DE141844C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

To return the mount or the pipe to the firing position after the return has been completed air or spring accumulators are often used. The feathers will when the carriage or the pipe is returned, the force is compressed the same should then bring the barrel back into the firing position. The facility for this is usually made in such a way that the springs are in the mount built in, which the pipe in the firing position even at the greatest elevation holds and does not let it slide back. When firing, there is now an even greater compression the spring takes place and there is finally a final pressure after the return has been completed, which by far exceeds the force which is necessary to bring the barrel back into the firing position.

As a result, the pipe will try to assume a great forward speed and this must be sought to prevent by the so-called advance brake. at These facilities must be stored in the spring unnecessary force, and the rest The consequence of this is that a spring required for this is a larger one that should not be underestimated Weight gain conditional.

In order to keep these evils, and especially the weight of the pen, to a minimum bring what is particularly desirable in wheel mounts, is according to the present invention to achieve a constant respectively.

almost constant power output when the pipe or the mount with spring and Air accumulators for guns applied by the returning barrel BEZW. the Carriage is connected to the spring accumulator by translation members in such a way that in the same ratio as the spring tension increases, the translation between the pulling one Force on the tube and the spring force is gradually changed so that on the tube an almost constant force acts on the entire return. With the flow of the pipe BEZW. the carriage then, on the other hand, finds a complete translation from the spring through the translation or almost even power output instead.

Embodiments of this device come with a cable drive in a helical or spiral shape (conical-spiral) shaped pulleys or, in the case of gear drives, worm-shaped or spiral-shaped (conical-spiral-shaped and spiral-shaped) designed gears in use.

In the drawing is in Fig. 1 and 2, 3 and 4, the use of pulleys in different Design shown.

On the returning tube α , the rope b is attached at c and goes over the roller d, which latter is mounted on the brake cylinder e, which remains stationary when the shot is fired. From here the rope b goes to the helical pulley f and is attached to the same at g. The pulley f itself is keyed on the shaft h. A second, helical one is firmly seated on this shaft h

Claims (3)

Sheave z provided with rope grooves, on which one end of the rope k is attached, while the other end is connected to the spring piston / against which the pretensioned springs mm lie. The mode of operation of this device is now as follows: During the return movement, the tube α takes the rope b with it and consequently also moves the helical pulley f, in that the rope unwinds from the same. The lever arm increases continuously until the unwinding of the rope b has ended as a result of the return movement. In the meantime, the rope k winds up on the sheave / and thus constantly compresses the springs mm. The dimensions of the helical shape of the pulley / are chosen so that the radius of the respective winding point is in relation to the respective tension of the spring. When the spring expands again after the tube has returned, the reverse process takes place, ie the radius of the respective unwinding point on the helical pulley f decreases in the same ratio as the spring tension decreases, and so it is achieved that the tube on is moved with almost constant force over the entire distance. In Fig. 3 and 4, a spiral pulley η is also used, which is directly connected to a flexure spring ο in connection. Another embodiment is illustrated in FIGS. The rack p is located on the tube α , which sets the spur gear q in rotation when it returns. On the shaft u, on which the spur gear q is keyed, sits the worm-shaped gear r - a conical-spiral-shaped spur gear, as it were - displaceable, but not loosely arranged and thus makes the same revolutions as the spur gear q. The helical gear r engages again in the spiral - spiral lies in one plane - gear s , which is connected to the flexure spring t . The mode of operation and the technical effect is the same as in the previously mentioned types of execution. Instead of creating a constant pulling force to advance the pipe, you can you also choose the constantly changing translation so that you start at the beginning of the preroll has a slightly greater force than at the end and vice versa, thus defining the character of the invention is no more adversely affected than when using the present method in the case of air accumulators, which take the place of the spring accumulators. Sponsorship τ claims: ι. Device for achieving a constant BEZW. almost constant power output BEZW at the flow of the pipe. the mount in spring and air accumulators for guns, characterized in that between pipe respectively. Carriage and the accumulator translation links from soleher Condition are turned on in the same proportion as the voltage the spring respectively. the air changes, the translation changes too. 2. Embodiment of the device according to claim i, characterized in that that between the pipe and Carriage and the accumulator have a helical design Pulley is switched on. 3. Embodiment of the device according to claim 1, characterized in that that instead of the pulley, helical and spiral shaped gears come into use. 1 sheet of drawings.