(57) A door frame for bricking in, comprising two side members (2) and a doorhead member
(1), the side members (2) and the doorhead member (1) being made from sheet metal
shaped to U-like form, the open sides of which members being directed outwards, which
members may be connected in the upper corners without mitre, whereby the adjacent
ends of the members have been cut off or cut in complementary, whereby the doorhead
member (1) is provided with one or more lips (3), fitting in one or more slots (4)
in the side member (2), which lip or lips (3) is or are bent or turned after connecting
in order to fix the connections, whereby the legs of the U-like members are provided
with turned in ends, so that channels are formed facing inwards and whereby locking
slots (5) for the ends of the doorhead member (1) are provided in the innerwalls of
the channels of the side members (2).
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