US1128085A - Ventilator. - Google Patents

Description

G. H. WILLIAMS. VENTILATQR. APPLICATION IILED OCT. 17, 1913.

1, 1 2,05. Patented Feb. 9, 1915.

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CARL HENRY WILLIAMS, 0]? B'UFFALQ, NEW"? YORK.

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T all whom it may concern Be it known that I, CARL HENRY WIL- LIAMS, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented new and useful Improvements in Ventilators, of which the following is a specification.

T his invention relates to the class of ventilators comprising a horizontal hood or cowl rotatably mounted on an air shaft or pipe and containing means for condensing the wind as it enters the hood, in order to increase the force of the draft through the ventilator and effectually withdraw the foul air from the air shaft.

The object of my invention is to improve such ventilators with a view of simplifying their construction, reducing their cost and increasing their efficiency.

In the accompanying drawings: Figure 1 is a longitudinal section of the ventilator. Fig. 2 is a front viewthereof. Fig. 3 is a rear view of the same. Fig. 4 is a perspective view of the deflectors removed from the hood and separated to more clearly show their construction.

Similar characters of reference indicate corresponding parts throughout the several views.

A. indicates the horizontal, cylindrical hood or cowl of the ventilator which is open at both ends and preferably provided at its front end with the usual flaring mouth or wind-deflecting flange D and on its rear portion with the customary vane G, which may be stiffe ed by stay-wires G On its underside the hood has the usual neck B communicating with its interior and overlapping the fixed upright air-shaft or pipe C on which the hood is rotatably mounted by any suitable means. In the construction shown in the drawings, this neck carries in ternal braces or bridge-pieces 7' and 7c and the air shaft C carries similar bridge pieces Z and m, and an upright shaft H is suitably fastened to the upper bridge pieces j and k and iournaled in the lower ones Z and m.

Within the front or inlet portion of the hood A are located a plurality of wind deflectors E, F, F, arranged lengthwise of the hood and preferably having approximately the form of hollow conical sections the concave sides of which face the wall of the hood. Three of such deflectors are shown in the drawings, the two deflectors F, F being located at opposite sides of the Specification of Letters Patent.

Application filed Gctober 17, 1913.

Patented Feb. 9., Mi l Serial 1 10. 795,691.

hood, while the deflector E is arranged be tween the upper portions of said side-deflectors F. The apexes of the several deflectors meet approximately in the axis of the hood near its inlet end, and from this point. the deflectors diverge rearwardly and extend outwardly to the surrounding wall of the hood, their outer edges 6 and 9 being riveted. or otherwise secured to the hood. The deflectors are fastened to the interior of the hood only at their longitudinal edges, leaving draft passages or openings bc tween their curved rear ends and the wall of the hood. The contiguous sides of the forwardly-converging deflectors are likewise fastencd together at c and d.

The lower front portion of the hood below the deflectors E and F is tightly closed by a shield preferably composed of sections N which meet in a vertical joint Z1 and are respectively stamped integral with the side deflectors F to form downward extensions thereof. These shield sections may be soldered or otherwise fastened together at their meeting edges while their outer edges may be likewise secured to the wall of the hood, thus forming with the deflectors E and F a water-tight covering over the up per end of the neck B and the air shaft C.

As shown, the side deflectors F preferably extend rearwardly to or somewhat be yond the rear side of the air shaft C to prevent water from dripping from the rear ends of the deflectors into said shaft.

In the use of the ventilator, the wind. entering the front end of the hood passes between the deflectors E and F and the surrounding wall of the hood and escapes at the rear end of the hood. withdrawing the foul air from the air-shaft C. In passing through the open-ended fiues formed between the defiectors and the hood, the wind is condensed. or compressed and on emerging at the rear ends of the deflectors it is allowed to expand, thereby materially increasing the force of the draft and the eflido not therefore wish to be limited to the use of three deflectors, nor to the particular details shown in the drawings as the same may obviously be modified within the scope of the appended claims.

I. claim as my invention:

1. A ventilator, comprising a rotatable, substantially horizontal hood open at both ends and provided on its underside with an opening adapted to communicate with an air-shaft, and a plurality of wind deflectors arranged within the hood at different sides thereof, said deflectors consisting of approximately conical sections converging toward the inlet end of the hood, the wide rear portions of the deflectors extending outwardly to the wallof the hood.

A ventilator, comprising a rotatable, substantially horizontal hood open at both ends and provided on its underside with an opening adapted to communicate with an air-shaft, apair of wind deflectors arranged within the hood at opposite sides thereof, and a third wind deflector arranged in the upper portion of the hood between the firstnamed deflectors, said deflectors consisting of approximately conical sections converging toward the inlet end of the hood and the wide rear portions of the deflectors extending outwardly to the wall of the hood.

3. A ventilator, comprising a rotatable,

substantially horizontal hood open at both ends and provided on its underside with an opening adapted to communicate with an air-shaft, wind deflectors arranged within the upper portion of the hood, said deflectors consisting of approximately conical sections converging toward the inlet end of the hood and having their wide rear portions extended outwardly to the wall of the hood, and a wind and storm shield extending downwardly from the inlet ends of said doflectors to the bottom of the hood.

4. A ventilator, comprising a rotatable, substantially horizontal hood open at both ends and provided on its underside with an opening adapted to communicate with an air-shaft, a pair of wind deflectors arranged within the hood at opposite sides thereof, and a third wind-deflector arranged in the upper portion of the hood between the firstnamed deflectors, said deflectors consisting of approximately conical sections converging toward the inlet end of the hood, said side deflectors being provided at their front ends with meeting shield sections which extend downwardly to the bottom of the hood.

CARL HENRY WILLIAMS.

lVitnesses LILLIAN M. WILLIAMS, JOHN lVILLIAMs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G.

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