| 摘要 |
A novel pipe chock having a pipe engaging surface, an upper horizontal surface, an aperture extending vertically through said chock from said horizontal surface to the base of said chock, a pair of dogs projecting upwardly from said horizontal surface and spaced laterally from each other, a lever member pivotally mounted between said dogs for rocking movement about said pivot, said lever member having an aperture formed in one end thereof in alignment with the aperture in said chock and having the other end of said lever extending beyond said dogs to a position adjacent the edge of said chock, and a spike extending through the apertures in said lever and said chock.
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