Static structures (e.g. – buildings) – Framing to receive door – doorjamb – or window sash – Architrave; i.e. – finish strip on floor – ceiling – or wall...
Patent
1975-08-28
1978-12-12
Braun, Leslie
Static structures (e.g., buildings)
Framing to receive door, doorjamb, or window sash
Architrave; i.e., finish strip on floor, ceiling, or wall...
52217, E06B 104
Patent
active
041289773
ABSTRACT:
The present invention concerns a door frame comprising a first and a second frame portion. Each frame portion is assembled from four plate strips bent into a substantially L-like profile form, and the frame portions are insertable into a door opening in a wall from the opposite sides thereof in such a way that a first profile leg of all plate strips of each frame portion engages the outer surface of said wall around the door opening while the second profile leg of said frame portion plate strips extends into the door opening and overlap each other therein so as to cover the side edge of said door opening. In this position the two frame portions are interconnected by a number of threaded joints. The inventive concept of the invention resides in the fact that each threaded joint consists of one fixed rod and one rotatable rod provided with cooperating threads. One end of the fixed rod is fastened to the first profile leg of the first frame portion and extends parallelly with and spaced from the second profile leg thereof. The rotatable rod is universally journalled in the first profile leg of the second frame portion. Upon insertion of the frame portions into the door opening, the fixed rod and the rotatable rod of each threaded joint oppose each other and can be screwed together. The second leg portion of the second frame portion thereby entering the gap between the fixed rod and the second profile leg of the first frame portion, said gap being slightly wider than the thickness of the second profile leg of the second frame portion to guide said frame portions during the mounting thereof.
REFERENCES:
patent: 1180726 (1916-04-01), Keil
patent: 1715579 (1929-06-01), Thye
patent: 2773571 (1956-12-01), Kelly
patent: 2860744 (1958-11-01), Mascari
patent: 2913777 (1959-11-01), Viets
patent: 3420003 (1969-01-01), Cline
patent: 3571996 (1971-03-01), Braswell
patent: 3626639 (1971-12-01), Di Lucia
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