Beach sling-jump amusement device

Abstract From the Canadian patent

A sling-jump amusement device for ejecting projectiles including humans into the air, featuring a pair, of bows secured intersected in a brace. An ejection seat essentially a , trampoline mat bounded by a ring for placement of a projectile, is supported centrally in the place by intersecting bow strings, defining a lace herein. Unlike a conventional bow the drawstrings are retracted to a drawn position, opposite direction toward the bow arch enabling unobstructed ejection of an occupant positioned, loose in the seat. The brace is pivotally secured in a support frame for changing the angle of the, trajectory. The seat is retracted into a ready position by a winch mounted on the frame.