Railways – Track layers – Tamper
Patent
1988-03-08
1990-07-10
Focarino, Margaret A.
Railways
Track layers
Tamper
104 9, B61D 1500
Patent
active
049399985
ABSTRACT:
In a mobile machine for tamping ballast under ties of a railroad track, which comprises a machine frame, spaced undercarriages supporting the machine frame for mobility on the railroad track in an operating direction, and a ballast tamping assembly mounted on the machine frame and comprising a vertically adjustable tamping tool carrier, a drive for vertically adjusting the tamping tool carrier, pairs of vibratory and reciprocatory tamping tools immersible in the ballast upon vertical adjustment of the tamping tool carrier, and drives for vibrating and reciprocating the tamping tools, the invention provides a vertically adjustable device associated with the ballast tamping assembly for gripping and transversely positioning a respective one of the ties, and a drive for vertically adjusting the device. A vertically adjustable ballast broom device preferably precedes the tamping tool assembly for sweeping ballast off respective ones of the ties into an adjacent crib defined between successive ones of the ties.
REFERENCES:
patent: 1595420 (1926-08-01), Robb
patent: 2596823 (1952-05-01), Richardson
patent: 2996016 (1961-08-01), Keller
patent: 3537400 (1970-11-01), Taylor
patent: 3589298 (1971-06-01), Plasser et al.
patent: 4165694 (1979-08-01), Theurer
patent: 4421034 (1983-12-01), Allmer
patent: 4476786 (1984-10-01), Theurer
patent: 4534295 (1985-08-01), Theurer
Focarino Margaret A.
Fran Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.
Kelman Kurt
Pape Joseph D.
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