Head for passages, door and window openings

Details Head for passages, door and window openings Head for passages, door and window openings

1981-07-30

1983-06-28

Perham, Alfred C.

Static structures (e.g., buildings)

With lifting or handling means for primary component or...

Construction or component having means to engage hand or...

52204, 52 88, 52609, 52612, E06B 104

Patent

active

043898220

ABSTRACT:
The invention provides a novel beam for covering wall openings in order to facilitate constructional work at building sites. For this purpose a prefabricated beam consisting of one piece is suggested, which without any additional scaffolds being required may be placed over a wall opening as one unit.

REFERENCES:
patent: 545884 (1895-09-01), Fry
patent: 743946 (1903-11-01), Spaulding
patent: 957048 (1910-05-01), Francis
patent: 1074268 (1913-09-01), Kelly
patent: 1226743 (1917-05-01), Bowman
patent: 1698524 (1929-01-01), Allen
patent: 1990001 (1935-02-01), Ratten
patent: 2095072 (1937-10-01), Ludden
patent: 2351856 (1944-06-01), Henderson
patent: 2841254 (1958-07-01), Miller
patent: 3186400 (1965-06-01), Lunt
patent: 3286418 (1966-11-01), Radford
patent: 3421269 (1969-01-01), Medow
patent: 3750355 (1973-08-01), Blum
patent: 4069629 (1978-01-01), Piazza

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