US1604021A - Heating element - Google Patents

Description

Okt. 19 1926.

W. T. CHAMBERLAIN.

HEATING ELEMENT Original Filed'May 31, 1924 2 Shfla-Shsfl 1 INVENTOR WT Charnfierlaiw.

ATTORNEYS Get 19' 1926.

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Patented Get. 19, 1926.

WILLIAM T. CHAMBERLAIN, OF NEW YORK, N. Y.

HEATING ELEMENT.

Original application filed May 31, 1924, Serial No. 717,077. Divided and this application filed April 23,

This invention relates to heating elements, and this application is a division of my original application on air preheater, filed May 31, 1924, Serial No. 717,077.

An object of the invention is to provide a heating element which will quickly take up the heat units and give off the heat units and which is especially adapted for use in connection with the preheater disclosed in my application above referred to although it is to be distinctly understood that I claim the preheater itself for any use to which it can be put.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts which will be more fully hereinafter described and pointed out in the claim.

In the accompanying drawings- Figure 1 is a top plan view of my improved heating element, a portion thereof being broken away;

Figure 2 is a view in front elevation of the heating element shown in Figure 1;

Figure 3 is an enlarged fragmentary view in detail of the construction of the heating element shown in Figures 1 and 2;

Figures 4 and 5 are detail views, illustrating a modified construction of heating element;

Figures 6 and 7 are detail views of parts shown in Figure 3;

Figure 8 is a fragmentary view in elevation, illustrating another modification;

Figure 9 is a view in section on the line 9--9 of Figure 8.

Referring more 2, .3, 6 and 7:

In constructing a heating vide a central post 37 to which arms 38 and 39 are connected. These arms 38 and 39 in their assemblage constitute in effect channels in which spacers 40 are mounted. These spacers 40 may constitute strips, as shown in Figure 6, having notches 41 in one edge properly space particularly to Figures 1,

element I proto receive the wire 42 and the runs of said wire.

Instead of providing spacing strips 40 I may locate angles 43 between the runs of Serial No. 25,333.

wire, as shown in Figures 4 and 5, and to spacethe wires laterally from each other I may provide short sections of wire 44 between the runs of wire and also between the angular spacers 43. 'In constructing the elements a single set of spacers is assembled as the wire indicated by the reference numeral 42 is wound thereon. In other words, the operation is to begin at the center and wind horizontally around and around, spacing the several runs as above indicated, until the winding reaches the desired length, when a set of spacers of proper form are assembled on top of the first winding and the winding begins again, but this time in the opposite direction so that with a single length of wire another element can be formed, and by providing this arrangement of spacers I construct a heating element which is composed mainly of wire with the different runs of wire spaced apart in both directions. Such a construction of heating element presents an enormous amount of radiating surface and also presents a construction which is not liable to be injured or disorgz-inizo by high temperatures, which absorbs the maximum of heat, and which causes or compels the air to filter therethrough and rapidly take up the heat so that the transfer of heat is rapid and of high temperature.

In Figures 8 and 9 I illustrate another modification in which I provide strips 1 between the runs of wire 42, which are curved transversely in an arc suiiicient to provide ample space between the runs of wire anzl allow a neat smooth curve instead of an angle over which they are bent.

I do not wish to be limited, of course. to the exact construction and manner of form ing and spacing the runs of wire but I do claim broadly the idea of heating element of this type composed of a plurality of runs of wire spaced apart both longitudinally and transversely, vertically and horizontally, or in any two directions in which the winding and spacing takes place.

To provide a suitable mounting for the rollers 32 a base framework 45 is provided atthe lower end of each heating element.

Various slight changes and alterations might be made in the general form of the parts described without departing from my invention, and hence I do not limit myself to the precise details set forth but consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of the appended claim.

I claim:

A heating element of the character described, comprising a support, a plurality of windings of wire on said support, and spacers interposed between the wires of the windings both radially and longitudinally and held in place by the windings.

WILLIAM Fr. CHAMBERLAIN.

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