The Cricket dolly is a single column device on a multi-configuration
wheel system with the column being able to be
raised or lowered in -shot with extreme smoothness.
The Cricket has a double extension
elevating system operated by an Electro-hidro-Drive unit. The
two extensions operate simultaneously being positively linked
together by a chain system.
The two extension tubes of the Cricket dolly
are made of triangular-shaped aluminum alloy extrusion which
run smoothly together on roller bearings on hardened ground steel
guides. This system assures rigidity between the columns without
the need for clamps on the top of each section.
The Electric-Hydraulic Drive unit incorporates
a 115V AC/DC motorized pump, a manual back-up pump, two hydraulic
accumulators and all the necessary hydraulic controls to give
an exceptionally wide range of variable speeds in either direction
with an automatic soft stop at either end of the travel.
The 26 inches of vertical movement can
be set to go infinitely slowly. The Cricket has crabbing capabilities and comes
with full accessories (center column risers, skate wheels, side
boards, sets risers and steering wheels) and fits on standard
track.
