US114216A - Improvement in low-water alarms - Google Patents
Improvement in low-water alarms Download PDFInfo
- Publication number
- US114216A US114216A US114216DA US114216A US 114216 A US114216 A US 114216A US 114216D A US114216D A US 114216DA US 114216 A US114216 A US 114216A
- Authority
- US
- United States
- Prior art keywords
- low
- improvement
- water
- boiler
- plug
- 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 title description 8
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/42—Applications, arrangements or dispositions of alarm or automatic safety devices
- F22B37/47—Applications, arrangements or dispositions of alarm or automatic safety devices responsive to abnormal temperature, e.g. actuated by fusible plugs
- F22B37/475—Safety devices with fusible plugs
Definitions
- My invention consists of the combination, substantially as described hereafter, of a fusible plug applied to a steam-boiler; a weighted rod adapted to the said plug, and a steam-whistle or other alarm; the whole being so arranged that when the water becomes dangerously low the plug will be melted by the heat of the steam and the alarm will be given by the falling of the weighted rod.
- the plug consists of an alloy which will melt when exposed to the heat of steam, but will remain rigid as long as it is exposed to the less intense heat of the water in the boiler.
- the fusible plug is fitted into a tube, 1?, screwed into the boiler, the tube being closed at its inner end; but I do not desire to restrict myself to this arrangement, as the fusible plug may be driven directly into the boiler.
- a whistle should be used as a medium for giving the alarm, as a bell or gong might be struck by thed'alling of the weighted rod.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Eye Examination Apparatus (AREA)
Description
JOHN STANTON. Improvement in Low-Water'Alarms.
Patented April 25,1871.
fidniidr fields JOHN STANTON, OF PHILADELPHIA, PENNSYLVANIA.
Letters Patent No. 114,216, dated April 25, 1871.
IMPROVEMENT IN LOW-WATER ALARMS.
The Schedule referred to in these Letters Patent and making part of the same.
I, Jenn STANTON, of Philadelphia, Pennsylvania,
have invented an Improved Low-Water Alarm, of
which the following is a specifioation.
Nature and Objectof the Invention.
\ My invention consists of the combination, substantially as described hereafter, of a fusible plug applied to a steam-boiler; a weighted rod adapted to the said plug, and a steam-whistle or other alarm; the whole being so arranged that when the water becomes dangerously low the plug will be melted by the heat of the steam and the alarm will be given by the falling of the weighted rod.
Description of the Aeeompcmymg Drawing. The figure in the accompanying drawing represents in section sufiicient of a boiler and appliances to illustrate my improvement.
General Description.
1, which is inserted into the front of the boiler at a point below whieh it would be dangerous to permit the water to fall.
The plug consists of an alloy which will melt when exposed to the heat of steam, but will remain rigid as long as it is exposed to the less intense heat of the water in the boiler.
In the present instance the fusible plug is fitted into a tube, 1?, screwed into the boiler, the tube being closed at its inner end; but I do not desire to restrict myself to this arrangement, as the fusible plug may be driven directly into the boiler.
,As long as the water remainsabove the plug the latter will serve to retain the weighted arm L in the position shown in the drawing, the'valve of the whistle being consequently-closed; but should the water become so low that the fusible plug is exposed to the action of the steam, it will melt and cease to-support the weighted arm L, which, suddenly falling, will depress the lever L and open the valve of the whistle, thereby giving an alarm to indicate the dangerous position of the boiler.
It is not essential that a whistle should be used as a medium for giving the alarm, as a bell or gong might be struck by thed'alling of the weighted rod.
0' laim.
Witnesses:
LIONEL J. .DEPINEUIL, J OSIIUA Davis.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US114216A true US114216A (en) | 1871-04-25 |
Family
ID=2183679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US114216D Expired - Lifetime US114216A (en) | Improvement in low-water alarms |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US114216A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2712295A (en) * | 1955-07-05 | haynes |
-
0
- US US114216D patent/US114216A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2712295A (en) * | 1955-07-05 | haynes |
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