Improvement introduced in a vacuum negative pressure with the upper chamber removable system of thermal expansion and fixation with extraction of tweezers and spiral roller

摘要

Improvement introduced in a vacuum negative pressure with the upper chamber removable system of thermal expansion and fixation with extraction of tweezers and spiral roller refers this patent of utility model to an innovative vacuum chamber pressure. Egativa (1) which is characterised essentially by having removable upper chamber (2) with straps (2).1), the screw butterfly (2.2), felt seal (2.3), contained in the profile "U" - shaped steel, and the vacuum chamber bottom (3), equipped with a system of thermal expansion (3.1), support clamp (extractor) (3.2) in cast iron, steel guide (3.3) brass, ruler of adjustable (3.4), which will be laid down The clamps (extractors) (4).1) allowing its movement when the roller corrugador warms, there is also the ring half moon of bronze (3.5), sheet steel wear adjustable (3.6), the setting of the lower part has extraction tweezers (4.1) and spiral roller (5).