Railways – Track layers – Tamper
Patent
1978-01-30
1980-08-26
Reese, Randolph A.
Railways
Track layers
Tamper
104 10, E01B 2716
Patent
active
042189780
ABSTRACT:
Apparatus for tamping the bed of a railway track comprises a wheel mounted tamping machine frame on which is mounted a vertically displaceable support for tamping tools. The tools are mounted on the tool support in opposed pairs and each tool comprises an arm having at least one pick extending therefrom and provided at its lower end with a blade. A motor driven crank-shaft is journalled in a bearing rigidly connected to the tool support and includes eccentric bearings on each of which the arm of a tamping tool is pivoted by its end remote from the blade so as to impart vibratory oscillations to the tool. So that substantially only generally horizontal vibratory oscillations are transmitted to the blade, the arms of the tools are formed of a generally squarely elbowed configuration, and are each connected to the tool support by a double-acting piston cylinder. The piston cylinder extends in a nearly vertical direction and is pivoted at one end to the tool in the region of the elbow of the arm of the tool and at its other end, to the tool support. The piston cylinder provides pivotal movements of the arm about the crank-shaft to squeeze the ballast beneath a tie.
REFERENCES:
patent: 2096724 (1963-07-01), Kershaw
patent: 2926617 (1960-03-01), Kershaw
patent: 3016023 (1962-01-01), Plasser et al.
patent: 3625156 (1971-12-01), Anderson
patent: 3675581 (1972-07-01), Plasser et al.
patent: 3714901 (1973-02-01), Stewart
Matisa Materiel Industriel S.A.
Reese Randolph A.
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