Resources Contact Us Home
Apparatus and method of railroad tie replacement

Image Number 2 for United States Patent #7571681.

Disclosed is a method and apparatus for the simultaneous removal of an old railroad tie that is part of an existing railroad tie with a new railroad tie. The apparatus includes a first railroad car that places a new tie adjacent to the existing railroad track, a second railroad car which picks up and removes an old railroad tie after it has been replaced with the new railroad tie, and a third railroad car located between the first car and second car which has a hydraulic actuator that uses the new tie to simultaneously push out the old tie from under the railroad track and place into position the new tie. The first car has a conveyor that removes a new tie from the first car and places it in a location that is end-to-end adjacent to the old tie. The third car, using the hydraulic actuator takes the new tie and uses it to push the old tie out from under the railroad track and simultaneously place the new tie in proper position. The third car also includes a railroad track lifting frame which can lift the railroad track underneath the third car a slight amount.

  Recently Added Patents
Single-stage PFC converter with constant voltage and constant current
Semiconductor thin film, thin film transistor, method for manufacturing same, and manufacturing equipment of semiconductor thin film
Semiconductor memory device, method of controlling read preamble signal thereof, and data transmission method
Managing distributed applications using structural diagrams
Image forming apparatus and warming up method thereof
Image reproduction system and image reproduction processing program
Systems and methods for image stream processing
  Randomly Featured Patents
Apparatus for installing a carrier on beverage cans and the like
Air deodorizer holder
Method for manufacturing a composite vapor deposition film
Scented pendant for pet collar
Disaster recovery processing method and apparatus and storage unit for the same
Grooving cutting insert having a circular cutting edge provided with relief recesses
Video signal digitizer
Modular shelf system
Splitting apparatus for splitting coils of metal such as steel and aluminum and coils of other materials into strips
Locking means for an aircraft door