| abstract |
The rapid and economical assembly of raked rails for stairways permitting the adjustment of the railing assembly to variable angles ranging from about 35* to 42*, to the horizontal. The top and bottom picket rails of the assembly are constituted of channel-shaped metal extrusions, the oppositely facing webs of which are broached to form spaced deformable tabs, each of which is provided with at least one opening. The opposite ends of hollow pickets of extruded metal, provided with at least one screw boss extending longitudinally on the interior thereof, are affixed to the vertically aligned tabs in said webs of the picket rails, with the free ends of the tabs extending in opposite directions. A rocking of the rails in opposite directions results in the deformation of the tabs within the confines of the picket rails to impart the desired adjustable angularity to the latter while the pickets remain vertical. The ends of picket rails are cut at an angle conforming to the desired rake angle and are fitted with fastening straps or splines which are mitered to the same angle for fastening to vertical newel posts at the terminals of the picket rails, which rigidifies the assembly at the desired rake angle. |