US539304A - Steam-boiler - Google Patents

Description

(No Model.)

2 Sheets-Sheet l.

R. REEVES. STEAM BOILBR.

Patented May 14, 1895.

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(No Model.) 2 Sheets-Sheet 2. R. REEVES.

STEAM BOILBR. E l No. 539,304. Patented lMay 14, 189

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RICHARD REEvEs, 0E ToLEDo,oIIIo, AssIcNoR To IIIMSELRAND CONRAD GEORGE, on ANN ARBoR, MICHIGAN.'

4STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 539,304, dated May 14, 1895.

Application filed October 2, 1894:. Serial No.y 524,760. A (No model.)

To al; whom t may concern:

Be It known that I, RICHARD REEVES, of Toledo, in the county of Lucas and State of 0h10, have invented a new and Improved Steam-Boiler, of which the following is a full, clear, and exact description.

rlhe object of the invention is to provide a new and improved steam boiler, which is simple and durable in construction and forms a large heating surface in a comparatively small space. C

The invention consists principally of a crown sheet and re box sides provided at their upper ends withflanges fastened to the said crown sheet.

The invention also consists of certain parts and details, and combinations of the same, as will be fully described hereinafter and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters in'dicate corresponding parts in all the figures.

Figure l is a cross-section of the improve# ment on the line l 1 of Fig. 2. Fig. 2 is a longitudinal section of the same on the 4line 2 2 of Fig. 1. Fig. 3 is a cross-section of part of the improvement on the line 3 3 of Fig. 2. Fig. 4 is a sectional plan view of the same on the line 4 4 of Fig. 2. Fig. 5 is a face view of the rear Hue-sheet. Fig. 6 is a section of the same on theline 6 6 of Fig. 5, and Fig. 7 is a sectional perspective view of part of the flue-chamber.

The improved boiler is provided with an outer shell A made U-shaped', as is plainly illustrated in Fig. l, and closed by the heads B and C, of which the former carries the usual breechng and stack for carrying off the smoke and gases. kIn the head Bis also formed the lire box door, leading to the lire box C', which terminates at its rear end in the flue chamber D, as is plainly indicated in Fig. 2. Within the shell A is also formed the water compartment E, containing the water to be heated to form the steam which gathers in the dome attached in the usual manner to the top of the shell A. The re box C is formed by two f sides C2 having their upper ends curved inward to form the flanges O3, riveted on the semi-circular crown sheet F, fastened at its ends to the shell A, so that part of the water compartment E is-circular, as will be understood by reference to Fig. l.

^ The bottom part of the invertedly curved crown sheet F is connected by rivets at. its rear end with a forwardly extending flange G conforming to the shape of the crown sheet F and projecting from the flue sheet G supporting the rear ends of the dues H, extending through the water compartment E and the front head B, to discharge the smoke and gases into the breeching and stack.

The rear ends of the llues H open into the due chamber D previously mentioned, the latter being formed by the U-shaped crown sheet D2 and a rear head D3, while its front, upper portion is formed by the flue sheet G. The latter is provided on its sides and top with a rearwardly extendingllange G2 riveted to parts of the sides and the top of the sheet D2 forming part of the Hue chamber D. The

head D3 is likewise riveted at its sides and top to the crown sheet D2,as will be readily understood by reference to Figs. 2 and 4.. The crown sheet D2 for-.the flue chamber D, as well as the head D3, are connected by staybolts I, with the shell Aand head C respectively, so that the said chamber D is properly supported and water can circulate around the same.

By the construction described, part of the crown sheet F extends through the water compartment E, so that the water is on both sides of the upper portion of this crown sheet F. See Fig. 1.

By the construction described, the boiler can be very cheaply manufactured, and at the same time presents a very large heating surface within a comparatively smallsized shell.

Having thus fully described my invention, I claim as new and desire to secure-by Letters Patent- 1. In a steam' boiler, the combination of a shell having parallel sides, a curved crownsheetriveted at its ends to the opposite sides of the shell, and fire box sid es secured at their lower ends' to the inner faces of the sides of the shell and spaced away therefrom to form IOO water chambers and having at their upper ends iianged connections with the crown sheet, substantially as set forth.

2. In a steam boiler, the combination of a shell having a curved central portion and parallel sides, and a curved crown sheet riveted at its ends to the inner faces of the parallel sides whereby a water chamber is formed at the top of the shell and a-ire box at the bottom thereof, substantially as set forth.

3. In a steam boiler, the combination of a shell having a U-shape in cross section, `a curved crown-sheet connected at its ends to the inner sides of said shell,- and 'dre-box sides extending parallel to the'extremities of said shell and having flanged conn ections with the crown sheet at their upper ends, substantially as set forth.

4. A boiler comprising a shell, heads for the ends of the said shell, a fire box having a crown sheet extending into the water compartment of lthe boiler and connected at its sides with the said shell, fire box sides having curved danges at their upper ends to connect with the said crown sheet, a Iiue sheet havingr a forwardly extending liange connected with the said crown sheet, and a flue chamber susthe said crown sheet, substantially as set forth.

6. A steam boiler provided with lire box sides having curved iianges at their upper ends, a semi-circular crown sheet connected with the said lianges of the tire box sides, and a flue sheet having a forwardly extending flange at its lower edge, the said flange being riveted to part of the rear end of the said crown sheet, substantially as shown and described.

RICHARD REEVES.

Witnesses:

IsAAo N. HUNTSBERGER, GEO. F. WELLS.

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