the thing (wheel) on which you wind the film befor transport, storage of projecting
(Skillworks: Reel
reel
The word "spool" can function as a noun or a verb. It is a noun when referring to the object that holds thread, wire, or film, and a verb when describing the act of winding or unwinding thread onto a spool.
A cartridge is a container that holds a spool of the photographing film or some quantity of ink.
It depends on the camera, but on most of them you open the back by pulling up the rewind crank or flipping a lever, put the film in the film well, push the rewind crank down into the film spool, pull the leader across...here it gets different: manual focus cameras make you put the end of the leader into a slot in the takeup spool, and autofocus cameras have you draw it to a mark and the camera attaches it to the spool...then you close the back and advance the film two or three frames. Leica M's were different: you took off the baseplate and put the film in from the bottom.
After rewinding the film, you can open the camera and take out the spool in a darkened corner of the room.
First release hinged back panel. Then holding camera with open back facing towards you, pull spool winding knob out away from camera. This releases film holder. Pull out, drop roll of film in top of film holder. Gently unroll film & pull over rollers located top & bottom of film holder. Then insert end of film in slot in spool. Slightly rotate spool to put film in slight tension. Replace assembly back into camera & push winding knob in. Before closing back of camera, rotate winding knob to make sure film is winding on correctly. Then close camera back. Job done!
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.
FILM!
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.