| 摘要 |
1286853 Valves GUSTAVSBERGS FABRIKER AB 20 Aug 1969 [23 Aug 1968] 3586/72 Divided out of 1286852 Heading F2V [Also in Division F4] A valve for distributing an air flow from a duct 21 between ducts 42, 43 comprises bearings 60 fixed to the ducts, a shaft 61 movable axially and rotatably within the bearings and having lugs 63, 64 which engage in slots or grooves 65, 66 formed in sleeves 67, 68 rotatably mounted on the shaft 61, and flaps 51, 52 fixed to the sleeves 67, 68, respectively, whereby rotation of shaft 61 produces simultaneous rotation of both flaps without rotation of the flaps relative to one another, and axial movement of the shaft 61 produces rotation of the flaps towards or away from one another. |
