Roll off trailer frame and two trolley assemblies

A roll off trailer comprising:

• a frame having a forward end and a rear end that define a longitudinal direction therebetween, and having a first side and a second side that define a lateral direction therebetween, and having a top and a bottom that define a vertical direction therebetween;
• a first moveable trolley assembly longitudinally moveable relative to the frame, and the first moveable trolley assembly includes a lateral first sheave and an anchor point positioned vertically above the lateral first sheave;
• a second moveable trolley assembly longitudinally moveable relative to the frame;
• a cable fixedly secured to the anchor point on the first moveable trolley assembly and positioned vertically above the lateral first sheave on the first moveable trolley assembly and extending around additional sheaves on the first and second moveable trolley assemblies and terminating at a free end, the free end adapted to connect to a container and move the container as the first and second moveable trolley assemblies and the anchor point move relative to the frame;
• a first position, a second position, and a third position associated with the free end of the cable, wherein the first position is adjacent the rear end of the frame, the second position is intermediate the forward end and the rear end of the frame, and the third position is adjacent the forward end of the frame;
• wherein the free end moves from the first position to the second position in response to the second moveable trolley assembly moving longitudinally rearward, and thereafter the free end moves from the second position to the third position in response to the first moveable trolley assembly moving longitudinally forward;
• a pair of longitudinally extending rails pivotably coupled with the frame, the rails adapted to support a container thereon, wherein the first and second moveable trolley assemblies are moveable between the rails;
• a first actuator to displace the second moveable trolley assembly rearward, wherein a rearward displacement of the first actuator moves the free end of the cable from the first position to the second position;
• a second actuator to displace the first moveable trolley assembly forward, wherein a forward displacement of the second actuator moves the free end of the cable from the second position to the third position atop the rails adjacent the forward end on the frame;
• and
• a protective guide tube on the first moveable trolley assembly positioned below the anchor point, and the protective guide tube extending longitudinally rearward further than the anchor point and terminating forwardly from a casing of the second actuator, wherein the cable is strung through the protective guide tube and extends rearwardly towards the second moveable trolley assembly.