| 摘要 |
<p>In a conveyor wherein load carrying trolleys are normally propelled along a fixed trolley track by pusher dogs which depend from an endless driven chain disposed above such track there is provided a transfer unit for moving load carrying trolleys along any section of said trolley track above which there is no endless chain. The transfer unit, which is supported for movement along a path parallel with any such section of track includes reversible drive means whereby a drive may be imparted thereto in either direction and a laterally directed arm which is adapted to project into the path of any load carrying trolley present on such section of track and is effective on movement of the unit in one direction to propel such trolley. It is also envisaged that the transfer unit will be employed for transferring load carrying trolleys from the trolley track of one conveyor to the trolley track of a second conveyor and in such a case the trolley tracks of the two conveyors will be interconnected by means of a transfer track and the transfer unit will be arranged to move back and forth along a path parallel to said transfer track.</p> |
