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U.S. Patent 1,520,705 · C. C. Farmer · Westinghouse Air Brake · 1924

Pipe-Supporting Device — grip the pipe away from its threads

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Sequence Clamp THREAD STRESS
Parts laid out. The split ring and flanged nut ride the pipe loose.
Deflection & grip exaggerated ~20×. Color = stress: red failing, green safely absorbed.