GB962576A - Improvements in or relating to clamping devices - Google Patents
Improvements in or relating to clamping devicesInfo
- Publication number
- GB962576A GB962576A GB1766261A GB1766261A GB962576A GB 962576 A GB962576 A GB 962576A GB 1766261 A GB1766261 A GB 1766261A GB 1766261 A GB1766261 A GB 1766261A GB 962576 A GB962576 A GB 962576A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wedge
- nut
- clamping
- spindle
- advanced
- 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
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
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
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/43—Details of wedges
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)
- Bridges Or Land Bridges (AREA)
Abstract
962,576. Telescopic pit props. RHEINSTAHL WANHEIM G.m.b.H. May 15, 1961 [May 19, 1960; Sept. 7, 1960], No. 17662/61. Heading E1E. A clamping wedge, Fig. 2, for a telescopic pit prop comprises clamping jaws 11, 12 adapted to be relatively displaced in the direction of the arrow B by wedge means 15 advanced by a clamping screw 16 against the action of a spring 19, the screw being disposed in a recess 20 in the driving head 10, 14 of the member 11. In a modification, Fig. 3, a clamping wedge 102 is advanced in the direction of the arrow A by a motor or spanner acting on a spindle 103, 104. The spindle is advanced against a spring 106 until its screwthreads 103a contact a divided nut 108 whereupon the spindle is turned to engage the nut. The nut slides along inclined strips 109 without rotating thereby tensioning springs 110 disposed between the nut and the wedge 102. Knocking back is effected by hammering on the thin end 101 of the wedge thereby resetting the device. In a second modification, Fig. 6, an outer wedge 118 is provided having hammering surfaces 118a, 118b and two transversely movable jaws 119 advanced by a clamping wedge 120a, 120b tensioned by a spindle 122 engaging a divided nut 121. The extent of the clamping wedge tension may be indicated by an indicating device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER0028003 | 1960-05-19 | ||
| DER0028691 | 1960-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB962576A true GB962576A (en) | 1964-07-01 |
Family
ID=25991367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1766261A Expired GB962576A (en) | 1960-05-19 | 1961-05-15 | Improvements in or relating to clamping devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB962576A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004092539A1 (en) * | 2003-04-15 | 2004-10-28 | Sai Hydraulics Inc. | Improved pump drive head with integrated stuffing box and clamp |
-
1961
- 1961-05-15 GB GB1766261A patent/GB962576A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004092539A1 (en) * | 2003-04-15 | 2004-10-28 | Sai Hydraulics Inc. | Improved pump drive head with integrated stuffing box and clamp |
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