Abstract: The invention provides a mobile crushing apparatus which is compact and light, has an improved assembling property and maintaining property, and has an improved operability for changing to a traveling attitude. Accordingly, in the apparatus provided with a crusher (10) crushing rocks or the like and a supply conveyor (41) for supplying a material to be crushed, which are mounted on a frame (2), the supply conveyor is provided in one side in a width direction of the frame, and an input shaft (16) for inputting a driving power to the crusher is provided in another side in the width direction of the frame. A power source (30) for the crusher and the supply conveyor is arranged in a stand (5) so as to constitute a power unit (4) and mounted to the frame via the stand.

Abstract: The invention provides a mobile crushing apparatus which is compact and light, has an improved assembling property and maintaining property, and has an improved operability for changing to a traveling attitude. Accordingly, in the apparatus provided with a crusher (10) crushing rocks or the like and a supply conveyor (41) for supplying a material to be crushed, which are mounted on a frame (2), the supply conveyor is provided in one side in a width direction of the frame, and an input shaft (16) for inputting a driving power to the crusher is provided in another side in the width direction of the frame. A power source (30) for the crusher and the supply conveyor is arranged in a stand (5) so as to constitute a power unit (4) and mounted to the frame via the stand.

Abstract: A change-over apparatus of exhaust gas for use with a vessel of a dump truck or the like comprising a box-like housing having an inlet for the exhaust gas and first and second outlets, a first pipe mounted in the first outlet and open to the atmosphere, a second pipe mounted in the second outlet, a third pipe telescopically mounted on the second pipe and movable between a raised position where the vessel is in its dump position and a lowered position where the vessel is in its carry position and in which the second outlet is brought to a communication with a plurality of hollow ribs integrally formed with the vessel, and a shutter plate for selectively closing the first and second outlets in response to the movement of the third pipe.