Abstract: A lubrication system thermostat for controlling the flow of oil in a lubrication system includes a valve and an actuator. The valve is configured to modulate between an unmodulated position and a modulated position, each of which may be in an open position or a closed position. In the open position, at least a portion of the oil flow is unobstructed, and in the closed position, the oil flow is substantially blocked. The actuator is configured to modulate the valve. The actuator includes a thermal element configured to generate mechanical displacement when subjected to a temperature change such that the valve is movable from and returnable to the unmodulated position. The lubrication system thermostat may be in a normally-open configuration, in which the unmodulated position is the open position, or a normally-closed configuration, in which the unmodulated position is the closed position.

Abstract: A drive for powering an agitator in a chemical process vessel may be located inside a housing attached to the vessel and may have a motor that drives a shaft that is attached to an agitator assembly inside the vessel. The shaft may pass into the vessel through a floor in the housing, which may be provided with a standpipe to prevent the flow of fluid on the floor into the vessel. A shield attached to the shaft may be provided above the standpipe to prevent fluid from entering the standpipe from above. In addition, a sump may be provided to allow effective lubrication and cooling for bearings that support the shaft.

Abstract: A hydraulically operated motor may be located in an atmosphere having substantially high and varying pressure. The motor may be provided with conduits that are in fluid communication with cavities adjacent to the motor bearings, so that fluid in the conduits may lubricate the bearings. Lubricating fluid may be introduced to the conduits across an air gap that is in the atmosphere having substantially high and varying pressure, and the fluid may thereby pass through and lubricate the bearings.

Abstract: A passive lubrication system for bearings of a kind such as an evaporative cooler. The system has a container having a lid which contains oil. A delivery tube depends into the oil. The tube extends to the lubrication site and preferably one or more coils are formed in the tube. Oil will be slowly drawn through the tube and coils without additional pumping energy being required.

Abstract: An automatic device for replenishing the liquid oil and the like is composed of an oil container, a cap, an oil injecting seat, an oil blocking body, and a connection seat. The oil container is provided at the bottom thereof with a joint fastened therewith rotatably. The oil injecting is located in the joint and is provided at the bottom thereof with a cut. The connection seat is fastened at the top end thereof with the joint. When the oil consumption has reached an extent that the cut of the oil injecting seat and the oil level surface form therebetween a gap, the atmospheric air is drawn into the connection seat through which the atmospheric air flows into the joint via the gap, thereby resulting in an automatic replenishing of the oil. As soon as the gap is eliminated, the atmospheric air is kept out of the connection seat so as to bring about an end to the replenishing process of oil.

Abstract: An automatic oiling device for delivering oil to a bearing comprising a sealable container defining a reservoir for oil with a opening in which a hollow tube is fitted. One end of the hollow tube communicates with the interior of the sealable container and the other end is open. Wicking material is located in the hollow tube and extends into the interior of the sealable container at one end and extends from the other open end of the hollow tube for contact with a bearing to be oiled. The hollow tube and the wicking material co-operating to function as an automatic valve to release oil from the sealable container as needed by the bearing. The wicking material is packed into the hollow tube to a density sufficient to allow for an automatic valving cycle that controls the flow of oil.