Get a turner to make for you a couple of wooden discs, 3/8 inch thick,
and having a diameter 2 inches greater than that of the tin. Holes at least
3/8 inch across should be bored in the centre of each. Cut holes 1 inch
across in the centre of the lid and the bottom of the canister, and nail
the lid concentrically to one disc, the canister itself to the other. Then
push the lid on the tin and solder them together. This gives you a large
reel. For the spindle you will require a piece of brass tubing or steel bar
1 foot long and large enough to make a hard driving fit with the holes in
the wood. Before driving it in, make a framework of 3/4-inch strip iron
(Fig. 123), 3/32 or 1/8 inch thick, for the reel to turn in. The width of
this framework is 1 inch greater than the length of the reel; its length is
twice the diameter of the canister. Rivet or solder the ends together.
Halfway along the sides bore holes to fit the spindle.
Make a mark 1 inch from one end of the spindle, a second l/8 inch farther
away from the first than the length of the reel. Drill 3/16-inch holes at
the marks.
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