GB656162A - Improvements in or relating to doors and windows - Google Patents

Abstract

656,162. Hinges. ALLRAUM AKT.- GES. June 23,1948, No. 16871. Convention date, June 27, 1947. '[Class 65(ii)] [Also in Group X] A door 1 is provided at each of its four corners with a vertically projecting pin which is received and guided in a horizontal groove formed in the frame. The grooves accommodating a pair of coaxial pins 3 are open at least at one point, so as to release these pins and allow the door to be swung about the other pair of coaxial pins 2. The frame is also formed with recesses 7 and 8 which respectively retain the pivotal edge of the door when the latter is closed, and permit the swinging movement of said edge. In a modification, doors 15,16 are adapted to slide on pins 19 in grooves 17 and 18 respectively. Groove 17, situated at a higher level than groove 18, is provided with recesses 20, 21 near its ends, and intermediately with openings 22, 23. Groove 18 is similarly provided with recesses 24, 25 and openings 26, 27. When the door is moved through a distance X its right hand pins can leave the groove 18 through the openings 27, thus enabling the door to pivot on its left hand pins in the recesses 24. Door 15 can then be opened in a similar manner while pivoting in the recesses 21. Alternatively, the doors can pivot in the recesses 20 and 25. Draught is excluded at the overlapping edges of the doors by packing strips 31 which abut each other when the doors are closed. In a further modification, the pins 19 are oval in cross-section to prevent their accidental displacement into the recesses when pivotal movement of the doors is not desired.