NL78452C - - Google Patents
Info
- Publication number
- NL78452C NL78452C NL78452DA NL78452C NL 78452 C NL78452 C NL 78452C NL 78452D A NL78452D A NL 78452DA NL 78452 C NL78452 C NL 78452C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/56—Contact spring sets
- H01H50/58—Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49105—Switch making
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Contacts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB31544/49A GB728891A (en) | 1949-12-08 | 1949-12-08 | Improvements in and relating to electric contact making devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL78452C true NL78452C (it) |
Family
ID=10324700
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL78452D NL78452C (it) | 1949-12-08 | ||
| NL7313476.A NL157717B (nl) | 1949-12-08 | Inrichting voor het teweegbrengen van een gasdruksignaal te gebruiken voor het calibreren en beproeven van op drukveranderingen reagerende apparatuur. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7313476.A NL157717B (nl) | 1949-12-08 | Inrichting voor het teweegbrengen van een gasdruksignaal te gebruiken voor het calibreren en beproeven van op drukveranderingen reagerende apparatuur. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2630500A (it) |
| BE (1) | BE499871A (it) |
| GB (1) | GB728891A (it) |
| NL (2) | NL157717B (it) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2810040A (en) * | 1953-08-24 | 1957-10-15 | Telephone Mfg Co Ltd | Electric switches |
| BE531359A (it) * | 1953-08-24 | |||
| US2762866A (en) * | 1954-08-30 | 1956-09-11 | Automatic Elect Lab | Multi-position relays |
| GB786959A (en) * | 1954-09-07 | 1957-11-27 | Telephone Mfg Co Ltd | Improvements in and relating to electromagnetic relays and to apparatus incorporating such relays |
| DE962099C (de) * | 1954-09-09 | 1957-04-18 | Ericsson Telefon Ab L M | Kontaktfeder-Anordnung bei elektromagnetischem Relais |
| DE1027253B (de) * | 1955-09-06 | 1958-04-03 | Siemens Ag | Verhindern des Kontaktprellens beim Anzug von Flachrelais |
| US3024610A (en) * | 1956-04-26 | 1962-03-13 | Monarch Machine Tool Co | Electrical control system |
| US2907983A (en) * | 1956-06-19 | 1959-10-06 | Leich Electric Co | Mechanical counting relay |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2086136A (en) * | 1933-10-18 | 1937-07-06 | Bell Telephone Labor Inc | Method of manufacturing switches |
| US2348088A (en) * | 1940-11-20 | 1944-05-02 | Ibm | Detachable relay |
| US2385858A (en) * | 1943-06-11 | 1945-10-02 | Smaller War Plants Corp | Relay |
| US2444026A (en) * | 1943-07-24 | 1948-06-29 | Western Electric Co | Method of making selective switch banks |
| US2390344A (en) * | 1944-03-01 | 1945-12-04 | Gen Electric | Electric switch |
| US2500413A (en) * | 1945-11-26 | 1950-03-14 | Clare & Co C P | Gang relay switch arrangement |
| US2523360A (en) * | 1947-04-25 | 1950-09-26 | Bell Telephone Labor Inc | Electromagnetic relay |
-
0
- BE BE499871D patent/BE499871A/xx unknown
- NL NL78452D patent/NL78452C/xx active
- NL NL7313476.A patent/NL157717B/xx unknown
-
1949
- 1949-12-08 GB GB31544/49A patent/GB728891A/en not_active Expired
-
1950
- 1950-11-29 US US198061A patent/US2630500A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE499871A (it) | |
| GB728891A (en) | 1955-04-27 |
| NL157717B (nl) | |
| US2630500A (en) | 1953-03-03 |