Road structure – process – or apparatus – Apparatus – With means for profile shaping – e.g. – crown
Patent
1991-05-31
1992-12-22
Britts, Ramon S.
Road structure, process, or apparatus
Apparatus
With means for profile shaping, e.g., crown
404105, E01C 1948
Patent
active
051730057
ABSTRACT:
A continuous concrete curb forming apparatus is formed by a vertical open end sleeve-like hopper having a channel-like member connected with its depending opening forming the shape of a conventional concrete curb as wet concrete poured in the hopper is released from the channel member.
The hopper is connected with one end of a rectangular frame mounted on the forward end of a tractor. Hydraulically operated cylinders on the apparatus are connected with the tractor hydraulic system and a sensing means responsive to the position of a horizontal guide strand defining the position of the concrete curb to be extruded are connected with the hydraulic system through servo-mechanisms for guiding the tractor and maintaining the hopper and extruding channel in close spaced relation with the surface of a roadbed on which the concrete curb is to be extruded.
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Green Gary L.
Henderson John W.
Britts Ramon S.
Connolly Nancy P.
Rhea Robert K.
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