. Reliable vacuum and vacu-vapor heating equipment . n the desired vacuum in a heat-ing system. When the proper degree of vacuum iscreated, the Automatic Electric Switch, by meansof the Vacuum Controller, automatically stops thepump. When the vacuum is lowered 2 inches, thepump is automatically started. The action of the Vacuum Controller is positive,and the proper degree of vacuum is always main-tained. It is easily adjusted for any range ofvacuum. The Automatic Electric Switch has onlyone knife blade, and a perfect connection is assured. The Automatic Electric Switch is very sub-stantially m
. Reliable vacuum and vacu-vapor heating equipment . n the desired vacuum in a heat-ing system. When the proper degree of vacuum iscreated, the Automatic Electric Switch, by meansof the Vacuum Controller, automatically stops thepump. When the vacuum is lowered 2 inches, thepump is automatically started. The action of the Vacuum Controller is positive,and the proper degree of vacuum is always main-tained. It is easily adjusted for any range ofvacuum. The Automatic Electric Switch has onlyone knife blade, and a perfect connection is assured. The Automatic Electric Switch is very sub-stantially made, and is mounted on a neat slatepanel. The Vacuum Controller is constructed ofheavy bronze, and is mounted with AutomaticElectric Switch on a wood panel. The Automatic Electric Switch and VacuumController No. 1859 is very simple; has no parts toget out of order; and enables RELIABLE Electric Vacuum Pumpsto be operatedvery economi-cally. The Auto-matic ElectricSwitch andVacuum Control-ler is included withall RELIABLEReturn Line Elec-tric Forty-Four VACUUM HEATING EQUIPMENT RETURN LINE STRAINER A Strainer of largecapacity is furnishedwith RELIABLE Re-turn Line Outfits. Alla i r and condensationpasses through thisStrainer, which preventsscale, grit, and otherforeign matter enteringvacuum pump. The Strainer usuallyrequires cleaning onlyonce each heating sea-son. It is cleaned bysimply removing coverplate, opening dischargevalve (furnished) at bot-tom, and flushing withwater.
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Keywords: ., bookcentury1900, bookdecade1910, bookidreliablevacu, bookyear1915
