Static structures (e.g. – buildings) – Processes – Requiring soil work
Patent
1980-12-17
1984-12-18
Perham, Alfred C.
Static structures (e.g., buildings)
Processes
Requiring soil work
52211, 52213, 52714, E06B 156
Patent
active
044883919
ABSTRACT:
A centering clip for window frames, comprising an element of spring metal to provide a resilient clip, having a base portion attached to the top edge of a window frame, and inclined portion integrally formed with the base portion at an acute angle, with the inclined portion having a row of teeth along the free end. When the window frame is inserted into the mounting opening or mounting frame, the inclined portion of the resilient clip engages the top edge of the mounting frame and is compressed when the window frame is inserted. The row of teeth at the free end of the centering clip bites into the top edge of the mounting frame and holds the window frame against removal until the centering clip is depressed to disengage the teeth from the top edge of the mounting frame. The window frame is thus held within the mounting frame until a workman is able to nail the window frame in place. The resilience of the centering clip allows the workman to move the window frame within the mounting frame both laterally and longitudinally small distances in order to properly center. A pair of such centering clips is preferably used, both attached to the same edge of the window frame.
REFERENCES:
patent: 1570351 (1926-01-01), Hultin
patent: 2226254 (1940-12-01), Owen
patent: 2722170 (1955-11-01), Broberg
patent: 2840203 (1958-06-01), Hehr
patent: 2902727 (1959-09-01), Samolis
patent: 3378973 (1968-04-01), Tudor-Pole
patent: 3788019 (1974-01-01), Kiselewski
Kettelson Ernest
Perham Alfred C.
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