Melun Diptych purchased by Clemens Brentano, a German poet, and joined his collection in 1896. The halves have been reunited twice since their separation, the first time in 1904 when France borrowed the panels from Berlin for an exhibition of French primitives and the second time in 2017, for the Jean Fouquet exhibition at Gemäldegalerie in Berlin. Melun Diptych The Melun Diptych is a two-panel oil painting by the French court painter Jean Fouquet (1425–1480) created around 1452. The name of the diptych came from its original home in the Collegiate Church of Notre-Dame in Melun. The left panel depicts Etienne Chevalier
Hinged expansion joint joints used in piping systems are restricted to pure angular rotation by its hinges. As a pair, hinged expansion joints will function together to absorb lateral deflection. Advantages of hinged expansion joints are that they are typically compact in size and structurally rigid. Hinged expansion joint A hinged expansion joint is a metallic assembly, that can rotate in a single plane, used to absorb changes resulting from piping thermal expansion or contraction. They include hinges, attached to the expansion joint ends with a pair of pins, which allow angular movement in a single plane, restrain the pressure thrust, and prevent