Georgetown Preparatory School - Cupola Yearbook (North Bethesda, MD)

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.Y ---P lW. , IZ!! 1 nm.-E1 5 SUPROTEX - A WATCH DOG T0 WATCH THE WATCHMAN . . The ordinary wet pipe or dry pipe sprinkler system is a watchman, but the Suprotex Sprinkler System is a watchman with a watch dog to watch the watchman. In the Suprotex Sprinkler System: It is the business of Rate-of-Rise Control-the Watchman- to detect any Fire at the start, ring a Fire alarm instantly, rush water to the sprinklers where it is held until there is enough heat for sprinkler dis- charge. Gives a chance to do things before a deluge of water goes to work. It is the business of Automatic Supervision-the Watch Dog- to sound a Fire alarm gong- if the Rate-of-Rise Control is put out of order. to sound a trouble siren- if pipes, fittings or sprinklers are damaged or tampered with. Such damage can be repaired without shutting off the protection or disturbing the Ere alarm signal. if the main control gate valve in the water supply is partially or com- pletely closed. if the water supply ahead of the main control valve is shut off. To get the complete story of Suprotex for ordinary hazards, ask for Bulletin 48. For extra hazards, ask for Suprotex-Deluge Bulletin 44. Also General Catalog 49. Automatic Sprinlzler Corp. of America YOUNGSTOWN, OHIO Offices in Principal Cities E nnuui

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Comlblimmif gf. . . Mr. james F. MC Donr1c-:ll

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