| 摘要 |
<p>1,273,583. Endless conveyers. MINING SUPPLIES Ltd. 14 April, 1970 [30 May, 1969], No. 27533/69. Heading B8A. In a mine face conveyer, each scraper blade 16 is secured to a chain 14 by a pair of spaced walls 17 forming a recess for a link 22 of the chain, a locating wall 21 intermediate said walls 17 and extending through said link, and a pin 19 located in apertures 18 to secure said link within the recess. The free end (20), Fig. 3 (not shown), of the locating wall 21 is shaped to partially fit around the pin 19.</p> |
