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US 5,730,064 AGranted
Self-steering railway bogie
OwnerArthur Ernest Bishopinventor
Life of this patent
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OwnerArthur Ernest Bishopinventor
Estimating the term…
A self steering railway bogie configured to run on a railway track having two opposed rails defining a track centerline therebetween. The bogie has a forward end and a rearward end and includes a pair of axle sets having a forward axle set and a rearward axle set disposed at the forward end and at the rearward end of the bogie, respectively. Each axle set has a pair of independently rotating wheels defining wheel axes, each wheel being disposed at a respective side of a corresponding axle set and further having a rail-engaging profile such that a wheel of each axle set moving away from the track centerline rises and a wheel of each axle set moving toward the track centerline falls. The axle sets are configured such that, when the bogie enters and traverses a curved section of track defining a center of curvature, the wheels of the forward axle set move away from the center of curvature and the wheels of the rearward axle set move toward the center of curvature whereby the forward axle set and the rearward axle set become inclined at different inclination angles with respect to a horizontal plane as a function of a curvature of the track. The bogie further includes a mechanism arranged and constructed for steering the bogie in response to the inclination angles of the axle sets such that the wheel axes converge on the center of curvature of the curved section of track.
A self steering railway bogie configured to run on a railway track having two opposed rails defining a track centerline therebetween, the bogie having a forward end and a rearward end and comprising:
A self steering railway bogie configured to run on a railway track having two opposed rails, the bogie having a pair of axle sets one at each end, each axle set having a pair of wheels at opposite sides thereof, each wheel being independently rotatable on an axle, the wheels of at least one axle set having contours on the periphery thereof such that, on being displaced laterally with respect to the other axle set and relative to the center line of the track, one wheel will rise and the other will fall with respect to the wheels of said second axle set whereby said one axle set becomes tilted with respect to said second axle set and means responsive to said tilt to steer one or both axle sets, wherein the axle set of each wheel has an axis which is inclined downwardly toward the center of the track, the wheels having the contours on their periphery where they contact said track, the contours being downwardly inclined toward the center of the track, wherein said means responsive to said tilt of one of said axle sets with respect to the other axle set is connected by a linkage to the axles and is constructed and arranged so as to steer each said axle set so that each wheel of the set tends to align with the center line of the respective rail beneath it.
A self steering railway bogie configured to run on a railway track having two opposed rails, the bogie having a pair of axle sets one at each end, each axle set having a pair of wheels at opposite sides thereof, each wheel being independently rotatable on an axle, the wheels of at least one axle set having contours on the periphery thereof such that, on being displaced laterally with respect to the other axle set and relative to the center line of the track, one wheel will rise and the other will fall with respect to the wheels of said second axle set whereby said one axle set becomes tilted with respect to the second axle set, and means responsive to said tilt to steer one or both axle sets;
Dependencies are inferred from the claim text.