US1728214A - Fireplace heater - Google Patents

Description

Sept. 17, 1929.

O. C. MYER FIREPLACE HEATER Filed Feb. 21. 1927 5 III him IN VEN TOR. 07-1-0 C. MyEe. M?

' ATTORNEY Patented Sept. 17, 1929 PATENT OTTO C. MYER, OF OAKLAND, CALIFORNIA FIREPLACE HEATER Application filed February 21, 1927. Serial No. 169,940.

The invention relates to improvements provided infireplace heaters for use in open fireplaces, the objects of which are to provide for greater efficiency and to eliminate many of the troublesome features common with the present type of said heaters.

An object of the invention is to, first, improve the construction of heaters of the type described so as to provide a clear throat over the fireplace and thus eliminate pipes and other obstructions that have a tendency to obstruct the smoke. Second, to provide an improved type of air chamber having the innermost metal surface thereof adjacent to the fireplace shaped into the form of an arc and so arranged with respect to the fireplace as to retard the flame therein and keep same from rapidly going up the flue, thus forcing more heat through the metal and into the air chamber; the arc shaped inner surface of the air chamber further'having a tendency to radiate heat out of the fireplace heater, the improved construction of the air chamber thus providing a greater degree of heat for the same amount of fuel consumed and, therefore, enabling the fireplace heater to have a higher efiiciency.

Another object of the invention is to pro- Vide the rear legs and the sides of the heater with angular shaped corners so that the fire wall of the fireplace heater may be fitted into said corners and incased with mortar and thereby making it impossible for smoke from the fireplace to ever leak into the air heating chamber.

A further object of the invention is to provide the heater with adjustable legs so that same may be adjusted to fit different height fireplaces.

The invention possesses other objects and features of advantage, some of which, with the foregoing, will be made manifest in the following description of the preferred form of the invention which is illustrated in the drawings accompanying and forming part of the application.

It is to be understood that it is not intended to limit the invention to the embodiment shown by said drawings and description as variations may be adapted within the scope of the invention as set forthin the claim.

In the accompanying drawings:

Figure 1 is a vertical sectional view taken on lines AA of Figure 2 showing one type of fireplace and heater involving the lnvention.

Figure 2 is a front elevation of the fireplace and heater. t

Figure 3 is a heater.

Figure 4 is a horizontal sectional view taken through the air heating air chamber 011 lines B-B Fig. 2 showing the method of discharging the hot air out of theair chamber around each side of the flue and the fireplace. I

Figure 5 is a sectional view taken on line CC of Figure 3 showing the angular shape of one of the rear legs of the heater.

According to the construction shown, there perspective view of the is illustrated in Figures 1 and 2 an open' fireplace of box like structure having inner side walls 6 and a front and rear wall 7 and 8, respectively, it being understood that the width and depth of the fireplace and the smoke flue extendingthereabove may be of any proportional size or shape that will best accommodate the invention which will hereinafter be described.

The improved heater is -made ofa suitable metal and mounted in the fireplace as shown in Figure 1. The numeral 9 designates an improved air heating chamber having the innermostface 10 thereof formed in the shape of an arc and which extends over and above the fireplace so as to prevent the flame from rapidly going up the flue and also to reflect a portionjof the heat out of the fireplace.

An air inlet 11 is' provided to supply air to the chamber 9 and it is to be noted that said air inlet 11 leads from said chamber 9 to the front side of thefireplace, bringing air to the chamber 9; from the inside and not" the outside and thereby preventing any possibility of cold air from the outside blowing through the chamber. The air chamber 9 is further provided with an im- OFFICE proved outlet 12 that leads therefrom to and around each side wall 6 as shown in Figure 4. It will, therefore, be particularly observed that the air that enters said chamber 9 passes therethrough around the side walls 6 and out of the openings 12 on each side of the fireplace, thus eliminating all pipes and other obstructions in the smoke flue which has a tendency to retard the smoke and often cause same to come out of the fireplace and into the room that is being heated.

The several legs 14 and 15 of theheater are made adjustable by having each leg 15 made in two separate pieces, the lateral sides 1 of which are adapted to fit against one another, and are provided with a plurality of holes 16 that are adapted to carry a bolt 17 having a nut 18. By moving the legs up or down, they maybe easily adjusted as to height and held fastened secure to the heater by simply placing the bolt 17 into one or the other .of the various holes 16. As many fireplaces are of different height, 5 the adjustable feature enables the heater to beadjusted to fit any height fireplace. Al-

so, by raising or lowering the front legs 15 in different proportion to the rear legs 14:, the angle of the air chamber 9 may be changed to fit different fireplaces and different conditions.

Provision is made to prevent smoke from ever leaking into the air heating chamber 9 by providing angular shaped rear legs 14c and also by extending the top and bottom and side faces 19 of the heating chamber 9 beyond the outermost curved surface 10 of said chamber. These corners thus formed, shown in Figure '3, allows the fire-wall 6 to be fitted into said corners and incased therearound with mortar making an absolute smoke tight joint, positively preventing any smoke from the fireplace leaking into said air heating chamber and finally into the room that is being heated.

A damper 20 of any standard make is provided and located in the smoke flue'to regulate the opening therethrough. In the present illustration a standard hinged clamper is shown, but a sliding damper, or any other standard type, may be used, it being understood that the damper in itself does not constitute a part of the invention.

From theforegoing it will be observed that the heater herein described is simple and practical and has many advantageous features. The air which enters the chamber 9 through inlet 11 is heated as it passes through said chamber and is discharged in- ;to the room without, inany way, obstructing the smoke flue, and other heatis reflected into the roomfby the are shaped outermost metal surface of the heating chamber.

Having thus illustrated and described a certain form of construction and arrangement of parts pertaining to the invention, it is to be understood that the improvements may be embodied on any type of fireplace heater, which, obviously, may be built up in any suitable manner, the present illustration not being utilized as indicating the only form of construction into which the parts may be made; and it is desired to include in this application for Letters Patent of the United States of America, all that comes within the range of the invention asset forth in the claim hereinafter mentioned.

lVhat is claimed:

The combination with a fireplace structure having a smoke flue and a damper therein, of an air heater mounted in the fireplace: the said air heater comprising an air chamber having an inwardly curved metal face adapted to fit .over and above the fireplace; the top and bottom and the lateral side faces of said chamber being adapted to extend beyond said curved face and form inside corners,therearound that are adapted to be filled with masonry by walls of the fireplace structure; a plurality of angular shaped legs fastened to the heater; an air inlet leading from the front side of the fireplace and into the lower portion of the air chamber; and an air outlet leading from the upper portion of the air chamber and from the lateral side walls thereof and extending outwardly therefrom beyond each lateral side of the smoke flue and through the front wall of the fireplace structure In testimony whereof, I hereunto afiix my signature.

OTTO C. MYER.

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