DEVICE FOR IMPARTING VIBRATIONS TO THE U-FORM NEEDLE OF A VIBRATION-TYPE VISCOSIMETER

摘要

The present invention relates to a device for vibrating the pin of a viscometer, wherein the emitter arm of the pin is fixed to the end of a spring leaf pivoted about a fixed point, said leaf abutting on a ball bearing whose inner race is moved in rotation by a drive shaft eccentric with respect to the axis of the bearing and whose outer race is locked in rotation. The invention is more particularly applied to vibrating viscometers of the type comprising a pin.