US1810132A - Heat distributor plate for cook stoves - Google Patents

Description

June 16, 1931. F. v. DETWILER HEAT DISTRIBUTOR PLATE FORCOOK STOVES Filed Sept. 30, 1929 2 Sheets-Sheet l lllll 4.

June 16, 1931. F. v. nr-:TwlLr-:R 1,810,132

HEAT DISTRIBUTOR PLATE FOR COOK STOVES Filed Sept. 30. 1929- 2 Sheets-Sheet 2 Patented June 16, 1931 eric FOREST V. DETWILER, OF GRAND RAPIDS, MC-LIG-AN HEAT nisrninnrcn rnnrnroa ccoizsrovns Application filed September 30, 1929. Serial 110,396,099.

This invention relates to improvements in heat distributor plates, particularly adaptedV though not necessarily llimited. in use with cook stoves, and one of the objects of the invention is to provide an improved plate of this character so constructed that the products of combustion or heat from the heating medium, whether vapor or electric, will be directed to and confined against substantially the entire area of the bottom of the cooking vessel or container which is placed thereupon, rand at the same time prevent the loss of the benefit of the heat units through the escape thereof beyond the circumference of the'pot or receptacle. y

A further object isto provide in a plate of this character improved means for indue'- ing circulation of the heat4 units between the plate and the bottom of the pot or receptacle resting thereupon.

A further object is'to .provide an improved plate of this character having means for comer pensating vessels of varying si'zes'and diameters.

To the attainment'of these ends and the accomplishment of other'new andvuseful objects as will appear, the invention vconsists in the features of noveltyjin substantially the construction, combination and arrangement described and claimed and shown inthe accompanying drawings illustrating'this in-v Figure3 is a View similar to Figure 1 of a modified form of plate. Y

Figure 4 isla vertical sectional view 'of the top of a cook stove vhaving plates of" this character constructed in accordance with' the principles of this invention associated'therewith.

vFigure 5 is a view similar to Figure 1 of a modified form of the invention and showing of the several parts hereinafter more fully Figure 2 is a top planviewofthe plate.Y

the lsame adapted for use in connection with an electric heating element. f Figure 6 is a view taken on line 6%61Figure 5, with parts omittedy and with parts broken away.

Referring more particularly to the drawings and to the form of the invention shown in Figures 1 and 2, the numeral 10 designates generally the top of a cook stove having an opening 11 therein, through which the heat or products of combustion from the burner 12 are directed.

The heat distributor plate in this form 'of the invention is of an annular construction having an opening 13 at the centerrthereof adapted to be arranged in register with the opening 11 in the top of the stove. The body portion 14 of thevplate inclines upwardly from the opening 13 toward the periphery of the plate and merges into'a flanged' portion 15 whichdepends below the body portion and also projects fora short distance thereabove as at 16. f Y

Encompassing the opening 13-'is a depending flange 17 and the base of the flange k17 preferably though not necessarily, terminates in the same plane as the base of the flange 15.*`

' The flange17'y alsoprojects for a short distance above the top k'of the body portion 14 as at 18.

The flanges 15 and 17 form the support forl the plate to rest upon the top of the stove 10 and the opening 13 at the center of the plate is of a diameter somewhat larger than the diameter of the burnery or heating medi-'Av um .12. j

Projecting above the upper surface ofthe body portion 14 and intermediate the flanges in staggered relation with respect to eachl `other so 4that when the receptacle 2L such as a pan, pot or the like is placed upon the inc plate the products of combustion or heat from the heating element l2 which enters the opening 13 will be directed against the bottom of the cooking receptacle 21 and the openings 2() will permit the products of combustion to pass across the bottom of the receptacle and will be caused to circulate lby reason of the staggered. relation of the openings 20.

By providing an inclined body portion 14 it will be manifest that the plate will compensate varying sizes or diameters of cooking vessels placed thereupon and at the same time the projections 19 with the openings 2U therethrough will insure a circulation of the products of combustion against and across the bottom of the cooking utensil. At the same time the products of combustion will be directed throughout substantially the entire area of the bottom of the utensil and the heat units will not be lost by the escape of the heat units beyond the periphery of the cooking utensil, until after they have circulated across the bottom thereof, thereby utilizing all of the heat units.

In the form of the invention shown in Figure 3, the body portion 22 of the plate is substantially horizontal and is provided with an opening 23 at the center thereof. A flange 24 encompasses the opening 23 and depends below7 the body portion 22 and also above the upper surface ofthe body portion as at 25.

A peripheral flange 2G encompasses the plate and depends therebelow, the lower edge thereof terminating in the same plane as the lower edge of the flange 24. A portion of the flange 26 projects above the top of the body portion 22 as at 27, similar to the flange 25.

Intermediate the flanges 25 and 27 are ribs or projections 28 which extend circumferentially about the body 22 and are spaced from each other. These flanges 25-27 and the projections 28 may be provided with openings 29 and extending through the top thereof so as to permit t-he products of combustion to circulate across the bottom of the cooking utensil 30. c

The body portion 22 may be provided with openings 81 extending therethrough and intermediate the adjacent flanges and projections 25-27, 28, so that when the dist-ributor plate is placed upon the top of the stove the products of combustion from the heating element will be circulated against the bottom of the cooking utensil. At the same time air will enter the openings 31 from beneath the plate and will operate to induce the circulation of the products of combustion across the bottom of the cooking utensil.

As shown in Figure 4, there is illustrated the top of a stove designated generally by the reference numeral 32, which is removably supported in position in a manner similar to the tops or grills now on all gas stoves. In the form of the invention shown, the top 32 is prov-ided with openings 33 having supporting flanges 34 encompassing the openings. One of the plates 14 is placed in each of the openings 33 and the flanges 34 are so arranged that the upper edge of the flange 16 of the plate will project only a short distance above the stove top 32.

If desired and as a means for providing for safety or to permit the escape of any excess heat which may accumulate under the top 32, openings 35 may be provided through the top 32 for that purpose and these openings are 'preferably arranged along the edge of the top.

As shown in Figures 5 and 6, the invent-ion is adapted for use with an electric heating element 36. In this form of the invention a flange 37 encompasses the central opening 38. This flange depends below the body portion 89, the latter inclining upwardly towards the periphery thereof and the circumferential flange 40 depends below the periphery of the body portion, the lower edges of the flanges 40 and 37 preferably terminating in the same plane.

The heating element 36 is supported in the stove top 41 in any suitable manner well known in this art and proj-ects for a slight distance above the top 41 of the stove, so that when the plate 39 is placed in position the heating element will extend into the opening 36.

The body portion of the plate'39 is imperforate and is preferably provided with a circumferential groove 42 opening through the upper face thereof and adjacent the periphery for the reception of the lower edge 43 of a cover 44 that is adapted to be removably placed thereupon.

If desired a supplemental heat distributing plate 45V may be used in connection with the plate 39, but the specific construction of the plate 45 constitutes no part of the present invention, suffice it to say that the plate 45 may be supported by suitable legs 46 adapted to rest upon the surface of the plate 39.

The heating element is controlled by means of a suitable switch or controlling device 48.

In either form of the invention it will be manifest that when a cooking utensil is placed upon the top of the plate, the heating units will be confined againstthe bottom of the utensil and will be circulated thereover and the loss of the heat units by escaping beyond the periphery of the cooking utensil before they contact with the bottom of the cooking utensil will be reduced to a minimum.

The heat distributor plate may be constructed of any desired size and configuration and of any suitable material, and while in the present forms of the invention the same is shown as being formed of cast material, it is to be understood that they may be formed of sheet material stamped into shape.

The plates are adapted for use with any form of stove and may be readily removed l., when not desired.

In the form of the invention shown in Figure 4, the grilles now forming the top of gas stoves which extend kover the burners, may be removed and the top 32 placed in position so that the heating plates may be used in connection Y with the openings 33 therethrough.

While the preferred forms of the invention have been herein shown and described, it is to be understood that various changes may be made in the details of construction and in the combination and arrangement of the severaly parts, within the scope of the claims, without departing from the spirit of this invention.

What is claimed as new is l. A heat distributor plate for cooking purposes, said plate having an opening of considerable size therethrough at the center thereof, a downwardly projecting imperforate flange encompassing said opening, and a downwardly projecting imperforate flange encompassing the periphery of the plate, the lower edges of said flanges being in substantially the same plane.

2. A heat distributor plate for cooking purposes, said plate having an opening of considerable size therethrough atl the center thereof, a downwardly projecting imperforate flange encompassing said opening, a

downwardly projecting imperforate flange encompassing the periphery of the plate, the lower edges of said flanges being in substantially the same plane, and raised ribs projecting above the top surface of the plate.

3. A heat distributor plate for cooking purposes, said plate having an opening of considerable size therethrough at the center thereof, a downwardly projecting flange encompassing said opening, a downwardly projecting flange encompassing the periphery of the plate, the lower edges of said flanges being in substantially the same plane, and raised annular ribs projecting above the top surface of the plate, there being openings through the ribs, said openings being arranged in staggered relation.

4. A heat distributor plate for cooking purposes, said plate `having an opening of substantial size therethrough at the Center thereof, a downwardly projecting substantially vertical flange encompassing said opening whereby substantially all of the heat units from a burner beneath said opening will be directed across the top` surface of the plate, and a downwardly projecting flange encompassing the periphery of the plate, the lower edges of said flanges being in substantially the saine plane, the body port tion of the plate inclining upwardly from said opening towardslthe periphery ofv the plate.

5. An annular heat cooking purposes, and `spaced. downwardly project-ing flanges encompassing the inner and outerperipheries of the plate, the inner flange being substantially vertical'whereby substantially all of the heat units will pass over the top surface of the plate, the said plate inclining upwardly from the inner to the outer periphery thereof.

v6. An annular heat distributorplate forcooking purposes, spaced downwardly project-ing flanges encompassing the inner and outer peripheries of the plate, and upwardly 5 downwardly projecting flanges encompassing y the inner and outer peripheries of the plate, and upwardly projecting annular ribs extending above the upper face of the plate', there being openings through the plate intermediate said ribs 9. As an integral structure, an annular heat distributing plate for cooking purposes, spaced downwardly projecting k'flanges encompassing the inner and outer periphery of the plate,thel said plate inclining upwardly from, the inner to the `outer circumference thereof, and-a groove or recess adjacentthe outer' periphery of the plateopening through the top thereof and extending therearound.

10. As an integral structure, an annular heat distributing plate for cooking purposes, spaced downwardly projecting flanges yencompassing the inner and outer periphery of the plate, and spaced concentrically arranged upwardly projecting ribs extending above the top of the plate.

11. A n annular heat distributing plate for cookingpurposes, spaced downwardly projecting flanges encompassing the innerl and outer periphery of the plate, and spaced concentrically arranged upwardly projecting ribs extending above the top of the plate,

,distributor plate for there being openings transversely through the ribs arranged in staggered relation.

l2. An annular heat distributing plate for cooking purposes, spaced downwardly project-ing flanges encompassing the inner and outer periphery of the plate, and spaced concentrically arranged upwardly projecting ribs extending above the top of the plate, there being openings transversely through the ribs arranged in staggered relation, there being openings through the body of the plate intermediate said ribs.

13. An annular heat distributing plate for cooking purposes, spaced downwardly pron jecting flanges encompassing the inner and outer periphey of the plate, and spacedconcentrically arranged upwardly projecting ribs extending above the top of the plate, in combination With a stove top having a burner opening therethrough and into which opening said plate is adapted to be inserted, and means for supporting the plate in the said opening.

14. A heat distributor plate for cooking purposes having an opening of substantial size therethrough, a downwardly projecting flange encompassing the said opening, and spaced concentrically arranged projections extending above the top of the plate, in combination with a stove top having a burner opening therethrough and in which last said opening the plate is arranged, the said flange serving to direct substantially all of the products of combustion from the burner beneath said opening, to iow across the top of the plate.

15. A heat distributor plate for cooking purposes having -an opening of substantial size therethrough, a downwardly projecting fiange encompassing the said opening, and spaced concentrically arranged projections extending above the top of the plate, in combination with a stove top having a burner opening therethrough and in which last said opening the plate is arranged, the said flange serving to direct substantially all of the products of combustion from the burner beneath said opening, to flow across the top of the plate, the body of said plate inclining up- 1 Wardly from saidk opening.

In testimony whereof I have signed my name to this specification, on this 21st day of September, A. 11.1929.

FOREST V. DETWILER.

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