A scaffolding tube clamp having a pair of body portions defining a top and a base that are hinged together and receivable about a scaffolding tube. A rotatable bolt is received through a hole in the top a hole in the base portion. The bolt has a lower end with engagement means to releasably secure the bolt to the base. The bolt's head has a lower surface that is engageable with a surface on the top. The lower surface of the head, and the surface of the top that is engaged thereby, have complimentary ramped configurations such that when the bolt is rotated the ramps engage, resulting in the ramps moving the top toward the base. In an alternate embodiment the bolt is threaded with two sets of threads that have different diameters and different pitches and that are threadably received within the holes in the top and bottom.

A joint includes: a first coupling section configured to be coupled to an end of a first pipe; and a second coupling section configured to be coupled to an end of a second pipe. The first coupling section has: a first sealing portion configured to be continuous with a first sealing surface or a second sealing surface of the first pipe; and a first non-sealing portion configured to be continuous with a first non-sealing surface or a second non-sealing surface of the first pipe. The second coupling section has: a second sealing portion configured to be continuous with a first sealing surface or a second sealing surface of the second pipe; and a second non-sealing portion configured to be continuous with a first non-sealing surface or a second non-sealing surface of the second pipe.

The present invention relates to a device to slidingly connect an end of a first element to a side of a second element, the second element side having a channel extending therealong, the device comprising a device body having a fixable end and a slidable end, the fixable end being adapted to be affixed to the end of the first element, and a protrusion extending from the slidable end of the device body, configured to engage with the channel of the second element and slide therealong, wherein the device body is formed in at least a first and second device body portion, the first and second device body portions being separable.

A sign having a display section formed from two pliable sheets and a frame assembly having members joined by various connector pieces. The connector pieces may include couplers and corner pieces. The connector pieces may be used to construct the frame assembly. The connector pieces may also be used to stow the frame assembly when the sign is not in use or being packaged for shipment and also during shipment. For example, the connector pieces may cover the ends of frame assembly members to keep them organized and to keep the members from piercing packaging or other parts of the sign.

A coupling device suitable for interconnecting two beam ends is provided, wherein the beam with the beam end has an elongate axis, where on a first beam end is arranged first interconnection units having two first parallel flange elements arranged with a mutual first distance x, wherein in each flange is designed a cut-out with a cross-section in the plane of the flange; a second beam end is arranged a second interconnection unit having a second flange, the width of the second flange across the plane of the second flange is smaller than or equal to x, and where largely perpendicular to the plane of the second flange, a connecting element protrudes on each side of the second flange, the cross-section of the connecting element in the plane of the second flange allows insertion of the connecting element into the cut-outs of the first flanges on the first beam end.

Systems, apparatuses, and methods for constructing an airship quickly and cost-effectively are described. In one embodiments, a jig for constructing a mainframe of an airship structure may have a first rail and a second rail that are configured to be parallel to each other, the first rail and the second rail each forming an arc, multiple first supporting structures coupled to the first rail, wherein the first supporting structures have non-uniform heights to support a curvature of the arc of the first rail, multiple second supporting structures coupled to the second rail, wherein the second supporting structures have non-uniform heights to support a curvature of the arc of the second rail, wherein the first rail and the second rail are configured to interface with detachable wheels coupled to an outer surface of the mainframe and enable the mainframe to be rotated along its axis on the jig.

A fastening mechanism configured to connect a first member to a second member may have a clamp member having an enclosure for enclosing the first member. The mechanism may also have engagement sheets extending from two side edges of the enclosure. Each engagement sheet may have a first engagement portion. The mechanism may also have a locking member having slots where the engagement sheets of the clamp member may be configured to be inserted through the slots. The mechanism may also have an actuating and tensioning device having a main body portion provided with second engagement portions engaged with the first engagement portions, and a force application mechanism affixed to the main body portion for applying a force on the locking member to shift the relative position between the locking member and the clamp member. A furniture assembly using the fastening mechanism is also provided.

The invention provides a reusable linkage which has a coupling which coupling has one or more male connectors formed from two or more compressible leaves; and/or one or more female connectors wherein each female connector is shaped to receive a male connector; wherein the compressible leaves of the male connector are shaped to resiliently engage the female connector and wherein the leaves of the male connector are compressible such that a male connector can be removed from a female connector.

An adjustable bathroom handrail assembly is provided with a pair of elongate vertical handles with mounting hardware to mount to an upright support surface and spaced apart from the upright support surface. An adjustable horizontal bar extends between the pair of vertical handles, and a locking mechanism connects the at least one adjustable horizontal bar and one of the pair of elongate vertical handles. A locking mechanism is located at an intersection of the horizontal bar and the one of the elongate vertical handles. A method for installing and adjusting wall-mount hardware installs a pair of elongate vertical handles to an upright support surface. The ends of a horizontal bar are installed onto the pair of elongate vertical handles. A locking mechanism on the horizontal bar is disengaged to adjust the horizontal bar to a location along the pair of elongate vertical handles.

A connection device for mobile frame structures includes a bracket on a surface having a cam shaft and a cam lock has a spiral axial slot having a locking groove and a central cam groove. A cam follower, a spring and a force stop are positioned in the central cam groove. A retention device holds the components in the cam groove. A structural support is engaged to the cam lock. An intersection between the spiral axial slot and the central cam groove has one or more detents which engage the cam follower prior to engagement of the cam lock to the bracket. The cam shaft is positioned in the spiral axial slot and the cam lock is rotated moving the cam shaft into the locking groove and depressing the cam follower relative to the spring to lock the cam shaft into the locking groove.