US1671469A - Electric resistance - Google Patents
Electric resistance Download PDFInfo
- Publication number
- US1671469A US1671469A US19738A US1973825A US1671469A US 1671469 A US1671469 A US 1671469A US 19738 A US19738 A US 19738A US 1973825 A US1973825 A US 1973825A US 1671469 A US1671469 A US 1671469A
- Authority
- US
- United States
- Prior art keywords
- layer
- silver
- chromium nickel
- coating
- electric resistance
- 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
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 16
- 239000010410 layer Substances 0.000 description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 13
- 229910052709 silver Inorganic materials 0.000 description 13
- 239000004332 silver Substances 0.000 description 13
- 238000000576 coating method Methods 0.000 description 10
- 229910000990 Ni alloy Inorganic materials 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
- H01C1/148—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors the terminals embracing or surrounding the resistive element
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9265—Special properties
- Y10S428/929—Electrical contact feature
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12611—Oxide-containing component
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12736—Al-base component
- Y10T428/1275—Next to Group VIII or IB metal-base component
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12896—Ag-base component
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12944—Ni-base component
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12986—Adjacent functionally defined components
Definitions
- My invention relates to improvements in electric resistances.
- resistor rods constructed of resistance materials, particularly silit or similar materials it is particularly difficult to produce a satisfactory current-carrying connection which is capable of withstanding very high temperatures and ery abrupt temperature fluctuations.
- the ends of such resistors up on which the terminals are provided have for this purpose been made of greater thickness and they have also been provided with coats of silver, aluminum. copper and the like which may be applied by the metal atomizing process.
- a coat of chromium nickel has proved particularly advantageous for the production of good contact places.
- the chromium nickel may. for instance, have the composition of the chromium nickel wires at present on the market and as used for incandescent wires. Wires of this kind usually contain from 20 to 35% chromium.
- This alloy is preferably also applied by the atomizing process. Above all it possesses a very high fuse point and is highly impervious to oxygen and other chemical influences.
- the chromium nickel furthermore combines readily with the surface of the silit.
- alayer of silver is preferably applied to the resistance material before the chromium nickel is deposited upon it.
- the application of the silver may be effected by any suitable process, for instance by a chemical or electro-chemical process or also by the atomizing process.
- A represents in these figures the electric resistor rod roper which may consist, for instance, of silit.
- the coatings consist of a layer of silver B in immediate contact with the resistor rod A.
- superposed thereon is the layer C consisting of a chromium nickel alloy, and upon this alloy layer is placed a thin protective layer D of aluminum.
- a coat of silver may. be applied to the chromium nickel.
- What I claim as my invention is 1.
- an electric resistor consisting of a res stance material and having contact terminals. a coating of a chromium nickel alloy at said contact terminals.
- an electric resistor consisting of a resistance material and having contact terminals, a layer of silver upon said contact terminals and a coating of a chromium nickel alloy upon said layer of silver.
- An electric resistor consisting of silit. and having a coating of a chromium nickel alloy at its contact terminals.
- An electric resistor consisting of silit. and having a layer of silver upon its contact terminals and a coating of a chromium nickel alloy upon said layer of silver.
- An electric resistor consisting of silit. and having a layer of silver upon its contact terminals. a coating of a. chromium nickel alloy upon said layer of silver and a layer of aluminum upon said coating of chromium nickel alloy.
Description
ELECTRIC RESISTANCE Filed March 51, 1925 Patented May 29, 1928.
UNITED STATES PATENT OFFICE.
GEORG EGIJY, OF BERLIN-TREPTOW, GERMANY, ASSIGNOR TO GEIBR'O'DER SIEMENS & 00., OF ZBERLIN-LICHTENBERG, GERMANY, A CORPORATION OF GERMANY.
ELECTRIC RESISTANCE.
Application filed March 31, 1925, Serial No. 19,738, and in Germany May 12, 1924.
My invention relates to improvements in electric resistances.
In resistor rods constructed of resistance materials, particularly silit or similar materials, it is particularly difficult to produce a satisfactory current-carrying connection which is capable of withstanding very high temperatures and ery abrupt temperature fluctuations. The ends of such resistors up on which the terminals are provided have for this purpose been made of greater thickness and they have also been provided with coats of silver, aluminum. copper and the like which may be applied by the metal atomizing process. A coat of chromium nickel has proved particularly advantageous for the production of good contact places. The chromium nickel may. for instance, have the composition of the chromium nickel wires at present on the market and as used for incandescent wires. Wires of this kind usually contain from 20 to 35% chromium. This alloy is preferably also applied by the atomizing process. Above all it possesses a very high fuse point and is highly impervious to oxygen and other chemical influences. The chromium nickel furthermore combines readily with the surface of the silit.
In order to attain a particularly good binding efi'ect and maintain good adhesion even in the event of sudden temperature changes and similar stresses alayer of silver is preferably applied to the resistance material before the chromium nickel is deposited upon it. The application of the silver may be effected by any suitable process, for instance by a chemical or electro-chemical process or also by the atomizing process.
In many cases it is advisable to provide a protective layer of aluminum above the chromium nickel layer. The aluminum has a relatively low fuse point but it burns with great difiioulty because when heated it forms a fine layer of oxide which protects the material underneath against further attacks by the air and is yet not heavy enough to interfere with the electric contact.
In the accompanying drawings I have illustrated a resistor rod provided with coated terminals as described hereinbefore, Fig. 1
illustrating the rod in full view, and Fi 2 illustrating a transverse section on the ine 22 in Fig. 1. A represents in these figures the electric resistor rod roper which may consist, for instance, of silit. The terminal coatings of the materials described, it must be understood, are exaggerated in thickness in the drawings. The coatings consist of a layer of silver B in immediate contact with the resistor rod A. Superposed thereon is the layer C consisting of a chromium nickel alloy, and upon this alloy layer is placed a thin protective layer D of aluminum. By means of the clamp E a reliable circuit connection is made for the rod.
Instead of the aluminum coat a coat of silver may. be applied to the chromium nickel.
What I claim as my invention is 1. In an electric resistor consisting of a res stance material and having contact terminals. a coating of a chromium nickel alloy at said contact terminals.
2. In an electric resistor consisting of a resistance material and having contact terminals, a layer of silver upon said contact terminals and a coating of a chromium nickel alloy upon said layer of silver.
3. In an electric resistor consisting of a resistance material and having contact terminals, a layer of silver upon said contact terminalsya coating of a chromium nickel alloy upon said layer of silver and a layer of aluminium upon said coating of chromium nickel alloy.
4. An electric resistor consisting of silit. and having a coating of a chromium nickel alloy at its contact terminals.
5. An electric resistor consisting of silit. and having a layer of silver upon its contact terminals and a coating of a chromium nickel alloy upon said layer of silver.
6. An electric resistor consisting of silit. and having a layer of silver upon its contact terminals. a coating of a. chromium nickel alloy upon said layer of silver and a layer of aluminum upon said coating of chromium nickel alloy.
In testimony whereof I afiix my signature.
GEORG EGLY.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1671469X | 1924-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1671469A true US1671469A (en) | 1928-05-29 |
Family
ID=7738890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US19738A Expired - Lifetime US1671469A (en) | 1924-05-12 | 1925-03-31 | Electric resistance |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1671469A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2546142A (en) * | 1950-03-30 | 1951-03-27 | Norton Co | Electrical heating rod and method of making same |
| US2623145A (en) * | 1946-03-22 | 1952-12-23 | David T Siegel | Resistor structure and method of manufacture |
| US3271721A (en) * | 1956-05-10 | 1966-09-06 | Beckman Instruments Inc | Rectilinear potentiometer |
| US4050053A (en) * | 1976-04-22 | 1977-09-20 | North American Philips Corporation | Resistor end terminations |
-
1925
- 1925-03-31 US US19738A patent/US1671469A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2623145A (en) * | 1946-03-22 | 1952-12-23 | David T Siegel | Resistor structure and method of manufacture |
| US2546142A (en) * | 1950-03-30 | 1951-03-27 | Norton Co | Electrical heating rod and method of making same |
| US3271721A (en) * | 1956-05-10 | 1966-09-06 | Beckman Instruments Inc | Rectilinear potentiometer |
| US4050053A (en) * | 1976-04-22 | 1977-09-20 | North American Philips Corporation | Resistor end terminations |
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