Sliver measuring apparatus

An apparatus for measuring the unit weight of sliver as it passes through a trumpet, comprising:

• (a) an integrll vertically positioned plate member having an upper portion secured to a base, a lower portion having a central opening for mounting a trumpet and a central portion of reduced cross-section joining said upper and lower portions;
• (b) a trumpet for passing sliver, said trumpet being mounted in said lower portion and operative to deflect said central portion when sliver is passed therethrough;
• (c) vertically positioned vibration compensating means joined to said central portion and adapted to vibrate independent of said lower portion, said vibration compensating means having a mass and stiffness providing a resonance frequency substantially equal to that of said lower portion and thus a substantially equal response to vibration of said base;
• and
• (d) detection and signaling means operative when sliver is passed through said trumpet and during vibration of said base to detect deflection in said central portion imposed by passing of sliver through said trumpet and by vibration of said lower portion and vibration compensating means and to develop therefrom a measuring voltage substantially indicative of the deflection imposed on said trumpet in the absence of said vibration as an indication of said unit weight.