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Found results for
 patents
1.
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LOCKING HEAD
| Application Number |
DE2012000055 |
| Publication Number |
2012/100768 |
| Status |
In Force |
| Filing Date |
2012-01-25 |
| Publication Date |
2012-08-02 |
| Owner |
MONTANHYDRAULIK GMBH (Germany)
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| Inventor |
Pitson, Ian
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Abstract
Locking head for telescopic cylinders of a crane jib comprising a plurality of telescopic sections, said locking head having the following features: a) actuating elements (4, 5) for actuating the locking of successive telescopic sections are mounted in a housing (3); b) the actuating elements (4, 5) each have a toothed rod section (19, 20) or are connected to such a toothed rod section; c) an adjustment means for simultaneously moving the actuating elements (4, 5) is provided; d) a drive element (7) for driving the adjustment means is provided; e) two cylinder catches (17, 18) are movable in a translational manner in the housing (3), in order to lock the locking head (1) with a telescopic section; f) a translationally movable catch drive (6) for actuating the cylinder catches (17, 18) is provided; g) the actuating elements (4, 5) are not movable simultaneously with the cylinder catches (17, 18), the adjustment means being formed by two pinion shafts (21, 22), which are each in engagement with a toothed rod section (19, 20) of an actuating element (4, 5) and secondly with toothed rod sections (23, 24) of the common drive element (7).
IPC Classes ?
- B66C 23/70 - Jibs assembled from separate sections to form jibs of various discrete lengths
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2.
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RECOIL PRESS
| Application Number |
DE2011001897 |
| Publication Number |
2012/055396 |
| Status |
In Force |
| Filing Date |
2011-10-26 |
| Publication Date |
2012-05-03 |
| Owner |
MONTANHYDRAULIK GMBH (Germany)
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| Inventor |
Stammen, Christian
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Abstract
Recoil press of a crane in the form of a gas cylinder, a piston rod engaging in a cylinder chamber of the gas cylinder being configured as a piston accumulator, the gas in the bottom space of the cylinder communicating with the gas in the piston rod and the annular space surrounding the piston rod. A sealing arrangement in a rod guide of the cylinder seals the piston rod off from the cylinder. The sealing arrangement comprises a lubricant groove extending around the rod guide via which groove the exterior of the piston rod is lubricated. The lubricant is under the gas pressure prevailing in the cylinder with a pressure transmitting element being interposed.
IPC Classes ?
- B66C 23/82 - Luffing gear
- B66C 23/92 - Snubbers or dash-pots for preventing backwards-swinging of jibs, e.g. in the event of cable or tackle breakage
- F16F 9/36 - Special sealings, including sealings or guides for piston-rods
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