摘要:
An improved railroad trackwork spring wing frog (10) is provided with a rail-closer (70) having a single compression spring (72) whose reaction forces are applied to the frog spring wing rail (50) through movable linkages (78, 80) that are each connected to the spring wing rail (50) at different spaced-apart position and that each abut the single compression spring (72).
摘要:
A railroad frog assembly (10) is provided with a spring wing rail latch holdback subassembly (32) that continuously retains the spring wing rail (28) in a spring wing rail fully open position when activated by the wheels of a railcar traversing the frog assembly (10), and that automatically deactivates the latch holdback subassembly (32) and releases the spring wing rail (28) from retention in an open condition and for complete closing after the last railcar wheel has passed through the frog assembly (10).
摘要:
A railroad frog assembly is provided with a spring wing rail multi-position holdback subassembly (32) that continuously retains the spring wing rail (28) in each spring wing rail open position when activated by the wheels of a railcar traversing the frog assembly (20), and that automatically deactivates the multi-position holdback subassembly (32) and releases the spring wing rail (28) from retention in an open condition and for complete closing after the last railcar wheel has passed through the frog assembly (20).