Except as hereinafter provided, no machine or apparatus for exhibiting moving pictures shall be used or set up for use in any building or place of public assemblage when such machine or apparatus uses films of a combustible material more than ten inches in length, unless such machine or apparatus be enclosed in a booth of the following description: The booth shall be at least seven feet in height, inside dimensions. If the booth is for the use of one such machine or apparatus, the area occupied by such booth shall be not less than forty-eight square feet. If more than one such machine or apparatus is to be operated therein, an additional twenty-four square feet shall be provided. Such booth shall be constructed with a framework of iron angles not less than one and one-quarter inches by one
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Except as hereinafter provided, no machine or apparatus for exhibiting moving pictures shall be used or set up for use in any building or place of public assemblage when such machine or apparatus uses films of a combustible material more than ten inches in length, unless such machine or apparatus be enclosed in a booth of the following description: The booth shall be at least seven feet in height, inside dimensions. If the booth is for the use of one such machine or apparatus, the area occupied by such booth shall be not less than forty-eight square feet. If more than one such machine or apparatus is to be operated therein, an additional twenty-four square feet shall be provided. Such booth shall be constructed with a framework of iron angles not less than one and one-quarter inches by one and one-quarter inches by three-sixteenths of an inch thick. The adjacent iron members shall be firmly joined with angle plates of iron, and the iron members of the framework shall be spaced not more than four feet apart. Such booth shall be covered or lined with asbestos or other strong and fire-resisting material that will withstand, on a twelve-inch square sample, a center load of at least two hundred and fifty pounds, and which shall be sufficient to resist a temperature of at least fifteen hundred degrees Fahrenheit for at least thirty minutes, and after which, being immersed in water, will not lose more than fifty per cent of its initial strength. Such material shall completely cover the sides and top of the booth, shall be at least one-quarter of an inch in thickness, and shall be securely attached to the iron framework by means of iron bolts and rivets. The floor shall be covered with such fire-resisting material not less than three-eighths of an inch in thickness. All joints of any such booth and its framework shall be pointed up with asbestos retort cement. Every such booth shall have a door not less than two feet in width and six feet in height, consisting of an angle iron frame, covered with sheets of the aforesaid fire-resisting material, and attached to the framework of such booth by hinges, in such manner that the door shall be kept closed automatically at all times, when not used for ingress or egress. The windows in such booth used in connection with the machines and apparatus, and by the operators thereof, shall not be larger than is reasonably necessary to secure the desired service. The said fire-resisting material shall be provided for each window and shall be so suspended and arranged that it will automatically close the window upon the operation of either a fusible or mechanical releasing device with a fusible link attached. Each booth shall have an opening for ventilation. This opening shall have an automatically closing door, or a riveted conductor pipe to the outside of the building, or into a chimney.