Movement 128
AnimatedOriginal 

128. A continuous rotary motion of the shaft carrying the three wipers produces a reciprocating rectilinear motion of the rectangular frame. The shaft must revolve in the direction of the arrow for the parts to be in the position represented.

免费欧洲美女牲交视频_免费人成在线观看网站_免费岛国片在线观看x片喷水