| 摘要 |
<p>This invention is concerned with endless belts and is concerned to provide means by which pressures acting inwardly on the belt (4) can be resisted throughout a reach A-B. Such belts action face-to-face can be used as haul-off apparatus. To hold the belts (4) in engagement with the material being moved by them, a subsidiary belt (15) is contained within each. The belt (4) is provided with teeth (6) on its inner surface, and these engage with a roller (8) in driving the belt. Teeth (6) engage with teeth (6a) on the outer surface of the subsidiary belt (15), and this engagement drives the subsidiary belt. Rollers (20) act on the inside of the belt (15) and springs (26) acting on the rollers prevent the belt (15) from moving inwardly in the reach A-B.</p> |
