Railway rolling stock – Trucks – Stub axle
Patent
1975-10-23
1977-11-15
Spar, Robert J.
Railway rolling stock
Trucks
Stub axle
104 1A, 105223, 295 38, 308 55, 308180, B60B 3514, B61F 316, B61F 528, B61F 538
Patent
active
040580652
ABSTRACT:
The railway truck disclosed herein is provided with a split axle composed of two transverse aligned axle members each having mounted on the outer end thereof a rail wheel. The inner ends of the axle members in one embodiment are connected by means forming a movable joint between such inner ends to enable the axle members to be moved to raise the rail wheels from the tracks, such connecting means also including means to restrict the relative movements of the two axle members. In this embodiment the two axle members are pivotally connected to the vehicle by means which enables lateral movement of such members during such relative movements thereof. Means are provided to raise the jointed inner ends of such axle members to raise the rail wheels. In another embodiment, the outer end of each axle member is supported by a main load carrying floating bearing construction permitting movement of such member about a pivot point located directly above the rail. The inner end of each axle member is supported by a bearing construction slidably mounted in a housing to permit of transverse movement of such inner end about said pivot point. The housing includes means to restrict and cushion the transverse movements of the inner end of the axle member. In both embodiments, the axle members are disposed at an angle of less than 90.degree. to the vertical so that the wheels are tilted inwardly from the vertical. Further, the rail wheels each have a riding surface which converges toward the flange thereof so that a line projecting inwardly from such surface is disposed at a given acute angle to the central longitudinal axis of the wheel axle.
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patent: 3434432 (1969-03-01), Seifert
patent: 3945326 (1976-03-01), Seifert
Beltran Howard
Hart John J.
Spar Robert J.
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