US40677A - Improvement in fusible safety-plugs - Google Patents
Improvement in fusible safety-plugs Download PDFInfo
- Publication number
- US40677A US40677A US40677DA US40677A US 40677 A US40677 A US 40677A US 40677D A US40677D A US 40677DA US 40677 A US40677 A US 40677A
- Authority
- US
- United States
- Prior art keywords
- plugs
- improvement
- fusible
- safety
- fusible safety
- 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
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 239000000956 alloy Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 6
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
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
- the safety-plugs in common use are very unreliable after having been in use for some time.
- the particles of the different metals have a galvanic action which will in time infallibly remove the more fusible metal, and when the water in contact with them is not very pure the metal thus removed is replaced by a stony deposit from the water, and the plug is worse than useless, because it lulls all suspicion of danger, and, moreover, the film of oxide which is formed upon it at first, and is commonly relied on to protect it from further corrosion, is
- the object of my invention is to obviate all these dangers; and to this end it consists in protecting a fusible safety-plug by any known process with a coating of a metal less fusible and less liable to corrode than the metal or alloy of which the body of the plug is composed, but so thin as to offer no appreciable.
- the simplest and easiest mode of applying the protecting-coating to the plug is by the galvano-plastic process, and the metalsof which it may be composed are pure copper, silver, gold, and platinum.
Description
NITED STATES PATENT OFFICE.
F. CURTIS, OF NEWBURYPORT, MASSACHUSETTS,
IMPROVEMENT IN FUSIBLE SAFETY-PLUGS.
Specification forming part of Letters Patent No. 40,677, dated November 24, 1863.
To all whom it may concern:
Be it known that I, F. CURTIS, of N ewburyport, in the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Fusible Safety Plugs for Steam-Boilers and other Apparatus; and I do hereby declare that the following is a full,
clear, and exact description of the same.
The safety-plugs in common use are very unreliable after having been in use for some time. When composed of an alloy the particles of the different metals have a galvanic action which will in time infallibly remove the more fusible metal, and when the water in contact with them is not very pure the metal thus removed is replaced by a stony deposit from the water, and the plug is worse than useless, because it lulls all suspicion of danger, and, moreover, the film of oxide which is formed upon it at first, and is commonly relied on to protect it from further corrosion, is
only proof that destruction has begun. The objection to a plug of lead or any single metal, which has been sometimes used, is that it does not melt at a sufficiently-low temperature for safety in most cases.
The object of my invention is to obviate all these dangers; and to this end it consists in protecting a fusible safety-plug by any known process with a coating of a metal less fusible and less liable to corrode than the metal or alloy of which the body of the plug is composed, but so thin as to offer no appreciable.
resistance to pressure when the metal or alloy of which the body is composed is softened or melted by heat.
The simplest and easiest mode of applying the protecting-coating to the plug is by the galvano-plastic process, and the metalsof which it may be composed are pure copper, silver, gold, and platinum.
I do not confine myself tothe use of any F. CURTIS.
Witnesses GEORGE A. UHOATE, GEo. H. STEVENS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US40677A true US40677A (en) | 1863-11-24 |
Family
ID=2110247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US40677D Expired - Lifetime US40677A (en) | Improvement in fusible safety-plugs |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US40677A (en) |
-
0
- US US40677D patent/US40677A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3308046A (en) | Galvanic action device for scuttling floating objects | |
| US2343440A (en) | Domestic water heater | |
| US40677A (en) | Improvement in fusible safety-plugs | |
| US902758A (en) | Vessel for storing and transporting milk and other liquids. | |
| US34435A (en) | Improved metal for sheathing ships | |
| US73311A (en) | Island | |
| US1017715A (en) | Fusible link. | |
| US673710A (en) | Terminal and binding-screw for electric batteries and connections. | |
| US3469074A (en) | Method of electrically heating an aqueous electrolyte | |
| US45303A (en) | Improved composition for preventing incrustation in steam-boilers | |
| US14929A (en) | Lining metal pipes with gutta-percha | |
| US750768A (en) | Sprinkler-head for automatic fire-extinguishers | |
| US52465A (en) | Improvement in putting up caustic alkali | |
| US1357347A (en) | Fusible link | |
| US25142A (en) | Improvement in percussion-pellets for fire-arms | |
| US48820A (en) | Improvement in priming metallic cartridges | |
| US8930A (en) | Improvement in lightning-rods | |
| JPS63206486A (en) | Corrosion preventive device for hot water storage tank | |
| DE2714823C3 (en) | Solder insert for electric soldering irons | |
| SU501095A1 (en) | Titanium based alloy | |
| US44880A (en) | Improvement in lightning-conductors | |
| Datta et al. | The Corrosive Degradation of Titanium in Gaseous Environments and the Associated Influence on Mechanical Properties | |
| US48536A (en) | Improvement in metallic cartridge-case | |
| US189778A (en) | Improvement in gage-glasses | |
| US358518A (en) | Binding-post |