§ 7.111. Shaftway construction.
(a) The shaftways of orchestra and organ console elevators shall be of fire-resistive construction below the top landing. The inside surface of such shaftways, within the limits of travel, shall have a smooth finish without any projections or recesses except for landing entrances, guides and guide brackets, vertical slots when required for concealed guides, and junction boxes and conduits for wiring. Projections or recesses at landing entrances shall be beveled on the underside or guarded with metal plates. The angle of such bevels or guard plates shall not be less than 60° from the horizontal.
(b) The shaftways of lumber elevators shall be enclosed on all sides not used for loading or unloading with solid partitions not less than 6 feet in height and shall be flush. All points of loading and unloading shall be protected by movable bars or railings. Gates, as specified in § 7.278(c) (relating to landing gates) are required where the travel exceeds 6 feet and there are two or more landings. All shearing points shall be protected by flaring at an angle of not less than 60° from the horizontal.
(c) A pit shall be provided at the bottom of every shaftway of such depth that when the platform is at its lowest limit of travel the distance between the lowest point of the underside of the platform framing and to the floor of the pit shall not be less than 2 feet.
(d) The bottom landing openings of orchestra and organ console shaftways shall be protected by sliding doors of fire-resistive construction. If swinging doors are used they shall open outward.
(e) Railings and toeboards shall be provided at the floor levels of orchestra and organ console elevators.
(f) Steel rails shall be used for guides of stage, orchestra, and organ console elevators. Lumber elevators shall be provided with substantial guides of either wood or steel.
(g) Shaftway landing doors shall be equipped with approved locking devices.
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