Abstract:
A conveyor has a belt arranged to be urged around conveyor rollers, and a belt cover formed of an endless loop of fabric material and is in frictional communication over the belt. The belt cover is formed of two plies that are arranged to be adhered to one another in an edge region of the belt cover. The communication between the belt cover and the belt has a coefficient of friction of ˜0.50. A message is printed on the outer ply of the belt cover. In addition, an antimicrobial material is disposed on the belt cover, and is formed of silver nanoparticles embedded in a polyurethane film having a thickness of ˜0.5 mil.
Abstract:
A vehicle chassis with at least two fuel tanks with an engine engaged to the chassis structural member. Each of the fuel tanks has fuel level detector or sender. The level senders are engaged to an electronic controller. Each of the tanks has fuel draw line from it. The system uses a single control valve to equalize the fuel tank levels by use of a dual draw single return system. The system is split into a primary and secondary tank. The fuel level senders send information to an electronic controller generating a signal to the solenoid or control valve when a specific fuel level difference exists. Activating the solenoid or control valve from closed to open, located in the draw side fuel line from the secondary tank, fuel is drawn from both tanks. The return goes only to the primary tank. When the levels are equalized, the electronic controller sends signal to the control valve to close.
Abstract:
A method and a device for the detection of trinitrotoluene (TNT) in efflu water from the purification apparatus of ammunition plants is described. The tube detector utilizes a basic oxide section to convert the TNT to its Meisenheimer anions, followed by an alkyl quaternary ammonium chloride ion-exchange resin which collects the colored anions. The length of the resultant stain is proportional to the concentration of TNT in the water.
Abstract:
An apparatus for the disposal of solid rocket motors which produce exhaustases containing flammable and/or explosive products. The solid rocket motor to be burned is first detachably connected to and inserted in one end of an elongated mixing chamber which has, at an opposite end, a multi-step expansion nozzle. The rocket motor is then ignited and the exhaust gas is passed into the mixing chamber, which is sufficiently large to reduce the velocity of exhaust gases from supersonic to subsonic. Air is injected into the mixing chamber to react with flammable and/or explosive products in the exhaust gases and the resultant mixture is then discharged from the mixing chamber through a multi-step expansion nozzle to expand the gaseous mixture and, at the same time, produce substantial turbulence within the gas mixture which is about six times higher than the turbulence levels produced by a constant area circular nozzle. The expansion nozzle has an inner wall with a stair-step shaped surface, having an aspect ratio of not less than 2 and not greater than 10, to create the increased turbulence levels within the multistep nozzle.
Abstract:
To hold pipettes during autoclaving, an autoclavable pipette jar made of stainless steel has the general form of a closed cylindrical container with a flat generally disc-shaped base on one end and a flat top on the other end. Adjacent to the top is an opening in a portion of the curved wall to permit receiving and removing of the pipettes. One side of the generally disc-shaped base is cut away to form a straight resting surface. Also disclosed is a method of autoclaving the pipette jar with pipettes in it for sterilization.