Patents Assigned to Mechanische Weberie GmbH.
  • Cine projection screen
    Patent number: 3942868
    Abstract: The specification describes a roll up cine projection screen comprising struts for holding it taut in the extended condition for use. It is adapted to be held on a rolling up rod or a tubular casing on a carrier and in the case of which the struts are adapted to pivot with the cine projection screen held taut by them about a horizontal axis. The screen can be secured in several angular positions by means of two pivot bearings having vertical and horizontal axis respectively.
    Type: Grant
    Filed: April 23, 1974
    Date of Patent: March 9, 1976
    Assignee: Mechanische Weberie GmbH.
    Inventors: Hans Gunther Hoffbauer, Karl Kaufmann