Loading patent…
AssigneeM.A.E. S.P.A.
InventorMarco Rovellini
Estimating the term…
A stretching apparatus of fibre tows in a pressurized steam environment includes an elongated stretching chamber having a generally rectangular section of a low height, within which the tows are treated with saturated or overheated steam at high temperature and pressure and simultaneously undergo a mechanical stretching operation. The stretching chamber has a width sufficient to house multiple tows mutually flanked in a running plane and is formed within a stretching chest made of aluminum. The stretching chest is housed in a supporting structure, having a higher structural rigidity than the stretching chest, which includes a plurality of contact elements apt to determine a predefined position of the stretching chest with respect to a direction perpendicular to the tow running plane and to allow a limited mobility of the stretching chest in the other two mutually perpendicular directions which lie in the plane, length and width respectively.
A stretching apparatus of fibre tows in a pressurized steam environment, of the type comprising an elongated stretching chamber (2) having a generally rectangular section having a length, a width and a low height, within which the tows (T) are treated with saturated or overheated steam at high temperature and pressure and simultaneously undergo a mechanical stretching operation, wherein the width of said stretching chamber (2) is sufficient to house multiple tows (T) mutually flanked in a tow running plane, wherein said stretching chamber (2) is formed within a metal stretching chest (1), free to expand in the directions of said length and said width within a surrounding rigid, pressure-resistant supporting structure (3-9), which supporting structure exactly determines a position of said stretching chest (1) in a direction of said height, through a plurality of contact elements (8, 9).
Dependencies are inferred from the claim text.