US1732569A

US1732569A - Heater conserver plate

Info

Publication number: US1732569A
Application number: US257362A
Authority: US
Inventors: Scheid Richard
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-02-27
Filing date: 1928-02-27
Publication date: 1929-10-22
Anticipated expiration: 1946-10-22

Description

Oct.v22, 1929. y1Q. scHExD 1,732,569

HEATERCONSERVER PLATE I Filed Feb. 27. 192e Patented Oct. `22, 1929 UNITED STATES RICHARD SCHEID, OF ST..` LOUIS, MISSOURI j i HEATER coivsnnvnn :PLATE Appiication. inea February 27, 192s. "seriai ivazwea.` j u This invention relates to new and useful iinproveinents in heater conserver plates ofthe type used on gas ranges and the lilre.

The principal objects of the invention are to provide a plate so constructed as to deflect flames and heat of a burner toward the open center of the plate and under the base of the utensil supported by said plate, thereby preventing the escape of the heat past the sides lo of the utensil and concentrating the heat under the base thereof.

Further objects of the invention are to provide a heat conserver of the class described which is of durable construction and is arranged so as to support the utensil iii spaced relation with the body of the plate, thereby facilitating the circulation of heat and flame undei the base of the utensil, and which heat conserver can be manufactured at low cost.

Additional objects of the invention are to provide a heat conserver plate having a niarginal inverted trough or pocket for trapping the flames and the heat and deflecting it centrally under the base of the utensil, the latter being supported by suitable projections formed integral with the plate in spaced relation therewith. lith these and other objects in view, my invention consists of certain noyel features and arrangements of parts hereinafter more fully described and claimed and illustrated in the accompanying drawings in which- Figure 1 is a side elevation of the plate showing a utensil in dotted lines supported thereon.

Figure 2 is an enlarged plan view of the heat conserver plate.

Figure 3 is a vertical cross section of the same.

Referring by numerals to the accompanying drawings, 10 indicates a plate having a central opening 11. The outer flange 12 of said plate is curved upwardly in cross section to provide an inverted annular pocket or f trough 111. The outer edge 15 of flange 12'is presented downwardly and terminates a suitable distance below the horizontal plane of the inwardly and horizdntally disposed flange 1G. The latter is formed integral with the curved wall 18 of pocket 14 and the junction of said flange 16 with said wall forms an ogee curve which `thus provides an uninterrupted smooth surface between pocket 14 andthe central opening 11. In this manner the passage of hot air and gasses from the pocket 14 inwardly towardlthe central opening 11 is facilitated and natural circulation is thereby provided so that very little heat escapes outwardly past the edge 15. j

A series of inwardly presented fingers or PATENToFFicE i projections 19 is formed integralwith plate 10 and said fingers preferably project asuitable distance within opening 11 beyond the edge of flangel. These fingers extend upwardly from the upper faceof flange 16,' their thickness being` greater' than the thickness of saidllange so that the upper faces of said projections or fingers are disposed in ahorizontal plane spaced a suitable distance above the horizontal plane of flange 16. Thus, when a utensil is supported by said projections or fingers, a clearance space is provided between flange 16 and the bottoni of the base of said utensil, thereby enabling hotlair and gases to pass outwardly Valong the bottoni of the base and then upwardly past the edge of the base. In this manner heat and gases are induced to circulate from pocket 141 inwardly through the central opening 11 under the bottom of the utensil so that all of the heat generated by the burner is utilized.

The crown portion 12n of flange 12 ispreferably disposed above the horizontal plane of projections 19 so as to provide an annular raised wall which forms a shelter for the base `of the utensil and prevents outside air` currents from interfering with or checking the circulation of hot air and gases in close proximity to the utensil.

The heat conserver plate is preferably formed of a single piece of metal, preferably a casting, which enables the manufacture of plates at low cost and at the same time provides an article of the desired strength and durability necessary to support the utensil.

I claim:

1. A heat conserver plate comprising a single piece member having the marginal portion formed with a downwardly opening trough, the outer edge of which is presented downwardly and the inner edge of which is curved inwardly and terminates in a horizontal plane to form a central opening, and

projections Jformed integral with said plate and projecting radially inward within said opening, the upper faces of said projections being disposed in a plane above thetop of said inward and horizontal edge.

2. A heat conserver plate comprising a single piece casting having the marginal portion formed with a downwardly opening'annular pocket, the outer edge of said marginal portion being presented downwardly' and the inner edge thereof being presented inwardly and terminating in a horizotal plane to form a central opening, said inner edge being disposed in a horizontal plane above the plane of said outer edge, and projections formed integral with saidinner edge and projecting radially inward within said opening, the upperfaces of said projections being disposed in aplane above the plane of said inner edge and below the top ofsaid trough portion.

3. A heat conserver plate comprising a single piece casting having a central opening and an inverted marginal trough opening downwardly,.the outer edge of said trough portion being presenteddownwardly and the inner edge of said trough portion being disf. posed horizontally toA form said central opening, said inner edge being disposed in a plane above the plane of said outer edge and below the planevo the `crown of said trough portion,

and projections formed integral with said 1 plate and projecting radially inward within y said opening, the upper faces of said projections being disposed above the plane of said inner edge.

4.- As a new article of manufacture, a heat conserver plate comprising a single piece casting having its outer portion formed with a marginal pocket opening downwardly, the central portion of said plate being formed perforate and provided with a series oiv integral projections projecting inwardly, said central portion being disposed on a horizontal plane above the plane of the outer edge of said marginal pocket and below theplane of said projections. l j

In testimony whereof I hereunto affix my signature this 23rd day of February 1928.v Y a RICHARD SCHEID.