Improvements in the structural construction of elemnets intended to close holes or vanos in the art of construction (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the structural construction of elements designed to close gaps or openings in the construction art, according to which the stringers and rafters that make up the frame or static part of the set, are formed by a plurality of timbers arranged in an aligned manner. That its veins and fibers are contraped to counteract the contraction efforts of the material. (Machine-translation by Google Translate, not legally binding)