Abstract: A continuously working press for forming a continuously stringer (7) of compressible material, such as wood chips. For the purpose of pressing the stringer (7) in a vertical direction, the press includes upper and lower continuously moving endless press chains (8 and 9) formed by mutually linked support elements. For effecting active side-pressing of the stringer (7) an array of side-pressing blocks (19) are arranged on each side of the press chains (8, 9) and which blocks are suitably entrained for movement in the circular motion of the upper or lower chain. The side-pressing blocks (19) are displaceable in the transverse direction of the press chains (8, 9) and are guided during said displacement by guide means (23) which are conveyed by the support plates forming the press chains (8, 9).

Abstract: A continuously operating heat-treatment press in which a continuously advanced layer (7) of material under pressure, for example including glue-coated wood chips, is heated dielectrically. The press is of the kind which comprises at least one endless, continuously running press chain (8), for maintaining a vertically acting press force on the layer (7) of material, said press chain (8) being formed of mutually linked support elements. The press surface of the support elements in the press chain (8) comprises mutually electrically insulated metal rods (23) extending in the transverse direction of the chain. At least one stationary electrode plate (28) connected to a high frequency generator is arranged adjacent said metal rods (23).