Abstract: An emergency isolation valve has a valve plug in a valve body connected to a pipeline. The valve plug is connected to a valve shaft around which a sector gear is provided and engaged with a rack of a piston rod in a cylinder. The piston rod has a piston at one end and is connected to a compression spring at the other end. The piston is moved by air supplied into a cylinder from a compressed air source via a fluid control and a solenoid selector valve. Air supply stops and a discharge hole of the cylinder is opened, so that air is discharged to the outside. The piston is returned by the compression spring to close the discharge hole. At the same time stop of the piston rod is detected by a sensor thereby checking whether to actuate the valve plug normally even during operation.

Abstract: A pipe joint, and a method of forming a pipe joint between two metallic pipes which have been internally and/or externally coated with a material to prevent corrosion includes a spigot and a socket. The socket has, or is formed with, an internal circumferential groove (6) that provides a seating for an elastomeric sealing ring (8). An extension or lip (13) forward from the groove provides a welding location (14) remote from the sealing ring. The coating on the end of the socket if necessary is removed to facilitate welding. The spigot has a heat sink member (9) to enable the lip of the socket to be welded to the metal of the spigot.

Abstract: A picket fence assembly is provided which includes uniquely configured pickets which facilitate fast and easy construction of a picket fence without the need for additional mechanical fasteners. In one embodiment, the picket fence includes non-circular pickets, a first horizontal member and a second horizontal member. The first and second horizontal members include openings configured to receive respective pickets. Each picket includes at least one notch positioned to align with a respective opening in one of the first and second horizontal members. The notch facilitates rotation of the picket in relation to the one horizontal member to axially secure the vertical picket to the one horizontal member. The opening in the other horizontal member is oriented to non-rotatably receive the picket member after it has been secured to the one horizontal member. A method of assembling a picket fence assembly is also disclosed.

Abstract: A flexible conduit or cable for electrical wiring having at least one break location along the length of the conduit or cable that is visible on an outer surface of the conduit or cable. The break location enables the conduit or cable to be broken. Also provided is a method for producing the flexible conduit or cable, and an apparatus that includes the flexible conduit or cable.

Abstract: An apparatus and method for the safe and controlled production of glue chipped glass. This custom glue chipped glass processor and method facilitate the production of glue chipped glass for either artisans creating highly specialized works of art, or beginners in the field.