Abstract: Furniture which is convertible so as to provide a table for playing snooker or the like or alternatively a bed, comprises two parts each of box-like construction and of like rectangular planform. One part has an upper surface in the form of a snooker table while the other part has upstanding side and endwalls which retain a mattress and bedding thereon. The part in use stands on top of the part not in use to conserve space in the home.

Abstract: In a surface-treating process, such as anodizing, the current to each one of a plurality of treated articles is monitored separately, and if the current is above or below an acceptable current magnitude, the current to the article is interrupted, and an indication is also provided to identify that the current has been interrupted to the article. The acceptable current ranges are defined by a single calibration device which provides the same current reference control for each article.

Abstract: Nickel-based braze alloys can be removed from nickel-based metals without damaging the nickel-based metal by a process comprising immersing the nickel-based braze alloy/nickel-based metal composite into an electrolyte solution which will not attack the nickel-based metal at a specified voltage condition. This voltage condition is imposed across the composite and potentiostatically controlled to produce a nickel braze alloy/nickel-based metal current density ratio in the composite which results in etching of the nickel-based braze alloy with no damage to the nickel-based metal. The process has particular utility for removing nickel-based alloy brazed vanes from nickel-based metal shrouds in gas turbine engine stators.

Abstract: Nickel-based alloys can be removed from ferrous-based metals without damaging the ferrous-based metal by a process comprising immersing the nickel-based alloy/ferrous-based metal composite into an electrolyte solution which will not attack the ferrous-based metal at a specified voltage condition. This voltage condition is imposed across the composite and potentiostatically controlled to produce a nickel-alloy/ferrous-metal current density ratio in the composite which results in etching of the nickel-based alloy with no damage to the ferrous-based metal. The process has particular utility for removing nickel-based alloy brazed vanes from stainless steel shrouds in gas turbine engine stators.