the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to u043au0438u043du043eu0442u0435u0445u043du0438u043au0435. u0433u0440u0435u0439u0444u0435u0440u043du044bu0439 mechanism contains two identical chains of the grapple tree u0437u0443u0431u044cu00a0 7 and 13 are synchronously u043fu0440u043eu0442u00a0u0433u0438u0432u0430u044eu0442 tape. after u043eu043au043eu043du0447u0430u043du0438u00a0 u043fu0440u043eu0442u00a0u0436u043au0438 film u043fu043eu0441u043bu0435u0434u043du00a0u00a0 u0444u0438u043au0441u0438u0440u0443u0435u0442u0441u00a0 u043au043eu043du0442u0440u0433u0440u0435u0439u0444u0435u0440u0430u043cu0438 20 and 26, united with the u0446u0435u043fu00a0u043cu0438 respective grips with control 18 and 24.u0431u043bu0430u0433u043eu0434u0430u0440u00a0 location with 7 and 13 on the opposite sides of a window movement film u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u0435u0442u0441u00a0 without bias. both the chain mechanism, well balanced, u0431u043bu0430u0433u043eu0434u0430u0440u00a0 which u0441u043du0438u0436u0430u0435u0442u0441u00a0 noise from the grapple tines. the only mechanism u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u0435u0442u0441u00a0 by u0432u0440u0430u0449u0435u043du0438u00a0 u043au0440u0438u0432u043eu0448u0438u043fu043eu0432 1 and 2. 1 il.
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