US1929688A - Ventilator - Google Patents

Description

Oct. 10, 1933.

W. F. HIRSCHMAN VENTILATOR Filed Sept. 28, 1931 s Sheets-Sheet 1 JVENTOR MM 1 saw/Wm BY @W ATTORNEYS Oct. 10; 1933. w. F. HIRSCHMAN VENTILATOR Filed Sept. 2 1 1 3 Sheets-Sheet 2 INVENTOR BY WW r? 0 A 112/;

A TTORNEYS Patented Oct. 10, 1933 UNITED STATES 1,929,688 vnnma'ron William F. Hirschman, Buffalo, N. Y.

Application September 28, 1931 Serial No. 565,459

3 Claim.

This invention relates to a ventilator mounting which is more particularly intended for discharging air from the interior of buildings through a flue in a wall thereof to the exterior of the same or from one room to another, and has for its object the provision of a ventilator mounting of this character which is simple and compact in construction and permits of readily shifting the ventilator into and out of its operative position relative to the flue to permit of opening and closing the latter andalso to permit of using the same ventilator in connection with different flues and thereby reduce the cost of ventilating difierentparts of a building.

In the accompanying drawings:

Figure 1 is a front elevation of one form of ventilator mounting embodying my improvements.

Figure 2 is a vertical section taken on line 2-2, Fig. 1.

Figure 3 is a horizontal section taken on line 3-3, Fig. 2.

Figure 4 is a vertical section taken on line 4-4, Fig. 3.

Figure 5 is a top plan view of the mounting shown in Figs. 1 and 2.

Figure 6 is a front elevation of the ventilator mounting and one form of closure for the flue.

Figure 7 is a fragmentary-cross section, on an enlarged scale, taken on line '77, Fig. 6 and showing the latter interlocking the edge on the flue cover with a projection on the supporting frame.

Figures 8 and 9 are front views showing modifled forms of ventilator mountings containing this invention.

In the following description similar characters of reference indicate like parts in the several figures of the drawings.

Referring to the construction shown in Figs 1-6, the numeral 10 represents an upright wall of a building which may be either the outer wall of the same or a partition between the rooms thereof. This wall is provided with a horizontal flue or ventilating opening 11 which in the present instance is of circular or cylindrical form.

At the inner end of this flue a ventilator mounting is provided which embodies my improvements and which consist generallyof a frame secured to the wall 10 and a bracket which is movably mounted on this frame and adapted to carry a ventilator so that the latter can be arranged either in an operative position at the inner or front end of the flue or in an operative position on one side thereof, or wholly removed from the frame.

The frame preferably has the form of a ring or annulus and comprises an outer or rearwardly projecting cylindrical flange 12 which is se- 0 cured in the front or inner end of the flue 11 and a front flange 13 which projects laterally from the inner end of the flange 12 and bears against the inside of the wall 10. This frame therefore is of L shape in cross section and may 6 be constructed of standard shapes of angle iron.

. The bracket maybe variously constructed and movably connected with the frame by different means. As shown in Figs. 1-6 this bracket comprises a platform or table 14 which may be constructed of metal or other suitable material so that the same is arranged in a horizontal position and adjacent to the inner or front end of the flue 11 and near the axis thereof. On its underside this platform is provided with a downwardly projecting lower supporting arm 15 the upper end of which is secured to this platform adjacent the rear edge thereof while the lower end thereof is detachably connected with the lower part of the circular frame on the wall 10.

To the underside of the platform adjacent the front end thereof is secured a cross bar 16 and adjacent to opposite longitudinal edges of the platform are arranged two upwardly projecting upper supporting bars 1'7 each of which is connected at its lower end with one end of the cross bar 16 while its upper end is detachably secured to the upper part of the supporting frame. The platform 14 is spaced apart from the wall 10 and the supporting frame and the several supporting arms 15 and 17 are curved rearwardly from the platform toward the supporting frame, as shown in Figs. 1 and 5. Upon the platform 14 is mounted a ventilator whereby the air within the respective room is forced outwardly through the flue in the wall 10 when the same is .open and expelled into the outer atmosphere or into another room.

' Although this ventilator may be of any suitable construction the same is preferably electrically operated and comprises an electric motor 18 which is secured to the top of the platform 14 and provided with a horizontal, longitudinal driving shaft 19 having its rear end projecting into the front part of the flue 11, and a propeller or fan wheel 20 secured to the rear 'end of the motor shaft and rotating within the front part-of the flue, as best shown in Figs. 1 and 2. The electric current for operating the motor for this ventila tor may be supplied from any suitable source and in any approved manner and controlled by a switch 8 on the adjacent part of the Wall.

The bracket is movably connected with the supporting frame so as to permit the ventilator mounted on the bracket to be moved into its operative position for drawing air out of the room and expelling the same through the flue, as shown in Figs. 1 and 2, and also permit this bracket to be moved relative to said frame so as to carry the ventilator into an inoperative position or away from this flue when access is desired to the latter for closing the same or when it is desired to shift this ventilator from one flue of the building to another, depending on the space to be ventilated. The means for accomplishing this purpose shown in Figs. 1-6 consist of a detachable connection between the rear end of each of the supporting arms and the adjacent part of the supporting frame which detachable connection preferably comprises a locking lug 9 which has its rear side connected with the radial flange 13 of the frame and is provided with a downwardly tapering socket 21 while its front side is provided with a vertical slot 22, and a downwardly tapering tenon 23 arranged at the rear end of each supporting arm and adapted to engage with the socket 21 while the adjacent supporting arm associated with this tenon engages with the vertical slot 22 of the socket, as shown in Figs. 3 and 4.

Engagement of this tenon with the respective socket is effected by moving this tenon downwardly into the socket until these parts engage firmly with each other with a wedging fit and disengagement of the same is effected by lifting the respective tenon out of the companion socket.

By this means the supporting frame with the ventilator mounted thereon may be readily connected with the supporting frame for holding the ventilator in its operative position relative to the flue and it may also readily be detached from the frame when access to the flue-is desired for closing the same and also for tlidpurpose of mounting this ventilator on the frame of another flue in case it is desired to use the same ventilator for expelling air through different flues of the same building and thereby avoid the cost of providing separate ventilators for each flue or ventilating opening.

When the ventilator supporting bracket is removed from the supporting frame the flue may be closed by means of a cover of any suitable construction. As shown in Figs. 6 and 7 this cover, by way of example, consists of a closure disk 24 which is adapted to extend across the flue area and engage its peripheral edge of marginal parts with the front side of the supporting frame. This cover disk may be held in this position by engaging its peripheral edge portion with the shoulders 7 on the rear sides of the several locking lugs 9. Disengagement of this peripheral edge of the cover from behind the locking lugs is effected by providing the edge of the cover with a plurality of clearance notches 25 each of which is sufficiently large so that when this notch is brought into line with the respective locking lug 9 a clearance will be provided between the cover and locking lug which enables the cover to be moved forwardly away from the supporting frame and detached therefrom. Manipulation of the cover for this purpose is possible by means of handles 26 of any suitable form mounted on the front side thereof, as shown in Fig. 6.

In the construction shown in Fig. 8 the platform 141 supporting the electric motor of the ventilator is provided with cross bars 27 and 28 .ends' with downwardly and rearwardly curved lower supporting arms 33 each of which is pivotally connected at its rear end with the lower part of the supporting frame by means of a pivot bolt 34 passing through a pair of forwardly projecting hinge lugs 35 on the frame and a laterally projecting hinge lug 36 on the rear end of the respective lower supporting arm 33. The axes of the hinge bolt 31 of one of the upper supporting arms 29 and the hinge bolt 34 of the lower supporting arm 33 on the corresponding'side of the ventilator are vertically in line so that upon removing one pair of these hinge bolts from the bracket and frame on one side of the ventilator it is possible to utilize the hinge bolts in the cor responding lower and upper supporting arms on the other side of the ventilator as pivots, whereby the supporting bracket together with the ventilator mounted thereon may be swung from the operative position of the ventilator which is axially in line with the flue, as shown by full lines in Fig. 8 to a position on one side of this flue, as shown by dotted lines in the same figure, when it is desired to render the ventilator inoperative. While the ventilator is in this inoperative position the flue may be covered by a closure of any suitable character in order to shut off communication between the spaces on opposite sides of the wall in which the flue is formed. In the construction shown in Fig. 8 this closure consists of a plurality of louvers 37 which are pivotally mounted across the rear or outer end-of-the flue so that they may be shifted into a position in which they either open or close the flue in the well known "manner for operating a closure of this character. If desired the frame and ventilator shown in Fig. 8 may be wholly removed from the frame which surrounds the flue in the wall.

Instead of swinging the supporting bracket horizontally for shifting the ventilator into and out of its operative position the same result may be accomplished by moving the supporting bracket together with the ventilator mounted thereon in a vertical direction. Such a construction is shown in Fig. 9 and as there portrayed each of the lower arms 33 of the supporting bracket has its lower end pivotally connected with the lower part of the supporting frame by means of a horizontal bolt 38 passing through a .pair of hinge lugs 39 on the lower part of the supporting frame and a hinge lug 40 of the respective lower supporting arm 33 which is received between the respective hinge lugs 39. The axes of the twolower hinge bolts 38 are horizontally in line so that the supporting bracket can be swung upwardly for bringing the ventilator into its operative position or axially in line with the flue as shown by full lines in Fig. 9, or the same may be swung downwardly so that the ventilator and the bracket clear the flue, as shown by dotted lines in Fig. 9, and thereby afford access to the flue for any purpose which is desired, such as opening and closing the louvers 37 which are employed as a closure for this flue and also to permit natural ventilation through this flue when desired. The supporting bracket may be held in its operative position with reference to the supporting frame in the construction shown in Fig. 9 by means of retaining bolts 41 each of which passes through a pair of retaining or looking lugs 42 on the upper part of the supporting frame and a retaining lug 43 on the respective upper supporting arm 29 which is received between the pair of lugs 42.

Upon removing the retaining lugs 41, the respective support therefor, together with the ventilator mounted thereon, vertically into and out of its operative position, and by additionally removing the hinge bolts 38 at the arms 33, it is possible to also wholly remove the supporting bracket and the ventilator from the supporting frame and reassemble the same with the frame of another ventilator opening or flue in case the same ventilator is to be used in connection with a plurality of different ventilator openings in the building.

These means of movably mounting a ventilator on the wall of a building relative to a ventilating flue or opening therein are very simple in construction and not only capable of being produced at low cost but also permit of easily and conveniently shifting the ventilator into its operative position when the same is required for use and also out of its operative position when no longer required, and also is readily transportable from one ventilator opening to another. The skeleton form of the supporting bracket upon which the ventilator is mounted presents a minimum amount of obstruction to the passage of the air from the room toward the ventilator flue so that the maximum ventilating effect of the fan or blower may be obtained. The same is also neat in appearance so as not to detract from the appearance of the room in which the same is installed. Owing to the light weight of the supporting frame the same can be shifted easily into and out of its operative position and transported from one ventilating flue to another and thus may be readily swung enable different rooms in the building to be venti lated economically by the use of the same ventilator.

I claim as my invention:

1. A mounting for supporting a ventilator adjacent to a flue in the wall of a building comprising a frame secured to said wall around the flue therein, and a bracket comprising a platform normally arranged opposite the central part of said flue and adapted to support a motor, front and rear cross bars secured to the front and rear parts of said platform, upper arms extending laterally from opposite ends of said front cross bar and connected with the upper part of said frame and lower arms extending laterally from opposite ends of said rear cross bar and connected with the lower part of said frame.

2. A mounting for supporting a ventilator adjacent to a fiue in a wall comprising a frame adapted to be secured to said wall around said flue and provided with a plurality of lugs each having a tapering socket and a rearwardly facing shoulder, a movable bracket having arms terminating in tapering ets, a ventilator mounted on said bracket and having a motor and an' air propelling fan, and a plate shaped cover adapted to extend across said flue and to engage its edge portion between the front side of said frame and the shoulders on the rear sides of said lugs and also having notches in its edge for clearing said lugs and removing said cover from said frame.

3. A mounting for supporting a ventilator adjacent to a flue in the wall of a building comprising a frame secured to said wall around said flue, and a bracket for supporting a ventilating fan and motor on said frame, comprising a horizontal platform normally arranged opposite to the central part of said flue and adapted to be secured to said motor, an upper arm extending from the front part of said platform upwardly and rearwardly to said frame, and a lower arm extending from the rear part of said platform downwardly and rearwardly to said frame.

WILLIAM F. HIRSCHMAN.

tenons engaging said sock-

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