Roller Systems for Moving and Supporting Loads on Tracks

A system, comprising:

• a weight having a base, the base having a front end and a rear end, and at least one pair of rollers provided at the rear end of the base;
• a main track having a front end and a rear end, the main track having a wheel provided adjacent the front end of the main track;
• a pivoting extension track that is secured to a pivoting support surface, the extension track having a rear end that is aligned with the front end of the main track and a front end that has a pair of rollers and an adjustable height support;
• and
• wherein the base travels along the main track between a first position where the at least one pair of rollers is at the rear end of the main track, and a second position where the at least one pair of rollers is adjacent the wheel of the main track, and the base resting on the pair of rollers of the extension track;
• and
• wherein the pivoting support surface is pivoted between a stowage position and a use position, with the extension track and the pivoting surface perpendicular with respect to the main track in the stowage position.

A system, comprising:

• a weight having a front end and a base, the base having a front end and a rear end, and at least one pair of rollers provided at the rear end of the base;
• a track having a front end and a rear end, the track having a pair of wheels provided adjacent the front end of the track;
• a ground support roller assembly secured to the front end of the weight, the ground support roller assembly having a bracket secured to the weight, a caster wheel connected to the bracket, and a spring retained by the bracket and coupled to the caster wheel;
• and
• wherein the base travels along the track between a first position where the at least one pair of rollers is at the rear end of the track, and a second position where the at least one pair of rollers is adjacent the pair of wheel of the track.