US1792585A

US1792585A - Ventilator

Info

Publication number: US1792585A
Application number: US339388A
Authority: US
Inventors: Hertel Anton
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-02-21
Filing date: 1929-02-12
Publication date: 1931-02-17
Anticipated expiration: 1948-02-17

Description

Feb. 17, 1931. A, HERTEL 1,792,585

VENTILA'I'OR Filed Feb. 12, 1929 x Hg] Unventbr a/nfm ai ed? 1 W fiktomeg Patented Feb. 17, 1931 UNITED STATES ANTON HERTEL, OF HEIDELBERG, GERMANY VENTILATOR Application filed February 12, 1929, Serial No. 339,388, and in Germany February 21, 1928.

latter may be unrler control. The invention also comprehends improvements in the details of construction and arrangement of parts which will be hereinafter described and particularly pointed out in the claims.

In the drawings:

Fig. 1 is a horizontal section of a chimney showing the application of the invention.

Fig. 2 is a front view of the ventilator.

Fig. 3 is a vertical section on the line 3'3 of Fig. 2.

a designates a portion of a chimney having an opening I). Inserted in the opening I) is a cylindricalcasing'c, open at its inner end, and covered on its outer end with an ornamental rosette d, having a series of slots d, the rosette being attached by screws to cars 0 on the cylindrical casing 0.

Mounted in the outer end of the cylindrical casing 0 adjacent the rosette are two flaps or valves e, pivoted at their upper and lower ends at f. These flaps are vertically disposed and are preferably made of thin sheet metal. and when in closed position close the end of the casing against the passage of draft.

It is desirable to limit the opening move ment of the flaps in order to regulate the out-v going draft, and I therefore provide adj ust- I able means to accomplish this function.

This means consists of a slidable stop g, arranged in the, bottom of the casing 0, with means associated therewith for controlling its position.

I Depending from the stop 9 is a lug gt which slot.

ment of the flaps, whereby the position of the off, this at times being desirable.

passes through a slot 0 in the bottom of the casing. The stop is arranged adjacent the lower ends of the flaps j, and is provided with a spring it, having one end attached to said stop and its opposite end attached to the casing, the tension of the spring being such as to draw the stop toward the rear end of the A cord or chain is attached to the front end of the stop, and is guided over a pulley is to a convenient place in the room.

By adjusting the position of the stop, the opening movement of the flaps can readily be controlled and thereby regulate the draft passing from the room, or if desired closing the casing against the passage of air.

In operation, the position of the stop-is regulated, and the air from the, room will open the flaps, and such air will pass to the chimney. If the incoming draft is stronger than the outgoing draft,the flaps or valves will be automatically closed, as well understood in this art. Ifthe flaps open too wide and thereby permit the passage of too much air from the room, the stop 9 is adjusted to the desired position by pulling on the cord or chain and securing the same, hence the opening movement of the flaps is limited. Of course, if the stop is drawn up to contact with the flaps, the draft will be entirely out The rosette presents an ornamental appearance to the ventilator, and the sametime it does not detract from the operation of the flaps.

It is to be understood that the invention is not limited to the use of two flaps, as it is evident one or more may be used if desired.

\Vhat I claim is: 1. A ventilator comprising a casing open at one end, a rosette having openings and arranged over the outer end of the casing, pivotally mounted flaps in the outer end of the casing adjacent the rosette, a stop spring actuated in one direction, in the bottom portion of the casing near the lower ends of the flaps which cooperates with said flaps to regulate their open position, and means for adj usting the position of the stop to regulate the opening of the flaps.

2. A ventilator comprising a casing, piv

otally mounted valve means in the casing, 21 stop'mounted in the casing adapted to be positioned in the path of movement of the valve means, a spring to limit the movement of the stop in one direction, and manual means for moving the stop in the opposite direction, whereby to regulate the opening movement of the valve means.-

In testimony whereof I aflix my signature.

ANTON HERTEL.