GB870864A - Improvements in inverting gear for precast concrete structural sections - Google Patents
Improvements in inverting gear for precast concrete structural sectionsInfo
- Publication number
- GB870864A GB870864A GB7934/58A GB793458A GB870864A GB 870864 A GB870864 A GB 870864A GB 7934/58 A GB7934/58 A GB 7934/58A GB 793458 A GB793458 A GB 793458A GB 870864 A GB870864 A GB 870864A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cradles
- cradle
- track
- precast concrete
- rolled
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/08—Moulds provided with means for tilting or inverting
- B28B7/087—Moulds provided with means for tilting or inverting using rocker or rolling means
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
870,864. Inverting concrete beams. ALWEGFORSCHUNG G.m.b.H. March 12, 1958 [May 2, 1957], No. 7934/58. Class 78 (4). A long and heavy precast concrete beam, e.g. a track for an elevated mono-railway, is inverted by a device including a lower cradle 1 rolled along a track 13 and an upper cradle 2 separable from the lower cradle 1 and rolled along a further track 13. As illustrated, the lower cage 1, which carries a rail truck transporting the beam, is locked in its displaced position by a pin passing through registering holes in the cradle and in a fixed bracket 21. Bolts 4 connecting ties 19 between the upper and lower cradles 1, 2 are then disconnected so that the upper cradle can be rolled to the position shown in broken lines which brings the beam 7 to its proper position for erection. The tracks 13 may be formed as racks engaged by teeth 12 on the cradles 1, 2 and the cradles may be moved by cables 18, 19, as illustrated, or by rams connected between the cradles or between the cradles and the fixed sub-structure. Clamps 9 securing the beam 7 may be operated by screws or by hydraulic or pneumatic rams and terminate in plates 10 carrying hard rubber facings 11.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE870864X | 1957-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB870864A true GB870864A (en) | 1961-06-21 |
Family
ID=6809306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7934/58A Expired GB870864A (en) | 1957-05-02 | 1958-03-12 | Improvements in inverting gear for precast concrete structural sections |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB870864A (en) |
-
1958
- 1958-03-12 GB GB7934/58A patent/GB870864A/en not_active Expired
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