NL112437C - - Google Patents
Info
- Publication number
- NL112437C NL112437C NL112437DA NL112437C NL 112437 C NL112437 C NL 112437C NL 112437D A NL112437D A NL 112437DA NL 112437 C NL112437 C NL 112437C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
- H01R13/635—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only by mechanical pressure, e.g. spring force
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
- H01H3/0226—Emergency operating parts, e.g. for stop-switch in dangerous conditions operated by a pull cord
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Switches With Compound Operations (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR856564X | 1957-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL112437C true NL112437C (en) |
Family
ID=9328976
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL224198D NL224198A (en) | 1957-03-28 | ||
| NL112437D NL112437C (en) | 1957-03-28 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL224198D NL224198A (en) | 1957-03-28 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB856564A (en) |
| NL (2) | NL112437C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2380790A2 (en) * | 1977-02-22 | 1978-09-15 | Colmant Cuvelier | Automatic water sprinkler system for coal conveyor - has fusible plug to start water spray and float valve to stop it after preset delay for fire protection |
-
0
- NL NL224198D patent/NL224198A/xx unknown
- NL NL112437D patent/NL112437C/xx active
-
1957
- 1957-12-10 GB GB38302/57A patent/GB856564A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL224198A (en) | |
| GB856564A (en) | 1960-12-21 |