US1970407A - Pyrometer lamp - Google Patents
Pyrometer lamp Download PDFInfo
- Publication number
- US1970407A US1970407A US499743A US49974330A US1970407A US 1970407 A US1970407 A US 1970407A US 499743 A US499743 A US 499743A US 49974330 A US49974330 A US 49974330A US 1970407 A US1970407 A US 1970407A
- Authority
- US
- United States
- Prior art keywords
- filament
- bulb
- lamp
- pyrometer
- line
- 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
- 239000003550 marker Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- AJIPIJNNOJSSQC-NYLIRDPKSA-N estetrol Chemical compound OC1=CC=C2[C@H]3CC[C@](C)([C@H]([C@H](O)[C@@H]4O)O)[C@@H]4[C@@H]3CCC2=C1 AJIPIJNNOJSSQC-NYLIRDPKSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 108010039224 Amidophosphoribosyltransferase Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/52—Radiation pyrometry, e.g. infrared or optical thermometry using comparison with reference sources, e.g. disappearing-filament pyrometer
- G01J5/53—Reference sources, e.g. standard lamps; Black bodies
Definitions
- My invention relates to so-called pyrometer lamps which areelectric lamps calibrated so that the brightness of the light source, ordinarily a glowing filament, is an indication of temperature and the brightness of a glowing object may be compared therewith to measure the temperature of the latter.
- I provide in combination with the light source, specifically the filament of such a lamp, a marker disposed adjacent to or substantially in the same plane as the filament and preferably in line with that portion of the filament which it is desired particularly to observe. Ordinarily this would be the central portion of the filament inasmuch as this is less subject to cooling by the lead wires and is therefore of greatest brightness.
- An eyelet is the preferred marker although other forms may be used.
- the object is to cause the observer to focus his eyes on the filament, and the background which is the glowing object, the temperature of which is to be measured, is out of focus and an average brightness is observed and compared with that of the filament. In the absence of the marker, the observer might well focus on the object rather than the filament.
- the single figure of the drawing is a perspective view of the pyrometer lamp of my invention of which a portion of the glass bulb has been broken away to show the interior.
- the lamp shown therein comprises the bulb 10 which is coated except for the circular areas 11 and 12 by an opaque material, the stem 13, the eyelet 14 preferably of metal such as nickel, and the relatively short filament 15.
- the material covering the bulb was applied by dipping said bulb into a material such as Goodrich acid seal rubber paint #1011, and then removingthe paint from areas 11 and-12 after the. paint has been allowed to harden. The location of these cleared areas should be such that a line passing through their centers is perpendicular to the plane of the filament and passes through the center thereof.
- the filament 15 is preferably of carbon and is connected by Joints of suitable paste to the leading-in wires 16 and 17 which are connected to the shell 18 and the contact plate 19 respectively of the base.
- Theeyelet 14 is so located with reference to the filament that the operator who sights through one cleared area and out the other to match the brightness of the filament to the What I claim as new and desire to secure by Letters Patent of the United States is:
- a pyrometer lamp comprising a bulb opaque except for small clear areas on opposite sides so of said bulb, a filament in said bulb extending across ,a line connecting said clear areas and a marker adjacent said filament and also in said.
- a pyrometer lamp the combination of a bulb having defined thereon an optical line of vision through said bulb, a filament in said bulb extending across said line and a separate marker 7 located substantially in the same plane as said filament and also in said line.
- a pyrometer lamp the combination of a bulb having defined thereon an optical line of vision through said bulb, a filament in said bulb extending across said line and a separate marker consisting of a small eyelet mounted adjacent said filament and also in said line.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Aug. 14, 1934. E M AT N 1,970,407
PYROMETER LAMP Filed Dec. '3, 1950 [N YEN TUR ESTELL MI MZTEUN,
.575 .242" TUE NE 2.
Patented Aug. 14, 1934 PATENT OFFICE PYROMETER LAMP Estell M. Watson, East Cleveland, Ohio, assignor to General Electric Company, a corporation of New York Application December 3, 1930, Serial No. 499,743
3 Claims.
My invention relates to so-called pyrometer lamps which areelectric lamps calibrated so that the brightness of the light source, ordinarily a glowing filament, is an indication of temperature and the brightness of a glowing object may be compared therewith to measure the temperature of the latter. According to my invention, I provide in combination with the light source, specifically the filament of such a lamp, a marker disposed adjacent to or substantially in the same plane as the filament and preferably in line with that portion of the filament which it is desired particularly to observe. Ordinarily this would be the central portion of the filament inasmuch as this is less subject to cooling by the lead wires and is therefore of greatest brightness. An eyelet is the preferred marker although other forms may be used. The object is to cause the observer to focus his eyes on the filament, and the background which is the glowing object, the temperature of which is to be measured, is out of focus and an average brightness is observed and compared with that of the filament. In the absence of the marker, the observer might well focus on the object rather than the filament.
The single figure of the drawing is a perspective view of the pyrometer lamp of my invention of which a portion of the glass bulb has been broken away to show the interior.
The lamp shown therein comprises the bulb 10 which is coated except for the circular areas 11 and 12 by an opaque material, the stem 13, the eyelet 14 preferably of metal such as nickel, and the relatively short filament 15. The material covering the bulb was applied by dipping said bulb into a material such as Goodrich acid seal rubber paint #1011, and then removingthe paint from areas 11 and-12 after the. paint has been allowed to harden. The location of these cleared areas should be such that a line passing through their centers is perpendicular to the plane of the filament and passes through the center thereof. The filament 15 is preferably of carbon and is connected by Joints of suitable paste to the leading-in wires 16 and 17 which are connected to the shell 18 and the contact plate 19 respectively of the base.
Theeyelet 14 is so located with reference to the filament that the operator who sights through one cleared area and out the other to match the brightness of the filament to the What I claim as new and desire to secure by Letters Patent of the United States is:
1. A pyrometer lamp comprising a bulb opaque except for small clear areas on opposite sides so of said bulb, a filament in said bulb extending across ,a line connecting said clear areas and a marker adjacent said filament and also in said.
line.
2. In a pyrometer lamp, the combination of a bulb having defined thereon an optical line of vision through said bulb, a filament in said bulb extending across said line and a separate marker 7 located substantially in the same plane as said filament and also in said line.
3. In a pyrometer lamp, the combination of a bulb having defined thereon an optical line of vision through said bulb, a filament in said bulb extending across said line and a separate marker consisting of a small eyelet mounted adjacent said filament and also in said line.
ESTELL M. WATSON.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US499743A US1970407A (en) | 1930-12-03 | 1930-12-03 | Pyrometer lamp |
| FR718558D FR718558A (en) | 1930-12-03 | 1931-06-12 | Pyrometric lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US499743A US1970407A (en) | 1930-12-03 | 1930-12-03 | Pyrometer lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1970407A true US1970407A (en) | 1934-08-14 |
Family
ID=23986510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US499743A Expired - Lifetime US1970407A (en) | 1930-12-03 | 1930-12-03 | Pyrometer lamp |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1970407A (en) |
| FR (1) | FR718558A (en) |
-
1930
- 1930-12-03 US US499743A patent/US1970407A/en not_active Expired - Lifetime
-
1931
- 1931-06-12 FR FR718558D patent/FR718558A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR718558A (en) | 1932-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US1970407A (en) | Pyrometer lamp | |
| US1765242A (en) | Lamp bulb | |
| FR747667A (en) | Composite glass intended for the manufacture of lamps | |
| US1830484A (en) | Sighting mark for refractors or the like | |
| GB501956A (en) | Incandescent electric lamp | |
| US1879442A (en) | Refractor | |
| US1305514A (en) | berry | |
| GB400263A (en) | Improvements in and relating to cut-outs for series connected electric lamps or the like | |
| US2041583A (en) | Electric incandescent lamp for projecting purposes | |
| CA298963A (en) | Metallic filament for electric incandescent lamps | |
| CA326703A (en) | Electric incandescent lamp | |
| CA320105A (en) | Electric incandescent lamp | |
| FR748964A (en) | Glowing filament candle | |
| AU2477535A (en) | Base foran incandescent electric lamp | |
| CA321328A (en) | Light high resistance alloy | |
| FR788946A (en) | Improvements to incandescent electric lamps fitted with safety fuses | |
| GB375575A (en) | Improvements in or relating to optical pyrometers | |
| FR723206A (en) | Test socket for incandescent electric lamps | |
| CA350965A (en) | Electrical incandescent lamp | |
| CA326490A (en) | Electric lamp frosting method | |
| CA310901A (en) | Apparatus for manufacturing electric light bulbs | |
| GB346145A (en) | Improvements relating to electric couplings of the lamp-holder type | |
| GB337839A (en) | Anti-dazzle devices for artificial lights | |
| CA350076A (en) | Electric incandescent lamp | |
| CA353245A (en) | Incandescent electric lamp |