Melun Diptych 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 with his patron saint St. Stephen and the right panel depicts the Virgin and Christ child surrounded by cherubim. Each wooden panel measures about 93 by 85 centimeters and the two would have been hinged together at the center. The two pieces, originally a diptych, are now separated. The left panel now resides in the
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