Abstract: A sliding dump trailer that provides dumping, loading, and unloading functionality using mechanical manipulations. A bed frame is attached to a towing tongue using hinges, and one or more slide rails. The slide rails selectively engage and disengage with an axle frame. The bed frame is manipulated to a loading/unloading position by locking wheels on the axle frame, disengaging the axle frame from the slide rails, and pushing the tongue in a reverse direction, causing the slide rails to slide over the axle frame which, in turn, allows the bed frame to tilt over the hinges. Continuing to push the tongue in the reverse direction further tilts the bed frame to a dumping position. The bed frame is returned to a horizontal towing position by pulling the tongue in a forward direction.

Abstract: A sliding dump trailer that provides dumping, loading, and unloading functionality using mechanical manipulations. A bed frame is attached to a towing tongue using hinges, and one or more slide rails. The slide rails selectively engage and disengage with an axle frame. The bed frame is manipulated to a loading/unloading position by locking wheels on the axle frame, disengaging the axle frame from the slide rails, and pushing the tongue in a reverse direction, causing the slide rails to slide over the axle frame which, in turn, allows the bed frame to tilt over the hinges. Continuing to push the tongue in the reverse direction further tilts the bed frame to a dumping position. The bed frame is returned to a horizontal towing position by pulling the tongue in a forward direction.

Abstract: A poison resistant combustible gas sensing element, a method for its production and a method for determining poisoning of the element. The element includes an electric heating element, an inner layer coated on the electric heating element and containing a precious metal catalyst supported on a porous oxide, the precious metal catalyst catalyzing combustion of a combustible gas to be detected by the element, and an outer layer overlaying the first layer, and containing a catalytic compound capable of trapping gases which poison the precious metal catalyst, the catalytic compound being supported on a porous oxide.

Abstract: A reference electrode consisting of a metal in contact in contact with an electrolyte containing an anion or cation whose concentration in part determines the redox potential of the electrode? This electrolyte contains a polyelectrolyte that partially and reversibly binds this chemical cation or anion thus lowering the free concentration of the cation or anion compared to the osmotic pressure of the same concentration of cation or anion if present as a simple salt. The polyelectrolyte can be anionic or cationic depending on the chemistry of the redox electrode and a thickener may also be added to the electrolyte.

Abstract: An electrochemical sensor for corrosive gases that contains at least two electrodes is described. The presence of a target corrosive gas results in the formation of metal ions that can be reduced at an electrode producing an electrical current that depends on the instantaneous corrosive gas concentration and deposition of the metal on the electrode. Extension of this deposit to a second electrode through further deposition will result in a short circuit, the longer the time to the short circuit, the lower the cumulative corrosive gas concentration.