作者: Frank O. Silvander
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摘要: An element for use in concrete pile casting to align coupling members on end fittings during the operation. The have key grooves, each such groove designed, when two sections are be joined together, receive therein a locking interconnect fitting at one of ends section with matching opposed other section. At bottom is formed through-passage recessed seat accommodate member which rests freely and coupled reinforcement iron rod extending lengthwise through pile. aligning comprises presser means support placed grooves. arranged pressed against free while side faces serve as back-up said member.