Patent ID: 8640388

Claim:
A rostrum comprising at least two support structures, each support structure comprising: a first A-frame including an upper portion; and at least two second A-frames, each second A-frame of the at least two second A-frames including an upper portion, the at least two second A-frames configured to be nested and to be retracted into the first A-frame, a respective support connected to each of the first A-frame and configured to support a load; wherein each of the support structures is configured to telescope and thereby to slidably expand and retract between an extended, in use position and a retracted, stored position such that the at least two second A-frames are slidably received within the first A-frame, and the at least two second A-frames and the first A-frame are held in slidable engagement to expand and retract between the extended and retracted positions such that when the support structures are extended from the retracted position the support structures together are configured to support a deck upon the A-frames and wherein each support is connected to the upper portion of the respective first A-frame, each support having a longitudinal extent extending from the upper portion of the respective first A-frame and comprising a stop positioned at a distal end of each support and configured to secure to a respective second A-frame, each support thus configured to prevent the respective second A-frame from being moved beyond the distal end of the support.