| 摘要 |
Apparatus for manipulating a tool for conditioning material within a high temperature furnace. The tool is secured in one end of an air-cooled boom while the other end of the boom is connected to a carriage that is arranged to move reciprocally within a horizontally-aligned gantry. The gantry, in turn, is adjustably supported upon a chassis mounted turntable that is capable of being driven over the ground by means of a pair of endless treads. The gantry is connected to the turntable by hydraulic lifters which independently raise or lower the gantry at two separate locations along its length to impart an expanded degree of maneuverability to the tool. Shock absorber means are also operatively associated with the boom to prevent the boom structure from being damaged in the event the tool becomes hung up in the furnace.
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