US29308A - Alarm water-cage for steam-boilers - Google Patents
Alarm water-cage for steam-boilers Download PDFInfo
- Publication number
- US29308A US29308A US29308DA US29308A US 29308 A US29308 A US 29308A US 29308D A US29308D A US 29308DA US 29308 A US29308 A US 29308A
- Authority
- US
- United States
- Prior art keywords
- steam
- float
- boilers
- valve
- water
- 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 20
- 238000010276 construction Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 230000002459 sustained Effects 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/32—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements
- G01F23/34—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using mechanically actuated indicating means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2931—Diverse fluid containing pressure systems
- Y10T137/3115—Gas pressure storage over or displacement of liquid
- Y10T137/3143—With liquid level responsive gas vent or whistle
Definitions
- A represents a hollow case of sheet or cast metal and strong enough to resist the pressure of the steam, which will act on the same.
- This case communicates by a tube a, leading from its top with. the steam space of a boiler and by a tube 6, leading from its bottom. It communicates with the ater space of the same in such a manner that the water in the interior of the case will always rise to the same height as in the boiler.
- An opening 0, in the bottom of the case A, allows of blowing 05 the contents of the same so that it can be cleaned out, and an opening (Z, in the top communicates by a suitable pipe with a steam whistle of the ordinary construction.
- the opening (Z, is closed by a valve B, which is attached to a rod C, and which together with the rod is forced up by a spring D.
- the power of this spring is just sufficient to keep the valve up, and the pressure of the steam on its under surface assists to press it up tight 011 its seat and to close the opening (Z.
- the rod 0, extends down through the center of the case A, and it forms the guide for a float E, which slides up and down, on said rod with perfect freedom, so that it rises and falls with the water in the boiler.
- the rod O is provided with a collar 6, near to its lower end and opposite to the low water mark in the boiler so that, when the water sinks below this collar, the float by resting on the same with its full weight depresses the rod and opens the valve B, thereby admitting steam to the whistle.
- the float E is furnished with a project ing flange f, at its underside, the object of which is to prevent the steam to act on the under surface of said float. Without this flange, and if the water sinks below the collar e, on the rods the steam surrounds the float from all sides, and the weight of the float alone has to overcome the force of the spring D, and the pressure of the steam acting on its under surface for the purpose of opening the valve. But with the flange the steam from above cannot get under the float even if the water sinks below the under surface of the same, and the weight of the columns of water sustained under the float assist in opening the valve. By these means the valve is thrown open as soon as the water sinks below the low water mark and the whistle is blown.
- this projecting flange can be attached to a float of any form and to every float, whether the same be rigidly attached to the valve rod or made to slide on the same as herein described.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
- Cookers (AREA)
Description
UNITED STATES PATENT OFFICE.
CHARLES T. PANGBORN, OF BROOKLYN, NEW YORK.
ALARM WATER-GAGE FOR STEAM-BOILERS.
Specification of Letters Patent No. 29,308, dated July 24, 1860.
To all whom it may concern:
Be it known that I, CHARLES T. PANGBORN, of Brooklyn, E. D., in the county of Kings and State of New York, have invented a new and Improved Alarm l/VaterGage for Steam- Boilers; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, making a part of this specification, said drawing representing a vertical central section of this invention as applied to the front of a steam-boiler.
To enable those skilled in the art to make and use my invention I will proceed to describe its construction and operation with reference to the drawing.
A, represents a hollow case of sheet or cast metal and strong enough to resist the pressure of the steam, which will act on the same. This case communicates by a tube a, leading from its top with. the steam space of a boiler and by a tube 6, leading from its bottom. It communicates with the ater space of the same in such a manner that the water in the interior of the case will always rise to the same height as in the boiler.
An opening 0, in the bottom of the case A, allows of blowing 05 the contents of the same so that it can be cleaned out, and an opening (Z, in the top communicates by a suitable pipe with a steam whistle of the ordinary construction. The opening (Z, is closed by a valve B, which is attached to a rod C, and which together with the rod is forced up by a spring D. The power of this spring is just sufficient to keep the valve up, and the pressure of the steam on its under surface assists to press it up tight 011 its seat and to close the opening (Z.
The rod 0, extends down through the center of the case A, and it forms the guide for a float E, which slides up and down, on said rod with perfect freedom, so that it rises and falls with the water in the boiler. The rod O, is provided with a collar 6, near to its lower end and opposite to the low water mark in the boiler so that, when the water sinks below this collar, the float by resting on the same with its full weight depresses the rod and opens the valve B, thereby admitting steam to the whistle.
The float E, is furnished with a project ing flange f, at its underside, the object of which is to prevent the steam to act on the under surface of said float. Without this flange, and if the water sinks below the collar e, on the rods the steam surrounds the float from all sides, and the weight of the float alone has to overcome the force of the spring D, and the pressure of the steam acting on its under surface for the purpose of opening the valve. But with the flange the steam from above cannot get under the float even if the water sinks below the under surface of the same, and the weight of the columns of water sustained under the float assist in opening the valve. By these means the valve is thrown open as soon as the water sinks below the low water mark and the whistle is blown.
It is obvious that this projecting flange can be attached to a float of any form and to every float, whether the same be rigidly attached to the valve rod or made to slide on the same as herein described. By making the float to slide on the rod I gain the greatadvantage, that the position of the valve is notaffected by the oscillation of the water in the boiler as the float is thereby allowed to move up and down independent from and without influence on the valve.
Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is
The arrangement of the flange at the bottom of the float E, which slides up and down on the stationary valve rod 0, and which operates in combination with the valve B, spring D, and disk 0, substantially as and for the purpose set forth.
CHARLES T. PANGBORN.
Witnesses:
B. Gnzouxn, M. M. LIVINGSTON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US29308A true US29308A (en) | 1860-07-24 |
Family
ID=2098965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US29308D Expired - Lifetime US29308A (en) | Alarm water-cage for steam-boilers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US29308A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4660613A (en) * | 1985-12-26 | 1987-04-28 | Robert Dagenais | Folding closure assembly |
| US4887659A (en) * | 1988-07-07 | 1989-12-19 | Frommelt Industries, Inc. | High speed folding door |
| US5220951A (en) * | 1991-10-24 | 1993-06-22 | Robert Dagenais | Hinge construction for a folding closure assembly |
-
0
- US US29308D patent/US29308A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4660613A (en) * | 1985-12-26 | 1987-04-28 | Robert Dagenais | Folding closure assembly |
| US4887659A (en) * | 1988-07-07 | 1989-12-19 | Frommelt Industries, Inc. | High speed folding door |
| US5220951A (en) * | 1991-10-24 | 1993-06-22 | Robert Dagenais | Hinge construction for a folding closure assembly |
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