Abstract: A stacking machine and method for pairing and stacking metal plates having teeth struck out and protruding therefrom, which plates are commonly referred to as nail plates. The nail plates that are to be stacked are supplied to a supply section of the machine in streams of longitudinally extending metal plates as the plates exit from a stamping machine. It is in the stamping machine that the teeth forming the nails of the plates are struck out from the plates. These nail plates are supplied to a stacking section of the stacking machine two plate lengths at a time. The stacking section receives the pair of metal plates, which also can be two plate sections with each section being formed of several plates, in a longitudinally extending relationship from the supply section and then reorientates the two metal plates so that the two plates are in a face-to-face orientation. The pairs of plates are then transferred to a stack receiving section.

Abstract: A structural joint for bearing a structural load is formed by a pair of wooden members fastened together by at least one metal connector plate. The connector plate is formed from a metal plate having a plurality of pairs of teeth punched therefrom. The teeth are punched from the plate so as to project in a direction substantially perpendicular to the plate. Each pair of teeth is struck so as to leave a corresponding longitudinally extending slot between the teeth. Each of the teeth has a knife edge portion that extends from the plate. This knife edge portion is thinner than the remaining portion of each tooth and has a sharp edge with a cross-sectional angle of less than 20.degree., preferably 8.degree. to 12.degree., for facilitating penetration of each of the teeth into the wooden members to be secured together. These knife edge portions of the teeth are made by a metal forming process which serves to shape such portion of the teeth and simultaneously widen and elongate each tooth.

Abstract: A structural joint for bearing a structural load is formed by a pair of wooden members fastened together by at least one metal connector plate. The connector plate is formed from a metal plate having a plurality of pairs of teeth punched therefrom. The teeth are punched from the plate so as to project in a direction substantially perpendicular to the plate. Each pair of teeth is struck so as to leave a corresponding longitudinally extending slot between the teeth. Each of the teeth has a knife edge portion that extends from the plate. This knife edge portion is thinner than the remaining portion of each tooth and has a sharp edge with a cross-sectional angle of less than 20.degree., preferably 8.degree. to 12.degree., for facilitating penetration of each of the teeth into the wooden members to be secured together. These knife edge portions of the teeth are made by a metal forming process which serves to shape such portion of the teeth and simultaneously widen and elongate each tooth.

Abstract: A method and machine for applying multiple nail fasteners to bridge a butt joint between members, the machine comprising a frame and side by side lever arms having fastener mounting platens with magnets on one pair of adjacent ends and having the other pair of adjacent ends connected to a fluid pressure motor mounted on the frame, so that the motor may be actuated to simultaneously rock both arms between one position wherein the one pair of adjacent ends is separated for mounting the fasteners thereon and another position wherein the arms are rocked to drive said fasteners into the members disposed between them at the joint.

Abstract: A structural joint for bearing a structural load is formed by a pair of wooden members fastened together by at least one metal connector plate. The connector plate is formed from a metal plate having a plurality of pairs of teeth punched therefrom. The teeth are punched from the plate so as to project in a direction substantially perpendicular to the plate. Each pair of teeth is struck so as to leave a corresponding longitudinally extending slot between the teeth. Each of the teeth has a knife edge portion that extends from the plate. This knife edge portion is thinner than the remaining portion of each tooth and has a sharp edge with a cross-sectional angle of less than 20.degree., preferably 8.degree. to 12.degree., for facilitating penetration of each of the teeth into the wooden members to be secured together. These knife edge portions of the teeth are made by a metal forming process which serves to shape such portion of the teeth and simultaneously widen and elongate each tooth.

Abstract: The joint includes a pair of connector plates each having a plurality of teeth struck therefrom for embedment into the ends of wooden members forming a part of a truss or frame. The teeth are distributed over the major portion of the plates inset from end portions thereof. Openings are provided in the plate end portions. In one form hereof, the metal about the opening in one plate end is extruded through the opening in the end of the other plate whereby the extruded metal forms a bearing surface for pivoting the plates relative to one another. In another form, teeth are struck from marginal portions about the opening of one plate and received through the end opening in the other plate. These teeth are formed over to effect a bearing surface. Bolts or rivets may also be used to pivotally connect the plates one to the other.