Patent ID: 11912544
Assignee: nan
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. A line roller assembly, comprising:
a base assembly including a clamping assembly configured to clamp the base assembly to a parapet wall surrounding a roof of a structure; and
a carriage assembly slidably mounted on the base assembly, said carriage assembly including a pair of opposing arms each arm including a roller at a distal end, said carriage assembly movable between opposing first and second extended positions and a medial position, and said rollers each have a groove configured to receive a line for aiding the line over the parapet wall;
the base assembly further comprising a pair of opposing guide rail guide assemblies each having a pair of opposing guide rail guides each having a channel formed therein, and the carriage assembly further comprising a pair of guide rails that are slidingly received in the channels such that the carriage assembly may slidingly move within the channels relative to the base assembly, each of the guide rail guides further includes a pair of opposing alignment guide rail guides attached thereto and disposed beneath and outwardly therefrom, and each of the alignment guide rail guides include a channel formed therein for slidingly receiving an alignment guide rail therein configured to maintain alignment of the carriage assembly as the carriage assembly slides relative to the base assembly;
wherein in the first extended position one of the arms extends a pre-determined distance over an edge of an outer wall of the structure.