Document bBgzLVYxZqwO6gVz0kz3918qO

Ventilators W. F. Hirschman Go., Inc. Main Office: Buffalo, N.Y. Works; Le Roy, N.Y. Ngw York, N. Y,, 205 East 42nd Street Boston, Mass., 37 Pearl Street Detroit, Mich., 07 W. Warren Ave. MANUFACTURERS ROOF VENTILATORS Principle of Operation of Wind-Electric Ventilator--When the wind is blowing sufficiently to remove the desired amount of air from the build ing being ventilated, the electric motor is still. In stantly, when the wind turbine moves below a previously determined number of revolutions, the electric motor starts automatically and carries the load. The entire apparatus is noiseless. Special Advantages--Besides the regular auto matic operation the motor may also be so connected as to give a maximum exhaust capacity (running full speed) by manual control. Effico Rotary Bali Bearing Ventilator Installation, Wind Driven (only) The Effico H'ind Electric Also Hoe the Same Artistic Lines and Pleating Appearance. Lowest in Height of Rotary Ventilators by Over 50 percent Average. Detail of Effico Wind Electric Rotary Balt Bearing Ventilator Full Automatic Note.--Details of Wind Identical with Exception Driven (only) Ventilator of Motor Unit are noth Wmd Electric sad Wtad Driren ,,BEnAtRa1NdCvlV__E_ aN_jT_IL__AuT:_O__RS Wind Velocity. Bold Type, is Regularly Furnished Wind-Electric Capacity Mile* pu Lu Temperature Difference in Degree* Fahrenheit in Building and Outside 0 10 20 30 0 10 20 30 0 10 20 30 12-In. Ventilator 18-In. Ventilator 24-In. Ventilator 5 10 14 3*0 440 430 . 525 480 600 515 600 635 560 625 700 600 910 1050 850 1050 1200 950 1200 1300 1040 1300 1400 1020 1600 1490 1900 1800 2230 1780 2100 2460 1900 2300 2590 30-In. Ventilator 36-In. Ventilator 42-In. Ventilator 5 10 14 5 10 14 1560 2300 2300 3210 2900 3650 2690 3490 3850 2900 3600 4020 2300 3400 3250 4200 4040 4800 3810 4720 5300 4100 5050 5600 3150 4500 4390 5700 5600 6700 5010 6300 7400 5500 6800 7800 48-ln. Ventilator 54-In. Ventilator 60-1n. Ventilator 4000 5900 6700 7400 5900 7900 8900 9050 7000 9000 >0000 10500 5100 7300 8450 9500 6500 9300 10600 1.1900 7850 9900 11000 11500 9200 12500 14000 14500 9500 11800 12500 12800 1400 14000 15000 16000 Effico Wind-Electric Ventilator, Automatic Patented May 20, 1922; March 20, 1928; August 21. 1928. The Effico Wind Elec Ventilator Site* Dimension* in nches--{See Diagram Above) ThicknessofMetal Corre sponding to Those in Table Opposite A iB C D Actual Size of Height Diam. d Ventilator for Base Wind Elec. Typei Blades Band E Height to Blades Gauge G Cop- Oz. Cowl Base Hp. oi Motor 12 18 24 30 36 42 48 54 60. 14 19 31 37 43 49 55 61 1 20 26 38 ; 40 44 50 56 | 62 | 66 8 10 14 14 18 22 24 24 24 2I>/, 28'h 40 50 60 68 76 86 98 32 32 40 42 45 51 51 51 55 24 22 16 74 22 18 24 20 18 24 20 20 22 18 24 22 18 24 22 18 24 22 18 24 22 18 24 1/30 1/6 1/4 tric Ventilator, Full Automatic Recommended for those, installations which require a definite minimum ex haust at all times or which may require an unusually heavy exhaust at inters mittent periods. This is the regular Effico equipped with an auxiliary elec trically operated fan placed in the ventilator sixes and___ d_i-f-fe--r-e-n-ce .ravwtinuge.. vMo 4gtt,,wwa, ur air wiuna me imuts oi given 'wh Vi u j miles per hour wind and 10 deg. temperature aj fnooea r"t ina-jSL~ecac.tint*c. WiU ce+xh/waus&t minimum volume regardless oojftemperature difference or wind velocity. Other capacity can be RsuupnpnliAed aahnHd thne vennttiitlaaftnopr i;s adjustable to any constant capacity after installation. throat just below the regular fan. The throat is slightly enlarged to allow ifvoir cthuee mmuotor. For F Electric Ventilator Non-Automatic see second page following: 870 W. F. Hirschman Co., Inc. Ventilators "Effico" Wind-Driven Roof Ventilators The Effico Ventilator Consists of a winddriven head to which suction blades are permanently connected (on the underside) making an efficient exhaust fan. Rotation of the head creates an exhaust suction in Suggested Specifications The roof ventilators shall be of the sizes as shown in plans/[square base] [round base] style to be made of [Tuncan] [Copper], [The pneumatic damper motor to be supplied with these units]. They shall be the Effico Internal Louver Unit Ventilators a3 * ' * ..... TT TT--- ....... f-rt lur the throat of the ventilator. There are no Effico Louver Unit Sizes and Dimensions moving parts. Galvanized Steel Code for Telegraphy Bearings.--Effico Bearings, are full ball bearings, are solidly enclosed and oilflooded (also dust and acid proof). They are as sturdy as the best automobile bearings, and will run in a dry state for years, but we oil-flood them as an extra precaution. Effico Internal Louver Unit Ventilators - The Effico internal louver unit comprises J the Effico rotary ball bearing ventilator head constructed with a specially short base, or neck. In this base is built a circular multiple blade louver' damper. The damper is carefully balanced and Dimensions. Inches A BC D E Gauge 35 03 Net Wght., Lb. <5- i a <3 to18 20 24 30 30 36 36 42 42 48 48 54 54 60 60 66 66 72 72 80 84 92 96 116 14 14 18 22 24 24 24 30 30 36 45 28>/2 23 24 24 40 30 72 22 50 32 22 20 60 37 22 18 68 43 22 18 76 43 27. 18 86 43 22 18 98 43 20 18 103'/2 49 20 18 114 54 20 18 130 54 18 16 153 54 18 16 90 140 190 225 350 400 600 710 800 880 1050 1200 16 vale 18 valet 20 vive 24 varve 24 vetch 24 vax 24 vaI3 24 valor 24 vamp 24 vane 24 vang 24 van- For round bases, "E" dimension remains the same. For capacities note preceding page. heavily constructed. The blades lap and are fitted in a circular frame. It is adapt able for manual control, but is intended for a thermostatic control system. The roof base is very low, is part of this unit and is supplied with either the square or round base. The roof base and the ventilator head are connected by means of angle iron com panion rings, which give' solidity and facilitate the taking down of the ventilator when required. Each ventilator neck has also a tight fitting door to give free access to the louvers and to the operating motor. The operating motor is suspended under neath the damper to a cross brace. The object of the specially low base and the low roof base is to make the entire unit as low to the roof as possible. Effico Louver Dampers Made of stretcher leveled sheet steel. The pneumatic damper motor is supplied and installed with these units unless not desired. (Note specifications below). Effico Louver Unit Low Height. The Effico louver unit sets very low (note dimensions at right). Patented May 20, 1922; March 20, 1928. Height above Coping Louver Unit "C" dimension should be above coping. Note above. Heads Only. Effico Heads without impers are also supplied. Open Closed The Multiple Circular Louver Damper in NeckoJ Ventilator n*p*r.ITY--Exhaust capacity same as Effico Head- 871