Abstract: An assembly line fixture includes an elevator having a mounting surface, and a turntable mounted on the mounting surface and rotatable about an axis of rotation with respect to the mounting surface. Also mounted on the mounting surface are a detent mechanism, a locking mechanism, and a clamping mechanism. The detent mechanism includes a roller that is spring biased against the turntable, and that is operable to resist rotation of the turntable at preselected angular positions. The locking mechanism includes a lever, a locking member, and a biasing member. The locking member engages notches in the turntable to prevent the turntable from rotating. The lever actuates the locking member and the biasing member biases the locking member toward the notches for engagement therewith. The clamping mechanism includes at least one clamp that is adapted to engage a portion of an apparatus.

Abstract: A cushioned tow bar for connecting a drive trolley to a load carriage in a power and free conveyor system includes a particulate shock absorber with a damping chamber which is partially filled with particulate material, such as small ball bearings, which act to dampen the movement of a piston through the damping chamber. The damping chamber comprises a portion of a sleeve which includes a threaded end cap which mates with threads on an open end of the sleeve. The threads in the sleeve extend along the longitudinal axis of the sleeve to an extent which allows the end cap to be threadably adjusted, changing the portion of the sleeve forming the damping chamber, and thus adjusting the cushioning effect of the tow bar.