ANSWER:Watch this video: http://www.youtube.com/watch?v=EXfzQla0D_E
a spoolcase is something that you use in sewing or when you sew you put the spool into a spoolcase but you must make sure the spool is filled up with thread then you can start sewing only if you have a long piece of thread in the spool!!
Spool pins are used on sewing machines to hold the spool of thread. Most or vertical, some that are horizontal use a spool cap to secure the spool of thread. Some machine come with spool nets to cover the spool to ensure the thread enter the machine evenly. Some machines come with an extra spool pin that fits into a small hole on the top of the machine to hold a second spool of thread.
It depends on the bolt and valve. Spool valve is quiet but less air efficient. Poppet valves with a ram are much louder but more air efficient.
Most use valves, but a slide version does exist.
The use of the valves in the heart is to have blood flow regularly through the heart. The valves pump blood out of the heart into the body.
A spool of thread is very cheap. Spools of thread can be as cheap as a dollar or less a spool.
Emma Spool was created in 1982.
That spool is just the right size for my project.
A real reel is a genuine spool.
If you are talking about a diff. A mini spool replaces the planetary gears in the diff centre. A full spool replaces the whole centre except the crown wheel.
Jared Spool was born on 1960-12-08.