As weâve demonstrated, you donât need anything but a pot, water, eggs and ice to make boiled eggs, but there are a few egg-related contraptions out there that vary in their degree of usefulness. Egg cups: If you eat soft-boiled eggs often, a handy egg cup might be a great addition to your cupboard. They arenât too expensive and make it much easier to dunk your toast in a gooey yolk. Plus, they make every breakfast feel fancy!
spool. 1  any cylindrical piece or device on which something is wound. 2  a small cylindrical piece of wood or other material on which yarn is wound in spinning, for use in weaving; a bobbin.
Spool Valve. Fluid flow in and out of the hydro-boost is controlled by what is known as a spool valve. Spool valves are used in a variety of hydraulic components, such as the valve body of an automatic transmission. A spool valve is basically a hollow cylinder with a number of rings machined into it (see Figure 2).