Abstract: A “zero turn radius” batch cart for delivering loads of raw concrete mix over difficult and uneven construction job sites transports a tiltable, load-receptive hopper displaceable between load bearing and load discharging positions. The rigid chassis is supported by front, hydraulically powered drive wheel assemblies and a pair of rear caster wheels for steering effects. An internal combustion engine, with its own throttle control, drives a hydraulic pump that powers separate hydraulic motors and valves for operating the cart. The front-mounted drive wheel assemblies are independently, hydraulically driven and each can be rotated forwardly or rearwardly independently of the other. Quick and precise zero-turn radius steering movements will result when the front wheel assemblies rotate in different directions, in combination with the caster rear wheel assemblies that exhibit negative caster.

Abstract: An electrically powered, self-propelled cart for safely delivering heavy loads, such as concrete, within job sites with unlevel, irregular, or sloped terrain. A cargo bucket is tiltable over front drive wheels for transporting and dumping cargo. Electric drive motors associated with a transaxle propel wheels at a selectable speed in response to an electric control module. A steering column rotates in response to manually operated handle bars and activates a sensor to generate signals delivered to the control module for throttle adjustments. The sensor may be a linear potentiometer, a rotary differential transformer or a rotary encoder or shaft encoder measuring angular displacement. Extreme steering displacements will electrically reduce cart speed notwithstanding the previous speed setting chosen by the operator through the steering column.

Abstract: A concrete finishing and forming machine adapted for rail trackbed deck construction accommodates various plinths and channels needed for light rail construction. The adjustably configurable machine comprises a rigid frame disposed above a deck by vertically upright, adjustable jack stands supported at their bottoms by wheeled, powered bogies adapted to traverse upon suitable rails on opposite sides of the deck. The jack-stands may be connected to supporting swing arms that extend from pivot sleeves enabling the jack stands to angularly swing out from the frame. A slidable carriage that is longitudinally displaceable within the frame supports at least one downwardly extending, vertically adjustable paving head having a tool that, when immersed within wet concrete and then horizontally displaced, strikes off elongated, smoothed channels resembling pathways upon the concrete.

Abstract: An electrically powered, self-propelled cart for safely delivering heavy loads, such as concrete, within job sites with unlevel, irregular, or sloped terrain. A cargo bucket is tiltable over front drive wheels for transporting and dumping cargo. Electric drive motors associated with a transaxle propel wheels at a selectable speed in response to an electric control module. A steering column rotates in response to manually operated handle bars and activates a sensor to generate signals delivered to the control module for throttle adjustments. The sensor may be a linear potentiometer, a rotary differential transformer or a rotary encoder or shaft encoder measuring angular displacement. Extreme steering displacements will electrically reduce cart speed notwithstanding the previous speed setting chosen by the operator through the steering column.

Abstract: A concrete finishing and forming machine adapted for rail trackbed deck construction accommodates various plinths and channels needed for light rail construction. The adjustably configurable machine comprises a rigid frame disposed above a deck by vertically upright, adjustable jack stands supported at their bottoms by wheeled, powered bogies adapted to traverse upon suitable rails on opposite sides of the deck. The jack-stands may be connected to supporting swing arms that extend from pivot sleeves enabling to angularly swing out from the frame. A slidable carriage that is longitudinally displaceable within the frame supports at least one downwardly extending, vertically adjustable paving head having a tool that, when immersed within wet concrete and then horizontally displaced, strikes off elongated, smoothed channels resembling pathways upon the concrete.