Fixture for use in the formation of a discharge opening of a fod

Details Fixture for use in the formation of a discharge opening of a fod Fixture for use in the formation of a discharge opening of a fod

1976-01-26

1977-09-13

Perham, Alfred C.

Static molds

Uniting preform with molding material

Preform supported by hole or recess in mold wall or surface

52192, 52204, 52701, 249 39, E06B 104

Patent

active

040476910

ABSTRACT:
The fixture is used in the formation of a discharge opening of a fodder silo of reinforced concrete during the placing of said concrete. The fixture comprises a form frame which consists of a plurality of parts which are adapted to be taken apart. The form frame is adapted to define said discharge opening during the placing of said concrete. Anchors are detachably connected to said form frame and adapted to carry reinforcements for reinforcing said concrete. Said form frame is adapted to be disconnected from said anchors when said concrete has been placed. When said concrete has been placed and said form frame has been disconnected from said anchors, the latter are adapted to carry mounting means for mounting a door for closing said discharge opening.

REFERENCES:
patent: 806832 (1905-12-01), Perrot
patent: 1044533 (1912-11-01), Johnston
patent: 1130307 (1915-03-01), MacCallum et al.
patent: 1168156 (1916-01-01), Brubaker
patent: 1341533 (1920-05-01), Atkins
patent: 1519264 (1924-12-01), Reichert
patent: 1642552 (1927-09-01), Millice
patent: 1882942 (1932-10-01), Ross
patent: 2466549 (1949-04-01), Landine
patent: 2557631 (1951-06-01), Callan
patent: 3048946 (1962-08-01), Hawk et al.

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