| 摘要 |
1. A disconnectable joint of a coal cutting machine arm with a servo-motor which swings that arm in vertical plane, characterised in that a fixing eye (1) located between the body walls (7) of the arm (8) of the machine is attached at one end by a pin directly to the arm body (8), and at the other end indirectly via a link (12) located between the walls (7) of the arm body.<IMAGE>
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