[Ord. No. 687 §1001, 11-1-1960]
The word "film" in this Article refers to motion picture film
having a cellulose nitrate base. Cellulose acetate film, marked "safety
film" is exempt from the provisions of this Article. No person shall
store, keep or have on hand more than twenty five (25) pounds (about
five thousand (5,000) feet of 35mm film) without a permit.
[Ord. No. 687 §1002, 11-1-1960]
Every motion picture projector using nitrocellulose film shall
be enclosed in a booth not less than eight (8) feet wide, ten (10)
feet deep and seven (7) feet high for two machines.
[Ord. No. 687 §1003, 11-1-1960]
The walls and ceiling of the booth shall be built of brick,
tile or gypsum blocks plastered on both sides, or of concrete, or
of a rigid metal frame, properly braced, and sheathed and roofed with
sheet iron of not less than No. 20 U.S. gauge metal, or with one-fourth-inch
hard asbestos board securely riveted or bolted to the frame, or two
(2) inches of solid metal lath and cement or gypsum plaster. All joints
shall be sufficiently tight to prevent the discharge of smoke. noncombustible
acoustical material may be used on ceiling and walls, when applied
directly to the plaster. Floor of booth shall be at least equal in
fire resistance to that of the type of wall used.
[Ord. No. 687 §1004, 11-1-1960]
A.
Two openings for each motion picture projector may be provided. One
for the operators view shall be not larger than two hundred (200)
square inches, and the other through which the picture is projected
shall be not larger than one hundred twenty (120) square inches. Each
opening shall be provided with a gravity shutter of not less than
No. 10 gauge iron or its equivalent, overlapping opening not less
the one (1) inch on all sides, when closed and arranged to slide in
grooves. A release to be provided over each shutter and over each
upper projector magazine. Manual release shall be provided for operation
of all shutters simultaneously from a point near each exit door.
B.
The booth shall have at least two exit doors, each not less than
thirty (30) inches wide end six (6) feet high, protected by approved
self-closing fire doors.
[Ord. No. 687 §1005, 11-1-1960]
All shelves, furniture and fixtures within the booth shall be
constructed of incombustible material, and no combustible material
of any sort whatever shall be allowed to be within each booth except
the films used in operation of the projector.
[Ord. No. 687 §1006, 11-1-1960]
A.
Mechanical exhaust system, if provided, to draw air from each arc
lamp housing and from once or more points near the ceiling and to
have a capacity of not less than fifteen (15) nor more than fifty
(50) cubic feet permitted for each arc lamp plus two hundred (200)
cubic feet per minute for the enclosure itself. System to exhaust
directly to outdoors through incombustible ducts, preferably without
dampers, having an unrestricted cross sectional area equivalent to
an opening ten (10) inches in diameter. If it is necessary to include
dampers, they shall be of a hinged and weighted type arranged to open
upon operation of a suitable automatic releasing device. Ducts shall
not be inter connected with ventilating or air conditioning systems
serving other portions of the building.
B.
If natural draft ventilation only is provided, outlet to be not less
than twelve (12) inches in diameter leading from the center of ceiling
and exhausting directly to out doors.
C.
Clearance between the exhaust duct and unprotected combustible material
to be either not less than one (1) inch or exhaust duct covered with
one-half (1/2) inch of noncombustible heat insulating material.
D.
Fresh air intakes other than those direct to the open air shall have
an area of not greater than seventy-two (72) square inches and may
be located in side or rear walls of enclosures and not more than three
(3) inches above the floor. Such intakes to be protected by approved
gravity shutters as required for other openings.
[Ord. No. 687 §1007, 11-1-1960]
An approved film cabinet shall be provided inside booths where
the amount of film exceeds forty (40) pounds. Cabinets having a capacity
of over fifty (50) pounds of film shall be provided with a vent from
each compartment to the outside of the building. All films not being
used shall be kept in the cabinets or in I.C.C. shipping containers
but not over forty pounds of film shall be permitted to remain in
the shipping containers.
