Document k9qzEoZ3Mm6XkyGQJVXaYbO0E

Temperature Control Johnson Service Company Milwaukee, Wis. BRANCHES GREENSBORO. N. C.. Daily News Building. P. O. Box No. 617 ALBANY. N. Y., 4 Ramsey Place KANSAS CITY. MO.. 411 East Tenth Street ATLANTA. GA.. 210 Bona Allen Building MILWAUKEE. WIS.. 149-159 E. Michigan Street BALTIMORE. MO., 911 Cathedral Street LOS ANGELES. CAL.. 428 Union Insurance Building BOSTON. MASS.. 31 Waltham Street MINNEAPOLIS. MINN.. 922 Second Ave.. South BUFFALO. N. Y.. 503 Franklin Street NEW YORK, N. Y., 28 East Twenty-ninth Street DALLAS. TEXAS. 2505 Commerce Street PHILADELPHIA, PA.. 12th and Cambria Streets CHICAGO. ILL.. 1355 W. Washington Blvd. PITTSBURGH. PA.. 10 E. North Diamond St.. N. S. CINCINNATI. OHIO. 1113 Race Street PORTLAND. ORE.. 404 Postal Building CLEVELAND. OHIO. 2142 East 19th Street SALT LAKE CITY, UTAH. 610 McIntyre Bldg. DENVER. COLO.. 1230 California Street SAN FRANCISCO, CAL.. 814 Rialto Building DES MOINES. IOWA. 1118 Grand Avenue SEATTLE, WASH.. 473 Colrnan Building DETROIT. MICH.. 427 Brainard Street ST. LOUIS. MO.. 2328 Locust Street INDIANAPOLIS. IND.. 312 E. Ohio Street CANADIAN REPRESENTATIVE Johnson Temperature Regulating Company of Canada. Limited OFFICES CALGARY. ALTA. 605 Second Street. West VANCOUVER. B. C.. 550-6th Avenue. West TORONTO. ONT.. 100 Adelaide Street. East WINNIPEG, MAN.. 259-261 Stanley Street Products and Services Engineers and Contractors for the Control of Temperature or Humidity for any purpose and oyer every range used in manufacturing purposes or buildings, furnishing and installing: ' Temperature Controlling Apparatus for any and all kinds of heating and ventilat ing systems. Temperature Controlling Apparatus for any industrial process requiring the medium of heat. Control of Humidity in industrial pro cesses requiring artificial humidity. Temperature Control of hot water tanks and all liquids. Pneumatic Room and Insertion Ther mostats and Humidostats. Electric Room and Insertion Thermo stats and Humidostats. "Sylphon" Metal Diaphragm Valves. High Grade Dampers of all Shapes and sizes. Low Pressure, Limited Capacity, Elec tric Air Compressors. Low Pressure, Limited Capacity, Hy draulic Air Compressors. ^fUr and Water Reducing Valves. Pneumatic Switches or Push Buttons. Control of Temperatures of refrigerating and cold storage plants. Thermostat Control of electric motors on automatic refrigerating machines. Manufacturers of Thermostats and Other Apparatus for the Control of Temperature and Humidity, including: Johnson All-Metal Thermostats Every Johnson Thermostat is ALLMETAL' throughout, having no soft or hard rubber parts to deteriorate and become inoperative. Every thermostat exquisitely made and thoroughly tested for accuracy, efficiency and durability. 794 Johnson Service Company Temperature Control Johnson Intermediate or Graduated Action Thermostat This thermostat has an'all-metal movement, giving true graduated motion to mixing dam pers or valves. It holds the valves and dampers in an intermediate posi tion to maintain the temperature of the room accurately within one degree above or below the setting of the ther mostats. This thermo stat is best suited for all systems of heating and ventilating except single Model Intermediate Gradual Acting Thermostat pipe gravity steam systems. The Johnson positive movement is manufactured for use in connection with single pipe gravity steam systems. * Johnson Compound Thermostat The Johnson All-Metal Compound Thermostat combines the feature of both the Positive and Intermediate and is applicable for control of valves or dampers where certain units are to be operated positively and others inter mediately at an interval of a few degrees in temperature. Johnson Dual or Two-Temperature Thermostat The Dual, or two-tempeiature Thermo stat provides for a daytime temperature (usually 70) and a night-time temperature (35 to 50), as desired, for all or some of the rooms in a building, simply by the manipulation of a single push button by the engineer or other person in authority. It is an all-metal thermostat and operates valves and dampers with a gradual motion holding them in an intermediate position to maintain the temperature of the room accurately within one degree above or below the setting of the thermostat. It is a factor for the greatest economy in school buildings, a number of rooms of which are occupied at night as well as day, and for any buildings in which some of the rooms are occupied only at certain times, such as churches, auditoriums, masonic temples and lodges. Thermostat Covers The covers which conceal the thermo stat proper are small,' inconspicuous and very neat in design and workmanship. There are two distinct styles: one called the R type and one called the P type. The R type is a die-casting, very beautifully designed and used generally in residences and other Model P Cover AWx*'xlVi" handsomely decorated buildings. The P type is a pressed metal cover, very finely finished but not as orna mental and artistic as the R cover, and-used more generally in schools, office buildings, hospitals and places where simple and neat design is desired rather than artistic and ornamental.