GB1231669A - - Google Patents
Info
- Publication number
- GB1231669A GB1231669A GB1231669DA GB1231669A GB 1231669 A GB1231669 A GB 1231669A GB 1231669D A GB1231669D A GB 1231669DA GB 1231669 A GB1231669 A GB 1231669A
- Authority
- GB
- United Kingdom
- Prior art keywords
- leg
- base plate
- angular
- upper disc
- disc
- 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
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
- E21D15/002—Auxiliary devices in which the prop type is not essential
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)
- Tents Or Canopies (AREA)
- Telephone Set Structure (AREA)
- Toys (AREA)
- Details Of Measuring And Other Instruments (AREA)
Abstract
1,231,669. Angular adjustment of props. GULLICK DOBSON Ltd. 25 April, 1969 [2 Oct., 1968], No. 21185/69. Heading E1P. The angular orientation of an extensible mine roof support leg 4, articulated at its respective ends to a base plate 1 and canopy (not shown), is controlled by means of a resilient steady 5, mounted on the base plate and coupled to said leg 4 via an accentric device. The latter comprises two superposed discs, the upper disc 8 being selectively rotatable relative to the fixed lower disc 7 and having an eccentrically fixed spigot 13 engaged by connecting rod 14. By turning the upper disc 8 17 is thus possible to alter the angular disposition of leg 4, in any direction.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681800562 DE1800562A1 (en) | 1968-10-02 | 1968-10-02 | Spring-loaded punch supports for a pit support element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1231669A true GB1231669A (en) | 1971-05-12 |
Family
ID=5709334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1231669D Expired GB1231669A (en) | 1968-10-02 | 1969-04-25 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3625465A (en) |
| DE (1) | DE1800562A1 (en) |
| GB (1) | GB1231669A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7803467B2 (en) * | 2006-04-07 | 2010-09-28 | Dorsy Sean C | Multi-tiered, expandable panel structures and methods of manufacturing the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1553800A (en) * | 1920-10-18 | 1925-09-15 | Brandt & Krell Engineering Com | Knockdown pipe derrick |
| US2908461A (en) * | 1956-04-23 | 1959-10-13 | Davis L Coffeen | Supporting device |
| GB1107379A (en) * | 1964-08-11 | 1968-03-27 | Gullick Ltd | Improvements in or relating to pivotally supported members particularly of mine roof supports |
| GB1167614A (en) * | 1966-02-17 | 1969-10-15 | Bergwerksverband Gmbh | Method and Control System for Adjusting a Pit Prop Axis |
-
1968
- 1968-10-02 DE DE19681800562 patent/DE1800562A1/en active Pending
-
1969
- 1969-04-25 GB GB1231669D patent/GB1231669A/en not_active Expired
- 1969-04-28 US US819781A patent/US3625465A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3625465A (en) | 1971-12-07 |
| DE1800562A1 (en) | 1970-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |