US2287743A - Ventilator and smoke remover - Google Patents

Description

June 23, 1942. MGPARTLAND 2,287,743

VENTILATOR AND SMOKE REMOVER Filed March 13, 1940 ATTORNEYS Patented June 23, 1942 UN iTED l i-TENT OFFICE 2,287,743 VENTILATOR'AND SMOKE REMOVER James H. McPartland, St. John, New Brunswick,

This invention relates to ventilators and smoke removers and has for an object to provide an improved construction" which may be usedfor different kinds of outlets for removing smoke and the'like and for directing fresh air inwardly.

Another object o'fthe' invention is to provide a ventilator structure wherein air moving in a substantially horizontal direction from any point may be deflected for producing a suction in a pipe or for producing a downward pressure in the pipe so as to cause smoke or air to be removed outwardly through the pipe or air to move inwardlythrough the pipe.

A further object of the invention is to provide a simplified 'form of ventilator which may be adjusted to direct a desired volume of air downwardly into a ship or other place which is to be supplied with fresh air, the structure being such that the parts may be set to provide an even supply of air regardless of the pressure of the wind a ainst the ventilator,

An additional and more specific object is to provide a ventilator structure which acts to draw smoke or foul air out of a ship or other place and to produce a-whirling action thereof immediately before the same is discharged.

In the accompanying drawing-- Fig. 1 is a longitudinal vertical sectional view through a ventilator and smoke remover disclosing an embodiment of the invention;

Fig. 2 is a view similar to Fig.1 but showing the parts adjusted for directing air downwardly.

into a ship;

Fig. 3 is a top plan view of the structure shown in Fig. 1;

Fig. 4 is a sectional view through Fig. 1 approximately on the line- 4-4.

Referring to the accompanying drawing by numerals, I indicates a pipe which may be a smoke pipe or a ventilating pipe, and 2 indicates the ventilator and smoke removerwhich will be referred to hereinafter as a ventilator and may be caused to function either as a ventilator or as a smoke remover. The ventilator 2, as shown in Fig. .1, is adapted to produce a rarefac-tion or suction in the pipe I, whereby smoke or air may pass as indicated by the arrows3,-which will strike the stationary deflecting members 4 and be caused to whirl.

As shown in Fig. 2, the parts are adjusted so that air is forced downwardly through pipe I, as indicated by the arrows 5. V

In ventilating, it may, at one time, be desired to'suck or draw foul air out of a room or other place and at another time to force air downwardly into a room. On boardship particularly it is desired to force air downwardly into the various rooms and spacesin the ship, and up to the present time, ventilating pipes have been provided and a rotating hood used. To secure the best results of this old method, it is necessary to manually rotate the hood' to face the direction from which the wind is blowing in order that air may be forced downwardly into the lower part of the ship. This adjustment is sometimes very diflicult and where the wind veers from point to point it is very objectionable as it requires the services of a person to continually change the position of the hood. In the present invention these difiiculties have all been overcome as the wind may veer from point to point and, in fact, may pass entirely around the compass without in any way affecting the proper functioning of the ventilator and the proper supplying of air to the lower part of a ship.

Referring particularly toFig. 1, it will be observed that the ventilator 2 is provided with a bottom plate 6 which is shown circular but which could be made square or other shape without departing from the spirit of the invention. This plate is provided with a downwardly extending flange I riveted. or otherwise rigidly secured to pipe I. Four inclined baflie plates 8 are connected to plate 6 and at a higher point with pipe I. The bafiie plates 8 contact at line 9 with the pipe 4 and at their corners II] with each other so that the chamber- II will bean almost airtight chamber. By this arrangement, air entering as indicated by thev arrow I2 may be deflected upwardly toward the top of pipe I regardless of the direction in which the wind is blowing. A hood I3, which tapers from the bottom to the top, is secured to a tubular member I4 fitting over the top of the pipe I and, if desired, is rigidly'secured thereto; The tubular member I4 is connected to pipe I by suitable fins I5, whereby air passing upwardly may freely pass into and through the member I4. The incline of the hood or cone I3 is the same as that of the plates 8, whereby air entering horizontally, as indicated by the arrow I2, will be deflected upwardly and past the fins I5 intothe center part of the tubular member I4 and finally through the plate I6 so as to strike the finsor blades 4. To secure the best results there are provided a number of fins I'I resting on the respective plates 8 and extending upwardly to near the top of pipe I. In the accompanying drawingfour oi these fins areshown but, if desired, more o'r'even less" could be u'sed without departing from the spirit of the invention: At the bottom of each of the plates 8 there is provided a door or shutter I8, which is hinged at I9. These doors are arranged so that they will automatically fall closed, as shown at the left in Fig. 1, when there is no air pressure to open them. As shown at the right in Fig. 1, air is moving inwardly from the right and, consequently, door I8 is open. This arrangement will prevent air entering at the right and then passing out at the left. Any air entering the device must move upwardly and out through the tubular member M.

In case the air pressure is too great for the purpose desired, the cone-shaped shutter may be lowered to close or partly close the space 2i. This space may be completely closed, as indicated in dotted lines in Fig. 1, though ordinarily this space is left completely open or partly open. The cone-shaped shutter 20 has a link 22 on each side connected to the upper edge thereof. These links are connected at 23 and 24 to an arc-shaped bail 25 pivotally mounted at 23 on a suitable bracket 21. An arm 23 extends outwardly from the bail 25 and a cable or other suitable member 29 is connected therewith as shown in Fig. 1. This cable passes through a guiding pipe 30 and carries a hook 3| at the lower end. This hook may be caused to interlock with suitable staples 32 or 33. If desired, a number of staples may be mounted on a suitable support 34, or other fastening means may be used without departing from the spirit of the invention. This arrangement holds the coneshaped shutter in the desired position.

By the arrangement just described, wind may blow against the ventilator from any point of the compass and the ventilator will function to cause the air to move upwardly, as shown in Fig. 1, for producing a suction or rarefaction in the pipe I, to secure a ventilating effect. Where it is desired to cause the air to move downwardly for providing fresh air in the different parts of a ship, the lid 35, which is hinged at 35, is lowered to the position shown in Fig. 2, whereupon the tubular member I4 is closed. Air enterin as indicated by the arrow I2 will move upwardly into the tubular member l4, but as the lid 35 is closed the air cannot pass outwardly in an upward direction and, consequently, must turn and move downwardly as indicated by the arrows 5. The downward pressure of air may be varied by raising or lowering the cone-shaped shutter 26, provided the pressure of air remains constant. If the pressure of air increases or decreases this shutter may be raised or lowered to take care of this condition, but in all events the horizontally moving air may be deflected to produce a suction in pipe I or produce a downward pressure for supplying pure air to a point below the ventilator.

The pipe I may be a smoke stack for drawing smoke therethrough or may be a ventilating pipe for a ship or other device. Preferably pipe I, however, is made as part of the ventilator and is slid over a smoke pipe or a ventilating pipe. This will allow the complete ventilator to be manufactured at the factory and then quickly and easily applied to various type of pipes now in existence.

I claim:

1. A ventilator of the character described, comprising a bottom plate adapted to fit over a pipe, said ventilator including a hood arranged over said bottom plate and surrounding said pipe, said hood being cone-shaped and spaced from said bottom plate, an inner hood connected with said bottom plate and contacting said pipe for providing an annular upwardly inclined space and for deflecting horizontally moving air upwardly to the top of said pipe, and tubular means mounted on the upper end of said hood above the top of the pipe, said tubular means including a closure member adapted to be adjusted so that when it is in its raised position the air will move to a discharge point upwardly and when in its lowered position the air will move downwardly through said pipe.

2. A ventilator including a horizontal bottom plate, a four-sided upwardly tapering member connected with said plat-e, a cone-shaped member arranged above said four-sided upwardly tapering member and spaced from said bottom plate, a pipe extending vertically through the center of both said members, a plurality of doors for closing the opening between said members, hinge means for hinging each door independently, a tubular discharge member connected with the second-mentioned member and extending upwardly therefrom in aXial alignment with said pipe, and a lid for said tubular member whereby when said lid is open air moving horizontally against the ventilator will be deflected upwardly through the tubular member for removing air from said pipe and when said lid is closed air will be deflected upwardly into the tubular member and then downwardly through said pip-e.

3. A ventilator of the character described including a bottom plate, a tubular pipe extending through said bottom plate, a many-sided upwardly tapering member connected with said bottom plate at the bottom and with said pipe at the top above said bottom plate, a cone spaced from and positioned above the many-sided upwardly tapering member and also above said bottom plate whereby horizontally moving air may strike the many-sided upwardly tapering member cone and be deflected upwardly and guided by said cone to the top of said pipe exteriorly thereof for drawing air out of said pipe as the deflected air passes upwardly past the top of the pipe, an annular shutter surrounding the cone and means for raising and lowering said shutter for varying the opening in the cone.

4. A device of the character described including a tubular pipe, a bottom plate connected with said pipe at a distance from the upper end thereof, a many-sided upwardly tapering member having its large bottom end resting on said plate and its small upper end connected with said pipe above said bottom plate whereby horizontally moving air striking the many-sided upwardly tapering member will be deflected upwardly exteriorly of said pipe, an upwardly tapering cone spaced from said many-sided upwardly tapering member and opened at the bottom'which is spaced above said plate, said cone being open at the top adjacent the top of said pipe whereby said deflected air will be confined and directed to a point above said pipe, a tubular member mounted on the upper end of said cone for receiving said air, an annular shutter for varying the entrance opening to the space between said cone and many-sided upwardly tapering member, a pivotally mounted member for supporting said shutter and manually actuated means for moving said pivotally mounted member for varying the position of said shutter.

5. A ventilator including a plate adapted to tightly fit over a pip-e near the upper end thereof, a four-sided upwardly tapering member secured at its large lower end to said plate and member will be deflected upwardly through said tubular continuation for producing a rarefaction in said pipe, a hand-actuated member for closing the upper end of said tubular continuation whereby the upwardly deflected air will move downwardly into said pipe and cone-shaped handactuated vertically movable shutters surrounding part of said second cone for varying the opening between the cone and said plate.

JAMES H1 MCPARTLAND.

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