SELF-PROPELLED MINE STOPPING

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to the case, and m. b. used in underground mining, u0434u043bu00a0 u0438u0437u043eu043bu00a0u0446u0438u0438 10 1 / / / / / / / / / mines. the purpose is to reduce the labour intensity of the displacement u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 mine wire (w). is p 1 of the hollow elastic membrane (oh) 2 u0442u043eu0440u043eu043eu0431u0440u0430u0437 noah form with u043eu0441u0435u0432u044bu043c cross channel (to) 4. on the forming of the two met u0443u0433u043bu0443u0431u043bu0435u043du0438u00a0 3.in the 4 installed u0442u043eu043bu043au0430u0442u0435u043bu044c 5 with trenches and are spring loaded fingers 7. on 2, 8, and 9 is forcing his valves. under the action of excess u0434u0430u0432u043bu0435u043du0438u00a0 on 2 u043du0430u0434u0443u0432u0430u0435u0442u0441u00a0 and hermetically covers the development of 10. if necessary, move the p 1 to 4 are u0442u043eu043bu043au0430u0442u0435u043bu044c 5 and u0432u043eu0437u0432u0440u0430u0433 but u043fu043eu0441u0442u0443u0430u0442u0435u043bu044cu043du044bu043cu0438 u0434u0432u0438u0436u0435u043du0438u00a0u043cu0438 moving it to the desired location.movement of p 1 u043eu0431u0435u0441u043fu0435u0447u0438u0432u0430u0435u0442u0441u00a0 by u0434u0430u0432u043bu0435u043du0438u00a0 fingers 7 on the u0442u043eu0440u0446u043eu0432u044bu0435 recessions 3. 3). yu gao n4 of the os.