US116836A - Improvement in locomotive-boilers - Google Patents
Improvement in locomotive-boilers Download PDFInfo
- Publication number
- US116836A US116836A US116836DA US116836A US 116836 A US116836 A US 116836A US 116836D A US116836D A US 116836DA US 116836 A US116836 A US 116836A
- Authority
- US
- United States
- Prior art keywords
- crown
- bars
- boilers
- shell
- locomotive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000003137 locomotive Effects 0.000 description 4
- 230000000284 resting Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B9/00—Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body
- F22B9/10—Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body the boiler body being disposed substantially horizontally, e.g. at the side of the combustion chamber
- F22B9/12—Steam boilers of fire-tube type, i.e. the flue gas from a combustion chamber outside the boiler body flowing through tubes built-in in the boiler body the boiler body being disposed substantially horizontally, e.g. at the side of the combustion chamber the fire tubes being in substantially horizontal arrangement
Definitions
- rlhis invention relates to an improved method of putting in the crown-bars employed in locomotive and other boilers for staying the crownsheet.
- the invention is also applicable to stationary or portable or marine boilers when constructed with an inside furnace requiring crownbars.
- the said improvement consists in extending the crown-bars across the boiler to the outside sheets of the shell, and supporting each end of them on a bar or angle-plate bolted or riveted to the shell, and also bolting the shell to the ends of the crown-bar.
- the rods may be used extending across from side to side ofthe shell above or between the crown-bars.
- Figure l is a longitudinal sectional elevation of' a locomotive-boiler arranged according to our improvements.
- Fig. 2 is a transverse sectional elevation.
- A is the shell of the boiler; B, the crownsheet; and D, the crown-bars, which are employed to stay the crown-sheet by means of the bolts E.
- a large portion of the crown-sheet is covered by the ends ofthe crownibars and the washers, which materially affect the life ofthe sheet.
- the circulation of the water is also impeded by the ends of the crown-bars and the washers around the crown-bolt.
- the scale formed in the braces falls on the crown-sheet, and, with that deposited thereon by the water, increases the liability of the sheetto fail.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatment Of Articles (AREA)
Description
UNITED STATES PATENT OFFICE.
SAMUEL J. HAYES AND EDWARD T. JEFFERY, OF CHICAGO, ILLINOIS.
IMPROVEMENT IN LOCOMOTIVE-BOILERS.
Specification forming part of Letters Patent No. 116,836, dated July 1l, 1871.
To all whom it may concern:
Be it known that we, SAMUEL J. HAYES and EDWARD T. J EFFERY, of Chicago,in the county of (look and State of Illinois, have invented a new and useful Improvement in Locomotive and other Boilers; and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing' forming part of this specification.
rlhis invention relates to an improved method of putting in the crown-bars employed in locomotive and other boilers for staying the crownsheet. The invention is also applicable to stationary or portable or marine boilers when constructed with an inside furnace requiring crownbars. The said improvement consists in extending the crown-bars across the boiler to the outside sheets of the shell, and supporting each end of them on a bar or angle-plate bolted or riveted to the shell, and also bolting the shell to the ends of the crown-bar. When necessary, the rods may be used extending across from side to side ofthe shell above or between the crown-bars.
Figure l is a longitudinal sectional elevation of' a locomotive-boiler arranged according to our improvements. Fig. 2 is a transverse sectional elevation.
Similar letters of reference indicate corresponding parts.
A is the shell of the boiler; B, the crownsheet; and D, the crown-bars, which are employed to stay the crown-sheet by means of the bolts E. We propose to rest the ends of these crown-bars on the angle-bars F, bolted or riveted to the sides of the boiler-shell, as shown, and we apply the bolts G to the ends ofthe said bars for bolting the shell iirmly to them. In some cases we may also use the stay-bolts I, but ordinarily they will not be needed when the bolts are used. The Y furnaces ofthe boilers as now constructed, with the crown-bars resting on the corners, sustain on their sides a the pressure on the crown-sheet, except where relieved by braces extending from the crown-sheet to the shell, and Washers are placed around the crown-bolts. A large portion of the crown-sheet is covered by the ends ofthe crownibars and the washers, which materially affect the life ofthe sheet. The circulation of the water is also impeded by the ends of the crown-bars and the washers around the crown-bolt. The scale formed in the braces falls on the crown-sheet, and, with that deposited thereon by the water, increases the liability of the sheetto fail.
By our method the furnace is relieved of a large portion of the pressure on the crown-sheet. No washers are necessary around the crown-bolts, and the ends of the crown-bars do not rest upon the corners of the furnace, so that almost all the crown-sheet is exposed to the water, which also has a greater freedom of circulation, owing to the absence of the washers. Fewer braces are necessary in the boiler over the furnace, which cheapens the cost of construction and lessens the de posit of sca-le on the crown-sheet.
Having thus described our invention, we claim as new and desire to secure by Letters Patent- The crown-bars, extended over the furnace to the sides of the boiler-shell and resting upon bars of angle or other iron, F, bolted or riveted to the shell, the ends of the said bars and the shell of the boiler bein g bolted together, all substantially as specified.
SAML. J. HAYES. EDVARD T. JEFFERY.
Witnesses GEO. HoLToN, WILLIAM H. PURDY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US116836A true US116836A (en) | 1871-07-11 |
Family
ID=2186293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US116836D Expired - Lifetime US116836A (en) | Improvement in locomotive-boilers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US116836A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060115968A1 (en) * | 2002-12-23 | 2006-06-01 | Klaus Funk | Method and apparatus for thermally treating disk-shaped substrates |
-
0
- US US116836D patent/US116836A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060115968A1 (en) * | 2002-12-23 | 2006-06-01 | Klaus Funk | Method and apparatus for thermally treating disk-shaped substrates |
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