专利汇可以提供Cambering attachment for truss assembly jig专利检索,专利查询,专利分析的服务。并且Joist trusses, having parallel upper and lower chord members, are necessarily manufactured with a camber and preferably upon an assembly jig having a longitudinally disposed, movable, belt-like support surface for supporting precut wooden members arranged into the shape of a truss. Clamping devices, mounted upon the support surface, hold the precut members in place and metal, spiked gusset plates are placed at opposite sides of each joint of the truss. Two pairs of opposing, transversely-disposed rolls are located at one end of the support surface, with a first pair of rolls being positioned to receive both the support surface and the assembled truss thereon, so as to partially impale the gusset plate spikes into the members. The second pair of rolls are positioned beyond the support surface to tightly press the gusset plates against the sides of the truss as it passes through these rollers. A deflector is mounted between the first and second pairs of rolls to turn the truss slightly as it passes from the first pair of rolls and into the second pair to thus impart a predetermined amount of camber in the truss.,下面是Cambering attachment for truss assembly jig专利的具体信息内容。
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