US1486916A - Rotary ventilator - Google Patents

Description

J. NOVY ROTARY VENT ILATOR arch 18{ 1924.

Filed Sept. 6 1.922 2 Sheets-Sheet 1 Swank o1', James d@ March 1s 1924. 1,486,9w

J. NOVY ROTARY VENTILATOR Patented Mar, l, i924.

JAMES NOVY, OF MUSKOGEE, OKLAHOMA.

ROTARY VENTILATOR.

Application filed September 6, 1922. Serial No. 586,474.

To all whom t may concern:

Be it known that l, JAMES NovY, a citizen of the United States, residing at Muskogee, in the county of Muskogee and State of Oklahoma, have invented new and useful Improvements in Rotary Ventilatore, of which the following is a specification.

This invention useful improvements in rotary ventilators, and has for its objects to provide, first, a

kcontinuously lubricated bearing for the revolving cowl, hood or head; second, to provide a bearing which is protected from all injurious gases and temperatures; third, to provide an inexpensive and easily replaceable bearing; fourth, to provide as noiseless a ventilator as possible by the use of a long guide for the supporting shaft, and one which is well braced and adjustable for correct alinement; and, finally, to provide a rotary ventilator which is strong and durable and designed for long and efficient service and free from parts liable to be broken or damaged or to easily get out of order.

The invention consists of the featuresof construction, combination and arrangement of parts, hereinafter fully described and claimed, reference being had to the accompanying drawings, in which Figure l is a central vertical longitudinal section through a ventilator embodying my invention. Y

Figure 2 is a top plan view of the base section thereof showing the internal bearing means in section taken substantially on line 2 2 of Figure 1.

Figure 3 is a sectional plan view on the plane indicated by the line 3-3 of Figure 1, showing the fire-damper in closed position.

Figure 4 is' a sectional elevation of the shaft bearing housing and bearing and end of theshaft journaled therein.

In the practical embodiment of my invention, as herein disclosed, I provide a rotary ventilator comprising a cylindrical stationary base section 1 and a rotary head, cowl or hood section 2, the latter being cylindrical at its base and having its lower edge arranged to surround and overlap the upper edge of the base section 1. These lapping edges of the sections 1 and 2 are reinforced by annular channel-iron braces 3. The head section 2 is provided with the usual side mouth or opening 4 and has disposed therein bracing members 5 and 6. Suitably atrelates to certain new andV tached to the head section is the vane 7 adapting said head section to be rotated by currents of air striking against the vane, which turns to a point of least resistance.

Secured at its upper end to the head section 2 and extending downwardly through the bracing members 5 and 6 is a stationary shaft 8 having a tapered lower end 9 terminating in a hardened conical journal 10. The said portion 9 of the shaft is received and turns within a bearing housing 11 consisting of a six-way pipe fitting having upper and lower openings 12 and 13 and side openings 14. The lower opening 13 is closed in a iuid tight manner by a threaded plug 15 carrying an eye 16 and formed in its upper portion with a conical cavity 17 receiving a conical centering point 18 on a hardened metal bearing plate or disk 19 provided with a conical bearing recess 2O receiving the conical end journal 10 of the shaft 8. The lower end of the shaft thus turns in contact with a durable type of bearing which will last for a long period and which, by simply detaching the plug 15, may be removed when worn to any extent and to admit of another bearing plate being substituted in its place.

The bearing housing 11 forms part of a combined bearing, bracing and suspension frame structure supported by the base section 1. This structure includes, in addition to said housing 11, an annular series of supporting and bracing arms 21 arranged at an angle of 90 to each other and threaded at their inner ends in the openings 14 and fitted at their outer ends in sockets 22 on the stationary base section 1. Threaded into the top .opening 12 of the housing 11 is the lower end of an upright supporting tube or pipe' 23 which is connected at its upper end with` a multi-armed bracing head 24. This head 24 consists, like the housing 1l, of a six-way pipe fitting having top and bottom openings 25 and 26 and an annular series of four side openings 27. The upper end of the pipe 23 is threaded into the lower opening 26 and supports the head 24 in position. The shaft 8 extends downwardly through the head 24 and pipe 23 into the housing 11, which parts form a long bearing for the lower end of the shaft, whereby said shaft is held centered in position and prevented from tilting or wobbling or getting out of proper alinement.

onnecting arms 28, which may consist of ordinary pipe elbows, are threaded at their inner ends in the openings 27 and closed at their outer ends by plugs 29provided with eyes 30. These eyes 30 receive the hooked upper ends orF rods 31 adjustably connected by turn buckles 32 to the upper ends et similar rods 33 having hoolts at their lov/er ends engaging leyes 3st of plugs 35 closing the angle openings or sockets 3G oi" i iittings 37, the sleeve portions of which are itted upon the ends ot the bracing arms 21. By this construction the pipe 23 and bracing head 241- are coupled to and reinforced from the bracing arms 2l by an annular series of inclined stays which hold the said portions 23 and 24. from lateral deflection. By means or these inclined stays, which are adjustable as described, the bracing head 2d may be laterally adjusted in any direction as occasion may require to properlyv center the bracing and bearing structure and the shaft 8, whereby the shaft Will be held from displacement under pressures exerted upon the head section and will maintain said head section in proper position, the centering of the shaftadapting it to work truly in its bearing against any tendency to bind, so that at all times an easy and accurate motion of the head sec-tion is ensured.

The construction described not only provides a firm and durable support for the shaft and head section, but the hollowv parts of the bearing and brace trame structure particularly parts ll, 28 and 24, provide a reservoir for Oil or other lubricant, which may be introduced thereinto as required by removal ot one ot the upper plugs 29. This oil will be coniined in the bearing housing 1l, and the bearing parts ot the shaft will thus be constantly immersed in oil, keeping them cool and reducing Wear and tear to a material degree, the lii'ie oi the Working parts thus being materially prolonged and in addition said parts are thereby protected from rust and disintegration from the action of the elements. For the purpose of reducing the amount of oil required, the inner ends ot' the pipes 2l may be closed at the point Where they enter the openings lil, thus confining the oil Within a reservoir portions including the housing lil and more or less of the upright bearing there-above. The shait end by being thus enclosed is at the same time protected from all injurious gases and temperatures and an inexpensive and easily replaceable bearing provided therefor, which bearing and which structure in general ensures the production of a ventilatorl having a rotating part which will operate easily and in a practically noiseless manner the long shaft bearing and continual lubrication of the bearing surfaces proper reducing friction to a minimum. Y

Arranged Within the bottom of the stationw ary base section l is a channeled bracing ring 39, and formed at diametrically opposite sides of said section l, adjacent to said ring 39, are bearing'soclrets l() receiving the ends ot a transverse rod or shaft all. To this shaft are hinged the semi-circular sections i2 of a folding re door, the sections of which are adapted when in closed position Y to rest upon the bracing Vring 39, which forms a seat therefor. ,dit their outer peripheral edges the door sections lf2 are reinforced by angle airons a?) and carry 'Weights de which adapt said door sections, When releas d lior closing movenient, to drop by gravity and seat upon the bracing ring Secured to the outer edges of the door sections are end portions or chains or cables da, which chains or cables pass in opposite direct-ions over pulleys or sheaves carried in a suspension bloclr si@ provided with a hoolr di" engaging the eye i6 oi' the plug l5, whereby said suspension block is supported troni traine. Vihe other ends ot the chains or cables l5 extend downwardly through slot-s i8 in the door sections and are connected by a fusible linlr di) with a counterbalancing Weight 50. This Weight 50 normally counterbalances the door closing Weights del and holds the door sections in the open position shown in Figure l, thus normally leaving the ventilator shaft open for tree ventilation. in the event, however, of the breaking oui ot a lire the passage oit the hot sinolre or gases through the ventilator will cause the link 4:9 to be fused or melted, thus freeing the weight which will drop down and also freeing the chains or cables t, taus allowing the door sections 42 to immediately drop by gravity down against the seat 39 and closing the ventilator shaft.

From the lioregoing description, connection u/'ith the accon'ipa ings, the construction and inode o' o' my improved rotary ventilator readily nderstood, and the ini c .tion provi actcr which is Which is long economical in operation. ,also it will be seen that it provides a means tor keeping the shaft constantly lubricated in a lengthened and braced bearingIn which supports the shaft accurately in position and thus obviates liability ot binding oi the shaft or other derangement oi the rotating parts. Furthermore it will be seen that it provides a construction in which the bearing parts are protected troni destructive ge and temperatures, in which an easily replaceable hardened bearing is furnished, ivl'iich may be renewed in a convenient manner Vwhen occasion requires., which Yfurther provides for adjustment oit an eilicienttype of bracing means whereby the bearing may at all times be kept centered, thus adapting the rovvill i. it will be seen that e i im r +1 i c@ :t tUVla, 0L iilS (hid. simple oi construct-ien and lived and he durable and the bracing and bearing 'Y tary head to operate in a practically noiseless manner, and which still further provides a door or damper adapted to automatically close the shaft upon the breaking out of a fire. These and other advantages of the invention will be understood and readily appreciated by those versed in the art without a further and extended description.

Having thus fully described my invention, I claim l. In a rotary ventilator, the combination of a stationary base section, a rotary head section, a six-armed bearing housing in the base section, a six-armed bracing head enclosed within the head section above and in vertical alinement with said bearing housing, a tubular shaft guide connecting the upper vertical arm of the bearing housing with the lower vertical arm of the bracing head, radial braces connecting the horizontal arms of the bearing housing with the base section at angles of 90 to each other, bracing members connecting the correspondingly arranged arms of the bracing head with said radial braces extending from the bearing housing, adjusting connections in said arms, and a shaft carried by the head section and extending downwardly through the bracing head and shaft guide into said bearing housing.

2. In a rotary ventilator, the combination of a stationary base section provided with sockets, a rotary head section, a six-armed bearing housing in the base section, radial supporting and bracing arms arranged at angles of 90 to each other and connecting the horizontal arms of the bearing housing with the sockets of the stationary base seetion, sleeves on said arms, a six-armed bracing head arranged in the head section in vertical alinement with said bearing housing, a tubular shaft guide extending between the upper vertical arm of the bearing housing and lower vertical arm of the bracing head, braces extending between the correspondingly arranged arms of the bracing head and the radial arms of the bearing shaft carrying the head and connected with the sleeves of the latter, adjusting connections in the lengths f said arms, and a shaft carried by the head section and extending downwardly through the bearing head and shaft guide and into said bearing housing.

3. In a rotary ventilator, the combination of a stationary base section, provided with sockets a rotary head section, a hollow bearing housing in the base section, arms radiating from said housing and engaging the sockets of the base section, sleeves on said arms, a bearing member in said housing, a multi-armed bracing head in the head section, a hollow upright brace member connecting said head with the bearing housing, bracing members extending between the arms of said bracing head and the sleeves of the aforesaid bracing arms, and a shaft carrying the head section and extending downwardly through the bracing head, hollow upright brace member and into the bearing housing and turning in contact with the bearing therein.

4. In a rotary ventilator, the combination of a stationary base section provided with sockets, a rotary head section, a hollow bearing housing in the base section, radial supporting and bracing arms extending therefrom and enaging the sockets of said base section, a bearing member in said housing, a multi-armed bracing head in the head section, an upright shaft guide between said bearing housing and bracing head, sleeves upon the said radial supporting and bracing arms an annular series of, bracing members extending between the arms of the bracing head 'and the sleeves on the supporting and bracing arms, turnbuckles in said bracing members for adjusting the same, and a rotary head section and extending downwardly through the bracing head and upright shaft support and into the bearing housing and turning' in contact with the bearing member in said bearing housing.

In testimony whereof I afx my signature.

JAMES NOVY.

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