Radial railway truck
AssigneeUrban Transportation Development Corporation Ltd.
InventorRoy E. Smith
Life of this patent
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AssigneeUrban Transportation Development Corporation Ltd.
InventorRoy E. Smith
Estimating the term…
A short wheelbase railroad truck having two axles intended to assume a radial configuration when the railroad vehicle rounds curves comprises a frame having two side members and axles mounted in bearing means. The bearing means are pivotally attached to the frame members with at least two of the bearing means being attached to the frame members by means of steering levers which are pivotally attached to the associated bearing means and the frame members for independent pivotal movement. Steering rods connect each steering lever to the vehicle body such that the chording of the vehicle as it rounds a curve will guide each axle to the radial alignment. In one embodiment each axle is guided by such steering rods and levers. In another embodiment one axle is guided by steering rods and levers and the side members move relatively longitudinally to guide the other axle.
A self steering truck for use in association with a railway vehicle, comprising a first axle, a second axle and frame members extending between said axles;
A self steering truck for use in association with a railway vehicle comprising a first axle and a second axle and having at least two frame members extending between said axles, each of said axles having a pair of flanged wheels fixed thereto, each of said axles mounted in a plurality of bearing means for rotation about a generally horizontal axis, a steering lever pivotally attached to each of the bearing means of at least one of said axles to permit relative pivotal movement about a generally vertical axial pivot, each of said steering levers attached to one of said frame members for relative pivotal movement between said frame member and said steering lever about a generally vertical axial pivot horizontally spaced from the axial pivot of the bearing means, a steering rod attached to each of said steering levers for relative pivotal movement about a generally vertical axial pivot, each of said steering rods being attached to said vehicle, said bearing means of the other of said axles being attached to said frame members for relative pivotal movement between said bearing means and said frame members about a generally vertical axial pivot, whereby said first and said second axles assume a radial position when the railway vehicle travels a curve.
A self steering truck for use in association with a railway vehicle comprising a first axle and a second axle and having frame members extending between said axles, said first and said second axle each having a pair of flanged wheels fixed thereto, each of said axles mounted in a plurality of bearing means for rotation about a generally horizontal axis;
Dependencies are inferred from the claim text.