US644335A - Ventilator. - Google Patents

Description

No. 644,335. Patented Feb. 27, I900.

B. H. SCHUMACHEB.

VENTILATUB.

(Application filed Nov. 15, 1898.)

2 Sheets-Sheet l.

(No Model.)

iiflifichumaniuw No. 644,335. Patented Feb. 27, I900.

R. H. SCHUMACHER.

VENTILATOR.

(Application fi1ed Nov. 15, 1898. I No Model.) I 2 Shets-$heet 2.

WHDQSSGS RESCZZZZI/MF D enTOP. WZ w MW STATES ROBERT Il. SOHUMAOHER, OF NAVASOTA, TEXAS.

VENTILAi'QR.

SPECIFICATION forming part of Letters mat No. 644,335, am February 27, 1900. Application filed November 15, 1898. Serial No. 696551. (No model.)

, fication.

This invention relates to ventilators designed to be applied to the roofs of buildings and other structures to provide means for insuring a proper ventilation of one or more rooms throughout the building by providing for maintaining a constant circulation of fresh or cold air into the building and an escape for the heated and vitiated air.

To this end the invention contemplates an improved construction of house ventilator having simple and efficient means for forcing a large volume of air into a house or building, so that it can be distributed throughout the various rooms or apartments thereof, while also insuring the proper exhaust or outlet for the heated and vitiated air,.thereby causing a continuous circulation of the air. In carrying out this object the invention provides anovel form of hood or cap for the ventilator which will automatically adjust itself in the direction of. the wind in the manner of a weather-cock and will also provide for a forced downdraft of the cold or fresh air.

Another feature of this invention is improved means for effectively excluding the rain from the inlet and exhaust passages of the ventilator.

With these and other objects in view, which will readily appear as the nature of the invention is better understood, the same consists in the novel construction, combination, and arrangement of parts hereinafter more fully described, illustrated, and claimed.

While the essential and characteristic features of the invention are necessarily susceptible to modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which-- Figure l is a vertical longitudinal sectional view of a house-ventilator constructed in accordance with the present invention. Fig. 2

is a cross-sectional view on the line 2 2 of Fig. 3 is a similar view on the line Fig. 4 is a similar view on the Fig. 5 is an enlarged de- Fig. 1. 3 3 of Fig. 1. line 4: 4 of Fig. 1.

tail sectional view of the ball-bearing support for the revoluble elbow-hood.

Referring to the accompanying drawings, the numeral 1 designates a stationary upright cold-air trunk, which is preferably made in a cylindrical form and is designed to be sup ported on the roof of a house or building by any of the well-known means, and in the present invention the said cold-air trunk 1 forms a downdraft-flue for the passage of cold or fresh air which is to be circulated into the building.

To provide for conducting the cold air into the house or building to be ventilated, the cold-air trunk 1 has projected from its lower end 2 a supply-pipe 3, which when only a single room or apartment is to be ventilated is designed to have coupled thereto a single ven' tilating pipe of the same diameter; but ordinarily the ventilator is designed to supply a number of rooms with fresh air, and to carry out this object the bottom pipe extension 3 of the cold-air trunkis provided with an end plate 4:, closing its lower end and having fitted thereto the upper ends of a plurality of distributing tubes 5, which are carried through the walls or in any other desirable way into the different rooms, so'that each room will have a separate and independent supply-pipe connection with the main coldairtrunk of the ventilator.

The upright cold-air trunk 1 has projected from the upper end thereof a reduced supporting-neck 6, which provides for the support of the revoluble elbow-hood 7 of the ventilator. The vertical or pendent portion of the revoluble elbow-hood 7 loosely encircles the neck extension 6 of the trunk and is provided atits lower edge with a horizontal bearing flange or plate 8, which loosely bears on top of a series of bearing-balls 9 or similar antifriction-bearings, which are preferably made of vitreous or other equivalent material which will not corrode under the action of the weather. The balls or antifriction-bearings 9, which provide a loose antifriction-support for the lower end of the hood 7, are loosely housed within a beari ng-cu p 10, fitted to the neck extension 6 and encircling the exterior portion thereof. In addition to carrying the ball-bearings or equivalent support for the revoluble hood 7 the neck extension 6 is further provided near its upper end with an exterior bearing-ring 11, which serves to properly space the hood from the neck 6, so that the hood will always remain perfectly centered, and thereby be susceptible to the slightest pressure of the wind. In connection with the bearing-support for the revoluportion of the hood. The rotary fan-wheel- 14: essentially comprises a plurality of radial obliquely-set fan-blades 15, which are disposed at such an angle as to insure a notation of the fan by the slightest breeze, and said fan-blades radiate from the central hub 16, housing therein balls or equivalent antifriction-bearings 17, which provide for the ballbearing support of the fan on the horizontal shaft-rod 18. The shaft-rod 18 is fitted horizontally and centrally within the upper portion of the revoluble hood and passes centrally through the transverse brace-bar 19, arranged adjacent to and at one side of the fan-wheel. The outer end of the shaft-rod 18 projects beyond the mouth of the hood and is formed with a pointed or arrow-head extremity 20, which is preferably made hollow and filled with suitable weight material 21, so as to balance the weight of the vane or tailplate 22, having a rigid arm connection 23 with the exterior of the revoluble hood 7 in alinement with the shaft-rod 18. The shaftrod, in combination with the vane 22, constitutes a weather-cock construction which will provide for pointing the revoluble hood in the direction of the wind, so that the wind or air currents will pass directlyinto the mouth 13 and through the fan 14:. The said fan will thus be caused to revolve and will augment the volume of cold or fresh air which passes downward through the cold-air trunk and into the pipe or pipes for distributing the air into the room or rooms of the building.

To provide for intercepting the passage of rain, snow, or sleet through the air-trunk 1, the said trunk has arranged within the top portion thereof a horizontal protective shield 24, which is in the form of an inverted cup of a less diameter than the trunk 1 and provided with a straight wall 25, having an outturned lower edge 26. The shield 24 is centered and supported Within the trunk 1 by means of the brace or equivalent connections 27 between the shield and the adjacent sides of the trunk, and the pendent wall 25 of said shield overhangs the interior annular drain-gutter 28, fitted to the inner wall of the trunk. The interior annular drain-gutter 28 has suitable drain connections 29 therewith, which communicate with the exterior of the trunk to provide for carrying off accumulations of water, and said gutter is closed at its inner side by an upwardly-convergent annular flange 30, with an inturned upper edge 31, which serves to assist in properly retaining the water and at the same time facilitate the free passage of air through the trunk.

The protective shield 24 is spaced a distance above the interior gutter 28, so that the water which strikes the top of the shield will drain from the pendent flange 25 thereof directly into the gutter, while at the same time the incoming cold air has a free passage around the protective shield and between the contiguous edges of its flange and the flange of the gutter.

The upright cold-air trunk 1 supports a plurality of exterior exhaust-tubes 32 for the heated and vitiated air within the building. These tubes are grouped in a circular series around the exterior of the trunk 1 and have their lower ends pass through the bottom of the trunk exterior to the pipe extension 3 at its lower end. The lower end of each of said tubes 32 exterior to the pipe extension 3 is designed to have coupled thereto an independent ventilating-pipe, which leads to one of the rooms of the building, and in this way it will be seen that the ventilator provides a separate and independent exhaust connection for the different rooms of the building, so as to carry off the heated and vitiated air as it is displaced by the cold or fresh air, which is circulated in the manner already explained.

The upper vertical portions of the exterior exhaust-tubes 32 are fitted in the bottom of and open into a substantially U-shaped exterior annular drain gutter or trough 33,which encircles and is secured to the exterior of the cold-air trunk 1. The said exterior annular drain-gutter 33 is provided in the bottom thereof with the drain-openings 34. for the escape of accumulations of water, and at this point it will be observed that at their upper ends the tubes 32 are provided with flanges 35, projecting. above the bottom of the trough 33 to prevent water from running into the tubes. In order to prevent the direct passage of rain, snow, or sleet into the tubes 32, the latter have arranged over their open upper ends a weather-cap 36. This weather-cap 36 is suspended by suitable means within the plane of the trough 33 and is of a less width than the same, which permits the free escape of the heated and vitiated air from the exhaust-tubes, and the said weather-cap 36 is provided with pendent side flanges 37, which cause the rain to be deflected directly into that portion of the gutter 33 having the drainopenings.

From the foregoing it is thought that the construction, operation, and many advantages of the improved house-ventilator will be readily apparent to those skilled in the art without further description, and it will be understood that changes in the form, proportion,

and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described the invention, What is claimed, and desired to be secured by Letters Patent, is

1. A Ventilator comprising a vertical windtrunk, means for augmenting a downdraft of cold air therethrongh, a pipe extension of less diameter than said wind-trunk, communicating directly with the lower end thereof, and having branched distributing-tubes, a series of vitiated-air flues bent to extend into and through the lower end of the wind-trunk and having their upper ends grouped around the outside thereof, a drain gutter supported around the outside of the wind-trunk and receiving the upper ends of said vitiated-air flues, and weather-caps supported by said drain-gutter over the open ends of the vitiated-air flues, substantially as described.

2. In a ventilator, an upright air-trunkhaving an interior annular drain-gutter closed at its inner side by an upwardly-convergent annular flange, and a shield arranged horizontally above the gutter and having a pendent annular flange overhanging the same, substantially as set forth.

3. In a ventilator, the combination of an upright air-trunk having a distributing-pipe connection at its lower end, a plurality of exhaust-tubes arranged exterior to and supported by said trunk, and a weather-protecting device supported by the trunk on the exterior thereof and having connection with the upper ends of said exhaust-tubes, substantially as set forth.

4. In a ventilator, the combination of an upright cold-air trunk provided with an exterior 4o annular drain-gutter having bottom drainopenings, a plurality of exhaust tubes arranged exterior to and supported by said trunk, and having their upper ends projecting through the bottom of said gutter, and a flanged weathei cap supported Within the gutter above the upper ends of said exhaust tubes, substantially as set forth.

5. A ventilator comprising a vertical windtrunk, a drain-gutter supported within the wind-trunk and provided with an upwardlyprojecting flange and with drain-ports which open through the wind-trunk, a shield supported above the drain-gutter and within said wind-trunk and having a depending flange arranged concentric with the flange 0f the drain-gutter, and a cowl revolubly mounted on the wind-trunk, substantially as described.

In testimony that I claimthe foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

ROBERT H. SOHUMAOI-IER.

Witnesses:

EWING LEONARD, O. S. TALIAFERRO.

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