, FRANCIS PERCIVAL AYLWIN, residing at 11 Haymarket, London, W England, have invented certain new and useful Improvements in and Relating to Apparatus for Firing or Discharging Explosive Projectiles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to apparatus for discharging projectiles by means of a pressure fluid such as compressed air and has for its object the provision of an improved breech arrangement whereby the projectile is inserted in the side of the discharge tube or barrel in order that the fluid pressure reservoir may be directly attached at the end of such barrel and if necessary be formed as an extension of the same.

In theaccompanying drawings: Figure 1 is a sectional elevation showing the breech open. Fig. 2 is a section on the line yof Fig. 1. Fig. 3 is a section similar to Fig. 2 but showing the breech closed. Fig. 4 is a section on the line 2-2 of Fig. 1 looking in the direction of the arrows, and Fig. 5 is a sectional elevation of a modified construction.

The breech is formed by cutting out a pertion 100 of the side of the discharge tube or barrel 1 at the rear end thereof, the cut away portion being surrounded by a sleeve 98 having an opening 99 therein which coincides with the cut away portion 100 of the barrel. when the breech is open, see Figs. 1 and 2,

while upon rotation of said sleeve a sliding block 101 acting as a breech closure is enabled to enter the cut away portion of the barrel under the influence of springs 120 and take up the position shown in Fig. 3.

i The sliding block 101 is provided with an operating handle 102 having a pin 103 secured thereto and with an interrupted threaded portion or projection 104 adapted to engage correspondingly threaded portions in a boss 105 formed on a recessed portion 106 of the sleeve 98 which receives the sliding block 101 when the breech is opened.

The sleeve is provided with stops 160 which are capable of partial rotation between stops 107 on the barrel 1 which limit the movement of said sleeve and give definite open and closed positions of the sleeve breech. in order to secure a tight joint between the sleeve and the barrel, recesses 108 are formed at each end of the sleeve adapted to contain fibrous packing rin s or washers 109 while longitudinal strips or packing 110 are also provided.

To enable the screwed projection 104 of the lever 102 to be adjusted so that the screw threads may readily engage the threads 1n the boss 105, the pin 103 is screwed at its outer end 111 into the projection 104 while its inner end is formed with a curved head 112 which is housed in a corresponding recess 118 formed in the block 101. In the top of the projection 104 is a grub-screw 114 which when the screw threaded portion 104 has been adjusted on the pin 103 serves to hold the portion 104 in its adjusted posi tion. To prevent the spindle 103 from turning the head 112 is recessed to engage with a projection 115 in the recess 113.

instead of the sleeve making half a revolution on the outside of the barrel between two definite stops, to register both the open and shut positions, it may be made to slide on the barrel longitudinally between two stops, thus giving both an open and shut position.

Fig. 5 shows a modified construction or breech arrangement. In this case a sleeve 57 is employed having anopening therein which coincides with a cut away portion of the discharge tube or barrel when the breech is open in a manner similar to that already described. To close the breech the sleeve 57 is given a partial rotation allowing a sliding block 58 to enter the cut away portion of coincide with the cut away portion of the barrel 1 and allow the projectile 63 shown in dotted lines in Fi 4 to be loaded into the barrel 1 where it bears against a. pad 6% of india rubber or like material. Packing rings 65 are utilized to secure a tight joint between the sleeve 57 and the barrel 1 I claim 1. An apparatus for discharging projectiles by means of fluid pressure comprising in combination a barrel having a breech opening in the side thereof toward the rear end, a sleeve mounted to turn on said barrel over the portion containing said opening, and having an aperture for registering with said breech opening when loading, stop .means for defining the movement of said sleeve, and a block for closing said opening carried by said sleeve, the limits of movement of said sleeve as defined by said stop means giving definite open and closedpositions relative to said breech opening.

2. An apparatus for discharging projec tiles by means of fluid pressure comprising in combination a barrel having a breech opening in the side thereof toward the rear end, a sleeve mounted to turn about said barrel at the portion containing said opening, stop means for defining the movement of said sleeve, and a block for closing said opening carried by said sleeve, the limits of movement of said sleeve defined by said step means giving definite open and closed positions relative to said breech opening, said sleeve having an enlargement therein within which the said block slides, and having an aperture therein adapted to register with the opening in the barrel forthe purpose of loading.

3. An apparatus for discharging projectiles by means of fluid pressure comprising in combination a barrel having a breech opening in the side thereof toward the rear end, a sleeve mounted to turn about said barrel at the portion containing said opening, stop means for defining the movement of said sleeve, and a block for closing said opening carried by said sleeve, the limits of movement of said sleeve defined by said stop means giving definite open and closed positions relative to; said breech opening, said sleeve having an opening therein to coincide with the breech opening for the purpose of loading.

4:. An apparatus for discharging projectiles by means of fluid pressure comprising in combination a barrel having a breech opening in the side thereof toward the rear end, a sleeve mounted to turn about said barrel at the portion containing said opening and having an aperture therein adapted to register with said breech opening for the purpose of loading. stop means for defining the movement of said sleeve, a block for closing said opening carried by said sleeve, the limits of movement of said sleeve defined by said stop means giving definite open and closed positions relative to said breech opening, and springs for forcing said block into the breech opening when the sleeve is in position to close the breech.

5. An apparatus for discharging projectiles by means'of fluid pressure comprising in combination, a barrel having a breech open ing in the side thereof toward the rear end, a sleeve mounted to turn about said barrel at the portion containing said opening and having an aperture therein adapted to register with said breech opening for the purpose of loading, stop means for defining the movement of said sleeve, a block for closing said opening carried by said sleeve, the limits of movement of said sleeve defined by said stop means giving definite open and closed positions relative to said breech opening, and a breech blocking gear comprisinga pin connecting withsaid block, and anoperating handle fixed to said pin, said pin having an interrupted thread thereon and said sleeve having corresponding threads thereon adapted to lock the breech.

6. An apparatus for discharging projectiles by means of fluid pressure comprising in combination, a barrel having a breech opening in the side thereof toward the rear end, a sleeve mounted to turn about said barrel at the portion containing said opening and having an aperture therein adapted to register with said breech opening for the purpose of loading, stop means for defining the movement of said sleeve, a block for closing said opening carried by said sleeve, the limits of movement of said sleeve de fined by said stop means giving definite open and closed positions relative to said breech opening, and a breech blocking gear comprising a pin connecting with the breech block, and an operating handle fixed to said pin, said pinhaving an interrupted thread thereon and said sleeve having corresponding threads thereon adapted to lock the breech, said block having a recess therein, said pin having a curved head engaging in said recess, and a grub screw for adjusting the relation of said block to said pin.

7 Anapparatusfor discharging projectiles by means of fluid pressure comprising in combination, a barrel having a breech opening-in the side thereof toward the rear end, a sleeve mounted to turn about said barrel at the portion containing said opening and having an aperture therein adapted to register with said breech opening for the purpose of loading, stop means for defining the movement of said sleeve, a block for closing said opening carried by said sleeve, the limits of movement of said sleeve defined. by said stop means giving definite open and closed positions to said breech opening, 00- In testimony whereof I afiix my signature axial pressure packing rings carried by said in presence of two witnesses.

sleeve at each side of said breech opening, FRANCIS P. AYLWIN. and longitudinal strips of packing between Witnesses:

the sleeve and the barrel to render the breech B. W. BOSANQUET,

air tight during the discharge of a projectile. A. R. J. RAMSEY.

Copies of this patent may be obtained for five cents each, by addressing the commissioner of Patents. Washington, D. 0."

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