Lap board for flight personnel

Claim 1

A lap board for flight personnel comprising, a pair of leaves hinged together transversely approximately across the middle of the board, said leaves being foldable about said hinge upon one another, the superimposed meeting faces being the inside faces of said leaves, clamping means on the outside faces of the folded leaves for clamping work sheets exposed on the respective outside faces, friction pads on the inside faces of the folded leaves, and releasable locking means to lock said leaves into extended position to form a lap board whereby said outside faces become a substantially continuous top face and said inside faces with the friction pads become the underface of the lap board, said releasable locking means including, a rigid strip having a longitudinal groove formed in one edge thereof fitting over contiguous edges of said leaves in extended position, one end of said rigid strip being pivotally attached to one of said leaves on a pivot axis at about right angles to the plane of said one leaf, the leaf on which said strip is pivoted having a recess adjacent said pivot axis accommodating said locking strip in releasing position folded into said recess.