| 摘要 |
<p>1,179,113. Endless conveyers. UNDERGROUND MINING MACHINERY Ltd. 14 April, 1967 [15 April, 1966], No. 16669/66. Heading B8A. [Also in Division E1. A loading machine moves along the whole of a mineral face AB, and back to an intermediate point T of the face, while a conveyer moves directly to T in the same period of time. As shown, AT = ¢ (AB). In modifications, AT = 1/3 (AB) (Fig. 2, not shown), and AT = 2/3 (AB) (Fig. 3, not shown).</p> |
