US938067A

US938067A - Ventilator.

Info

Publication number: US938067A
Application number: US38687807A
Authority: US
Inventors: Harvey F Maranville
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-08-03
Filing date: 1907-08-03
Publication date: 1909-10-26
Anticipated expiration: 1926-10-26

Description

H. F. MARANNILLE.

VENTILATOB.

. APPLICATION FILED AUG. 3. 1907. 938,067. Patented Oct.26, 1909. 2 SHEETS-SHEET 1.

WFTNESSE'S: E6: INVENTOE,

. H. F. MARANVILLE.

VENTILATOB.

APPLICATION nun AUG. 3, 1901.

Patented Oct. 26, 1909.

2 SHEETS-SHEET 2.

- INVKNTOR' 2 I HARVEY I. MABANVILLE, OF AKRON, OHIO.

VENTILATOB.

Specification of Letters Patent.

Application filed August 8, 1907. Serial No. 386,878.

Patented Oct. 26, 1909.

To all whom it may concern:

Be it known that I, HARVEY F. MARAN- VILLE, a citizen of the United States, residinguseful Improvement in Ventilators, of which the followin is a full, clear, and exact description, reference being had to the accompanying drawings.

invention relates to ventilators and ventllating systems.

In the use of ventilators, it frequently happens that, owing to the location of the building or factory wherein the ventilators are employed, it is impossible to obtain sufficient draft to change the air with such frequency as to relieve the occupants from excessive heat and from inhaling injurious gases and vapors. It has been sug ested, to cure this defect in the operation of ventilators, that fans or other positive draft-creating mechanism be combined therewith, but the constructions heretofore suggested have been liable to such objections as to prevent them from coming into general use.

The objects of my invention are to provide for ventilators andventilating apparatus draft-creating mechanism which can be automatically placed into and out of operation as occasion may require; to combine such mechanism with the dampers of ventilators in such manner that, when it is desirable to close the damper part1 or .wholly, the closing movement of the amper will automatically place the draft-creatingmechanism out of operation, while the openin of the damper will automatically place sai mechanism into operation; to provlde means whereby ventilator dampers may be automatically closed in case of fire; also to provide eflicient means for operating from a common source of power the fans or draftcreating mechanisms of a system of venti lators.

More limitedly, my invention contemplates combining the draft-creating mechanism with dampers in such manner that, in case of fire, the dampers will be automatically closed and the draft-creating mechanism placed out of operation.

- Generally speaking, the invention may be defined as consisting of the combinations of elements, for the purposes set forth, embodied in the drawings forming part hereof andincluded in the claims hereto annexed. In the drawings, wherein one embodiment of my invention is illustrated, Figure 1 represents a vertical sectional view through a ventilator having my invention applied thereto; Fig. 2 represents a corresponding sectional view, taken at right angles to Fig. 1, the fan, the driving mechanism therefor and the weighted lever which automatically close the damper being shown in elevation; Fig. 3 represents a sectional view on the correspondingly numbered line of Fig. 2;.Fig. 4 re resents a portion of a building having app ied thereto a ventilator equipped with my invention and showing means whereby the draft-creating mechanisms may be operated by a common shaft, and Fig. 5 represents a. perspective view of the fusible link through which, the weighted damper is su ported.

escribing the parts by reference numerals, 1 represents a ventilator of approved construction, the same comprising a vertical air shaft 2, carrying at the upper end thereof a downwardly inclined deflecter 3. The top of the air shaft is covered by means of a hood 4 comprising a skirt 4 which is spaced from the upper end of the air shaft to provide a free annular space or port 5 for the escape or admission of air. The upper end of 4: is closed by means of a top 50, which is preferably of glass, the glass being retained 1n place by means of a' flange 6 and being sup orted by one or more angle bars 7 exten ing beneath the same and secured to the casing 4. A deflector 8 is carried by section 4 and projects downwardly parallel with deflector 3, providing therebetween a space for the air which flows to or escapes from the port 5. A sleeve 9 surrounds the outer ends fof

deflectors

3 and 8 and is spaced therefrom to shield the ventilator from violent drafts or air currents.

The shield 9 may be supported from the body of the ventilator in any approved manner, as by straps 10 and 111 wh ch connect the lower ends of the

deflectors

3 and 8 respectively withsaid shield,

the shield thus forming a means. for supporting the hood from the air shaft. The upper end of deflector 8 may project into the interior ofthe skirt 4, providing therein an upwardly projecting ring or iange 13 to which the adjacent portlon of 4 may be secured. This securing means is shown as a flange 14 formed on-the portion of skirt" 4: which is immediately above the deflector 8 and secured to sald deflector by solderin ,The lower portion of v skirt 4 may be a cy indrical section of the same diameter asthe upper portion and having its upper end secured to deflector 8, the up er and lower sections of the skirt constituting in effect a continuous skirt.

Within the upper portion of air shaft. 2, there is slidably fitted the damper 15. This damper comprises a cylindrical casing of sufficient length to close the port 5 and at the same time retain a guiding connection with the air shaft 2. At its upper end, damper 15 is provided with a downwardly extending flange 16, which is adapted to engage the upper end of the air shaft and thereby support the damper in its open position. As a convenient means foroperating the damper, I have provided the following construction: 17 denotes a cross bar extending across the air shaft 2 and connected at its op osite ends with said shaft. At the cent-ra portion of said bar there is provided a support 18, shown as a tee, to the upwardly extendin branch of which there is fitted a ide r 19, the upper end of said rod fi ing secured to the an le bar 7, at the central portion thereof.- n this ide rod there is slidably fitted a hub 20 w ich supports the inner ends of rods 21, said rods eing connected at their outer ends with damper 15 and forming with said hub a spider. The inner ends of the rods may be threaded or otherwise suitably secured to the hub. The hub is shown as providedwith a pair of upwardly extending lugs 22 to WhlCh are connected links 23, the upper ends of said links being connected to a yoke 24 carried by the inner end of a lever'25. This lever is supported, intermediate of its ends, by a stra 26, the u perend of which may be carrie by angle ar 7. To the outer end of lever 25, which is ad'acent to'the inner surface of the skirt 4, t ere-is connected a downwardly extending link 27, the lower end whereof is curved inwardl and is pivotall connected to the weights lever 28, mterme iate of the'ends thereof. The outer end of said lever is pivotally supported from the air shaft, as by means of. In s 29 secured to said shaft. The lever exten s across'the air shaft and is provided, near its free end,

with a weight 30. To the free end of said lever there 1s connected a small rope 31 passing through a block or pulley 32 which may be suspended from the flan e 13, or any other convenient portion of tie hood. 1 The lower end of rope 31 may be securedto any fixed object. It will be apparent that, by merely slacking off on rope 31, the weight 30 Wlll automatically lift the damper 15, through the interposed connections, Owing to the fact that the link 27 is connected. to

' by belt 40.

.28 and the rope 31.

. ously closing the 7 connection between the fan 33 and its riveshaft.

I have provided the damper with draftcreating mechanism, in the shape of a fan 33, which. may be carried by the hub 20,

roller bearin s 34 bein ub 20' an rovided between a spindle on t e interior of the fan hub. The fan hub is provided on its lower surface with a suitable driven device, as a disk 340, which is engaged by and adapted to be driven by a suitable driving devlce, as a friction disk 35. This disk is supported by a shaft 36, which is preferably mounted Within the-air shaft, the outer end of the shaft being supported by a bearing 37 carried by the air shaft and the inner end being supported in a bearing 38 which may be conveniently carried by the tee 18. Shaft 36 may be driven from any suitable source of power, as "by a pulley 39 driven It will be apparentthat, when the damper 15 1s moved 1n aclosing direction, it will carry with it the fan 33 and will automatically break the driving connection between said fan and shaft 36. When the dam er is lowered to its full open position, dis: 340 w ll be engaged by disk 35 and the fan will be rotated. This capability of o eratlon is of great ortance in the ventilator art. WVhen it is esirable or necess'a to close the damper even partially, it wi be evident that there will be no occasion for the fan to operate; in fact, under such conditlons, it would be highl undesirable to have the fan operate. On t e other hand, when maximum draft is desired, the damper will be opened to its full extent, at which time the fan will be automatically placed in operation.

My invention contemplates also the automatic closing of the damper and the susension of operationof thefan in case of res. It will be readily appreciated that in such event, the draft through 'the'ventilators'should be cut off in order to limit the spread of the flames as much as possible. To accomplish this result, I employ a fusible connection between the free end of lever This connection is shown clearly in Figs. 1 and 5 and comprises a pair of metallic members or straps 41 con-- nected together byfusible metal 42, which will melt at a temperature of about 165 degrees F. In the event of fire, the metal 42 uses and the wei ht 30 dro s, simultanebreakin amper an the I have shown in Fig. 4, somewhat diagrammatically, means by which the fans in a system of ventilators may be operated. In

this view, 420 denotes a building provided with a number of my ventilators. Extending beneath said ventilators there is a shaft 43 which may be driven continuously from an source of power. This shaft is provi ed, beneath each ventilator, with a drive pulley 4:4 to which is applied the belt by means of which ulley 39 and shaft 36 are rotated. As will appear from this figure, one of these belts, 40, may be crossed, to cause the fan within the ventilator-there above to operate in the reverse direction fromthe fan in one or more ofthe other ventilators. In this manner, air may be positively drawn into one ventilator while being forced out of the other, thereby insuring an effective ventilation of the building. The location of the shaft 36 entirely within the air shaft enables my ventilator" to be applied to existing types of buildings Without any alteration thereof for the purpose of accommodating this shaft.

Having described .m invention, 'Iclaim:

1. In a ventilator, t e combination of adamper, and draft-creating mechanism carried by sald damper, substantially as specified.

2. In a ventilatorythe combination of an air shaft, a damper therein, and a fan movism movable therewith.

' nally of said ventilator, a fan rotatably able with said damper, substantially as specified. 1 a

3. In a ventilator, the combination of an' air shaft, a hood spaced from said air shaft to provide an air port, a sleeve-damper combined with said air shaft and adapted to close said port, and draft-creating mechan- 4. In a ventilator, the comb ation of an a'ir shaft, a hood therefor, space being provided between said hood andj'said'a'ir shaft, a ring damper combined withsaid'air shaft, means for moving said damper to close said port more or less, a fan carried by said damper and havin a driven-member, and a driving member or said "driven member supported within said airsha ft, substantially as specified.

5. In a ventilator, thecombination of an air shaft, a damper movable longitudinally with respect thereto, a fan movable with said damper and havin a driven member, and a driving member or said driven member, substantially as specified.

6. In a ventilator, the combination of an air shaft, a hood forming with said shaft an air port, a guide rod extending longitudimounted on said guide rod, a driven member for said fan, a damper movable longitudinally of said ventilator, means for supporting said fan whereby it may move with said damper, a driving member adapted to engage said driven member, and a s ring on said rod tending to force said mem ers into engagement.

air shaft, a fan rotatably mounted in said air shaft, a driven member for said fan, a damper movable longitudinally of said vent1lator, means connecting said fan with said damper, a driving member adapted to engage said driven member, and a spring tendm to force said members into engagement, su stantially as specified.

8. In a ventilator, the combination of an air shaft, a hood forming therewith an air port, a damper movable longitudinally of said vent1lator to close the air ort more or less, a spider connected with said damper, one-or more links connected to said spider, a lever pivoted intermediate of its ends and having one end connected to said link or links, a link connected to the opposite end of said lever, and a weighted lever connected air shaft, a damper movablelongitudinally of said ventilator, a lever pivoted intermediate of its-ends and having one end connected to said damper, a link connected to the opposite end of said lever, and a weighted lever connected intermediate of its ends to said link, substantially as s cified.

10. In a ventilator, the combination of an air shaft, a dam er movable therein, a lever pivoted interme iate of its ends and having one end connected to said dam er, a link connected to the opposite end 0 said lever, and a weighted lever ivoted at one end to the air shaft and connected intermediate of gsdends to said link, substantially as speci- 1 1. In a ventilator, the combination of a hollow ventilator body having an air port, a sliding damper adapted to control said port, and means for operating said damper, said meanscomprising a centrally located member connected with said damper, a lever pivoted intermediate of its ends and having one end connected with said member, a link connected with the opposite end of said lever, a weighted lever pivoted at one end to the ventilator body and having a connection intermediate of its ends 'to the first mentioned lever, substantially as specified.

12. In a ventilator, the combination of a hollow ventilator body having an air port, a sliding damper adapted to control said port, and means for operating said damper, said means comprising a centrally located member connected with said damper, a lever pivoted intermediate of its ends and having one end connected with said member, a link connected with the opposite end of said lever, a weighted lever pivoted at one end within the ventilator body and having a connection with the first mentioned lever, substantially as specified.

13. In a ventilator, the combination of a ventilator body having an air port, a slidable damper. adapted to control said port a weighted lever, connections between said ever and sa'id damper for automatically closing the same, and means, includin a fusible connection, for supporting the weighted end '7 l y last-mentioned means out of operation, subof said lever, substantia as specified.

15. In a ventilator, the combination of an air shaft, a fan associated therewith, means for rotating said fan, a weighted lever, and

a connection between said fan and said lever adapted to automatically break the connection between the fan and its rotating means, substantially as specified.

16. In a ventilator, the combination of an "air shaft, a fan associated therewith, means for rotating said fan, a wei ht connected with said fan and adapted to reak the connection between the same and its rotating means, anda fusible connection adapted to maintain said weight in inoperative relation to said fan, substantially as s ecified.

17 In a ventilator, the com ination of an air shaft, draft-creating mechanism associated therewith, means for operatin said mechanism, means for automatically Ereaking the connection between the draft-creatin? mechanism and its operating means, and a" usible connection adapted to maintain the stantially as specified.

In testimony whereof, I hereunto aflix my signat'ure'in the presence of two witnesses.

HARVEY F. MARANVILLE.

Witnesses:

M. E. Mn'rzcnn, C. E. KILLINGER.