The fire pump I, Fig. 1, has a capacity of 1,348 gallons of water per minute when running at the rate of 125 feet per minute piston travel, and delivers by separate horizontal lines of 2½ - inch pipe to five lines of fire stand-pipes, each 2½ inches diameter, of galvanized wrought iron, screw-jointed, upon which are 25 2½ - inch fire valves, as follows: 10 valves on the two lines on each side of the stage, seven valves on line in corroder along dressing-rooms, eight valves on the two lines on each side of the auditorium. Just below each fire valve the fire stand-pipe is provided with a 2½ x¾ - inch tee, into which an extra strong steam metal detached lever-handle ground-key bibb may be screwed to be used for filling the fire pails.

The fire valves are 2½ inches inside diameter, and are finished and nickle-plated in all places except in basement under the stage, on the fly gallery, and in the rigging loft. Each fire valve is fitted with 50 feet of best quality four-ply rubber-lined cotton fire hose, able to stand a pressure of 300 pounds per square inch, and the hose has a 1⅛ - inch plated fire nozzle. The hose and nozzle are supported in improved hose racks, attached by pipe clamps to the fire stand-pipes. The fire pump, its automatic attachment, the fire valve, and the fire hose were subjected to tests directed by the fire commissioners. The fire pump was operated under a water pressure of 120 pounds per square inch, which the hose and fire nozzles successfully endured, Besides this stand-pipe system the Harkness wet-pipe system of automatic sprinklers was installed to protect that portion of the theater back of the proscenium wall designated as follows: Under roof, over stage, under gridiron, fly galleries and under the stage as shown by the accompanying plans, also the dressing-rooms, property-room and dressing-room for "supers" in the basement.

The apparatus comprises a cedar tank of 6,000 gallons capacity, 227 automatic sprinklers placed so as to meet the requirements of the New York Board of Fire Underwriters, one 2½ - inch and one 3-inch riser and all pipes and fittings necessary for the equipment, a separate valve for each floor or gallery, a drip pipe with suitable valve for each floor or gallery, a watchman's automatic fire alarm having one 8-inch gong placed inside and one 10 inch located on the outside of the building, a low-water alarm having an indicator in the engine-room, a 3-inch pipe connected to the main pipes of the system and carried down and through the walls of the building to the street and provided with a check valve and coupling and cap of the Fire Department Standard, a 2½ - inch supply pipe connecting the water tank to the fire pump, and a 2-inch overflow pipe for the water tank. There was a steam connection made with the roof tank, and its riser was jacketed with felt to prevent the danger of freezing. Movable fire-extinguishing appliances were also provided as follows: A number of portable copper fire extinguishers, fire axes and pick heads, sets of polished axe brackets, one fire hook 6-foot pole, one fire hook 10-foot pole, one fire hook 15-foot pole, one fire hook 20-foot pole, and contracts were made for the systematic maintenance of the electrical works of the equipment and for the monthly inspections required by the New York Board of Fire Underwriters.

PLUMBING IN THE FIFTH AVENUE THEATER, NEW YORK CITY.

Figure 10 is a vertical section showing arrangement of the main riser lines of the sprinkler system. B is the supply from the fire tank placed on raised platform above highest roof over stage; J, K, and Q are distributing risers; N and R are the horizontal trunk mains supplying the roof gridiron and substage systems respectively; P P are branches supplying the dressing-room sprinklers; S is the outside Fire Department connection on Twenty-eighth Street; A and G are gate valves, and E is an electric attachment under the roof near the riser, which is connected to an alarm bell outside the manager's office on the stage, and one large outside bell over the stage entrance. These bells ring automatically when water moves in the sprinkler system. The fire pump is not connected automatically with the sprinklers, but with the tank only, as required by the laws of the Building and Fire Departments.

Figures 11, 12, 13, and 14 are diagrams showing the arrangement of sprinkler heads L L, etc. on branches H H, etc. of main pipes T T, etc. in different horizontal planes. G G, etc., are gate valves. D D, etc. are drip cocks. F F, etc. and A are risers, B, Fig. 14, is a check valve, and C is a 2-inch riser.

Figure 11 is the roof plan at N, Fig. 10; Fig. 12 is the gridiron plan at M, Fig. 10; Fig. 13 is a plan of the second gallery at T T, Fig. 10. The plan of the first gallery is similar to it, except that branch L1 is omitted. Figure 14 is a plan of the system for the dressing-rooms for " supers," and for toilet-rooms in basement. Figure 15 is a plan of the system in one of the sets of dressing rooms (see Fig. 10), to which the others are similar.