Manual or mechanically powered device for extension or contraction of sheets or profiles (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the object of the main patent No. 235,873, granted on November 4, 1957, by "Manual or mechanically driven device for the extension or contraction of plates or profiles", consisting of a lower tool and a higher tool that, when being subjected to a vertical compression they imprison the piece to be deformed, producing by opposite movements of their clamping jaws the upsetting of said piece to be deformed, and whose clamping jaws are provided with compression plates of synthetic material, characterized in that the zone of contraction or upset limited by the inner edges of the compression plates, adapts in its form to the most advantageous deformation conditions of the parts and materials to be worked in each case, and the space between the inner edges of the plates of compression is filled with straightening bodies of elastic material. (Machine-translation by Google Translate, not legally binding)