摘要:
A screw is disclosed which has a shank having a screw thread. A drill section is formed on the shank and extends from the tip of the shank to an intermediate position. The screw thread extends all of the way to the tip. The drill section includes a flute forming a flute edge which intersects the screw thread to form at least one thread tapping edge.
摘要:
In one aspect, the present invention relates to a crate subassembly including four support cords with connector plates securing respective adjacent cords. More particularly, the connector plates extend over the interfaces between adjacent cords, and the connector plates secure adjacent cords together so as to prevent relative lateral movement between adjacent cords yet allow relative rotational movement of the cords as described below. By simply separating opposing cords, the subassembly can be easily and quickly opened. Specifically, the connector plates flex, or bend, and the connector plates have sufficient rigidity so that once opened, the subassembly does not close on itself during handling. Also, notches are formed between adjacent cords, and these notches are utilized when forming a crate as described below. To form a crate, and in an exemplary configuration, three subassemblies are positioned in a spaced relationship, and girders are positioned to extend through respective notches in each subassembly. The girders may, for example, be secured to each subassembly using screws which pass through the girder and into one of cords. In this manner, a crate for an elongate object such as a tub is easily and quickly assembled.
摘要:
A device for applying nailing plates to the ends of wooden ties includes a plate feeder for applying nailing plates to the generally vertically-oriented ends of a wooden tie horizontally disposed therein. The plate feeder includes a frame on each side for holding a nailing plate in a generally vertical orientation adjacent one of the ends of the wooden tie, a dispenser associated with each frame for dispensing nailing plates to the frame; and a piston on each side actuable to partially press a nailing plate held in the frame into the ends of the wooden tie. A tie feeder for conveys ties to the plate feeder. There is also a press for pressing nailing plates partially embedded in the ends of a wooden tie, into the ends of the wooden tie. A conveyor conveys wooden ties from the plate feeder to the press.
摘要:
A connector plate application apparatus presses connector plates into wood members to connect them together for forming wood frames, truss components and the like. Connector plates are supplied to the apparatus in the form of a strip which is pre-punched with nailing teeth. The connector plates are sheared from the strip and driven into the wood members by drivers. The strip is fed forward automatically by a strip feed which engages the strip in openings left by punching the nailing teeth. Loading of a new strip of connector plates is facilitated by an alignment mechanism which allows non-visual alignment of the strip with the strip feed so that the strip feed engages the strip in the openings.
摘要:
A brace for mounting on a web member in a generally planar truss to resist flexing of the web member out of the plane of the wooden truss. The brace is an elongate metal member comprising a flange adapted to overlie a face of the web member, and a body, extending from the flange, adapted to lie substantially within the thickness of the web member. A plurality of teeth may be integrally formed in the flange to embed in the web member and mount the brace thereto. Alternatively, holes may be provided on the flange for mounting the brace. The brace, when mounted on a web member, helps reduce bending and flexing of the web member, out of the plane of the truss, and trusses that include the brace do not need cross-bracing.
摘要:
A jig system for aligning wooden chords and metal web members in the manufacture of joists, the system includes an assembly surface having a longitudinally extending track therein, and a plurality of jigs positionable in the track. The jigs have upwardly projecting pins for engaging alignment holes in the webs for properly orienting and spacing the webs. The jigs may also have generally parallel alignment bars on either side of the pin for holding the portion of the metal web surrounding the alignment hole therebetween. The jig system can be used in a method of assembling joists which includes the steps of providing web members having a alignment hole at a predetermined height; providing at least one jig having a plurality of pins adapted to engage the alignment holes on the web members; mounting the web members on the jig to vertically align the web members; aligning the top and bottom chords with the aligned web members on the jigs; and pressing the chords and web members together to embed the integral nails on the web members in the top and bottom chords.
摘要:
Apparatus for stacking individual wood roof trusses horizontally into bundles suitable for banding, the apparatus including a stacking station, a conveyor adapted to convey wood roof trusses individually and in a predetermined horizontal plane to a position adjacent the stacking station. A transporter is provided adjacent the stacking station. The transporter, normally being disposed below the horizontal plane, is raised above the plane to engage a truss and then move the truss laterally off of the conveyor to the stacking station.
摘要:
A metal wall framing section comprising top and bottom tracks and studs, each formed of sheet metal, the top track comprising a downwardly facing outer channel and an upwardly facing inner channel nested in the outer channel and forming therewith a box beam for taking the load of roof trusses bearing on the top track between studs.
摘要:
A modular building unit has an interior space and is placed with other modular building units to form a building. The unit includes a first modular section having a first floor frame and a first wall frame extending up from the first floor frame. The first modular section defines a first portion of the interior space of the unit. The first floor frame underlies the first portion of the interior space of the unit. A second modular section includes a second floor frame and a second wall frame extending up from the second floor frame. The second modular section defines a second portion of the interior space of the unit. The second floor frame underlies the second portion of the interior space of the unit. A connection couples the first and second modular sections to one another. The first and second floor frames being generally coplanar with one another.
摘要:
A module for use in constructing a building includes a ceiling assembly. Wall assemblies are configured for attachment to opposite sides of the ceiling assembly generally at tops of the wall assemblies. A floor assembly is configured for attachment generally to bottoms of the wall assemblies. Connector plates are attached to the wall assemblies. The connector plates are configured to receive fasteners for attaching the ceiling assembly and floor assembly to the wall assemblies. A method of construction using the modules is also disclosed.