No permit for the storage and use of flammable motion-picture
films shall be issued for any building:
A. Which is situated within 100 feet of the nearest wall of any building
occupied as a hospital, church, school, theater or other place of
public amusement or assembly.
B. Which is occupied as a tenement house, hospital, dwelling or hotel.
C. Which is of wooden construction.
D. Which does not contain one or more separate rooms, booth included,
used exclusively for the storage and use of such film.
Storage of nitrate motion-picture film not in process or being
worked on shall be in accordance with the following:
A. Except as provided in Subsection
C of this section, amounts in excess of 25 pounds (five standard rolls) but not in excess of 1,000 pounds (200 standard rolls) shall be kept in approved cabinets or in vaults.
B. Amounts in excess of 1,000 pounds shall be kept in vaults.
C. Unexposed nitrate film enclosed in the original, unbroken, shipping
cases, conforming to I.C.C. regulations, shall be kept in a sprinklered
room; if the amount exceeds 750 pounds (150 standard rolls), it shall
be stored in a room used for no other purpose.
All examining, rewinding of reels, repairing or piecing together
of flammable motion-picture films shall be done in a booth, room or
compartment used for no other purpose and separated from the rest
of the building by fireproof partitions and self-closing fire-resisting
doors.
No celloidin, amylacetate or other similar flammable cement
or liquid in quantities greater than one quart shall be kept in a
room where flammable motion-picture films are stored or repaired.
No heat other than steam or hot-water heat and no stove, forge,
torch, boiler, furnace, flame or fire and no electric or other appliance
likely to produce an exposed spark shall be allowed in any booth,
room or compartment where flammable motion-picture films are stored,
displayed, used or repaired.
Motion-picture projectors shall not be operated except when
located in enclosures constructed, equipped and maintained in accordance
with the requirements of this section.
A. Construction.
(1) Motion-picture projectors shall be operated or set up for operation
only within an approved enclosure not less than eight feet wide, 10
feet deep and eight feet high for one projection machine and not less
than 14 feet wide, 10 feet deep and eight feet high for two machines
and not less than 60 square feet of floor space for each additional
machine.
(2) The walls and ceilings of the booth shall have a fire-resistive rating
of at least two hours. Only noncombustible material shall be used
in the wall construction, and all joints therein shall be tight enough
to prevent the discharge of smoke. The floor shall have a fire-resistive
rating of at least 2 1/2 hours and extend under and to the outside
edge of all walls. Floor-surfacing materials shall be cemented to
the supporting floor.
B. Two openings for each motion-picture projector shall be provided;
one for the projectionist's view (observation port) shall be
not larger than 200 square inches, and the other through which the
picture is shown (projection port) shall be not larger than 120 square
inches. Where separate stereopticon, spot or floodlight machines are
installed in the same enclosure with picture projectors, not more
than one opening for each such machine shall be provided for both
the operator's view and for the projection of the light, but
two or more machines may be operated through the same opening. Such
openings shall be as small as practicable and shall be capable of
being protected by approved automatic shutters.
C. Each opening shall be provided with an approved gravity shutter set
into guides not less than one inch at the sides and bottom and overlapping
the top of the opening by not less than one inch when closed. Shutters
shall be of not less than 10-gauge iron or its equivalent. Each shutter
shall have a fusible link above it, and there shall be a fusible link
located over each upper projector magazine which, upon operating,
will close all shutters. There shall also be provided suitable means
for manually closing all shutters simultaneously from any projector
head and from a point within the projection room near each exit door.
Shutters on openings not in use shall be kept closed.
D. All shelves, furniture and fixtures within the enclosure shall be
constructed of noncombustible material, except that tables may be
of wood construction with no member less than 1 1/2 inches in
its least dimension. No combustible material of any sort shall be
permitted or allowed to be within such enclosure except the films
used in the operation of the projector and film cement.
E. Ventilation shall be provided by one or more mechanical exhaust systems
which will draw air from each arc lamp housing and from one or more
points near the ceiling. Systems shall exhaust to outdoors either
directly or through a noncombustible flue used for no other purpose.
The exhaust capacity shall be not less than 15 nor more than 50 cubic
feet per minute for each arc lamp housing plus 200 cubic feet per
minute for the room itself. Systems shall be controlled from within
the enclosure and have pilot lights to indicate operation. The exhaust
system serving the projection room may be extended to cover rooms
associated therewith such as rewind rooms. No dampers shall be installed
in such exhaust systems. Ventilation of these rooms shall not be connected
in any way with ventilating or air-conditioning systems serving other
portions of the building.
F. Exhaust ducts shall be of noncombustible material and shall either
be kept one inch from combustible material or covered with 1/2 inch
of noncombustible heat-insulating material.
G. Fresh-air intakes other than those direct from the open air shall
be protected by approved fire shutters arranged to operate automatically
with the port shutters.
H. Provision shall be made so that the auditorium lights can be turned
on from inside the projection room and from at least one other convenient
point in the building.
Areas of buildings used for nitrate motion-picture film exchanges
shall be equipped with approved automatic sprinklers.