Swing bridge for the spanning of watercourses

Details Swing bridge for the spanning of watercourses Swing bridge for the spanning of watercourses

1992-03-16

1993-11-23

Dorner, Kenneth J.

Bridges

Draw

Swing

14 37, 14 27, E01D 1504, E01D 1506, E01D 1508

Patent

active

052632172

ABSTRACT:
The swing bridge for the spanning of watercourses, defined by a first bank and by a second bank on which there are tracts of road surface, is constituted by a first mobile plane restable, at its first end on the said first bank and is supported, at its other end in proximity to the said second bank with possibility of free rotation about its vertical axis passing through its own longitudinal axis of symmetry and defined by a vertical hinge pivot; the second end of the said mobile plane being hinged about its horizontal transversal axis to the said hinge pivot and having hinged to itself a connecting plane of the mobile plane with the second bank; between the mobile plane and the connecting plane there being envisaged movement organs of the said connecting plane and the mobile plane bearing inferiorly at least one floating hollow body with adjustable trim which raises or lowers the said first end and nautical propulsion organs which move the said mobile plane in rotation about the said hinge pivot after the said mobile plane and the said connecting plane have been raised from the said banks.

REFERENCES:
patent: 175019 (1876-03-01), Borgfeldt
patent: 383880 (1888-06-01), Harman
patent: 1078293 (1913-11-01), Leslie
patent: 1106259 (1914-08-01), Turner
patent: 4169296 (1979-10-01), Wipkinr et al.
patent: 4590634 (1986-05-01), Williams
patent: 4621385 (1986-11-01), Gillois

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