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1,174,487 the arrangement being such that when said name to this specification in the presence of bails are moved on their pivotal connections two subscribing witnesses. to horizontal position, the gripping mem- MARTIN W. PALMORE. bers are rocked on their rounded free ends 6 and their gripping faces are brought to po- Witnesses: sition to grip the pipe. J. F..CAROLINE, In testimony whereof I have signed my T. H. BEAUCHAMP. Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. C."