in particular, glued wood beam, i-beam

摘要

961,344. Wooden beams. J. WOLFF. Dec. 1, 1961 [Dec. 9, 1960], No. 43136/61. Heading E1V. In a wooden I-sectioned beam, the parallel flanges each comprise three glued plies a, b, c, the grain of the plies a, c being longitudinal and that of the plies b being transverse to the length of the beam. The web d, glued in dovetail grooves in the flanges, is fitted by temporarily opening the grooves by bending the flanges.