Patent GB-190912123-A (GB)
Title: Improvements in or relating to Retarding Apparatus for Guns having Differential Recoil.
Inventor: HAUSSNER KONRAD
IPC: F41A25/18
Filed: 1909-05-22
Granted: 1910-01-13
Abstract: 12,123. Haussner, K. May 22. Recoil apparatus.-Relates to differential-recoil guns, that is, guns which are fired during run-out, and consists in providing a stopping-device, consisting of a spring or hydraulic brake for taking up the strain brought on the carriage if the gun runs out beyond the firing-position when a miss-fire occurs, or when blank cartridges are fired. The runout gear may in some cases be adapted to act also as the stopping-device. Fig. 1 shows the gunbarrel A, which is held by a catch B in the recoil position, with the run-out spring C compressed between a part f of the upper carriage E, and a washer d bearing against a barrel-projection c, and the arresting-spring F bearing agaiost a fixed abutment i on the carriage E. When the gun runs out beyond the firing-position, the barrel-projection c passes through the abutment i and compresses the spring F, while the washer d is held by the rear face of the abutment i, thus preventing further expansion of the spring C. Fig. 5 shows a gun in the recoil position provided with a cylinder D which forms a hydraulic stopping-device and which is attached to a barrel-projection c. When the gun runs out, the spring C expands, the cylinder D is carried forwards, and a piston g, loosely mounted on a rod e attached to the carriage also moves forwards, being kept against a shoulder l on the cylinder D by fluid pressure. If the gun runs out beyond the firing-position, a collar d on the rod e arrests the piston g, and liquid is then throttled between the piston and grooves k in the cylinder D, thus bringing the gun to rest without shock. Figs. 8, 12, and 15 show arrangements in which the run-out gear also serves as the arresting-device. Fig. 8 shows a run-out spring C compressed between a collar f, on a rod e attached to the barrel projection c, and a plate m loosely mounted on the rod e and bearing against a ring l fixed to the carriage E. When the gun runs out beyond the firing position, the collar f passes through an opening k in the carriage E, and a collar g on the rod e pas es through the ring l and moves the plate m so as to compress the spring C against the carriage abutment k, and arrest the gun. The run-out gear shown in Fig. 12 consists of an india-rubber bar C, which, in the recoil position shown, is stretched between a barrel-projection d and a part h of the carriage E. When then the gun runs out beyond the firing-position, a collar c on the bar C is held by a fixed part g on the carriage, through which the barrel-projection d can pass, and a barrel-projection f at the same time engages with a collar e on the bar C and brings the gun to rest. The run-out gear shown in Fig. 15 is pneumatic, and is so arranged that, when the gun runs out beyond the firing-position, a piston-rod f is, by means of its collar e, held against a part c<1> on the carriage E by air-pressure, and simultaneously a projection k on the gun engages with the cylinder C, through a pair of spring plates h, with the result that air is compressed in the cylinder at the rear of the piston g which serves to arrest the gun.