Resources Contact Us Home
Crane backstay spreader

Image Number 4 for United States Patent #8127949.

A backstay spreader attachable between a pair of backstay sections on a crane includes first and second members each having a backstay section connector at a first end and a pivoting joint connector at a second end, the pivoting joint connectors being used to hold the first and second members together with a pivotal connection and each having an extending portion extending away from the pivotal connection, with an angle between the extending portions. The backstay spreader also includes an actuator mounted between the pivoting joint connectors. The actuator controls the angle between the extending portions of the two pivoting joint connectors, which defines an angle between the first and second members. When the actuator forces the two extending portions towards each other, the first and second members pivot around the pivotal connection to force the first and second backstay sections further apart from one another, and when the actuator allows the two extending portions to pivot away from each other, the first and second members pivot towards each other, allowing the backstay sections to come closer together.

  Recently Added Patents
Discovering and interacting with service providers
Golf shoe outsole
Automated print shop service capability determination
Process and targets for production of no-carrier-added radiotin
Adaptive internal table backup for non-volatile memory system
Method for dynamically throttling transactional workloads
System and method for selecting audio contents by using speech recognition
  Randomly Featured Patents
Apparatus for growing large silicon carbide single crystals
Accelerated mulching paper degradation process and mulching paper for implementing the process
Silicon semiconductor devices with .delta.-doped layers
Conformal-coated pick and place compatible devices
Tethered seat back for preventing rearward movement of a seat back during a vehicle rear-end collision
Snow removal device
N-heterocyclic-N-(4-piperidinyl) amides and pharmaceutical compositions and methods employing such compounds
Geomatic pole support and foot therefor
Peptide for triggering an immune reaction against tumor cells
Exercise machine