US343562A - Henry p - Google Patents

Description

Ovens, Domestic, Portable.

T mg

(No Model.)

H. P. BARTLETT.

OVEN.

No. 343,562. Patented June 15, 1886 cm I 6 ca.

PETERS. Phatrrlnhagnpher. Wlmiwm EC HENRY F. BARTLETT, or SBRINGFIELD, MIssouRI, ASSIGNOR OF one .THIRD TO JOHN B. CARSON AND S. A. AND S. 0.

PLACE.

HASELTINE, OF SAME OVEN.

- Application filed J une 3. 1885 Serial No. 167,526. (No model.)

, To all whom it may concern.-

Be it known that I, HENRY F. BARTLETT, a citizen of the United States, residing at Spring field, in the county of Greene and State of Missouri, have invented certain new and useful Improvements in Ovens; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the'same.

My .invention relates to improvements in ovens, the object of which is to provide a cheap, simple, ing heat and for quickly and thoroughly baking by producing a double current of hot air over the top of the things to be baked. These objects I attain by means of the device illustrated in the accompanying drawings, forming a part of this specification. in which- Figure 1 is a view in elevation of the device with the door open. Fig. 2 is a vertical cross-section on the line w a: a: of Fig. 1, looking toward the back of the oven. Fig. 3 is a vertical longitudinal section of the device on the line 3/ y y of Fig. 1. Fig. 4is a detail view of the upper casing for the burner; Fig. 5, a

' view ofthe lower casing. Fig. 6 is a view of the casing and grate detached.

The oven has double walls throughout, the

0 space between them being flues in which the hot air circulates, as indicated by the arrows.

This oven is intended to be used with oil, gasoline, and gas heaters.

Similar letters of reference indicate corresponding parts in the several figures.

A is a door, preferably made hollow, with the walls a a, and provided with suitable hinges and latch to prevent the escape of heat.

Bis a sleeve or casing surrounding the burn- 40 er and entering the flue between the walls G O, by means of holes 0 in the lower wall, 0. The lower edge of said casing, for use on the ordinary grating of the gasoline, &c., stoves, may be provided with slots or notches 1) I), &c.,

5 and projecting pieces I) b, &c., to receive the bars and close the openings between them.

His an extension of the casing B, which extends below the blaze any desired distance to create a draft. For this purpose it is prefand convenient device for sav erably provided with a bottom, h, hole, h", at the lower end. The upper end may. be secured to the upper casing in any desired way,or to the grating K. For this latter purpose the upper end of this lower casing is preferably provided with slots 71.71 &c., to receive the grate-bars K, and projections 71. h, &c., to extend up between them. These projections are cut or slit, h h, &c., leaving the small pieces or strips 7:. h", &c., which may be bent over the ring or rim of the grate, the casing firmly in place. This feature of construction forms the subject of my application No. 180,723, and is not here claimed.

F F F F are the outer and inner side walls of the oven. Between these walls are fluesf f", having a connection with the lower flue, c and an opening, f f, into the oven at or near its top.

D D are the back walls. Between them is a line opening at or near the bottom of the oven, whence the heat must escape that enters the oven at f f, passing down over the contents of the oven. It passes up, through flue d" into the flue e", which is formed by the two upper walls, E E, and is permitted to escape through perforations E E, &c., which are made small, so as to retain theheat as long as possible over the oven. Thus the heatingcurrent passing over the inner wall or casing of the oven after leaving the baking-chamber keeps the same heated to a high degree. In consequence the heating-current as it enters the baking chamber loses no perceptible amount of heat by radiation, and it descends uponthe articles to be cooked in a condition to do its work quickly and evenly.

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

1. The combination, with walls 0 G, having a flue, c of walls F F F F, having flues f 2 and openings ff, wallsD D, having an opening, d, and flue d walls E E, having a flue, e", and perforations E E, 8tc., and a door, A, substantially as shown and described.

2. An oven having an outer and an inner casing, with flues between the two at the top, bottom, sides, and one end thereof, the bothaving a 50 I Q to hold 60.

tom of the outer casing being provided with heating-current, substantially as shown and I0 an opening for the admission of the heatingdescribed.

ch -rent, the flues at the sides communicating In testimony whereof I affix my signature in with the bottom fine and opening into the inpresence of two witnesses. terior casing at the top, the end flue commnnicating with the top flue, the end flue open- HENRY BARTLETT ing into the inner easing at or neanthe bottom Witnesses-z of the same, and the outer casing beingproj N; A.'HASELTINE, vided with openings for the discharge of the W. R. JONES.

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