Endless ballast conveyor chain

Details Endless ballast conveyor chain Endless ballast conveyor chain

1975-07-21

1977-03-29

Kinsey, Russell R.

Unearthing plants or buried objects

Railroad ballast removal and assorting or separating

104 7A, 37107, 198812, E01B 2700

Patent

active

040143899

ABSTRACT:
The chain tensioning device for an endless ballast conveyor chain comprises a first, transverse chain guide for a stringer arranged to extend transversely of the track and therebelow and two longitudinally extending, pivotal chain guides rising from the transverse chain guide for two stringers arranged laterally of the machine frame and extending from respective ends of the first stringer, guide rollers being mounted at the ends for guiding the stringers in a polygonal path. One of the chain guides comprises an upper and a lower part movable in relation to each other in the direction of chain elongation. A power drive moves the two chain guide parts to adjust the effective length of the chain guide and thus selectively shortens or lengthens the effective circumference of the endless chain.

REFERENCES:
patent: 1145739 (1915-07-01), Bartges
patent: 2858936 (1958-11-01), Ogden
patent: 2914867 (1959-12-01), Scheuchzer et al.
patent: 3339493 (1967-09-01), Bryan, Jr.
patent: 3685589 (1972-08-01), Plasser et al.
patent: 3818619 (1974-06-01), Plasser et al.

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