GB760785A - Improvements in or relating to telescopically adjustable props, tie rods and the like - Google Patents
Improvements in or relating to telescopically adjustable props, tie rods and the likeInfo
- Publication number
- GB760785A GB760785A GB16047/51A GB1604751A GB760785A GB 760785 A GB760785 A GB 760785A GB 16047/51 A GB16047/51 A GB 16047/51A GB 1604751 A GB1604751 A GB 1604751A GB 760785 A GB760785 A GB 760785A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- relating
- july
- compressed
- rubber
- 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
- 239000007788 liquid Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G25/08—Shores or struts; Chocks telescopic with parts held relatively to each other by friction or gripping
-
- 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
-
- 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
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G2025/047—Shores or struts; Chocks telescopic which telescoping action effected by a piston
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)
- Architecture (AREA)
- Civil Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
760,785. Friction grip fastenings. BELLMANN, E. July 6. 1951 [July 6, 1950], No. 16047/51. Class 44. [Also in Groups X and XXIV] A telescopic pit prop, tie rod, &c. comprises an inner member 3 adapted to be clamped by the frictional grip of a flexible sleeve 8 on which acts liquid, gas, rubber or other elastic medium 2 in an annular chamber 4 in the outer member 1 compressed by a screw cap 7 and a bush 6 on the chamber may be within the inner member, Fig. 3. The sleeve 8 is longitudinally slit. The rubber 2 may be formed with an annular chamber containing a gaseous, liquid or other elastic medium. This chamber may be changed after being placed in position, through a valve and the pressure therein increased by a piston which is forced into the chamber. This modification is also shown arranged for the supply of pressure fluid under the part 3. In Fig. 3 the material 2 is contained in the lower part of the inner part 3 which is here made expandible, i.e. thinner, or is slit. The material 2 is compressed by a wedge 18 and rod 17. The inner part 3 may taper towards its lower end.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE760785X | 1950-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB760785A true GB760785A (en) | 1956-11-07 |
Family
ID=6663159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16047/51A Expired GB760785A (en) | 1950-07-06 | 1951-07-06 | Improvements in or relating to telescopically adjustable props, tie rods and the like |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE504299A (en) |
| GB (1) | GB760785A (en) |
| NL (1) | NL89632C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681139A (en) * | 2020-12-17 | 2021-04-20 | 何陆灏 | Civil engineering safety construction sand box device |
-
0
- NL NL89632D patent/NL89632C/xx active
- BE BE504299D patent/BE504299A/xx unknown
-
1951
- 1951-07-06 GB GB16047/51A patent/GB760785A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681139A (en) * | 2020-12-17 | 2021-04-20 | 何陆灏 | Civil engineering safety construction sand box device |
| CN112681139B (en) * | 2020-12-17 | 2022-04-15 | 何陆灏 | Civil engineering safety construction sand box device |
Also Published As
| Publication number | Publication date |
|---|---|
| NL89632C (en) | |
| BE504299A (en) |
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