Communications: electrical – Digital comparator systems
Patent
1983-10-05
1986-06-03
Rowland, James L.
Communications: electrical
Digital comparator systems
340109, 340119, 40550, 40590, 280 3399T, B60Q 124
Patent
active
045932654
ABSTRACT:
Traffic control apparatus of the wheeled trailer type having pairs of links for selectively and uniformly moving a traffic control message panel between a substantially vertical display position and a substantially horizontal storage/transit position. Three pairs of links are controlled by a winch-cable system coupled thereto to control the pivoting movements of the pairs of links to cause the smooth movement of the traffic control message panel between positions. The pivot points for the pairs of linkages are preselected to minimize the tension on the winch cable during the panel movements between positions.
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DaRin Edward J.
Lear Siegler, Inc.
Rowland James L.
Tumm Brian R.
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