US848803A - Means for controlling the flow of air. - Google Patents

Description

No. 848,803. PATENTED APR. 2, 1907.

J..H. BRADY.

MEANS FOR CONTROLLING THE FLOW OF AIR.

APPLIUATION FILED MAR. 22, 1906.

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79 M 20- 21 23 Qt Yl/Ilnmsrs? Jseph H..Brady No. 848,803. PATENTED APR. 2, 1907. J. H. BRADY.

MEANS FOR CONTROLLING THE FLOW OF AIR.

APPLICATION FILED MAR.22,1906.

2 SHEETSSHEET- 2.

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Joseph H Brady f m zzw UNITED STATES PATENT OFFICE.

JOSEPH H. BRADY, OF KANSAS CITY, MISSOURI.

MEANS FOR CONTROLLING THE FLOW OF AIR;

specificatiodi of Letters Patent.

Patented A ril 2, 1907.

Application filed March 22, 1906. Serial No 307,536-

ling the volume of air passing through an airshaft, means for diffusing said air so that it will not escape merely from the upper portion of the air-shaft outlet, but will be equally distributed throughout the entire area of said outlet, and means for deflecting'the air as it escapes from. the outlet, so that it maybe turned in any desired direction.

The invention is applicable to systems for circulating either hot or cold air, and the parts so cooperate that the volume, distribution, and direction of the air as it escapes from the outlet may beregulated at will.

The invention consists in the novel construction,combination, and arrangementof' parts hereinafter described, and pointed out in the claims, and in order that it maybe:

fully understood reference will now be made to the accompanying drawings, in which Figure 1 represents a vertical central 'sec-' tion of an air-shaft. provided with my iI'n-. provements.

v Fig. 2 is a front elevation of the discharge end of said shaft provided with my improvements. Fi 3 is a broken transverse section taken on ine III III of Fig. 1.

Fig. 4 is an enlarged detail front elevation ofmeans for securing the deflectors at any point of their adjustment. Fi 5is an enlarged vertical section taken on hne V V of Fig.2.

1 designates anair-shaft provided with a metallic lining 2, divided at'its upper portion by a diffuser of peculiar form consisting of metallic plates 3, the lower portions of which extend downwardly into the air-shaftvariable distances, while their upper portions are arranged in the form of concentric curves and }terminate in vertical alinement, as shown in By making the lower portion of the plates of different lengths all tendency of hot air to rush to the upper rear portion of the air-shaft is overcome, and each division will receive its proper share of air, so that the latter will be difl'used throughout the entire area of the shaft-outlet.

outer portion. 13.

fto frame 15.

ranged in two series of three blades each, .provided at their rear sides with pintles l8, 1

4 designates a series of dampers pivotally secured to the plates 3 andthe curved upper portion 4 of the air-shaft for regulating the volume of air as it flows outwardly through the deflector hereinafter described, and in order that said dampers may for convenience be simultaneously operated I connect them to an adjusting-rod 5 through the instrumentality of links 6 and sleeves 7. Sleeves 7 are adjustably secured to the rod by means of setscrews 8. Thus each sleeve may be properly 4 adjusted, so that when the rod is drawn out wardly far enough all of the dampers will completely close the air-passages: between the plates 3, and thus prevent further circulation of air through the shaft.

Rod 5 extends through sleeves 9 and 10 in the front and rear walls, respectively, of the shaft, and its rear terminal is provided with a nut 11. Rod 5 is adjusted inwardly or outwardly by a nut 12, engaging its threaded The rod is prevented from turning with'nut 12 by set-screws 8. Nut 12 is held from moving longitudinally with the adjusting-rod by means of a bracket 1'4, engaging its front and rear sides and seouredto the face. of a rectangular metallic frame-15, surrounding the flaring outlet 16 of air-shaft 1.

the air escapes from outlet 16 it may be d'e flected in any) direction by a deflector con- Sisting of blades 17, the central oneof which is rigidly secured at its upper and lower ends Its companion blades are arpivotally mounted in the upper and lower portions of 'frame 15.

taneously moved either to the right or left, I provide them with depending stems l9, pivotally secured to a connecting-bar 20, the two outer stems being provided with nuts'21 for supporting the bar, while the central stem extends through a slotted segment 22 and is provided with a clamping-nut 23, adapted to frictionally engage the under side-of segment 22, and thus reliably hold the blades in their adjusted position. Segments 22 are secured to the. front. lower portion of frame 15 by screws 24:.

In practiceas the air ascends shaft 1 it will be equally divided by the diffuser, which causes it to discharge evenly throughout the area of outlet 16, so that its entire volume will not, as heretofore, impinge against the In order that the blades comprising each series may be simulupper curved portion of the shaft and flow in this manner from outlet 16. By thus diffusing the air before permitting it to escape into the apartment communicating with the airshaf-t it will be more thoroughly distributed throughout said apartment, and consequently prove much more effective than if permitted to escape whenv compact. As the air discharges from outlet 16 it may be directed to the right or left or straight ahead by blades 17 which have been previously set to divert the air in the desired direction.

From the above description it is obvious that I have produced means for re ulating the flow of air, so that the greatest e .ciency will be obtained therefrom, and While I have shown the preferred construction of my device I of course reserve the right to make such changes as properly fall within the spirit and scope of the appended claims.

. Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a device of the character described, the combination with an air shaft having an outlet, a diffuser dividing said shaft and con sisting of plates for directing the air to the outlet, dampers adjustably secured to said plates, a rod for adjusting said dampers provided with a threaded end, means for preventing said rod from turning, a nut engaging the threaded end of the rod for moving the latter inwardly or outwardly, a bracket for preventing said nut from moving longitudinally with the rod, and a rectangular frame surrounding the outlet and carrying said bracket.

2. In a device of the character described, the combination with an air-shaft having an outlet, a deflector arranged at said outlet and consisting of a plurality of adjustable blades arranged in two or more series, a connectingbar uniting each series so that they may be independently'adjusted, a slotted segment arranged adjacent to each connecting-bar, a stem extending through each connectingbar and slotted segment, and clamping-nuts engaging the stems.

In testimony whereof I afiix my signature in the presence of two witnesses.

JOSEPH H. BRADY. Witnesses:

F. G. FISCHER, J. MOORE.

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