US151777A - Improvement in steam-boilers - Google Patents
Improvement in steam-boilers Download PDFInfo
- Publication number
- US151777A US151777A US151777DA US151777A US 151777 A US151777 A US 151777A US 151777D A US151777D A US 151777DA US 151777 A US151777 A US 151777A
- Authority
- US
- United States
- Prior art keywords
- steam
- boiler
- shell
- chimney
- boilers
- 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
- 230000000717 retained Effects 0.000 description 4
- 230000000266 injurious Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000630 rising Effects 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs
Definitions
- My invention relates to steam-boilers having a steam-chimney, notably marine-boilers, but others also; and it consists in retaining the boiler-shell between the outer shell or cylinder and the inner shell of the steam-jacket, and jointing it to the latter instead of cutting it out, as heretofore done, the said retained portion being perforated to allow a free circulation of the steam between the boiler proper and the steam-chimney.
- the object of the invention is twofold, namely, to strengthen the boiler and brace the chimney.
- Figure l is a sectional elevation of so much of a boiler as is required to illustrate my invention.
- Fig. 2 is a plan view of Fig. l in verted.
- A is the boiler-shell; B, the outer shell of the steam-chimney; C, the inner shell, which, at its lower end, connects with the ordinary smoke-flue; D, the portion of the boiler-shell extending from the outer shell of the steamchimney B to the inner shell C; and E, the perforations, to allow the steam to circulate freely between the boiler and the steam-chimney.
- the steam circulates just as well through the holes as if the whole space was open.
- the weight of the steam-chimney and smoke-pipe on the boiler is not so injurious, because the boilershell is supported vertically by the inner shell of the steam-chimney, with which it is connected, so that the injuries to the joint between the chimney and the boiler-shell, by the rising and falling of the shell due to the varying conditions of internal pressure and temperature when steam is on, and external pressure and temperature when it is on", are avoided.
- the extension of' the boiler-shell beneath the steam-chimney and up to and around the inner shell thereof serves as a brace to the latter.
Description
'UNITED STATES PATENT OFFICE.
kCHARLES H. HASVVELL, OF NEV YORK, N. Y.
IMPROVEMENT IN STEAM-BOILERS.
Specification forming part of Letters Patent No. 151,777, dated June 9, 1874; application filed April 4, 1874.
CAsE B.
To all whom it may concern Be it known that I, CHARLES H. HAswELL, of the city, county, and State ot' New York, have invented a new and useful Improvement in Steam-Boilers, of which the following is a specification My invention relates to steam-boilers having a steam-chimney, notably marine-boilers, but others also; and it consists in retaining the boiler-shell between the outer shell or cylinder and the inner shell of the steam-jacket, and jointing it to the latter instead of cutting it out, as heretofore done, the said retained portion being perforated to allow a free circulation of the steam between the boiler proper and the steam-chimney. The object of the invention is twofold, namely, to strengthen the boiler and brace the chimney.
Figure l is a sectional elevation of so much of a boiler as is required to illustrate my invention. Fig. 2 is a plan view of Fig. l in verted.
Similar letters of reference indicate correspondin g parts.
A is the boiler-shell; B, the outer shell of the steam-chimney; C, the inner shell, which, at its lower end, connects with the ordinary smoke-flue; D, the portion of the boiler-shell extending from the outer shell of the steamchimney B to the inner shell C; and E, the perforations, to allow the steam to circulate freely between the boiler and the steam-chimney.
Hitherto it has been customary to remove the entire portion D of the boiler-shell, and it has been a great and entirely unnecessary cause of weakness to the boiler, for, by extending it to the inner shell C, its strength to resist rupture is preserved directly in proportion to the width of the metal retained, and
the steam circulates just as well through the holes as if the whole space was open. Besides preserving much of the strength against the internal strain Vheretofore lost, the weight of the steam-chimney and smoke-pipe on the boiler is not so injurious, because the boilershell is supported vertically by the inner shell of the steam-chimney, with which it is connected, so that the injuries to the joint between the chimney and the boiler-shell, by the rising and falling of the shell due to the varying conditions of internal pressure and temperature when steam is on, and external pressure and temperature when it is on", are avoided. Moreover, the extension of' the boiler-shell beneath the steam-chimney and up to and around the inner shell thereof serves as a brace to the latter.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- A steam-chimney having a perforated bottom formed by anextension of the boiler-shell beneath it, whereby the boiler and chimney are both strengthened, substantially as set forth.
CHAS. H. HASWELL. VVitnesses T. B. MosHER., ALEX. F. ROBERTS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US151777A true US151777A (en) | 1874-06-09 |
Family
ID=2221189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US151777D Expired - Lifetime US151777A (en) | Improvement in steam-boilers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US151777A (en) |
-
0
- US US151777D patent/US151777A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US151777A (en) | Improvement in steam-boilers | |
| US808027A (en) | Boiler-flue fastening. | |
| US138285A (en) | Improvement in wash-boilers | |
| US46171A (en) | Improvement in steam-boilers | |
| US623170A (en) | Steam-boiler | |
| US220828A (en) | Improvement in feed-steamers | |
| US107356A (en) | Improvement in tubular grates | |
| US171017A (en) | Improvement in upright tubular boilers | |
| US1226516A (en) | Hot-water drum. | |
| US889388A (en) | Return-flue boiler. | |
| US144774A (en) | Improvement in wash-boilers | |
| US201412A (en) | Improvement in sectional steam-boilers | |
| US266495A (en) | Boiler and feed-steamer | |
| US142259A (en) | Improvement in laundry-stoves | |
| US200515A (en) | Improvement in feed-cookers | |
| US847582A (en) | Hoop for washboilers and the like. | |
| US294951A (en) | Henry f | |
| US316214A (en) | Steam-boiler | |
| US977644A (en) | Washboiler. | |
| US294927A (en) | Joseph stevens | |
| US716467A (en) | Boiler. | |
| US158322A (en) | Improvement in agricultural boilers | |
| US448867A (en) | John jay tonkin | |
| US123820A (en) | Improvement in culinary-boilers | |
| US152394A (en) | Improvement in steam-radiators |