Document kY94jEwLzy75a8wdKbpo1j7O

Control Equipment absolute<^TAC-I^corporation ELKHART, INDIANA Manufacturers of Temperature and Pressure-Operated Automatic Electric Controls, Mercury Switches and Safety Devices for Oil and Gas Burners No. 26A R Convoswitch on-TaoTors (Mercury Switches) and Con C tactor Quality Controls are available for the temperature or pressure regulation of almost any type of heating or ventilating installation or heating device. These switching devices, using Con-Tac-Tors, will be found long of life because of the non-deteriorating contact points wbich are.en closed within the hermetically sealed gas filled tube and because the switching action is. obtained through rolling mercury. In addition, Con-Tac-Tor instruments are designed for simplicity, depend ability, accuracy and ease of installation. Oil Burners A complete line of operation and safety devices, lasted as Standard by Underwriters' Laboratories and widely used because of their reliability and easy installation, are available to manufacturers, distributors and dealers of full automatic or semi automatic oil burners. This line includes room temperature controls, boiler controls, safetydevices, dry boiler protection and gas and oil valves. No. Ill Warpswitch Gas and Coal Burners Motor and valve controls operated from room temperature, boiler pressure, hot water tempera- . ture, or hot air temperature, may be selected to meet each individual application on forced draft coal burners, forced feed coal burners or gas burners. Unit Heaters Automatic operation of unit heaters adds ma terially to their value in the industrial and public building field in which this type of heating device. is rapidly gaining popularity. Con-Tac-Tor Con-, trols will make these systems efficiently and economically. fully automatic, ' No. 110 Shut-off Oil Valve Fan Controls With exhaust fans or forced draft fan control which is dependent on temperature, Con-Tac-Tor automatic regulating appliances, including the room temperature controls and Furnaceswitches, will be found ideal. Submit your fan control prob- lems to Con-Tac-Tor for solution. Industrial Installations Special wide range temperature controls are available for industrial installations where tempera-. tures lower than those of domestic installations are demanded. Other Applications Con-Tac-Tor is prepared to furnish various types of mercury switches for application to almost any type of switching mechanism to provide longer life for the unit. Many mechanisms so adapted may be made to automatically control equipment that is now functioning manually. Con-Tac-Tor also manufactures a complete line of Refrigera tion Controls for both commercial and indus trial units. No. 56 Aquaswitch 'No. 117 Plugswitch Send for Bulletin 100--Mercury Switches Bulletin 110--Heating Controls Bulletin 120--Refrigeration Controls 466 No. 68R Furnacesvriteh .V i Expansion Joints American District Steam Company Ocmcmi. orrKCS <u> woK9 Nokih Tonawanda.N.Y , Branches and Agents in Principal Cities A few of the many types of ADSCO Expansion Joints (At Left) ADSCO 125 lb. Single SemiGuided Expansion Joint. With anchor. No service. Traverse 4, 6, 8, 10 and 12 in. S-2 (.At Right) ADSCO Double Variator. For pressures"'up to 125 lbs. Total traverse 2 in. Not furnished with service outlets or anchorage. i* S-4T (At Right) \ ADSCO 250 lb. Double ExternallyGuided Expansion Joint. With anchor. With service. Traverse 4* 6, 8, 10 and 12 in. Per Slip. P-i (At Left) ADSCO 125 lb. Single SemiGuided Expansion Joint. With Tie Rods. With anchor. With service. Traverse 4, 6, 8, 10 and 12 in. 467 D-8 G