. The American florist : a weekly journal for the trade. Floriculture; Florists. Sngtnttring Rni'.: HEATING GREENHOUSES AT NATIONAL SOLDIERS' HOME, WASHINGTON, D. C—Fig. 8. (Prom EngineeriDg Review.) The piping in the palm house consists of twelve 11,4-inch wrought iron coils, containing about 3,000 feet of pipe, hung on the walls with adjustable clamp hangers fastened to angle iron uprights. Details of these coil connections and coil hangers and also of the coil connec- tions in the vestibule are shown in Fig. 1. The floor of the vestibule or lobby, through which the building is entered, is e
. The American florist : a weekly journal for the trade. Floriculture; Florists. Sngtnttring Rni'.: HEATING GREENHOUSES AT NATIONAL SOLDIERS' HOME, WASHINGTON, D. C—Fig. 8. (Prom EngineeriDg Review.) The piping in the palm house consists of twelve 11,4-inch wrought iron coils, containing about 3,000 feet of pipe, hung on the walls with adjustable clamp hangers fastened to angle iron uprights. Details of these coil connections and coil hangers and also of the coil connec- tions in the vestibule are shown in Fig. 1. The floor of the vestibule or lobby, through which the building is entered, is elevated about four feet above the floor of the palm house, which is clearly shown in elevation. Fig. 2. The 4-inch high pressure main, which supplies the heat for the palm house, also supplies steam at fifteen pounds pressure through a 2-inch connection to a 400 H. P. National water heater, manufact- ured by the National Pipe Bending Com- pany, placed in the heater room, to which the mains running through the various houses are attached. All of the hot water pipes except those in the violet house, which are 2-inch wrought iron, are 3y2-inch cast iron pipe. They are located under the benches and are supported by cast iron pipe chairs, which in turn rest on brick piers. The arrangement of these pipes is clearly shown in a cross section through the plant house. Fig. 3, which is typical of the general arrangement. At tne extreme end of each coil of the hot water heating system, patent auto- matic air headers are placed, by the use of which the air is automatically expelled from the pipes. The use of these headers obviates the necessity of open tanks and pipes standing above the tables taking up plant space, which are unsightly in appearance and frequently allow the hot water to overflow, destroying the plants around them. There is about 3,500 feet of cast iron pipe in the various houses, while the violet house contains200feet of wrought iron pipe. A detail of the expansion tank i
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfloriculture, bookyea
