Apparatus for testing load application point on surface under different cases load in aviation industry, has screw retained in socket by head, and nut in threaded connected with screw to transmit efforts to load hook

摘要

The apparatus has a base comprising a canvas. The canvas is inferiorly united by glue to a surface by sewing with a superior canvas. A hemispheric cap is arranged with a metallic nature base between the base of the canvas and the superior canvas. A screw is arranged with a head that freely crosses the hemispheric cap and the superior canvas. The screw is retained in a socket by the head. A nut is in threaded connected with the screw to transmit efforts to a load hook.