摘要 |
Three relatively movable fingers fit in a clamp at a preselected test diameter and pivot in response to a load transferred by the clamp. Load cells responds to the movement of the levers and the forces transmitted are displayed. In a preferred embodiment, the pivots are mounted to brackets which are fixed to the jaws of a chuck so as to be simultaneously movable to pre-selected spaced positions corresponding to the test diameter of the clamp.
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