Abstract:
A take-up fastener is disclosed for fastening a level in a frame construction to the level below so as to resist upward forces generated by wind and other sources on the framed construction. The take-up fastener in general includes a take-up plate, or washer, fastened to a portion of the upper level and a take-up screw fit through the take-up plate and fastened to the adjacent level below. Once the take-up fastener is fully assembled, the take-up plate includes a pair of tabs which are capable of engaging threads on a take-up screw in a way that allows one-way motion of the take-up screw relative to the take-up plate. In particular, the take-up plate can move downward relative to the take-up screw, for example on constricting of the wooden members to which the take-up plate is affixed. However, the engagement between the take-up plate and take-up screw prevents movement of the take-up plate upward with respect to the take-up screw, for example upon an upward load due to wind or other external force.
Abstract:
A mandrel is disclosed for securely holding a screw bit during use, but allowing easy removal of the screw bit for replacement. The mandrel includes a socket having a chamber housing a locking mechanism such as a split-ring. The mandrel further includes a release mechanism such as one or more ears for moving the locking mechanism from a first position where the screw bit is held within the socket and a second position where the screw bit may be removed from the socket.
Abstract:
A fastener includes a shank having a pilot section and a threaded section. The pilot section includes a cutting tip and a drill section; the threaded section includes a first thread region having the same twist as the drill section and a reverse thread region. A helical ridge may be provided in the reverse thread region. A head at the second end includes a top portion such as a disk and an undercut region.
Abstract:
A take-up fastener is disclosed for fastening a level in a frame construction to the level below so as to resist upward forces generated by wind and other sources on the framed construction. The take-up fastener in general includes a take-up plate, or washer, fastened to a portion of the upper level and a take-up screw fit through the take-up plate and fastened to the adjacent level below. Once the take-up fastener is fully assembled, the take-up plate includes a pair of tabs which are capable of engaging threads on a take-up screw in a way that allows one-way motion of the take-up screw relative to the take-up plate. In particular, the take-up plate can move downward relative to the take-up screw, for example on constricting of the wooden members to which the take-up plate is affixed. However, the engagement between the take-up plate and take-up screw prevents movement of the take-up plate upward with respect to the take-up screw, for example upon an upward load due to wind or other external force.
Abstract:
A take-up fastener is disclosed for fastening a level in a frame construction to the level below so as to resist upward forces generated by wind and other sources on the framed construction. The take-up fastener in general includes a take-up plate, or washer, fastened to a portion of the upper level and a take-up screw fit through the take-up plate and fastened to the adjacent level below. Once the take-up fastener is fully assembled, the take-up plate includes a pair of tabs which are capable of engaging threads on a take-up screw in a way that allows one-way motion of the take-up screw relative to the take-up plate. In particular, the take-up plate can move downward relative to the take-up screw, for example on constricting of the wooden members to which the take-up plate is affixed. However, the engagement between the take-up plate and take-up screw prevents movement of the take-up plate upward with respect to the take-up screw, for example upon an upward load due to wind or other external force.
Abstract:
A joist hanger used to attach a joist to a support member or header designed to minimize the noise caused by the rubbing of the members of the connection, during loading. The joist hanger includes a seat and a pair of side walls extending upwardly in spaced relationship therefrom to receive the end portion of an joist. The bottom of the joist rests on the seat, and the side faces of the joist extend upwardly therefrom in spaced relationship from the side walls of the hanger. Inwardly projecting guides formed in the side walls of the hanger, hold the joist at selected points, maintaining the spaced relationship between the sides walls of the hanger and the side faces of the joist. The inwardly projecting guides can be formed with embossed portions connected to the side walls of the joist. The joist hanger is also formed with back flanges and top flanges that are relatively narrow compared to the back flanges.
Abstract:
A high strength moment frame connector system is used to connect beams and columns. The moment frame connector system includes a shear tab connected between the column and beam, and a pair of T-shaped connectors connected between the column and beam. Each T-shaped connector includes a first section affixed to the column and a second section affixed to upper and lower flanges of the beam. The first section includes a notch to prevent interference between the T-shaped connector, the shear tab and/or bolted connections for those components.
Abstract:
An anchor bolt locator is provided that is inexpensively manufactured on automatic die-press machines from sheet steel and a structural nut that does not require any welding, while also being easy to use and install with current, commonly-used building practices and anchor designs. The anchor bolt locator is made from a galvanized sheet metal chair and a structural nut is encased in the chair.
Abstract:
A connection between a connector, a fastener and one or more structural members is disclosed. The connector can be formed with a fastening and alignment member. The fastening and alignment member includes a projecting member and a protruding member in close proximity to a predetermined location for the fastener.
Abstract:
A connector is provided to attach a supported member to a supporting member, with the supported member being in sloped and skewed relation to the supporting member. The connector has back members attached to side members. A seat member attaches to the side members through a hinged connection. The seat member interfaces with the bottom face of the supported member and can be disposed at a sloped angle. A pair of seat side members extend from the seat member.