An obsolete term describing oil or grease coatings used to provide temporary protection against atmospheric corrosion.
A term used to describe a technologically advanced window system that contains glazing that can change or switch its optical qualities when a low voltage electrical signal is applied to it, or in response to changes in heat or light.
Molten slag; in the pulp and paper industry, the cooking chemicals tapped from the recovery boiler as molten material and dissolved in the smelt tank as green liquor.
A block with a single sheave which is hinged and opens on the side so that the bight of a line can be led into the block and closed without running the whole length through