Abstract: A system for remotely sensing a low level of a fluid in a tank, such as the low level of oil in an internal combustion engine. A sensing tube projects through a housing defining an oil reservoir therein, which sensing tube is disposed with its open lower end positioned at an elevation which defines the low or add level for the oil. The sensing tube has its upper outer end connected through a suitable conduit to a remotely located actuator. The actuator, preferably manually actuated, transmits a determined mass of air through the conduit means into the sensing tube. A visual indicator senses changes in pressure within the sensing tube. When the lower end of the sensing tube is immersed in oil, the mass of air supplied to the system effects a pressure increase which is recorded on the indicator, thus indicating that the oil level in the reservoir is above the low or add level.

Abstract: A mold handling system and method wherein cars are moved along a closed vertical loop. A first elevator positions an empty car adjacent a mold-supply conveyor, whereupon a mold is pushed onto the car, after which the car is transferred into a pre-pour mold storage. The mold-bearing car is then moved onto a second elevator which lifts the car upwardly adjacent an elevated pouring deck. As the mold is elevated, a jacket and weight are automatically deposited thereon, and the mold is poured while the car rests on the second elevator. The mold-bearing car is then moved forwardly through a jacket-and-weight transfer station, after which the jacket and weight are automatically removed and recycled back for positioning on another mold arriving on the second elevator. The mold-bearing car is moved through a cooling region, and this is then transferred onto a third elevator which is tiltable so that the mold is dumped from the car.