Abstract: A platform receives at least two water bottles. A handtruck is configured to engage under a water bottle on the platform and carry it to the dispensing cabinet. In the handtruck, the water bottle is tilted so that the lowest corner of the bottle is directly below its neck. The handtruck engages and locks into the cabinet with the water bottle in proper, tilted position. A suction tube is dropped straight down into the bottle so that it reaches the lowest corner of the bottle. The suction tube carries a pump and discharge spout so that actuation of the pump causes dispensing of water.

Abstract: This invention is directed to a self-locking machine screw which includes a recess in the body of the machine screw extending from the end of the machine screw and interrupting the outer surface as slots. The slots join the recess. A resilient locking member having threaded fingers is inserted into the recess with the fingers in the slots. The locking member extends outward from the machine screw thread surfaces so that the threaded fingers must be deflected when the machine screw is screwed into a threaded opening in machine structure to lock the machine screw in position.

Abstract: A machine screw has a recess in its body extending from the threaded end into the body. The recess intersects the threads. A tang slot extends across the end of the machine screw body. A locking member is in the recess and the tang of the locking member is in the tang slot. The locking member includes a spring which extends into the thread space so that, when the machine screw is screwed into a threaded part, the spring is deflected by the threaded part to releasably lock the machine screw in place.