Abstract: A controller is for a vehicle wetting system including a fluid supply and a delivery line having an inlet connected with the supply and an outlet located to direct fluid onto a compacting drum. The controller includes a regulator configured to adjust a fluid flow rate through the outlet. A speed sensor connected with the vehicle senses vehicle speed. Further, a logic circuit connected with the sensor and the regulator automatically operates the regulator such that the regulator adjusts the flow rate to be generally proportional to the vehicle speed. Alternatively, the logic circuit permits flow through the outlet for a predetermined drum displacement and alternately interrupts flow for a predetermined period of time. The regulator is either a shunt line and a valve adjusting flow through the shunt line to adjust flow through the outlet or a pump regulator controlling flow from a pump in the delivery line.

Abstract: A controller is for a vehicle wetting system including a fluid supply and a delivery line having an inlet connected with the supply and an outlet located to direct fluid onto a compacting drum. The controller includes a regulator configured to adjust a fluid flow rate through the outlet. A speed sensor connected with the vehicle senses vehicle speed. Further, a logic circuit connected with the sensor and the regulator automatically operates the regulator such that the regulator adjusts the flow rate to be generally proportional to the vehicle speed. Alternatively, the logic circuit permits flow through the outlet for a predetermined drum displacement and alternately interrupts flow for a predetermined period of time. The regulator is either a shunt line and a valve adjusting flow through the shunt line to adjust flow through the outlet or a pump regulator controlling flow from a pump in the delivery line.

Abstract: The vibration compacting machine includes a frame, a leading drum and a trailing drum. The leading and trailing drums are rotatably mounted to the frame. The leading drum includes a first eccentric assembly that is rotatably mounted inside of the leading drum and the trailing drum includes a second eccentric assembly that is rotatably mounted inside the trailing drum. A first motor rotates the first eccentric assembly and a second motor rotates the second eccentric assembly. Rotations of the eccentric assemblies transfers vibrations to the drums to compact a ground surface. A control adjusts the speed of the first and second motor relative to one another to keep the first eccentric assembly from running in phase with the second eccentric assembly. The control also delays starting the second eccentric assembly relative to the first eccentric assembly to minimize horsepower drain on the engine of the vibration compacting machine.

Abstract: A vibratory compactor includes front and rear frame portions driven by a first hydraulic motor and a vibration mechanism on at least one of the frame portions also driven by a second hydraulic motor. A first sensor on the vehicle senses movement of a member on said vehicle driven by said first hydraulic motor, and sends corresponding signals to a microcontroller on the vehicle. A timing device sends timing signals to the microcontroller, which is programmed to convert the movement signals and timing signals to indicate longitudinal speed of travel of the vehicle. The microcontroller automatically turns a vibration means on the vehicle on or off depending on the speed of the vehicle. A second sensor on the vehicle sends a signal to the microcontroller indicating a reverse direction of travel of the vehicle. The microcontroller automatically coincides the direction of motion of the vibration means with the direction of travel of the vehicle.

Abstract: A process and apparatus for producing an aqueous solution of chlorine dioxide and chlorine wherein the likelihood of autodecomposition of chlorine dioxide is significantly reduced or practically eliminated and, in the unlikely event that such CLO.sub.2 autodecomposition occurs, it is quickly detected and the process is automatically corrected.

Abstract: A drum dehumidifying breather for a liquid chemical container including a desiccant cannister having a top wall, a cylindrical transparent side wall, and a removable bottom wall;the cannister containing a desiccant material;the cylindrical side wall having air breather holes located above the top level of the desiccant material for the passage of water-borne air into the cannister;the cylindrical side wall having a threaded portion which extends below the bottom wall;the bottom wall being capable of supporting the desiccant material and containing breather holes for the passage of dried air from the cannister;an annular removable cap having a threaded side wall which is capable of being attached and connected to the threaded portion of the side wall of the cannister;a supporting cylinder positioned in the annular opening of the cap; one end of the supporting cylinder being in communication with the bottom wall of the cannister and capable of supporting the bottom wall as well as containing breather holes to a

Abstract: A boiler blowdown monitoring system wherein the conductivity of the water in the boiler blowdown line is monitored to determine if it exceeds either a preset maximum or minimum level. The system includes a blowdown sensor, a blowdown valve, a blowdown controller and an interrogation means. The water conductivity is sensed by the sensor located on the blowdown line and transmitted to the interrogation means (e.g. microprocessor) through the boiler blowdown controller. If the sensor senses a water conductivity level above a preselected maximum conductivity level or below a preselected minimum conductivity level after a predetermined time period has passed since the boiler blowdown valve was opened, then an alarm signal is sent to the boiler operator.

Abstract: A chemical process monitoring system wherein both a chemical process parameter control means (e.g. standard water treatment controller) and the means for adjusting the controlled process parameter (e.g. chemical feed pump) are simultaneously monitored through an interrogation means (e.g. microprocessor to determine if the adjusting means is successfully responding to the control means; and, if not, an alarm signal is generated to the operator.

Abstract: Disclosed is a positive displacement pump output monitor which is employed by (a) passing the discharged fluid from said pump through a pulse receiving chamber, the pressure of said pumped fluid during the discharge stroke of the pump causing a diaphragm in said pulse receiving chamber to be moved outwardly by said fluid; (b) causing the outward concurrent movement of a spring-loaded metal shaft when the diaphragm is moved outwardly; (c) contacting a fixed element with said outwardly moved spring-loaded shaft, thereby causing a time-delayed relay connected to said fixed element to be reset; and (d) causing said time-delayed relay to send an alarm signal to an alarm annunciation means if said relay is not reset within a predetermined amount of time.

Abstract: Described is a mixing apparatus and its use in the hydration of liquid polymers. The apparatus includes two packed mixing columns, each having two reducing couplings attached thereto to form an inlet and an outlet to each column. The outlet of the first mixing column is connected to the inlet of the second mixing column via means of a reducing passageway. The apparatus also has sources of supply for liquid polymer and water connected to the inlet of the first mixing column through metering means and injection check means. The apparatus provides controlled mixing velocity during the hydration with non-shearing agitation and without a chemical buildup.

Abstract: Described is a mixing apparatus and its use in the hydration of liquid polymers. The apparatus includes two packed mixing columns, each having two reducing couplings attached thereto to form an inlet and an outlet to each column. The outlet of the first mixing column is connected to the inlet of the second mixing column via means of a reducing passageway. The apparatus also has sources of supply for liquid polymer and water connected to the inlet of the first mixing column through metering means and injection check means. The apparatus provides controlled mixing velocity during the hydration with non-shearing agitation and without a chemical buildup.

Abstract: An improved chemical generation apparatus particularly adapted to the generation of chlorine dioxide. This apparatus includes a generation vessel having at least two reducing couplings attached thereto by leak-proof joints thereby forming at least one inlet and at least one outlet to said vessel. The reducing couplings advantageously have surfaces which form an angle of at least 110.degree. with the vessel walls to create a geometry which prevents chemical buildup during operation of the apparatus. The apparatus also has sources of supply for each of the reactive materials connected to said inlet of the vessel though a metering means and an injection check valve.

Abstract: The present invention is directed to a chlorine dioxide generation apparatus and a method of generating chlorine dioxide using the apparatus. The novel apparatus includes a generation vessel having leak-inhibiting solvent weld joints with reducing couplings which form an inlet and outlet. The reducing couplings advantageously have surfaces which form an angle of at least 110.degree. with the vessel walls to create a geometry which prevents chemicals buildup during operation of the apparatus.