| 摘要 |
977,018. Carpenters' joints. M. R. FELLMAN. Oct. 2, 1961 [Oct. 5, 1960], No. 35470/61. Heading A4W. [Also in Division E1] Timber roof trusses have multi-toothed joints wherein the crests of the teeth generally run vertically (although they may be formed at an angle to the vertical on the heel joints), and where the joints may be dry or glued. The interengaging portions of the truss members may have a sawtooth configuration (Figs. 4 and 6, not shown, 9, 10 and 11, not shown), a castellated configuration (Fig. 7, not shown), or a wave-form configuration (Fig. 8, not shown).
|
