For experiments on sliding friction. Comprises inclined wood plane, 600 x 100 x 20mm, with 22mm diameter pulley, hinged to wood base, 450 x 100 x 20mm. Linear scale fixed to edge of plane and vertical linear and 0 to 45? angular scales fixed to base with clamp, shaped for use as index with one each scale pan 75mm diameter, cord and hooks and roller 100 x 18mm.
