US804274A

US804274A - Steam-boiler.

Info

Publication number: US804274A
Application number: US26699105A
Authority: US
Inventors: Frank Stadler
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-06-26
Filing date: 1905-06-26
Publication date: 1905-11-14
Anticipated expiration: 1922-11-14

Description

PATENTED NOV. 14, 1905.

F. STADLER.

STEAM BOILER.

APPLwATIoN FILED JUNE 2s, 1905-.

2 SHEETS-SHEET 1.

y Q I l al /A/l/E/vof? FRA N K STADLE F?.

A TTOHNEKY PATENTED NOV. 14V, 1905.

F. STADLER.

STEAM BOILER.

l APPLICATION FILED JUNE ze. 1905.

2 SHEETS-SHEET 2.

INVENTO? FRA NK .STAD LER.

By l /Jry ATTORNEYS narran sfrafrns FATENT FFICF.

.STEAM-BOILER.

Specification of Letters Patent.

Fatented Nov. 14, 1905.

Application led June 26,1905. Serial No. 266,991.

Vo1 Illinois, have invented a new and Improved Steam-Boiler, of which the following is a specification.

rIhis invention more particularly relates to that class of upright steam-boilers having horizontal tubes, and it seeks to provide certain improvements in this type of boiler whereby to provide an economical but stable construction of boiler in which the several parts are especially designed and combined so that they can be readily separated to provide for easily and expeditiously cleaning or repairing the same without the necessity of goingI inside thereof.

With the above and other objects in view, which will hereinafter appear, my invention comprehends certain improved arrangement and detailed construction of parts, all or' which will be hereinafter fully described, pointed out in the appended claims, and illustrated in the accompanying drawings, in which- Figure l is a vertical section of an upright boiler constructed in accordance with my invention. Fig. 2 is horizontal section of the same on the line 2 2 on Fig. 1. Fig. 3 is a horizontal section on the line 3 3 on Fig. l. Fig. 4 is a similar view on the line 4 4 on Fig. l. Fig. 5 is a detail perspective view of a portion of the upper connection of the boilershell, and Fig. 6 is a similar View of a portion of the lower connection of said shell. Fig. 7 is a detail viewot1 a slightly-modified form of my invention.

In the practical application of myinvention the boiler shell or casing is composed ot' two cylindrical sections A A', the lower one, A', of which is of a height sufficient to surround the lire-pot K, while the upper section incases the nest of water-tubes and extends above the same to form the upper end of the steamspace, that has the usual manhole P, as shown.

The bottom ot' the lower shell or casing section A' is securely bolted to the base or supporting member a2, and its upper end is firmly riveted to a cast-steel ring O, Whose horizontal portion c opposes a similar cast ring O', riveted to the lower end oi' the upper casing or shell A, and the said rings O C' are firmly secured steam-tight by the bolt-andnut connections D D, as shown. The bottom rim o has a vertical flange ct', located inside the shell A', which forms a support for the grate-bars G G of the fire-box, which is formed in the lower end of the line-sheet H, the lower end of which flares outwardly and is riveted to another vertical iiange a3 of the bottom rim o, as at L', and the said lower end of the flue-sheet .is further braced -by the staybolts G' G', as best shown in Fig. 8.

G2 designates the fuel-opening to the lirebox, and G3 the feedway, that opens through the outer shell and has the usual door G4.

S' S' designate the tubes, which are disposed in horizontal tiers and communicate with the water-space between theinner and outer shells or casings and which run crosswise of each other, whereby to form checkered lire-passages between them. (See Fig. 2.) The said flues are disposed in close relation and extend to a point near the upper or crown sheet H2, which has a pendent flange 7b2 riveted to the vertical sheet or tube-casing H, and the said crown-sheet has a central outlet, to which is riveted the otftake ,-pipe I, that passes up through the steam-space at the upper end of the outer shell and through the collar 7' of a cast-metal plate J, the horizontal portion of which is secured by the bolts and nuts B to another cast-steel top member M, formed with a pendent {iange m, to which the upper end of the shell or casing section A is riveted.

To firmly brace the tube-holding` and lirebox sheet or casing at the upper end, I provide a number of brace-bars N N, the lower ends of which are detachably bolted in-bifurcated blocks O O, riveted to the top or crown sheet H2 and whose upper ends are bifurcated, as at n n, to receive the pendent ears r of cast blocks R, bolted to the under side of the top member M.

While I have shown the tube sheet or casing square in horizontal section and with the corners rounded, as best shown in Fig. 3, it is manifest the same may have other shapes in plan view.

From the foregoing, taken in connection with the accompanying drawings, the complete structure and its advantages will be readily apparent. By reason of arranging the parts in the manner shown and described an economical and compact but strong boiler is provided, capable of withstanding a very high pressure, and by'forming the casing or shell of two sections and joining them in the manner shown, taking out the bolts D, removing the nuts that secured the blocks R to the top plate M and the nuts on bolts B, the entire upper section of the casing or shell can be lifted oli and the tubes exposed, so they TOO IIO

va maximum heating-surface is obtained in a minimum amount of space.

In Fig. 7 I have shown a slightly-modified form of my invention, in which rings M M2 are provided, to which the plates A and J', respectively, are riveted, as at M M2, and the rings M M2 are held together by bolts B, as shown.

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

l. A water-tube boiler comprising inner and outer shells, cross-tubes mounted in the inner shell, the outer shell being formed of two sections, means for detachably joining the said two sections, a cast rim adapted to be lirmly secured to a suitable base-support, said rim having a vertical flange to which the lower ends of vthe inner and outer shells are connected, and having a second vertical flange that forms a support for the grate-bars, a top, detachably connected to the upper end of the outer shell, and a gland for the oiTtake-iiue from the crown of the inner shell, detachably connected to the said detachable outer-shell top member.

2. In a water-tube boiler of the character described, in combination with the inner or tube shell, the lire-box and the otYtake-flue; of an outer shell, comprising a lower lixedlyheld section, an upper section detachably mounted on the lower section, a gland on the offtake-iue, and a top member secured in the upper end of the outer shell and means for detachably connecting said top member to the gland as set forth. f

3. In a tubular boiler of. the character described, the combination with the inner or tube-carrying shell, the crosswise -disposed tubes therein, the fire-pot formed in the lower end of the inner shell, and the oHtake-lue that extends up centrally from the crownsheet of the inner shell; of the outer shell, composed of an upper and a lower section, the latter being tiXedly held, means for detachably connecting the upper section on the lower section, a gland or collar that surrounds the Oiftake-iue, a top member secured on the upper end of the outer shell, means for detachably connecting said member to the collar or gland,

of the inner shell, and means for detachably connecting the upper end ot' the said braces to the under side of the top member, for the purposes described.

4. A tube-boiler consisting of inner and outer shells having water-space between them, the water-tubes comm unicating with said space and disposed in horizontal alternately -disposed tiers, the inner shell having an otakeiiue section projected from its crown and having its lower end iiared outwardly, a base-rim having two upwardly-extended flanges, the lower ends of the inner and outer shells being iXedly connected to the outer one of the said iianges, grate-bars mounted on the inner one of said flanges, the outer shell including an upper section, means for detachably securing the upper section to the lower section, a gland on the o'take-lue, a cover-plate detachably secured to said gland and permanently secured to the upper end of the outer shell, and the braces detachably connected at their lower end to the top of the crown of the inner shell and at their upper end to the under side of the cover-plate, all being arranged substantially as shown and described.

5. 1n a water-tube boiler of the character described, in combination with the inner or tube shell, a fire-box and an oftake-liue; of an outer shell, a gland on the offtake-luefrom the inner shell, a top detachably connected to the said gland and to the upper end of the said tube and brace-rods whose upper ends are detachably connected to the top of the outer shell and whose lower ends are detachably connected lto the'top of the inner shell.

FRANK STADLER.

Witnesses:

HENRY S. ABENs, W. W. WALTERS.

' braces secured to the top of the crown-sheet i