US167004A - Improvement in crown-bars for steam-boilers - Google Patents
Improvement in crown-bars for steam-boilers Download PDFInfo
- Publication number
- US167004A US167004A US167004DA US167004A US 167004 A US167004 A US 167004A US 167004D A US167004D A US 167004DA US 167004 A US167004 A US 167004A
- Authority
- US
- United States
- Prior art keywords
- crown
- bars
- boilers
- steam
- bar
- 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
- 230000003137 locomotive Effects 0.000 description 2
- 229920003245 polyoctenamer Polymers 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005406 washing Methods 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
- A represents the crownsheet of a locomotive boiler-furnace, B.
- the crown-bar O is made of two parallel parts or bars, 0 O, which extend (in practice) entirely across the top of the crown-sheet, and are bent down at the end, and secured to the side of the furnace-wall by means of bolts or rivets, as shown.
- the lower ends pass through the crown-sheet, and are riveted at I, in the usual Way.
- the lock-bar G which is applied to the under side of the crown-bar by the bolts .13, which screw through it, and by its end lugs an ab which enter the space between the bars 0
- the lock-bar aids in preserving the parallelism of the bars 0 O, and strengthens and braces the same to such an extent as enables them to be made thinner and lighter than heretofore.
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)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Description
I. M-cPHAlL.
Grown Bars for Steam Boilers 1 Patented Aug. 24,1875.
TOR
o-umocmwum, WASHING WITNESSES; AM
ATTORNE S. I
' OFFICE,
JAMES MGPHAIL, OF ELLIS, KANSAS.
IMPROVEMENT IN CROWN-BARS FOR STEAM-BOILERS.
Specification forming part of Letters Patent No. 167,004, dated August 24, 1875; application filed March 1, 1875.
To all whom it may concern:
Be it known that I, JAMES MCPHAIL, of Ellis, in the county of Ellis and State of Kan.-
sas, have invented a new and useful Improvev ends, in connection with a crown-bar composed of two parallel parts or sections, as
hereinafter fully described.
In the drawing, A represents the crownsheet of a locomotive boiler-furnace, B. The crown-bar O is made of two parallel parts or bars, 0 O, which extend (in practice) entirely across the top of the crown-sheet, and are bent down at the end, and secured to the side of the furnace-wall by means of bolts or rivets, as shown. A narrow space intervenes between the crown-sheet and crown-bar, and the former is supported from the latter by means of bolts 1), having heads F resting on cross or tie plates E, and passing down between the bars 0 G, as shown. The lower ends pass through the crown-sheet, and are riveted at I, in the usual Way.
This general arrangement of bolts and crown-bar has been previously adopted. The
novel feature of the combination shown is, therefore, the lock-bar G, which is applied to the under side of the crown-bar by the bolts .13, which screw through it, and by its end lugs an ab which enter the space between the bars 0 The lock-bar aids in preserving the parallelism of the bars 0 O, and strengthens and braces the same to such an extent as enables them to be made thinner and lighter than heretofore. It also prevents the bolts being thrown out of vertical parallelism with the bars 0 G by reason of the warping, bulging, or other distortion of the crown-sheet, which, owing to various causes, is an event of common occurrence, and tends to break the thread on the screw-bolts where they pass through the solid bridge-pieces at the top of the crownbar. The use of the lock-bar likewise obviates the necessity of threading the bolts their entire length, as in the case where they screw through said bridge-pieces, and it is a useful adjunct in the finishing operation of riveting the ends I.-
What I therefore claim is-- The detachable lock-bar G, having end lugs a a, in combination with the crown-sheet A, the crown-bar formed of the separate parts or sections 0 G, the bolts D D, and the tie-plates E E, as shown and described, for the purpose specified.
JAMES MGPHAIL.
Witnesses J NO. H. EAMES, S. K. HAMILTON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US167004A true US167004A (en) | 1875-08-24 |
Family
ID=2236413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US167004D Expired - Lifetime US167004A (en) | Improvement in crown-bars for steam-boilers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US167004A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070006626A1 (en) * | 2004-03-11 | 2007-01-11 | Tomio Yamakawa | Seamless tube piercing/rolling plug, seamless tube piercing/rolling apparatus, and seamless tube producing method therewith |
-
0
- US US167004D patent/US167004A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070006626A1 (en) * | 2004-03-11 | 2007-01-11 | Tomio Yamakawa | Seamless tube piercing/rolling plug, seamless tube piercing/rolling apparatus, and seamless tube producing method therewith |
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