US391425A - prichard - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

G. A. PRIOHARD & E. MIGNAULTV VENTILATOR.

110.391. 125. Patented 0013.23, 1888.

w QJWM I 2 Sheets-Sheet 2.

(No Model.)

G. A. PRIGHARD & E. MIG-NAULT.

VBNTILATOR.

No. 391,425. Patented Oct. 23, 1888.

my; W, CJK awn gz ww N4 PETERS; Hutu-Lithographer. Wnlhiqgiun. DC.

Unrre GEORGE A. PRIGHARD AND EUSEBE MIGNAULT, OF NEW YORK, N. Y.

VENTILATOR.

SPECIFICATION forming part of Letters Patent No. 391,4;25, dated October 23, 1888. Application filed December 10, 1887. Serial No. 257,525. (No model.)

To aZZ whom it may concern:

Be it known that we, GEORGE A. PRIOHARD and EUSEBE MIGNAULT, of New York city, county of New York, and State of New York, have invented certain new and useful Improvements in Ventilators, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

Our present invention has relation to ventilators, such as are employed in connection with cars for the purpose of producing an exhaustion of foul air or gases therefrom; but our improved device may be employed in other situations as well as upon cars for producing like exhausting effects.

The object of our invention is to produce a simple, compact, and efficient ventilator or ventilating apparatus which may be operated by wind or air currents to which it is exposed, either when at restas bypassing wind or air currents-01 when it is moved or carried rapidly through the air, or under both circumstances combined,which ventilator shall be capable of producing apositive, rapid, and thoroughexhaustion of air or gases from the compartment to be ventilated by mechanical means, and which shall operate easily, noiselessly. with little friction,in whichever direction the car may be moving or the wind blowing, and without interfering with the natural outflow of air or gas from the car, &c.,

a hen the car is at rest or when the exhaust fan is not being propelled by currents from the exterior.

To accomplish all of this,our improvements involve certain new and useful arrangements or combinations of parts and peculiarities of construction, as will be herein first fully de scribed, and then pointed out in the claims.

In the accompanying drawings, forming part of this specification, we have shown at Figure 1 an axial section and elevation of our improved device as it appears when arranged to draw air or gas from the side. Fig. 2 is a plan of the underside of the apparatus, showing especially the power-wheel. Fig. 3 is a section through the casing and a plan showing the exhaust-fan. Fig. etisaview in elevation,

on a smaller scale than previous figures, show ing one manner of applying the ventilator on or in connection with a car.

In all these figures like letters of reference, wherever they occur, indicate corresponding parts.

Ais the main shell of the apparatus, which is of general cylindrical form and is intended to stand or be supported in an upright position. It is separated into two compartments by a partition, B, located near the central part of the main shell.

C is the vertical shaft located in the axis of the shell, sustained at bottom by a spider or frame, D, and at top by a similar spider or frame, E. The power-fan and the exhaustfan are both keyed on this shaft, and in order that the fans may be turned easily suitable self-oiling or equivalent boxes or bearings, as at a I), may be employed in connection with the shaft.

F is the power-wheel. This is made with curved blades, after the manner of a turbinewheel, so as to utilize the force of incoming currents to best advantage. It is keyed to the shaft as by'a screw or pin, 0, so that it may be adjusted up or down or removed when required, and is located in one of the compartments into which the main shell is divided. The curvature ofthe blades is such that the aircurrents first strike their outer portions to turn the fan and are then deflected downwardly and discharged rapidly through the open end of the shell. To direct the currents upon the fanblades with sufficicnt force and volume, we place upon the exterior of the shell two open funnels or accumulators and directors, G G. The outer lines of these are about tangent to the surface of the shell,and the inner lines inclined to the outer aboutas shown in the plan, Fig. 2, so that the currents gathered by them are concentrated and directed toward the outer rim of the power-fan in a manner which will be readily understood.

It is plain that if the ventilator ismoved in either direction one of the mouths G will gather and direct the air so as to turn the fan. Then the car is at rest,the mouths G will direct wind-currents from the exterior upon the fan. H is the exhaustfan,which,beingkeyed to the vertical shaft, must turn with it. The blades of this fan are plain, but inclined all in the same direction, so that as the fan is revolved rapidly it will cause air or gas to approach the fan to be expelled therefrom, and thus accomplish the desired exhausting effects. The fan II is located in the remaining compartment, and is keyed to the shaft as by key or pin d, so that it may be adjusted or removed.

In the example shown foul air or gases are admitted at one side of the compartment eon taining the exhaust-fan through an opening, I. This opening does not communicate with the other compartment, but is placed in communieation with the car or room desired to be ventilated by any suitable collar or pipe. The latter is preferably round, for convenience of construction, and may extend on the outside below the partition in the shell, or it may be made to correspond in form with the opening through the shell.

Over the shell is a hood or canopy, K, perforated as at e e,through which perforations the exhausted air or gases are expelled. These perforations are guarded by a vertical ring or band, L, which prevents direct currents from passing in from the exterior, and further guarded above and below by flanges, as ff, which operate to deflect inclined currents, the arrangement being such as to prevent exterior air-currents from interfering with the discharge from the shell, but rather to aid such discharge.

The improved ventilator may be mounted upon a car, as shown in Fig. 4, occupying but little space and neither projecting above the top or beyond the side. A slight movement ofthe car is always sufflcient to propel the fans, and under no circumstances can there be any back-pressure tending to interfere with the proper operation of the device. It may be located in other situations, as well as upon the roof. For instanee,it may be located under the car, in which case the hood is dispensed with and the exhaust-fan reversed on the shaft to draw foul air down through the top and discharge it through the side of the shell.

The device, being constructed and arranged in accordance with the foregoing explanations, is found to admirably answer the purpose or object of the inventiomas previously set forth.

Having now fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a ventilator of the character herein set forth, the power-fan and exhaust-fan mounted on the same shaft in a shell divided into two compartments,said shell being provided on its exterior with the open projecting funnels turned in opposite directions forcollecting and directing air-currents, and having separateinlet-openings and separate discharge-openings or outlets, the parts being combined and arranged substantially as shown.

2. In a ventilator of the character herein set forth, the combination,with the shell containing the power-fan and exhaust-fan, of the exterior projecting funnels turned in opposite directions,and theperforatedhood andinclined flanges, substantially as shown and described.

3. In a ventilator of the character herein set forth, the combination, with the shell having the projecting funnels turned in opposite directions and the hood and inclined flanges, of the vertical shaft, the two fans located in separate compartments of the main shell,the said fans being keyed to the shaft and reversible thereon, substantially as and for the purposes set forth.

In testimony that we claim the foregoing we have hereunto set our hands inthe presence of two witnesses.

GEORGE A. PRIOHARD. EUSEBE MIGNAULT. Witnesses:

JOHN BUOKLER, WORTH Oseoon.

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