US1034171A - Recoil mechanism for guns. - Google Patents

Description

Patented July 30, 1912.

4 SHEETS-SHEET 1.

K. VLLBR.

BBGOIL MEGHANISM FOR GUNS.

APPLIUATION FILED OGT.18, 1911.

l I I I I I I I I vI/mJ 155555 K.I VLLER.

BEGOIL MEGHANISM FOR GUNS.

APPLICATION FILED 00T. 18, 1911.

1,034, 1 7 1 Patented July 30,1912.

K. VLLER.

REGOIL MEGHANISM FOR GUNS.

AHLIGATION FILED 00T. 18, 1911.

1,034,171 Patented July 3o, 1912.

4 SHEETS-SHEET 3.

v K. VD'LLER.

RECOIL MEGHANISM FOR GUNS.

APPLICATION FILED 0GT.18, 1911.

1,034,171 Patented July 3o, 1912.

4 SHEETS-SHEET 4.

Ihre

mTrJ ESSES IVETUR coLuMBlA PLANOGRAPH CD.,wAsH1NaTuN, 6.7?.

UNTFD STATES PATENT FFQF.

KARL VLLER, 0F DUSSIEZIJORF,l GERMANY.

RECOIL MECHANISM FOR GUNS.

To all whom t may concern Be it known that I, KARL VLLnn, a sub- ]ect of the German Emperor, residing at l2 Scharnhorststrasse, Dusseldorf, Germany, have invented certain new and useful Improvements 1n Recoil Mechanism for Gams;- and 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.

The present invention relates to guns in which the elevation is changed during the recoil for the purpose of charging and differs from previously known arrangements in that the pin, which by engaging in a curved guide alters the inclination of the barrel during the recoil. is done away with. In this way the barrel is swung more smoothly and the jar on the cradle is lessened. According to the invention, cylinders with movable pistons are arranged between the elevating gear and the cradle slide, and the relative motion of the pistons and cylinders during the recoil causes the rear end of the slide to be raised. In this way the pin attached to the barrel and the curved guiding groove are replaced by very simple means subject to very little wear and tear.

The accompanying drawings show several constructions for carrying out the invention.

Figure l is a side view partly in section, Fig. 2 a rear view7 Fig. 3 a view similar to Fig. l with the parts in position at the end of the recoil, of one construction. Figs. 4 and 5 are respectively a side view partly in section and a rear view of a modied' construction. Figs. 6 and 7 are longitudinal sections of other modifications.

In the construction shown in Figs. l to 3,

between the toothed segment a of the ele' vating gear and the slide 5, two lifting cylinders c with movable pistons fZ are arranged and are linked tothe slide and also to the elevating gear. These cylinders are raised during the recoil of the barrel, as soon as the coupling e between the slide and the elevating gear is released during the recoil of the barrel rlhe lifting ofthe cyl- Specication of LettersPatent.

Application led October 18, 1911.

Patented July 30, i912.

Serial No. 655,259.

inders vis elfected by means of pistons g working in cylinders t', whose piston rods are fastened to projections L of the barrel, and which during the recoil of thel gun force fluid through the hollow pivot pins Z into the cylinders Since the toothed segments of the elevating gear are locked, the cylinders c and with them the rear end of the cradle slide and the gun barrel are raised by the fluid forced into the cylinders c throughl the angle oc. In order that this change of elevation can only take place if the coupling e between theI elevating gear and the slide is fully released, the pistons g in the compression cylinders z' are displaceable on their piston rods and in the normal position shown in Fig. l are so disposed relatively to disks 7c liXed to the end of the piston rod, that the piston rodsV at irst move during the recoil without taking the pistons g with them. Then the movement has been suffi cient to completely release the coupling' e, the disks 7c take with them the pistons g (Fig. 3)' and the fluid is then forcedy into the cylinders o. In order that the normal position can be again assumed when the pistons g return (Fig. l), springs m are inserted between them and the disks lo.

The operation of the modied construction. shown in Figs.. 4L and 5 is the same as that described in connection with Figs; 1 3. An additional device is however provided, by which any change in the elevation of the gun barrel can be prevented during the recoil. For thispurpose both sides of the piston d are connected together by a channel `m, in which a three-way stop cock n is in- A connection leads from the three If serted. way cock to the compression cylinder z'.

the three-way cock is in the position shown in- Fig. et, the inclination of the barrel and slide will' not be altered during the recoil,v lsince the fluid will be forced out of the cylinder z'f into the lower side of the piston Z and there will be no relative movement of the piston and the cylinder. If the threeway cock n is turned' through 90o in the 'clockwise direction, the liuid is forced from the cylinder z' through the channel m tothe upper side of the piston Z andV causes a change in the elevation of the gun barrel during the iecoil. The three way cock n can also be connected with the elevating gear, so that at a given elevation of the barrel it is automatically placed in the position, in which it allows the fluid access to the upper side of the piston d. If it is Ydesired that the barrel shall remain stationary at the end of the recoil, at the elevation it has assumed in the rear position, the stop coclr can be so arranged that by means of amember providedat the recoiling parts, preferably in the form of a pin or projection, the iiuid can not return into the compression cylinder. In this way the lifting cylinder can act at the same time as a locking member for the parts turning about the trunnions; For safety a special brake is also provided coinprisiiig a toothed rack on the cradle slide and a spring locking bolt.

In the construction shown in Fig. 6, the compression cylinder also acts as a brake cylinder. The cylinder 0, which is connected to the cylinder c, is divided by a constriction p into two parts and the piston rod'q is cone shaped at the after end to which the piston r is attached. The piston Z is pushed toward the upper part of cylinder 0 by a spring s and is so connected with the segment a that under the influence of the fluid forced from the cylinder 0 into the cylinder c, it can be moved a certain distance, before it is firmly attached to the segment @by the connection t and the change of elevation of the barrel is then brought about by the lifting of the cylinder c. During this free part of the stroke of the piston the coupling between the slide and the elevating gear is released. On the recoil the braking is effected by the gradual restriction of the opening in the constriction y? by the cone shaped piston rod Q. If the spring 8 is made sufficiently strong, no special return spring need be fitted, since this spring can serve to return the gun barrel.

In the construction shown in Fig. 7 the brake cylinder and the compression cylin der are placed together but completely separated by a dividing wall fu. The part 'v of the cylinder acts as a brake and is provided for this purpose with channels w, through which the iiuid passes `to the other side of the piston y. The part z of the cylinder is constructed in the same way as the com-` pression cylinder 'i in Figs. 1-3. The action of the compression fluid in the cylinders 0 is also the saine as in the iirst construction.

I claim as my invention:

l. In a recoiling gun the vcombination with a sliding barrel, and a pivoted cradle therefor, of means for automatically raising the rear end of the barrel during the recoil comprising a cylinder and piston, and means for forcing a uid into said cylinder to effect a relative movement between the piston andV its cylinder.

2. In a recoiling gun, the combination with a sliding barrel, and a pivoted cradle therefor, of means for automatically raising the rear end of the barrel during the recoil comprising a cylinder and piston, and

means for forcing a fluid into said cylinder to effect a relative movement betweenV the piston and its cylinder, such last mentioned barrel.

.75 means being operated by the recoil of 'the 3. In a recoiling gun, the combinationVv with a sliding barrel, a'pivoted cradle therej Y for, elevating mechanism for turning the cradle onits pivot, and means for coupling 1 Y the cradle to said elevating mechanism, of

a cylinder secured to said cradle, a piston in said cylinder having a relatively fixed y support, a second cylinder communicating: with the first cylinder, ya piston in saidr second cylinder connected to said barrel, and

means for preventing the last mentioned el piston from becoming effective duringV theVr recoil of the barrel unt-il the cradleis iinf coupled from the elevating mechanism.

4. In a recoiling gun, the combination with a. sliding barrel, apivoted cradle therefor, elevating mechanism for turning the Y cradle on its pivot, and means forA coupling the cradle to said elevating mechanism, of

a cylinder secured to said cradle, a rpiston in said cylinder having a relatively fixed'r support, a second cylinder communicatingV with the rst cylinder, a piston in said second cylinder, a rod upon which said piston is loosely mounted, said rod being con,-

iiected to saidbarrel, a head on said rod.,Y Y and a spring interposed between said head and piston.

5. In a recoiling gun, the combination with a'sliding barrel, a pivoted cradle there-'ifor and elevating mechanism for turning the cradle on its pivot, of a cylinder affixed to the cradle, a piston within saidY cylinder having its rod connected to a relatively fixed part, a coupling between the cradle and the f elevating mechanism, a second cylinder in communication with the first mentioned' cylinder, apiston in said second cylinderhaving its'rod connected tothe barrel, and means for controlling the communication between said cylinders, to cause or preventl a relative movement between the rst mentioned cylinder and its piston during the re-Y coil. Y

6. In a recoiling gun, the `combinationl with a sliding barrel, a pivoted cradle there'- for and elevating mechanism for turningA the cradle on its pivot, of a cylinder aiiixed ndex', a piston n said second cylinder havspecification in the presence of two subing its rod connected tl the barrel, said rst Serbing Witnesses. mentioned c linc er avnofV assaveways leading to ogposte ends fzzompthe bsecond KARL VOLLER' cylinder, and a, three-Way valve controlling Witnesses: such passageways. C. TIMWISSEN,

In testimony whereof, I have signed this W. TACK.

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

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