Support device for railway rails

Details Support device for railway rails Support device for railway rails

1996-05-15

1998-03-10

Le, Mark T.

Railways: surface track

Deadening noise

238109, 238115, E01B 100

Patent

active

057251495

ABSTRACT:
A support device has a boot 2 made of elastic material, having a bottom 3 and a peripheral sidewall 4 attached to the bottom and extending upwardly therefrom. The boot is configured to envelop a crosstie 1 from the base thereof up to a predetermined height on the side faces of the crosstie. The boot includes a first region 13 and a second region 14 for contact with the crosstie, the first region being formed at the free margin of the sidewall, and the second region being formed by a peripheral bead 11 located around the crosstie and exhibiting a predetermined dynamic stiffness. The inner surface 16 of the sidewall is slanted towards the inside of the boot with respect to the side faces of the crosstie starting from a zone located at the height of the bead so as to form a space 17 between the slanted inner surface and the side faces of the crosstie. In each comer of the sidewall, the inner surface has a recess 22 having a cross section which increases from the upper free margin of the sidewall as far as a predetermined vertical height on the inner surface.

REFERENCES:
patent: 3907200 (1975-09-01), Bernard
patent: 4728032 (1988-03-01), Beigl et al.
patent: 5551631 (1996-09-01), Cailliau

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