Altarpiece of the Saints John Altarpiece of the Saints John The Altarpiece of the Saints John is a painting by Bernat Martorell conserved at the National Art Museum of Catalonia. The "Altarpiece of the Saints John" from Vinaixa was commissioned in 1432 from the Tarragona painter Ramon de Mur, but in the end it was painted by Martorell. The MNAC keeps most of the panels from this altarpiece. The main panel is kept at the Museu Diocesà de Tarragona, a side compartment is kept at the Musée Rolin d'Autun (France), and the whereabouts of another compartment is unknown. The two Saints John feature 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