GB458728A - Improvements in and relating to fastening devices for doors - Google Patents

Abstract

458,728. Door hinges and fastenings. RIEGER, M., 108, Berliner Strasse, Wilmersdorf, Berlin. April 29, 1936, No. 12240. Convention date, April 30, 1935. [Classes 44 and 65 (ii)] A fastening device which may also function as a hinge, and particularly for doors which may be required to make airtight closure, allows the door to bear lightly on its seating during normal opening and closing operations but to be tightened on its seat when required. If required, the door may be entirely released and bodily removed. Fig. 1 shows two devices arranged near each edge of a door a provided with rubber strip or tube packing b adapted to bear against the fixed frame c. Each device comprises a vertically moving bolt or hinge-pin f with conically reduced lower extremity h, guided in a socket member d and raised or lowered as required by pivoted handles l inside and outside the door. A fixed bracket e having a circular hole of the same diameter as the cylindrical portion of member f underlies or supports socket d when the door is closed. Normally, the conical portions of the bolts engage the holes in brackets e so that the connection is loose and the door seats lightly. To tighten the door on its seat the handles are raised to depress the bolts so that their cylindrical portions engage in the holes. To release the door at either or both edges, the corresponding handles are depressed to raise the bolts clear of the brackets. Removable screw stops m may be used to limit handle-movement at the hinged edge of the door, so that this edge can only be completely released after removal of the stops.