US2043429A

US2043429A - Fireplace heater attachment

Info

Publication number: US2043429A
Application number: US709108A
Authority: US
Inventors: Willie R Dobbins
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-01-31
Filing date: 1934-01-31
Publication date: 1936-06-09
Anticipated expiration: 1953-06-09

Description

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W. R. DOBBINS FIREPLACE HEATER ATTACHMENT Filed Jan. 51, 1954 2 Sheets- Sheet 1 W/LL 50w (Ittorneg Mm I?!" fl' w. R. DOBBINS FIREPLACE HEATER ATTACHMENT 2 Sheets-Sheet 2 Filed Jan. 31, 1954 Knnentor,

Gttorneg Patented June 9, 1936 UNITED STATES PATENT. OFFICE FIREPLACE HEATER ATTAonMEN V Willie R. Dobbins, Bostonia, Calif. Application January 31, 1934, Serial No. 709,108

-- ,8 Claims. (01.126-121) My invention relates to fireplace'heater at tachments, and the objectsof my invention are: First, to provide a heater whichis particularly designed to fit fireplaces, utilizing the insulation afforded by the brickwork of the; fireplace as well as the chimney provided therein; p

Second, to provide a heater attachment in which the stack loss isreduced to a minimum thereby ensuring high efficiency;

Third, to provide aheaterattachment which may be designed to burn any standard fuel but is particularly suitable for the burning of crude oil or fuel oil; 4

Fourth, to provide a heater attachment which it incorporates a novel means of pre-heatingthe stack so as to quickly produce alstrong draft thereby reducing or eliminating any tendency for the heater to smoke;

Fifth, to provide 'a heater attachment wherein the heated air does not come. in contact with the burning gases so that the air is heated wit out contamination, and

Sixth, to provide on the whole a novelly constructed fireplace heater attachment which is compact proportional to its capacity, durable, ef-

ficient in its action, and Whichwill not readily deteriorate or get out of order.

With these and other objects in view as will appear hereinafter, my invention consists of certain novel features of construction, combination and arrangement of partsand portions as will be hereinafter described indetail and particularly set forth in the appended claims, reference being had to the accompanying drawings and to the characters-of reference "thereon which form a part of this applicatiomin which:

Figure 1 is a perspective view of the fireplace heater attachment; Fig. 21s a sectional view thereof substantially through 2-2"of Fig. '1, delineating the fireplace inoutlinaand parts and portions of the attachment broken away to facilitate the illustration; Fig. 3 is a partial sectional partial plan view thereof taken through 3--3 of Fig. 4; Fig. 4 is a transverse sectional view taken through 4-5 of Fig; 2, showing the fireplace in outline; and Fig. 5 is 'a similar sectional view taken through 5 -5 of Fig. 2, with the fireplace and casing of the heater'attachment omitted. i

Similar characters of reference refer to simi lar parts and portions throughout the several views of the drawings;

Casing I, cover plate .2, burner compartment 3, 55 burner unit 4, stove means 5, and stack 6 constitute the principal parts and portions of my novel fireplace heater attachment.

The heater attachment is mounted in a casing I which conforms generally to the fireplace, that is the casing is provided with vertical end walls 5 la, a front and back wall lbwhich curves in conformity with the fireplace, and a base I c. The forward or outer side of the casing is closed by a cover plate 2 at the lower side of which are provided air intake gratingsZa and at the upper 10 side of which are mounted air outlet gratings 2b. One of the air intake gratings 2a is mounted on a door 20 to provide access to the burner unit as will be brought out hereinafter. The end walls la, and front and back wall lb of the casl5 ing, are preferably insulated.

Within the casing in registry with the door 20 is a burner compartment 3 which is rectangular and open at its forward side. Track members 3a are provided in the burner compartment from which is suspended a burner unit 4 of any suitable design but preferably an oil burner. The upper wall of the compartment 3 is provided with an opening 31) therein.

A stove means 5 is mounted within the casing I. Said stove means is generally in the form of an inverted U with one leg shorter than the other so as to rest on top of the burner compartment and the other leg rest on the bottom of the casing I. The shorter leg, designated 5a., is circular in section and is joined to the cross portion, designated 5b, which is semi-circular with its flat side facing downwardly. The cross portion 51) in turn joins the remaining leg, designated 5c. The leg 50 is provided with a substan- 35 tially centered partition 5d beginning at a point flush with the under side of the cross portion 517 and extending to a point adjacent but spaced from the bottom end of the leg 50. Said end of the stove means is closed, as indicated by 5e. The upper end of the partition 5d joins a horizontally extending wall, designated 5 which is integral with the under side of the cross portion 5b and which closes the half of the leg facing the leg 5a. Said wall 5) is intersected by a stack 5 6 which projects upwardly through the cross portion 5!) and into the chimney of the fireplace.

The above described portions of the stove means define a curved passage comprising an upwardly directed portion, designated A, a hori- 50 zontally directed portion, designated B, a downwardly directed portion, designated C, then an upwardly directed portion, designated D, which communicates with the stack 6. It will be here noted that the stove means 5 is arranged and positioned so that its heating elements are in the front portion of the fireplace, thus providing eflicient heat radiation from the front. The arrangement of the stove means enables the stack 6 to be located towards the center of the casing I so that the stack may communicate with the chimney of the fireplace. This arrangement has a further importance for upon igniting the burner 4 the heated gases strike against the portion of the stack designated 60. which traverses the passage B formed by the cross portion 512. This heats the column of air in the stack 6 and sets up a draft which aids combustion in the burner 4 and quickly brings the heater to its operating condition. Once the burner is in operation the gases, by the time they reach the smoke stack, are sufiiciently cooled that they prevent overheating of this member by the hot gases passing through the passage B, thereby reducing the likelihood of burning out the stack portion 6a.

Though I have shown and described a particular construction, combination and arrangement of parts and portions, I do not wish to be limited to this particular construction, combination and arrangement, but desire to include in the scope of my invention the construction, combination and arrangement substantially as set forth in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a fireplace heater attachment, the combination with a fireplace of a stove structure mounted with its front side adjacent the front side of said fireplace comprising, an upwardly directed portion, a single laterally directed portion, a single downwardly directed portion and a second upwardly directed portion, all of said portions arranged sequentially in the order named to define a single continuous fiue with its longitudinal axis substantially parallel with the front of the fireplace, the second upwardly directed portion being disposed between the first upwardly directed portion and the downwardly directed portion, a stack joining the second upwardly directed portion and extending upwardly beyond the stove structure into the chimney of said fireplace and extending upwardly beyond the stove structure between the ends thereof as defined by the first upwardly directed portion and the downwardly directed portion, and a burner means below the first upwardly directed portion.

2. In a fireplace heater attachment, the combination with a fireplace of a stove structure mounted with its front side adjacent the front side of said fireplace comprising an inverted U-shaped continuous single passage portion with the longitudinal axis of said passage portion substantially parallel with the front face of the fireplace, and a terminal portion extending upwardly from the extremity of one leg of the U-shaped portion and disposed between the legs of said U-shaped portion, a burner at the lower extremity of the other leg, and a stack extending upwardly from said terminal portion through the substantially horizontal portion of said U-shaped portion into the chimney of said fireplace.

3. In a fireplace heater attachment, the combination with a fireplace of a stove structure mounted with its front side adjacent the front side of said fireplace including a single circular upwardly directed portion, a single semi-circular laterally directed portion, a single semi-circular downwardly directed portion, and a second semicircular upwardly directed portion, all of said portions arranged sequentially in the order named to define a single continuous fiue with its longitudinal axis substantially parallel with the front of said fireplace, the last upwardly directed portion being disposed between the first upwardly directed portion and the downwardly directed portion, a stack joining the second upwardly directed portion and extending directly upwardly beyond the stove structure between the ends thereof as defined by the first upwardly directed portion and the downwardly directed portion and its upper end extending into the chimney of said fireplace, a burner means below the first upwardly directed portion, and a casing fitting around the stove structure but spaced therefrom, said casing having cold air inlets at its lower portion and hot air outlets at its upper portion and forming the front face of the fireplace.

4. In a fireplace heater attachment, the combination with a fireplace of a stove structure mounted with its front side adjacent the front side of said fireplace including an inverted U-shaped continuous single passage portion with its longitudinal axis substantially parallel with the front of the fireplace, and a terminal portion extending upwardly from the extremity of one leg of the U-shaped portion and disposed between the legs of said U-shaped portion, a burner at the extremity of the other leg, a stack extending from midway between the front and back sides of the upper end of said terminal portion, and a casing fitting around the stove structure but spaced therefrom, said casing having cold air inlets at its lower portion and hot air outlets at its upper portion and covering the front face of thefireplace.

5. In a fireplace heater attachment, the combination with a fireplace of a heating chamber structure mounted with its front side adjacent the front side of said fireplace in the form of a continuous single passage inverted U with its longitudinal axis arranged substantially parallel with the front of the fireplace and with one leg having a portion doubled back and disposed between the other portion of said leg and the other leg of the chamber, a burner element mounted below said other leg for directing heated and burnt gases into said chamber, and a stack extending directly upwardly from midway between the front and back sides of the doubled end of the first mentioned leg through and beyond the chamber whereby the chamber surrounds a portion of the stack to initially heat the same.

6. In a fireplace heater attachment, the combination with a fireplace of a stove structure mounted with its front side adjacent the front side of said fireplace including an upwardly directed cylindrical portion, a single laterally directed semi-cylindrical portion, a single downwardly directed semi-cylindrical portion, and a second single upwardly directed semi-cylindrical portion, all of said portions arranged sequentially in the order named to define a flue and all positioned in alinement with each other in the front portion of said fireplace, the second upwardly directed portion being disposed between the first upwardly directed portion and the downwardly directed portion, a burner means below the first upwardly directed portion, and a single vertical stack of contracted size continuing directly upwardly from the second upwardly directed portion through the laterally directed portion, whereby the heated gases in said laterally directed portion initially heat the stack.

'7. In a fireplace heater attachment, the combination with a fireplace of a stove structure mounted with its front side adjacent the front side of said fireplace including a pair of upright cylindrical portions with their vertical axes alined with each other and substantially parallel with the front side of said fireplace, a burner element disposed below one of said cylinder portions, a vertical partition dividing the other cylinder and terminating above its bottom portion, and a conduit connecting the first cylinder with the remote or outside portion of the other cylinder, and a stack extending from the adjacent or inside portion of said other cylinder through the conduit, whereby heated gases passing therealong initially heat the stack.

8. In a fireplace heater attachment, the combination with a fireplace of a stove structure mounted with its front side adjacent the front side of said fireplace including a pair of upright cylinder portions, a burner element disposed below one of said cylinder portions, a vertical partition dividing the other cylinder and terminating above its bottom portion, and a substantially horizontal conduit connecting the first cylinder with the remote or outside portion of the other cylinder and the whole positioned in alinement with the front side of said fireplace, a stack extending from the adjacent or inside portion of the other cylinder, and a casing fitting around the stove structure but spaced therefrom, said casinghaving cold air inlets at its lower portion and hot air outlets at its upper portion and forming the front face of the fireplace and enclosing the same.

WILLIE R. DOBBINS.