ISOLATORS

摘要

In an isolator there is used a combined blade and flap arm assembly in which the side members (22) of the blade frame are extended (22a) to attach to an operating shaft (21) to act as the load bearing members of the system. Preferably insulation (37) is provided on one side only of a blade plate (33) which is attached to a generally channel-shaped blade frame (31), by welding the blade plate to the frame in a flexible manner. The blade design according to the invention will accept differential expansion due to operational conditions while retaining the lightest possible construction.