E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
108/66
E06B 1/00 (2006.01) B66B 13/30 (2006.01) E06B 1/16 (2006.01)
Patent
CA 1233701
50,988 ABSTRACT OF THE DISCLOSURE A fire resistant, elevator hatchway door entrance for wall openings up to and including 10 feet in height, including first and second side jambs and a head jamb. Each side jamb includes a pair of upstanding, oppositely facing, metallic channel members dimensioned and coupled together to define both a structural box beam and a pocket for receiving the wall which defines the opening. The bight and one leg portion of one channel member define the jamb depth and reveal, respectively, of the side jamb, and the bight of the other channel member receives and shields an associated J-strut at the wall-entrance interface. The remaining leg portion of the one channel member may cooper- ate with a member disposed on the trailing edge of the associated door panel to define a flame shield and a mechanical limit for preventing undue separation of the door panel from the side jamb.
451636
Oldham And Company
Westinghouse Electric Corporation
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