US1649006A - wilcox - Google Patents

Description

Nov. 15, 1927. 1,649,006

L. T. WlLCOX GRATE Filed Feb. 19, 1927 INVENTOR.

ATTORNEY. I

Patented Nov. 15, 1927.

s; :1 .mw wmeox; or PEEKSKILLQ nnw YOItK.

, iAppHcationfledFebruary19,1927. Serial No. 169,444.

This invention. an s to. grates to be placed over the burneriholes in the topsof stoves and more particularly over the more remote" opening in a stove top in wh ch a plurality of openings areassociated with a single burnen,

In the. past, tomarily coveredwith an 0pen gr 1dset into the opening so as to be substantially flush with the upper surface thereof, no attempt being made to influence the flow of heat in any manner by the grid, the gridmerely being used as a means ofsupporting a vessel over the burner opening.

It is the purpose. of this invention to provide a grate orgridv whichwillassist in directing and controlling the flow of heat from a burner to the vessel whichis being heated.- It is alsowithin the contemplation of this invention to provide a' grate whichwill increase the flow of heat as well as direct it to definite areas inpredetermined quantities. V.

These objects hare accomplished by form.- ing the grid with bafiie vanes andbaffiewalls to direct the flow ofheat and by' forming the grate of such dimensions that it will support a vessel slightly abovethesurface of the stove top and thereby createfan 1ncrease in the draught; resulting in greater flow of heat. This latter feature is of pare ticular applicationwhere one burner is utilized to supply the heat for, a pluralityof openings and with; a grate construction 1n accordance with this invention, the entire flow of heat isused to its maximum efii. ciency.

In the drawings there is illustrated a em bodiment of this invention, and inwhich:

i Fig. 1 is a perspective view of a grate member made in accordance with this in-' vention; .1-

Fig. 2 is a longitudinal section through the center of grate member installed in a stove having two burner openings supplied by a single burner, and

Fig. 3 is asectionhon line 3 8 ofFig. 2.

-For purposes of illustration, a circular disk-like grate 1 customarily made ofcast iron has been shown having a substantially open center portion 2 and closed side portions 3 and i which serve as baflle portions. The inner edges of each of the baffle portions 3 and 4 are formed with perpendicular flanges or baflie webs 5. and 6 respectively, which webs extend a substantial distance burner openings were ous- I 1 9,44 1 N i i The front. opening 1a is covered by the .usual fiushgrate: 17 set into a depression above and below the planeiof the disk and 7 and 8 are formed integral with the grate extending from front to rear ofthe grate across the open center portion and parallel to the webs 5 and 6. Vanes 7 and 8 also project" above and below the surface of the closed portions 3 and 4 of the grate. Surrounding the rear and sides of the periphery of the grate is an upstanding verticalbafiie wall, 9, the wall being continuous at the rear portion of the grate and interrupted or serrated at the side portions "as at 10 and stops short of the front portion.

. Theupper edges of vanes 7 andS andof webs5 and 6 are serrated as at 10, the uppermost portions 'allbeing in the same plane andzin the same planewith the upper edge of baffle wall 9 so that a vessel maybe supported thereupon for heating. The grate is 15 int; stove top 12. The heat is conducted -through the, openings by. means of a heat collector 16 shown and described in detail application for patent Serial No; o.

in my closed portions 3 and 4. Similar baflie vanes inathet0p 12, which grate will supporta vessel-over the front opening. The rear opening is covered by the grate 1constr'uct ed n accordance withtlns invention and a vessel supported on top of the grate -i is held above the surface of the stove top 12- upon the raised webs 5 and 6, vanes 8 and wall 9. creating a. draught thereby and inducing a flow of heat. from the burner 13 up and through the grate 1, the front opening closed by the -vessel thereover. Y

The flow of heat is indicated by the arrows in Figs. 2 and 3 fromwhioh it follows being 1 that as the heatedair commonly referred to as heat rises from the burner it strikes the 1 front portion of the top ofthe'stove and the vessel thereon and is deflected and 'directed by the top 12 of the stove and the heat The closed or side bafileportions 3 and 4: direct collector 16 to the rear opening 15.

the heat through the center of the grate, the webs and vanes assisting in keeping the heat evenly distributed and preventing excessive side eddy currents. As the heat continues in its upward path, induced by the draught created by the raised vessel, some of its strikes the rear wall 9 and is deflected forwardly again over the under surface of the vessel whereupon it passes between the serrations in the vanes and webs and not through the openings in the side portions of the baflie wall 9.

It follows therefore that the grid not only assists in inducing a current of heat but in distributing and controlling the flow of the same in a manner whereby it is applied most efficiently to the vessel placed thereover. The grate may readily be removed for cleaning purposes and replaced with assurance that it will be in proper position due to the positioning lu It is obvious that various changes may be made in the details of structure without departing from the spirit and scope of this invention as defined in the appended claims.

I claim:

1. A grate for a stove comprising a ringlike member having battle vanes extending thereacross and projecting above and below the surface of said member to direct heat therethrough and support a vessel thereupon, said vanes being serrated upon the upper edge thereof to permit lateral flow of heat when a vessel is supported thereupon.

2. A grate for a stove comprising a disklike member having an open center portion and imperforate side portions, baffle vanes extending from front to rear across said open center portion and a baflie wall extend- .ing around the rear portion of said member.

3. A grate for a stove comprising a'disklike member having an open center portion and imperforate side portions, battle vanes extending from front to rear across said open center portion and projecting above the plane of said disk member and a baffle wall extending around the rear portion of the periphery of said member.

4. A grate for a stove comprising a disklike member having an open center portion and imperforate side portions, baffle vanes ex-- tending from front to rear across said open center portion and projecting above said disk member and a battle wall extending around the rear portion of said member and projecting upwardly therefrom.

5. A grate for a stove comprising a disklike member having an open center portion and imperforate side portions, bafiie vanes extending from front to rear across said open center portion and projecting above the plane of said disk member, the upper edges thereof being serrated to permit lateral flow of heat, and a baflie wall extending around the rear portion of said member and projecting upwardly therefrom.

6. A grate for a stove comprising a disklike member having an open center portion and imperforate side portions, bafile vanes extending from front to rear across said open center portion and projecting above the plane of said disk member and a battle wall extending around the rear portion of said member and projecting upwardly therefrom substantially the same distance of said vanes, the vanes and said wall serving as a support for a vessel.

7. A grate for a stove comprising a disklike member having an open center portion and imperforate side portions, baffle vanes extending from front to rear across said open center portion and projecting above said disk member and a bafiie wall extending around the rear portion of said member and projecting upwardly therefrom substantially the same distance as said vanes, he vanes and said wall serving as a support for a vessel, said disk-like member having a projection extending therefrom adapted to cooperate with said stove to position said grate.

8. A grate for a stove comprising a disklike member having an open center portion and imperforate side portions, bafiie vanes extending from front to rear across said open center portion and a battle wall extend ing around the rear and sides of the periphery of said disk member, the rear portion of said wall being continuous and the side portions being interrupted.

9. A grate for a stove comprising a disklike member having an open center portion and imperforate side portions, said side portions terminating in bafile webs projecting above said disk members, bathe vanes extending from front to rear across said open center portion and a battle wall extending around the rear portion of said member.

In witness whereof, I hereunto subscribe my signature.

LEWVIS T. VILCOX.

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