×

Track working or transport vehicle

  • US 4,399,881 A
  • Filed: 08/05/1980
  • Issued: 08/23/1983
  • Est. Priority Date: 10/05/1979
  • Status: Expired due to Term
First Claim
Patent Images

1. A track working or transport vehicle comprising(a) a frame,(b) two spaced apart undercarriages supporting the frame, each one of the undercarriages having a respective side frame associated with a respective one of the track rails, an axle supported on the side frames and a respective wheel mounted on the axle and running on the respective track rail,(c) spring means mounted between the side frames of the undercarriages and the frame of the vehicle, each of the spring means having a stroke whose length corresponds directly to variable loads distributed to a respective one of the wheels from the frame,(d) a displacement pickup connected to each one of the spring means and arranged to measure the stroke of the spring means connected thereto, the pickup generating an electrical output signal corresponding directly to the measured stroke, and(e) an arrangement for continuously monitoring and indicating the loads distributed to the respective wheels, the arrangement including(1) a summation circuit having a first input receiving the output signals from the pickups, a second input receiving fixed electric signals corresponding to the weight of non-yieldingly mounted parts of the undercarriages, and an output transmitting electrical output signals corresponding directly to the wheel loads derived from the inputs, and(2) an indicator device receiving each output signal from the summation circuit and correspondingly indicating the wheel loads.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×