US1954257A - Vapor hood - Google Patents

Description

April 10, 1934. v J4 NESSEL 1,954,257

VAPOR HOOD Filed March 31, 1930 am: @4155: 4 555 5L, 69L 7% Patented Apr. 10, 1934 UNITED STATES VAPOR HOOD Jesse Nessel, St. Louis, Mo., assignor of one-third to. Elizabeth B. Nessel, one-sixth to Henry N. Urberger, and one-sixth to Charles M. Urberger Application March 31,

Claims.

' This invention pertains to vapor hoods such as may be used in connection with cooking stoves to carry off the vapors produced in cooking, although the invention is not limited to such use.

One of the objects of this invention is to provide a simple and effective structure for a vapor hood which will operate automatically to carry oil the fumes produced in cooking or similar oporations.

Another object of this invention is to provide such a hood so constructed that a separate passage is provided for the fumes to lead them to a flue.

- Another object is to provide such a structure which will'retard or prevent back drafts or a reverse fiow such as might be induced by a gust of wind blowing down the flue.

Another object is to provide such a hood providing a separate vapor passage which is collapsible so that it may be reduced in extent in a convenient manner when not in use or when cooking operations of a limited extent are being carried out.

Another object is to provide such a device with a collapsible structure which will operate efliciently even in its collapsed position.

Further objects will appear from the following description taken in connection with the accompanying drawing which represents a perspective view of an ordinary gas stove to which a hood embodying this invention has been applied, the front wall of the vapor duct being shown as cut away so as to expose the interior portions.

Referring to the drawing, 1 designates a cooking stove such as an ordinary gas stove having open cooking burners 2. In the drawing the stove is shown as provided with an oven 3 although this is not necessary to the invention. In fact the invention may be applied to other operations than cooking where vapors, fumes or gases are to be carried away.

In the case of cooking operations more particularly the escape of fumes or vapors into the kitchen is especially objectionable on account of the fact that such vapors condense on the walls of the room and leave a deposit of grease to which soot and dirt adhere very firmly and which may even penetrate the plaster of the wall so that it is practically impossible to remove.

In accordance with this invention the vapor hood is arranged over the top of the cooking space. As shown in the drawing, the hood comprises a top composed of sections 4 and 5 and arranged below the top is a partition composed of sections 6 and 7. This partition may be perforated or 1930, Serial No. 440,414

otherwise formed to render the same pervious to vapors and gases. The sections 6 and 'l are combined with sections 4 and 5 respectively, to provide the sections of a collapsible duct having a front wall 8, and communicating by a passage 9 with a flue 10 arranged, in the case illustrated, along the back of the hood. It will be seen that the duct or vapor passage formed between the top and the perforated partition is in direct and easy communication with the fiue 10. The latter flue is provided with a connection 11 by means of which communication may be established with a chimney or other flue leading out of the house or with other means for inducing suction in the vapor passage. The connection 11 may, of course, be located anywhere along the flue 10, as for instance, at either end thereof. It may also be convenient as a matter of stove construction to connect the ventilating outlet of the oven 3 with the flue 10. n

It will be seen that the above described structure provides a pair of collapsible sections adapted to telescope one within the other so that the front section may be pushed back within the rear section in order to reduce the extent of the hood and to clear the front portion of the cooking space. The arrangement is such that when moved to collapsed position the perforations of the sections 6 and 'l are arranged to register with one another so that the collapsed partition is still pervious to the vapors and gases. Accordingly, when it is moved to collapsed position cooking operations may be carried on, on the two rear burners and the vapors produced thereby will still be trapped and carried off by the hood.

In order to prevent side drafts from interfering with the action and to more effectively confine the vapors one or more side curtains may be provided. As shown in the drawing a side curtain composed of collapsible sections 12 and 13 is shown depending from the lower part of the hood. The section 13 may be arranged to move in guides 14 and 15 so that it may be adjusted in extent to match the adjustment of the hood. A similar curtain 16 may be arranged along the front side of the hood. In this case, it is convenient to have this curtain hinged along its upper edge so that it may be swung inwardly as indicated in dotted lines. A suitable catch may be provided to hold this curtain in its inner position if desired.

In the operation of this device the vapors arising from the cooking operations pass through the partitions 6, 7, into the passage thereabove and then move rearwardly into the flue l0 and therealong' and out by the connection 11 to the house flue.

It has been found that the heat of these vapors quickly establishes a strong suction passing upwardly through the flue and drawing the vapors through the partition. This partition serves to separate the space wherein the vapors are flowing to the flue 10 from the cooking space therebelow and is effective in preventing side drafts or eddies in the atmosphere of the room from interfering with or breaking up the steady flow of the vapors through this passage. This action, therefore,is effective in setting up and maintaining a continuous flow and, therefore, in maintaining a con-. stant suction set up by the action of the heated vapors in the flue 10 and in the house flue to which the latter is connected. It has also been found that the perforated partition serves as an 1,

effective bafile to retard back drafts, thereby preventing an occasional gust of wind down the chimney from blowing these vapors out into the room. The side curtains 12, 13 and 16 assist in guiding the upward flow of the vapors until they come within the influence of the suction which draws them through the partition and into the vapor space defined thereby. i

While this invention has been described as a unitary device applied to a cooking stove, it will be understood that it is not limited to such app ication and that certain individual features or sub-combinations may be of utility by themselves. It is understood, therefore, that such features or sub-combinations are contemplated by this invention and are within the scope of the appended claims.

' It isobvious that various changes may be made in details of construction, without departing from the spirit of this invention. It is, therefore, understood that this invention is not to be limited to the specific details shown and/or described. Having thus described the'invention, what is claimed is: t

1. A vapor hood, comprising, a sectional top, a flue, and a pervious sectional partition providing with said top a vapor passage leading to said flue, said partition being collapsible with said top to reduce the extent thereof. i

2. A vapor hood, comprising, a sectional top, a flue, and a pervious sectional partition constructed to provide with "said top a collapsible vapor duct leading to saidflue.

3. 'Avapor hood, comprising, a sectional top, a flue, and a pervious sectional partition constructed to provide "with said top a sectional telescoping vapor duct leading to said flue.

'4. A' vapor hood, comprising, a sectional top, 7

a flue, a pervious sectional partition providin with said top a vapor duct adapted to lead the vapor to said flue, said partition being collapsible with said top to reduce the extent thereof, and a collapsible side curtain depending below said partition.

5. In a cooking stove having an open cooking burner, a vapor hood over said burner, comprising, a sectional top, a flue, and a pervious sectional partition providing with said top a vapor duct adapted to lead the vapor to said flue, said partition being collapsible with said top to reduce the extent thereof.

6. In a cooking stove having an open cooking burner, a vapor hood over said burner, comprising, a sectional top, a flue, a pervious sectional partition providing with said top a vapor duct adapted to lead the vapor to said flue, said partition being collapsible with said top to reduce the extent thereof and a collapsible side curtain depending below said partition.

7. In a cooking stove having an open burner, a vapor hood over said burner, comprising, a sectional top, a flue therealong, a perforated. sec tional partition forming with said top a collapsible vapor duct communicating with said flue,

an open burner, a vapor hood comprising, a top.

mounted above said burner, a foraminous partition positioned below said top and forming therewith a vapor duct, means providing a collecting passage above and extending along said top at the rear thereof adapted to receive vapors from said duct, an upwardly extending flue and means connecting said passage to. said flue. I

10. In combination with a cooking stove having an open burner; avapor hood comprising, a

top mounted above said burner, a substantially horizontal foraminous partition positioned below and nearsaid top and forming therewith a vertically shallow vapor duct, means providing a substantially horizontal collecting passage extending above and along the rear of and in communication with said duct, and an upwardly extending flue connected to said passage. p

- JESSE NESSEL.

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