| 摘要 |
1,206,128. Agricultural implements. S. TAKAKITA, K. TAKAKITA, S. TAKAKITA, M. TAKAKITA and A. TAKAKITA. 27 Oct., 1967 [29 Oct., 1966], No. 49025/67. Heading A1B. [Also in Division E1] A shaped working part of a machine e.g. a plough or bulldozer blade is covered with a correspondingly shaped element 1 comprising a wear resistant skeleton having a plurality of interstices, channels or pores communicating with the exterior of the skeleton; all or substantially all of the interstices, pores or channels being filled with a plastics material which extends to the surface of the covering element. The wear resistant skeleton may be formed from metal mesh of e.g. iron, steel, copper, aluminium, molybdenum or an alloy thereof or may comprise a ceramic, stone or graphite block with uniform or tapered bores therein. |
