NL97173C - - Google Patents
Info
- Publication number
- NL97173C NL97173C NL183317A NL183317A NL97173C NL 97173 C NL97173 C NL 97173C NL 183317 A NL183317 A NL 183317A NL 183317 A NL183317 A NL 183317A NL 97173 C NL97173 C NL 97173C
- Authority
- NL
- Netherlands
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/01—Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section
-
- 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
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/096—Sliding
- Y10T292/1014—Operating means
- Y10T292/1022—Rigid
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)
- Emergency Lowering Means (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Pivots And Pivotal Connections (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Closures For Containers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE738819X | 1951-05-15 | ||
| DEG8038A DE1022992B (de) | 1951-05-15 | 1951-05-15 | Grubenausbaukappe mit Gelenkverbindung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL97173C true NL97173C (xx) | 1961-03-15 |
Family
ID=25947327
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL169456A NL95333C (xx) | 1951-05-15 | 1952-05-10 | |
| NL175621A NL95340C (xx) | 1951-05-15 | 1953-01-28 | |
| NL183317A NL97173C (xx) | 1951-05-15 | 1953-12-03 |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL169456A NL95333C (xx) | 1951-05-15 | 1952-05-10 | |
| NL175621A NL95340C (xx) | 1951-05-15 | 1953-01-28 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2780067A (xx) |
| BE (3) | BE511158A (xx) |
| DE (3) | DE1022992B (xx) |
| FR (4) | FR1050837A (xx) |
| GB (2) | GB738819A (xx) |
| NL (3) | NL95333C (xx) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1122915B (de) * | 1952-06-16 | 1962-02-01 | Gerlach Karl | Schwenkkappe fuer den Grubenausbau |
| US3097829A (en) * | 1959-01-16 | 1963-07-16 | Gullick Ltd | Roof support in mines |
| DE1149679B (de) * | 1960-04-01 | 1963-06-06 | Karl M Groetschel Dipl Ing | Vorrichtung zum maschinellen Verriegeln und Entriegeln von frei tragend vorzupfaendenden Kappen |
| US3163011A (en) * | 1960-11-14 | 1964-12-29 | Karl M Groetschel | Connection for lagging irons |
| US4218094A (en) * | 1978-02-06 | 1980-08-19 | The Knapheide Mfg. Co. | Safety brace |
| DE3629214A1 (de) * | 1986-08-28 | 1988-03-10 | Armo Bauelemente | Ausbauprofil fuer den gruben- und tunnelausbau |
| CN110424991B (zh) * | 2019-07-30 | 2021-07-23 | 中国矿业大学 | 一种可收缩式弧形顶梁 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB416999A (en) * | 1933-05-18 | 1934-09-26 | Raine & Company Ltd | An improved collapsible pit prop |
| NL70049C (xx) * | 1948-07-30 | |||
| FR993340A (fr) * | 1951-04-23 | 1951-11-12 | Bochumer Eisen Heintzmann | Dispositif de soutènement pour exploitations minières par taille |
-
1951
- 1951-05-15 DE DEG8038A patent/DE1022992B/de active Pending
- 1951-05-16 DE DEG6081A patent/DE955679C/de not_active Expired
-
1952
- 1952-02-14 FR FR1050837D patent/FR1050837A/fr not_active Expired
- 1952-02-20 FR FR63233D patent/FR63233E/fr not_active Expired
- 1952-05-05 BE BE511158D patent/BE511158A/xx unknown
- 1952-05-08 GB GB1162752A patent/GB738819A/en not_active Expired
- 1952-05-10 NL NL169456A patent/NL95333C/xx active
- 1952-05-12 US US28744152 patent/US2780067A/en not_active Expired - Lifetime
- 1952-12-18 DE DEG10538A patent/DE1031245B/de active Pending
-
1953
- 1953-01-27 BE BE517193D patent/BE517193A/xx unknown
- 1953-01-28 GB GB247253A patent/GB750229A/en not_active Expired
- 1953-01-28 NL NL175621A patent/NL95340C/xx active
- 1953-12-03 NL NL183317A patent/NL97173C/xx active
- 1953-12-16 BE BE525093D patent/BE525093A/xx unknown
- 1953-12-18 FR FR1089716D patent/FR1089716A/fr not_active Expired
-
1955
- 1955-04-25 FR FR64232D patent/FR64232E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE955679C (de) | 1957-01-10 |
| NL95340C (xx) | 1960-09-15 |
| BE517193A (xx) | 1954-12-10 |
| NL95333C (xx) | 1960-09-15 |
| DE1022992B (de) | 1958-01-23 |
| GB750229A (en) | 1956-06-13 |
| US2780067A (en) | 1957-02-05 |
| BE511158A (xx) | 1953-11-20 |
| FR1089716A (fr) | 1955-03-21 |
| BE525093A (xx) | 1956-04-27 |
| GB738819A (en) | 1955-10-19 |
| FR63233E (fr) | 1955-09-12 |
| FR1050837A (fr) | 1954-01-11 |
| DE1031245B (de) | 1958-06-04 |
| FR64232E (fr) | 1955-11-09 |