1results about "Swimming framework" patented technology

The present invention relates to an aerial safety dolly and modular rigid rail system designed for construction and maintenance personnel working at heights, enabling continuous, smooth and fail-safe operation for fall arrest, rope travel and descent. The aerial safety dolly has a connecting arm, a clamp body and a main frame operatively interfacing with a rail engagement mechanism movable between a rail engagement position to engage a rigid rail and a disengagement position to disengage the rigid rail. The rail engagement mechanism can include an integral pivoting arm that simultaneously closes inward to engage the rigid rail and outward to disengage the rail. Thus, the dolly can be easily and safely connected and disconnected at any location along the rigid rail.