US347384A - Steam-boiler - Google Patents

Description

QNo Model.) 2 Sheets-Sheet 1.

M. & W. N. RUMELY.

STEAM BOILER.

' No. 347,384. Patented Aug. 17, 1886.

(No Model.) 2 SheetQ-Sheet 2.

M. & W. N. RUMELY. STEAM BOILER- No.34'7,3 84. Patented Aug. 17, 1886 jaw/enters:

' Z119 fliiror. 35 8:

- "UNITED STATES PATENT OFFICE.

MEINRAD RU'MELY AND \VILLIAM N. RUMELY, OF LA FORTE, INDIANA.

STEAM-BOILER.

EFEGIPIGATIQN forming part of Letters Patent No. 347,384, dated August 17, 1886.

Application filed February 20, 1886. Serial No. 192,641.

To all whom it may concern.-

Be it known thatwe, ll/IEINRAD RUMELY and WILLIAM N. RUMELY, citizens of the United States, residing in La Porte, in the county of La Porte and State of Indiana, have invented a new and useful Improvement in Steam-Boilers, of which the following is a specification.

- This invention relates, particularly, to that class of steanrboilers which are designed for use upon road-engines employed for operating thrashing-machines and the like. Such boilers, when used for operating or driving the thrashing-machine, operate as stationary engines, and it is frequent]y'desirable to supply them with straw as fuel. When the thrashing-machiue is being moved from place to place dip or incline the sheet at either end, leaving upon the road, the crownsheet at one end or other of the boiler is liable to be left dry or bare at one end or the other of the boiler in going up or down hill, and thus produce in-. jury.

Thepbject of our invention is to provide a practical and efficient boiler of light and cheap construction adapted for such uses. To prevent as much as possible the crown-sheet at either end of the boiler from being exposed, owing to the unevenness of the ground, we

the highest portion of the boiler in the middle. In the accompanying drawings, which form a part of this specification, and in which similar letters of reference indicate like parts, Figure l is a central longitudinal section of a device embodying our invention; Fig. .2, a front end View; Fig. 3, a rear end view, and Figs. 4, 5, and 6 are views similar to Figs. 1,

' 2, and 3, showing a slight modification.

said crown-sheet being exposed when this end of the boiler is elevated higher than the other.

K is a flat crown-sheet over the combustionchamber D. This crown-sheet is also inclined from its inner end toward the front end of the (No model.)

boiler, as indicated in Figs. 1 and 4, so that when this end of the boiler is elevated the liability of the crown-sheet being exposed will be diminished. To give the requisite size to the flue-sheet L and space for the required number of return-fines without too much elevation of the crown-sheet K, we make the fluesheet of about the same diameter as the main shell Aof the boiler, and provide an enlarged shell part, A surrounding the combustionchamber D, and which forms the water-space between the combustion chamber and the shell.

The lower part or wall, m, of the combustionchamber may preferably be inclined upward toward its outer end, as shown in Fig. 1, to

give space for a handhole, M, at the end of the boiler. To give additional space for this hand-hole, if required, we may extend the bottom sheet, or, about horizontally with the main fine, or provide a swell or enlargement, N, in the outer shell at this point, as shown at Figs. 4 and 5.

The grate 0 may rest upon flanges or angleirons secured to the walls of the fire-box.

\Ve hereby disclaim, as forming no part of our invention, the steam-boiler shown and described in Letters Patent of the United States No. 253,385 to Huber, dated February 7,1882.

1. The combination,inaboiler,of a main flue, A, fire-box B, having its upper wall or crownsheet, H, inclined downwardly from the inner end of the fire-box toward its outer end, and combustion-chamber D, having its crown-sheet K inclined downwardly from its inner toward its outer end, substantially as specified.

2. The combination of main fine A, shell A, fire-box B, combustion-chamber D, fluesheet L, and crown-sheet K below the waterline of the boiler, said shell A having enlargement A surrounding said combustionchamber, substantially as specified.

,3. In a boiler, the combination, with a firebox, of a main flue, the combustion-chamber D, and return-fines, the outer shell of said boiler having an enlargement surrounding said combustion-chamber, and forming a waterspace between said shell and the walls of said combustion-chamber, and the upper or crown sheet of said combustion-chamber being depressed below the water-line ol' the boiler, substantially as specified.

shell A, having an enlargement, A surrounding said combustion-chambenthe bottom wall,

4. lhe combination, with a main flue of a m, of said combustion-chainber being inclined fire-box and a e0nibustion-ehamber at the end 1 upward toward its end, and a hand-hole, M,

5 of said main flue, said fire-box and combustion-chamber each having an upper or crown sheet inclined from its inner toward its outer end, substantially as specified.

5. The combination, with a fire-box, of the IO main flue, a conibustion-chamber, 1), the outer substantially as specified.

MEINRAD RUMELY. WILLIAM N. lUMELY. \Vitnesses:

JOHN HANNA, THOMAS MAoKnY.

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