Trailer warning panel assembly

Details Trailer warning panel assembly Trailer warning panel assembly

1974-10-03

1978-03-07

Pitrelli, John F.

Card, picture, or sign exhibiting

Signs

Trailer, wagon or cycle carried

40610, 340 87, G09F 2104

Patent

active

040771440

ABSTRACT:
A warning panel trailer in which the warning panel, with the plurality of discrete electrical image display means, is raised to various operative positions along a column support and lowered to an inoperative position in an elongated seat on top of a platform of the trailer. The seat extends between the front and back of the trailer so that the travelling trailer stores the warning panel with an edge facing the direction of travel and the plane of the panel facing away from such direction of travel. The warning panel is lowered and raised by a winched cable which turns around a lower pulley assembly adjacent the platform of the trailer and an upper, pivotally mounted pulley assembly which rotates with the warning panel when selectively positioning the warning panel.

REFERENCES:
patent: 3579880 (1971-05-01), Murphy
patent: 3609898 (1971-10-01), Brown
patent: 3622980 (1971-11-01), Elledge
patent: 3702033 (1972-11-01), Coleman
patent: 3852902 (1974-12-01), Wheeler

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