Openable hatch apparatus for a skylight

Details Openable hatch apparatus for a skylight Openable hatch apparatus for a skylight

E - Fixed Constructions

04

D

E04D 13/03 (2006.01) E04D 13/035 (2006.01)

Patent

CA 2186804

An openable skylight apparatus covering a roof opening having a raised cube around its perimeter. The skylight including glazing that substantially covers the opening. A frame assembly surrounds the glazing and has a depending skirt that opposes outer surfaces of the curb. A hinge, joining one side of the frame to the curb includes a bearing within a cradle that allows the frame assembly to pivot to open the skylight. The cradle has a lower and a higher end and extends by an arc greater than 180 degrees and less that a full circle between the ends. The bearing has a periphery that includes a convex surface, two chordal flat surfaces converging toward a lower convex surface and a higher convex surface diametrically opposite the other. When the bearing is rotated to a position in which the lower convex surface is at a higher elevation than the lower end of the cradle, the bearing may be pulled out of the cradle to separate the frame assembly from its hinged connection with the curb.

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