US932107A

US932107A - Recoil-gun with a fluid brake.

Info

Publication number: US932107A
Application number: US38684607A
Authority: US
Inventors: Franz Boeminghaus
Original assignee: Krupp Stahl AG
Current assignee: Krupp Stahl AG; Fried Krupp AG
Priority date: 1907-08-02
Filing date: 1907-08-02
Publication date: 1909-08-24
Anticipated expiration: 1926-08-24

Description

Patented Aug. 24, 1909. 2 SHEETS EHEE' I' 1.

F. BUMINGHAUS. REGOIL GUN WITH A FLUID BRAKE. APPLICATION I'ILBD AUG. 2, 1907:

Q aw k F. BUMINGHA S. REGOIL GUN WITH A FLUID BRAKE. APPLICATION FILED AUG, 2, 1907.

Z SHEETS-SHEET 2.

Patented Aug". 24, 1909.-

ANDREW a. swan m. Puomumumumsns. wAsnmeru UNITED STATES PATENT OFFICE.

FRANZ BoMINGHAUs, 0F E SSEN-ON-THE-RUHR, GERMANY, ASSIGNOR T0 FRIED. KRUPP AKTIENGESELLSCHAFT, or ESSEN-ON-THE-RUHR, GERMANY.

Specification ofLetters Patent.

Patented Aug. 24, 1909.

Application filed August 2, 1907. Serial No. 386,846.

To all whom it may concern: a 7

Be it known that I, FRANZ BoMrNGHAUs, a subject of the Emperor of Germany, and a resident of Essen-on-the-Ruhr, Germany, have invented certain new and useful Improvements in Recoil-Guns with a Fluid Brake, of which the following is a specification.

The present invention relates to a recoil gun with a fluid brake in which a part of the brake is adjustable to regulate the length of recoil.

Several embodiments of'the invention are shown in the accompanying drawings by the way of example.

Figure 1 shows those parts of one embodiment to which the invention relates, partly in side view and partly in vertical longitudinal section; Fig. 2 is a section on line 22, Fig. 1, looking from the left; Fig. 3 is a partial horizontal longitudinal section on line 33, Fig. 1, looking from above; Fig. 4 is a section on line lr l, Fig. 1, looking from the left; Fig. 5 shows a part of Fig. 2 but with some parts in other positions; Fig. 6 shows the other side view of Fig. 1, partly in section; Fig. 7 is a section on line 77, Fig. 6, looking from the left; Fig. 8 shows a part of another embodiment of the inven tion, in vertical longitudinal section and on an enlarged scale; Fig. 9 is a section on line 99, Fig. 8, looking from the left; Fig. 10 is a view, corresponding to that shown in Fig. 8, of a third embodiment of the invention, and Fig. 11 is an end view of Fig. 10, partly in section.

Reference will first be had to the embodiment shown in Figs. 1 to 7. The gun barrel A is mounted to slide on the track carrier B, which is swingingly mounted in the cradle C through the medium of horizontal trunnions which aremounted on arms I). The cradle is connected to the carrier B by an elevating mechanism and can, bymeans of a lateral training mechanism, be swung relatively to the mount D about the axis of the vertical trunnion dwhich is journaled in the mount. r

The training and elevating mechanisms, which are not shown in the drawings, may be of any suitable known construction.

The interior of the carrier B contains the fluidbrake E F and the recuperator spring L. The brake cylinder E is rigidly connected to the horn a (Fig. 1) of the breech of V the gun barrel, while the piston rod F is rotatably but non-slidably mounted in the cap 6 which closes the carrier. The cap 6 is connected to the track carrier in the known manner so asto be easily and rapidly attached to and detached from the carrier (Fig. 3). The brake piston consists of a pistonbody F rigidly connected to the piston rod F and a rotary disk G. For the passage of the fluid from one side of the piston to the other, passageways f and g are provided in the piston body F and in the rotary disk G. A projection 9 (Figs. 2 and 5) on the disk Gr engages in a curved groove 6 cut in the wall of the brake cylinder.

Within the carrier B a shaft H is journaled in bearings b on the carrier. The shaft H extends parallel to the piston rod F and can be operatively connected thereto by'means of a toothed sector J to be fitted on the squared portion 72. of the shaft H and a toothed wheel F which is non-rotatably mounted on the piston rod F. That end of the shaft H which nearest the breech of the gun barrel is provided with an arm K which projects through a slot 79 in the carrier B and in one of the trunnion arms I) and terminates in a ball pivot is which is journaled in one end 712/ of a link M which has its other end m formed with a bearing for a second ball pivot 12.. The pivot 02' is located on a bolt N secured in the cradle C.

clearly shown in the drawings and particular attention is to be paid'to the fact that both bolt joints (10 m and a m are eccentrically disposed relatively to the axis of the horizontal trunnions. i

In the track carrier B a second shaft P is arranged symmetrically to the shaft H in bearings (9 Toward the cap the shaft P terminates in a squared portion 39 (Figs. 3 and 4), which corresponds to the squared portionh' of the shaft H. On that end of the shaft P which is nearest the breech of the gun barrel is mounted a bevel wheel sector Q, (Figs. 2, 3 and 6), which projects through a slot (Fig. 6) in the track carrier Band meshes with a bevel wheel sector R journaled on the outer wall of the track carrier B. On the sector R is arranged an adjusting lever B (Figs. 3 and 6) which carries a catch 1 actuated by a spring 9*. The adjusting lever B and the shaft P can be secured in three different angular po- The arrangement of the partsK, M, N is 'sitions through the medium of the catch 1' vwill be automatically adjusted when the gun barrel is elevated, as will be shown in the following explanation, in which it will be assumed that the brake has the adjustment which is most clearly shown in Figs. 1 and 2. This adjustment gives the longest recoil, as the passageways g of the rotary disk G completely register with the passageways f of the piston body F. If now the gun barrel is elevated the arm K and the link M are carried along therewith and the link M swings about the center of the ball pivot n, as the cradle C does not partake of the movement of the gun barrel. During the elevating of the gun barrel, the center of the bolt pivot k therefore moves along the arc a:m (Fig. 1), that is to say, it moves toward the axis of the trunnions and this re sults in the arm K effecting a swinging movement in the direction of the arrow y (Fig. 2). During this proceeding a small movement takes place in the two ball joints (76 m and n m The turning movement of the arm K is partaken of by the shaft H and, through the medium of the gear J F, by the piston rod F which, together with the piston body F, turns in the direction of the arrow 2 (Figs. 2 and 4). If the gun barrel is elevated about 50, the arm K moves to the position shown in Fig. 5 in which the passageways g are about half covered by the piston body F and the recoiling parts of the gun will therefore come to rest when they have moved about half the way of the longest recoil.

It is evident that for each elevation between O and 50 a recoil corresponds which lies between the longest and that which is obtained by the adjustment shown in Fig. 5.

If it is desired to adjust the brake by hand, which for instance may be necessary when those parts of the automatic adjusting device that are located outside of the track carrier become damaged, the cap (2 is removed and the toothed sector J is taken oli the shaft H. In the position shown in Fig. 6 of the adjusting lever B, and if necessary after the piston rod F has been adjusted by means of a key placed on a square 7 of the piston rod, the sector J is then inserted on the squared portion 79 of the shaft P in such a manner that the tooth of the sector J that has a mark 2" (Fig. 4) enters into engagement with the gap of the toothed wheel F 3 that has a mark 7 (see the position of the sector J indicated in dotted lines in Fig. 4 and in full lines in Fig. 7). The marks 2" are arranged in such a manner that the brake is adjusted to the longest recoil when the catch 7 engages in the notches t of the adjustment arcs T and the tooth of the sector J having the mark 2" engages with the gap of the toothed wheel F having the mark 7; When the sector J has been placed on the squared portion p, the cap 6 is again placed on the track carrier D.

If it is desired to adjust the brake by hand to the recoil which results from the adjustment shown in Fig. 5, the locking device 9 t is released and the adjusting lever R is swung upwardly and the catch 1* brought into engagement with the notches t The turning movement of the'adjusting lever is partaken of by the piston rod F and piston body F through the medium of the gears R Q and J F 3 and the piston rod and the piston body turn in the direction of the arrow at (Fig. 7), that is to say, they turn in the same direction as when the gun barrel is elevated.

If the catch 1' is brought into engagement with the notches t the brake is adjusted to a recoil which lies between the longest recoil and that which is obtained by the adjustment shown in Fig. 5.

In the embodiment shown in Figs. 8 and 9, a non-rotatable square pin S for the toothed sector J is arranged on the inner wall of the track carrier B in lieu of the shaft P. Furthermore, several gaps between the teeth of the toothed wheel F have marks f, at which indications for several lengths of recoil are provided (not shown in the drawings). If the brake is to be adjusted by hand the cap 6 of the track carrier is first taken off and the toothed sector J is then removed from the shaft H. By means of a key inserted on the squared portion f* the piston rod F is then turned until, when the sector J is inserted on the pin S, the tooth of the sector J having the mark 2" engages with the gap of the toothed wheel F that has its mark f carrying the designation corresponding to the desired length of recoil. Vhen the sector J is inserted on the pin S the piston rod F is held against rotation.

In the embodiment shown in Figs. 10 and 11, the free end of the piston rod F carries a nut V which is prevented from turning on the piston rod by a key 1). The nut is retatably but non-slidably arranged in the cap 6 and has a dish-shaped head a and terminates in a square portion '0 Under the head 12. of the nut V a bolt IV is rotatab'ly and non-slidably arranged in the cap (9 The bolt IV has an extension to and is under the action of a spring 'w For the lateral extension w two notches I), b are provided in the cap 6 and three notches o are providedin a collar of the nut V. At the marks '0 designations for different lengths of recoil are provided (not shown in the drawings). Ifthe brake is to be automatically adjusted the bolt IV is given such an angular position that its lateral extension w engages in the notch 6 The piston rod with the nut V can then be turned through the medium of the shaft H and the gear J F If, however, the brake is to be adjusted by hand the key a is first'removed and the nut is turned loose, whereupon the cap 6 is removed from the track carrier B and the toothed sector J is-taken out. The cap 6 and the nut V are then again put in place and by means of a key inserted on the squared portion 12 the piston rod F is turned until the notch b registers with that one of the notches e which has the indication corresponding to the desired length of recoil. Finally the extension w of the bolt W is brought into engagement with the notch b and the aforesaid notch o*. The piston rod F is then held against rotation.

The dish-shaped head of the nut V protects the bolt WV and the notches provided for its cam w against injury from bullets and fragments of projectiles.

The invention is also adapted for guns in which another part of the brake is adjustable to regulate the length of recoil.

Having thus described the invention, what is claimed and desired to be secured by Letters Patent, is: V

1. In a barrel recoil gun, a fluid brake having a part adjustable to regulate the length of the recoil, a driving connection through which the adjustable part is adjusted, a part removable to uncouple the driving connection from the adjustable part; said adjustable part being capable of adjustment independently of the driving connection when uncoupled from said connection, and auxiliary means for regulating the adjustable part when said driving means is disconnected.

2. In a barrel recoil gun, a fluid brake having a part adjustable to regulate the length of the recoil,a driving connection through which the adjustable part is adjusted, having apart removable to uncouple the driving connection from the adjustable part; said adjust able part being capable of adjustment independently of the driving connection when uncoupled from said connection, and means for securing said adjustable part in a plurality of angularpositions when the part is adjusted independently of the driving connection.

3. In a barrel recoil gun, a fluid brake having a part adjustable to regulate the length of the recoil, a driving connection through which said adjustable part is automatically adjusted by the elevating movement of the gun barrel, said connection having a part removable to uncouple the adjustable part from the driving connection, and means for securing said adjustable part in a plurality of angular positions when the adjustable part is uncoupled from its driving connection.

4. In a barrel recoil gun, a fluid brake having a part adjustable to regulate the length of recoil, a plurality of driving connections, and means whereby either of said driving connections may be coupled to said adjustable part. to effect the adjustment of the part.

5. In a barrel recoil gun, a fluid brake having a part adjustable to regulate the length of recoil, means for eflecting the automatic adjustment of the brake during the elevation of the gun barrel, means to adjust the brake independently of the first named means and means whereby either of said adjusting means may be coupled to said adjustable part to effect the adjustment of the part.

6. In a barrel recoil gun, a fluid brake having a part adjustable to regulate the length of recoil, means for effecting the automatic adjustment of the brake during the elevation of the gun barrel, means to adjust the brake independently of the first named means, embodying a handle arranged in the proximity of the breech of the gun barrel and means whereby either of said adjusting means may be coupled to said adjustable part to effect the adjustment of the part.

7. In a barrel recoil gun, a fluid brake having a part adjustable to regulate the length of the recoil and a rotatable piston rod connected to said part, a pinion secured to the piston rod, a pair of shafts arranged on opposite sides of the pinion, means adapted to connect either shaft with the pinion, means connected to one of said shafts to effect the automatic adjustment of the brake, and means for adjusting the brake through the medium of the other shaft.

8. In a barrel recoil gun with fluid brake having a part adjustable for the purpose of regulating the length of recoil, means for automatically adjusting the brake during the elevation of the gun barrel, and a second means for adjustingsaid brake independently of the first named adjusting means, and having'a device constituting a shield.

The foregoing specification signed at Dusseldorf, Germany, this eighth day of July,

FRANZ BOMINGHAUS. In presence of- M. ENGELS,

ALFRED POHLMEYER.