NL6413838A - - Google Patents
Info
- Publication number
- NL6413838A NL6413838A NL6413838A NL6413838A NL6413838A NL 6413838 A NL6413838 A NL 6413838A NL 6413838 A NL6413838 A NL 6413838A NL 6413838 A NL6413838 A NL 6413838A NL 6413838 A NL6413838 A NL 6413838A
- Authority
- NL
- Netherlands
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/58—Devices for setting props or chocks
- E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
- E21D15/586—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded
- E21D15/588—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded the lock also being activated
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/30—Telescopic props with parts held relatively to each other by friction or gripping by means expanded or contracted by pressure applied through the medium of a fluid or quasi- fluid, e.g. rubber
- E21D15/306—Telescopic props with parts held relatively to each other by friction or gripping by means expanded or contracted by pressure applied through the medium of a fluid or quasi- fluid, e.g. rubber by means of a liquid
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/58—Devices for setting props or chocks
- E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
- E21D15/586—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER36679A DE1215635B (de) | 1963-11-29 | 1963-11-29 | Reibungsstempel mit hydraulischer Setz- und Spannvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
NL6413838A true NL6413838A (de) | 1965-05-31 |
Family
ID=7404976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL6413838A NL6413838A (de) | 1963-11-29 | 1964-11-27 |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE656028A (de) |
DE (1) | DE1215635B (de) |
NL (1) | NL6413838A (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE486663A (de) * | 1948-01-12 | |||
GB761883A (en) * | 1953-01-15 | 1956-11-21 | Eugen Bellmann | Improved extensible pit props |
DE1143172B (de) * | 1957-12-30 | 1963-02-07 | Karl Maria Groetschel Dipl Ing | Hydraulisch zu setzender und zu verspannender Grubenstempel |
DE1815824U (de) * | 1959-08-28 | 1960-08-04 | Georg Bachmann | Grubenstempel mit hydraulischer schlossklemmung. |
-
1963
- 1963-11-29 DE DER36679A patent/DE1215635B/de active Pending
-
1964
- 1964-11-20 BE BE656028D patent/BE656028A/xx unknown
- 1964-11-27 NL NL6413838A patent/NL6413838A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE1215635B (de) | 1966-05-05 |
BE656028A (de) | 1965-03-16 |