Door frame and door assembly for a mine stopping

Details Door frame and door assembly for a mine stopping Door frame and door assembly for a mine stopping

E - Fixed Constructions

06

B

108/4, 61/53

E06B 3/50 (2006.01)

Patent

CA 1256319

Door Frame and Door Assembly For A Mine Stopping Abstract of the Disclosure A door frame and door assembly for installation in a man-door opening in a mine stopping in which the door is hinged for swinging movement on an axis extending transversely across the frame adjacent one face of the frame and adjacent the top of the frame. The hinge also mounts the door for up and down movement of the door relative to the frame. The door is of such height as to occupy a closed position in the frame inclined down from the hinge toward the other face of the frame with its lower edge bearing on the bottom of the frame and with the door at its top being engageable with and extend- ing up past the top of the frame at the one face of the frame. The door is adapted to swing up from its closed position for opening it, and to move relative to the frame at the hinge to avoid jamming and buckling of the door while maintaining clo- sure of the door upon distortion of the frame such as may re- sult from pressure on the frame in a mine stopping.

472969

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