Slip-form curb and gutter machine

Road structure – process – or apparatus – Apparatus – With means for profile shaping – e.g. – crown

Patent

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Details

E01C 1128

Patent

active

042170656

ABSTRACT:
A slip-form machine for concrete curb and gutter includes a chassis having wheels adjustably mounted for guiding the machine along fixed straight or curved tracks. A concrete receiving hopper carriers a vibrator support unit adjustable linearly and pivotally about several axes. Interchangeable forms each attach to the chassis behind the hopper to receive concrete therefrom and have sidewalls extending downward below the wheels and substantially to the ground. A hand winch fixed above the hopper has cable guided out the forward lower hopper portion for advancing the machine and is energized by an operator standing on a chassis mounted platform above the form. A trowel is vertically adjustably fixed to the rear of the form and is separated from it by a substantially constant bubble escape gap. A reinforcing guide rod unit is releasably fixable to the lower front wall of the hopper.

REFERENCES:
patent: 2225015 (1940-12-01), Lebelle
patent: 2541547 (1951-02-01), Robinson
patent: 2623446 (1952-12-01), Clark
patent: 2707422 (1955-05-01), Canfield
patent: 2847916 (1958-08-01), Andrus
patent: 2950660 (1960-08-01), Standfuss
patent: 3108518 (1963-10-01), O'Connor
patent: 3161117 (1964-12-01), Supject
patent: 3164072 (1965-01-01), Blankenship
patent: 3261272 (1966-07-01), Jennings
patent: 3435740 (1969-04-01), McGall
patent: 3605581 (1971-09-01), Heaton
patent: 3779662 (1973-12-01), Smith
patent: 4027990 (1977-06-01), Merrill

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