Universally suspended snubbing railway axle truck
AssigneeBritish Steel Corporation
InventorsAlan H. Briggs, Eric Timmons
Life of this patent
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Abstract
This invention provides a railway wagon suspension unit comprising a frame mounted over a saddle accommodating an axle journal housing. The saddle can rock laterally relative to the journal housing. Suspension means are disposed between the frame and the saddle including load springs for vertical support, and a friction wedge block is mounted on the saddle and firmly biassed against the axle journal housing to provide substantially constant frictional forces against lateral motion between the saddle and the housing independently of vertical movement or loading of the frame. In this manner lateral restraints imposed on wheel set oscillations during service are not load sensitive as has been the case with some wedge-pot dampers and other suspensions hitherto.
Claims10
A railway wagon suspension unit comprising
- a saddle
- an axle journal housing accommodated in the saddle, the saddle being mounted for lateral rocking movement relative to the axle journal housing
- a frame mounted over the saddle, the frame being vertically moveable relative to the saddle in response to vertical loads applied to the frame,
- suspension means disposed between the frame and the saddle and including
- load springs for vertical support, and
- a friction block mounted on the saddle and firmly biassed against the axle journal housing whereby to provide substantially constant frictional forces against lateral motion between the saddle and the housing independently of vertical loading on the frame.
A railway wagon suspension unit comprising
- a saddle
- an axle journal housing accommodatd in the saddle, the saddle being mounted for lateral rocking movement relative to the axle journal housing
- a frame mounted over the saddle, the frame being vertically moveable relative to the saddle in response to vertical loads applied to the frame
- suspension means disposed between the frame and the saddle and including, on opposite sides of the journal housing,
- a pair of load springs for vertical support, and
- a pair of friction wedges mounted on the saddle and firmly biassed against the axle journal housing whereby to provide substantially constant frictional forces against lateral motion between the saddle and the housing independently of vertical loading on the frame.
A railway wagon suspension unit comprising
- a saddle
- an axle journal housing accommodated in the saddle, the saddle being mounted for lateral rocking movement relative to the axle journal housing
- a frame mounted over the saddle, the frame being vertically moveable relative to the saddle in response to vertical loads applied to the frame
- suspension means disposed between the frame and the saddle and including, on opposite sides of the journal housing,
- a pair of load spring means for vertical support,
- a pair of friction wedges mounted on the saddle and firmly biassed against the axle journal housing whereby to provide substantially constant frictional forces against lateral motion between the saddle and the housing independently of vertical loading on the frame, and
- a pair of stabilising traction rods mounted substantially horizontally between the frame and the saddle.
Dependencies are inferred from the claim text.