| 摘要 |
A pipe (2), which is embedded in reinforced concrete, is supported before and during the time the concrete is poured, by means of a metal rod (1). This rod is attached to the reinforcing bars (3) and to the pipe by wire loops (5). The metal rod has notches (1') formed at a number of places along its length. When the concrete has set the exposed part of the rod can be easily broken off at the appropriate notch, leaving the pipe projecting from the concrete in its required position. USE/ADVANTAGE - The pipe is used as a duct for electric cables and can be exactly positioned by this method.
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