LABORATORY VANE SHEAR APPARATUS (HAND OPERATED)IS : 2720 (Part XXX)- 1968.
Consists of a torque hand adjustable in height by means of a lead screw rotated by a drive wheel to enable the vane to be lowered into the specimen. Rotation of the vane is by means of a hand wheel which operates a worm gear arrangement turing the upper end of a calibrated torsion spring. Vane dia, rod dia, vane size & vane height are as per IS specifications .
The vane shaft is attached through the hollow upper shaft to a resettable pointer, which indicates the angle of torgue on a dial graduated in degrees. The dial reading multiplied by spring factor gives the torque. A container for soil sample is also supplied, and a sampl king tube of 38mm I.D & 150mm long can also be used as container.
BELLSTONE HI-TECH INTERNATIONAL