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An apparatus in the trumpet and trombone by which the sounding tube is lengthened and shortened so as to produce the tones between the fundamental and its harmonics.

ffect being to bring the place of support nearer the center of the spear, and practically lengthen the arm in the act of throwing.

of a forging, as a shaft, near the end, and afterward drawn down, by hammering, so as to lengthen the forging. Contingent, or Springing, use (Law), a use to come into operation on a future uncertain event. -- In use. (a) In employment; in customary practice observance. (b) In heat; -- said especially of mares. J. H.…