Abstract: Provided is an overhead conveyor that conveys a carrier loaded with a workpiece. The carrier includes a primary carrier, and a secondary carrier having a hanger that supports the workpiece. The overhead conveyor includes a rotation drive device that rotates the secondary carrier around the vertical axis, a friction brake device that makes the secondary carrier non-rotatable with respect to the primary carrier, and a rotation positioning device that is disposed on a ground side, and positions the secondary carrier at a predetermined rotation end position. The friction brake device, in an operating state thereof, brings a friction member included in a main body provided in the primary carrier, into press-contact with a brake member provided in the secondary carrier.

Abstract: A compression type crusher which is adapted to compressingly crush feed material in a crushing chamber formed between movable and stationary crusher plates, the crusher being characterized in that the crushing chamber is shaped such that at least one of the side walls of the crushing chamber defined by the movable and stationary crusher plates inclines away from a vertical line in an inlet region of the crushing chamber and approaches the vertical line in an outlet region of the crushing chamber.