Patent ID: 8701519

Claim:
An assembly comprising: a platform configured for motion in a first direction; a first shaft extending in the first direction and supported by the platform for axial translation in the first direction; a primary timing belt having a first portion that is movable in the first direction; and a motion conversion assembly including: a driving pulley rotatable by the first portion of the primary timing belt; and a secondary timing belt coupled to the first shaft and driven by the driving pulley such that rotation of the driving pulley caused by motion of the first portion of the primary timing belt in the first direction imparts axial rotation of the first shaft; a second shaft extending in the first direction and supported by the platform for axial translation in the first direction; an additional primary timing belt having a first portion that is movable in the first direction; and an additional motion conversion assembly including: an additional driving pulley rotatable by the first portion of the additional primary timing belt; and an additional secondary timing belt coupled to the second shaft and driven by the additional driving pulley such that rotation of the additional driving pulley caused by motion of the first portion of the additional primary timing belt in the first direction imparts axial rotation of the second shaft.