Lifting and lowering a rail section

Details Lifting and lowering a rail section Lifting and lowering a rail section

1986-04-11

1987-11-17

Rolla, Joseph J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 28, 187 76, 187 80, 104127, B66B 100, B66B 516, B61B 300

Patent

active

047067829

ABSTRACT:
A device for lifting and lowering a rail track section in between two rail tracks mounted in different vertical levels and including an elevator carrying the rail track section is improved by means of a latching structure at each end of that section, each including a rotatable latch element with rounded ends, for cooperating with abutment and counter latch surfaces respectively at ends of the rail tracks, at least an upper one of the tracks has passage ways and openings for the latch element to pass through from below; and the latch elements are keyed together for turning so that they will rest on the respective counter latch surfaces and thereby hold the rail track section in an aligned disposition for one or the other of the two rail tracks.

REFERENCES:
patent: 684013 (1901-10-01), Warren
patent: 1120293 (1914-12-01), Ekedahl
patent: 1703743 (1929-02-01), Mair
patent: 2173289 (1939-09-01), Staley
patent: 2799423 (1957-07-01), Kaye
patent: 3100029 (1963-08-01), Leo
patent: 3661412 (1972-05-01), Morris
patent: 3783792 (1974-01-01), Cullom
patent: 4395180 (1983-07-01), Magnotte

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