Document baBN5yRZmzeMbqDpN5Qe8dpg3

Air System Equipment cf!ij"r` Hart & Cooley Manufacturing Co. Established 1901 Air Conditioning Registers and Grilles - Warm Air Registers Damper Regulators - Furnace Regulators - Pulleys - Chain Holland, Mich. NO. 75 DESIGN--FLEXIBLE FIN TYPE with TURNING BLADE VALVE to provide DOUBLE DEFLECTION. Also without Valve as Grille or Intake CONTROL OF AIR FLOW IN TWO PLANES Instant Adjustment of Air Flow (Up, Straight or Down) Is obtained by turning the regulator on the register face., to the proper setting with a key furnished with each register. When the valve is opened, as shown at the left, the individual valve louvres automatically stop in position to provide the proper air flow--Up (Fig. 1) for cooling systems to avoid drafts; Straight (Fig. 2) for ventilating systems; Down (Fig. 3) for heating systems to prevent stratification. When the valve is closed, as shown at the left below, it completely stops the flow of air. Air Flow Can be Quickly Adjusted Sideways No. 75 Design has a flexible fin-type face. Each fin may be twisted individually with a wrench furnished with each register or grille to provide any desired sideway deflection of the air flow. Greatly Reduced Turbulence and Resistance Figs. 1, 2, and 3 show the air flow with No. 75 Design; Fig. 4, with the conventional register. Compare the turbu lence in the stackhead of the latter with the smooth flow obtained with No. 75 Design. So efficient is No. 75 Design that there is actually less resistance with this register, using a standard stackhead, than if no register at all were used. Fig. 1 Fig. i Fig. 3 Fig. 4 1088 Hart & Cooley Manufacturing Co. Air System Equipment Registers Grilles Velocities with No. 76 Design EVEN DISTRIBUTION OF AIR OVER ENTIRE FACE The turning blade valve distributes the air evenly with a uniform velocity over the entire face, as shown in Figs. 1, 2, and 3 on the preceding page. Note how the air rushes through the upper part of the face with a conventional register, as shown in Fig. 4. Since the entire face of No. 75 Design register is utilized for discharge of air, smaller and in some cases fewer registers can be used without causing excessive velocities. Prevention of Streaked Ceilings--With either UP, STRAIGHT, OR DOWN deflections the air does not strike the ceiling immediately in front of the register; streaked ceilings are thus avoided. Excellent Concealment of Duct--The depth and close spacing of the vertical bars, combined with the valve, provide almost complete concealment of the duct, adding considerably to the pleasing appearance of the register face. Special Settings---No. 75 Design functions equally well when located at the end of a horizontal duct or. by installing it upside down, when the air is delivered to it from above. AVAILABLE IN FOUR TYPES With Turning Blade Valve--No. 751 Register (Left) has Sponge Rubber Gasket and % in. turndown. No. 754 Register (Right) is similar except has in. projection. Without Valve--No. 750 Grille (Left) has $^6 n- turndown. No. 757 Intake (Right) has % in. projection. FOUR TYPES OF INSTALLATION FRAMES AVAILABLE No. 75 Design items can be used with or without installation frames. No. 3 Sidewall Stud Frame (illus trated), fastens directly to stud, forming a solid, streak-proof foundation for register. No. 8 Frame is similar for baseboard use. No. 5 Baseboard Stack Frame provides inexpensive, streak-proof installation. No. 2 Band iron Frame provides for connecting register to stackhead. CATALOG 46 showing the complete H & C line, available upon request. 1089