Patent ID: 8146709

Claim:
A movable safety barrier system comprising: a barrier member comprising flexible light weight material having a length with first and second ends, and a width W, the length of the barrier member for extending across and over support members of a structure; and first and second movable carriages securable to respective first and second ends of the length of the barrier member and configured for independent travel relative to each other and on separate spaced apart support members of the structure for moving the barrier member extending between the carriages sideways relative to the length over the support members of the structure, each carriage comprising a roller system secured to a lateral carriage member on a lead travel end of the carriage for engaging at least two support members of the structure with at least two spaced apart roller arrangements, the lateral carriage member transversely configured for closely traveling over and above said at least two support members of the structure, a recessed mounting arrangement at a trailing end of each carriage connected to the lateral carriage member between two roller arrangements and extending generally perpendicular and below the lateral carriage member to be generally parallel and close to the support members' level and between two support members for securing to the ends of the barrier member, the recessed mounting arrangement allowing the barrier member to extend close to the support members of the structure, and allowing the trailing end of each carriage to slide easily out from under construction components.