Arizona republican., 1916-02-17
PAGE ELEVEN
" the public as an exit.

such floors shall extend without break | to the level or gradient for a distance not less than the width of the adjacent aisle.
 Sect. IT, Seats: All seats, chairs and benches shall be placed not less 1 than two feet six inches from back to back measured horizontally All seats i shall average at least 20 inches in 1 width, and no seats shall be less than | l6 inches wide If benches without arms between seats are used, the seat ! ing capacity shall be established by allowing one sitting or seat to each IS 1 inches of length.
 i All seats, chairs and benches, except chairs in boxes or loggias, shall be se- curely fastened to the floor: and if 1 the floor be level, the seats and chairs may be fastened together in sections | scurely fastened to the floor at each ! end
 ] Loose chairs and seats shall not be usec unless a special permit in writing | be secured from the City Inspector of l Buildings or the Fire Chief l There shall not be more than 13 seats l in any row between aisles, and not more than seats in a row having an aisle on one side only.
 No seat, bench or platform on which seats are placed shall be more than P ! inches in height of risers. No such seat, bench or platform shall be nearer the ceiling than feet.
 Sect. IS. AISLES AND PASSAGE WAYS
 Width of aisles: All aises having seats on both sides shall be not less 1 than feet 10 inches wide at the be- I ginning, and shall increase in width to- | ware the exits at the rate of If inch | per foot of run: or such aisles may ! faNe uniform width not less than the average width of the foregoing calcula- uon; but no wall aisle shall be less than , feet 6 inches wide and m other | straight aisle shall be less than feet 6 inches wide.
 l When main aisles are longer than 40 feet. there shall be a cross aisle leading to each required side exit Cross aisles shall be not less than four feet wide.
 Sect. 19. Passageways tS Foyers: | PassageWays and Foyers shall be in no case less than ! feet wide and shall be so arranged and appOrtiOned as to pre- vent congestion and confusion Pass aseWays and foyers which serve as means of egress (whether usual or | emergency shall be at least equal in combined width to the required width of the stairways, assagewavs and doors leading to them.
 Sect. 20. Inclines and Aisles Steps. TO overcome any difference in level l between courts, corridors, lobbies or Ipassageways on the ground floor. in cllnes shall be employed. Inclines shall not exceed one foot of rise to ten feet Of run except in the main aisles of !auditoriums where gradients of one foot rise in eight foot or run may he used
 Steps in balcony aisles shall extend 1 the full width of the aisle.
 Sect, 2l. Scuttle: Over the stage and auditorium there shall be perma nent means of access to the roof bv means of scuttles from the inside Each opening shall be not less than 2oX20 inches and there shall be a substantial permanent ladder or stair way leading thereto.
 Sect. p. Proscenium Wall and Curtain. Wall: The stage of every theater shall be separated from the auditorium by a brick wall at least Twelve inches thick. or monOlithic concrete wall at least inches thick. II the wall is more than 16 feet high or more than 40 feet long without proper lateral bracing, it shall be at I,i I'M. shall start at the basement floor. ex- cept Tn class A building or struc- ture with unpierced fireproof stage floor. The wall shall extend upward to roof or floor in class A building or structure or, in class "B'' "C' and "D' buildings or structures. to point at least four feet above the highest adjoining roof.
 There shall be not more than two openings, (eXcluding the proscenium openlng) in the procenum wall. Such opening shall not exceed 21 square feet superficial area each, and shall he provided with Underwriters Fire doors
 Above the procenium opening thero shall be fireproofed girder or other | strength to safely carry the load above.
 Sect. 2S. Curtains: The procenium opening in every theater where scenery be used shall be provided with rigid fireproof curtain of as:
 bestos conforming to the following specifications, or of equivalent ap- proved construction:
 Curtains of the rigid steel tyne shall consist of a rigid steel frame covered on the audience side with not less than No. 16 U. s, guage sheet steel, and on the stage side with Vltrlfled cellular asbestos boards at least one-inch thick. The curtain shall overlap the procenium wall (at the near side thereof) not less than F inches at each side and A inches at the top, and shall slide vertically between rolled steel guides not less than 1-4 inch thick.
 Curtains of asbestos cloth shall ba substantially woven of asbestos fiber not less than 25 per cent. and shall
 weigh not less than 1-2 pounds per square yard. All seams shall be Tapped not less than one inch and sewed in two rows with not less than 1-16 inch pure asbestos twine. At the top and bottom of the cur tain l 1-2 inch Cor larger) metal pipe shall be placed and shall be securely fastened in and covered bv the curtain. The curtain shall over | lap the procenium wall Cat the near side thereof) not less than eighteen inches at each side and 24 inches at the top, and shall be guided at each side by metallic looms or rinoS .,;d