Continuous tamping device

Details Continuous tamping device Continuous tamping device

1976-03-15

1978-05-09

Hoffman, Drayton E.

Railways

Track layers

Tamper

104 10, 404117, 404133, E01B 2720

Patent

active

040880770

ABSTRACT:
A railroad track tamping machine for consolidating and compacting railroad track ballast includes ballast tampers, preferably rollers, adapted to roll over and between the ties, and guides for the rollers to guide them in a manner such that the rollers either roll over and between the ties or along the shoulders. The rollers are mounted in the guides and vibrator arrangements are provided for vibrating the rollers during operation thereof to consolidate and compact the ballast. In a preferred embodiment, the vibrator arrangement comprises a hydraulic system whereby the roller means are vibrated due to rapid fluctuations created in the system. Preferably the rollers are arranged in a set and are located one after the other so that each roller rolls over the same area of the ties and ballast as the other rollers of the set as the device moves once over a length of railroad track to be consolidated. When the hydraulic system is used to vibrate each of the rollers in the set, advantageous centipede-type action results.

REFERENCES:
patent: 1568241 (1926-01-01), Rimailho
patent: 2712287 (1955-07-01), Zurmuhle
patent: 2855862 (1958-10-01), Kind
patent: 3638578 (1972-02-01), Helgemeir
patent: 3675581 (1972-07-01), Plasser et al.
patent: 3807311 (1974-04-01), Plasser et al.
patent: 3981247 (1976-09-01), Theurer

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