Knives are sharpened at an angle on both sides, and will therefore have one side rubbed on the stone a few times and will then be turned over to rub the other side.
Pen-knives can be sharpened on the ordinary kitchen knifeboard.
[CHAPTER II]
CAPSTAN, DREADNOUGHT, LINER
Fig. 280
Saw a square piece of wood, side 4-1/3 inches, A B C D (Fig. 280). Cut two others, sides 2½ inches. Saw the corners of these and make them octagons.[1] Drill a hole through the centre of E (Fig. 281). Into this hole glue a wooden meat skewer or round rod that will pass through the hole of a large reel. Glue and nail E to A B C D. Round the sides of F (Fig. 280) drill eight holes about ¼ inch deep. Make levers of wood to fit these holes as in Fig. 280. Match sticks could be used. Now glue F to the top of the reel, G, taking care that the centre of F is over the centre of the reel. Place the reel over the axle, round which it can be turned. The capstan can be used for dragging along a toy boat by means of a string tied to the boat and wound round the reel.
[1] To make an octagon from a square A B C D. Draw A D and B C (Fig. 282). With centre C and radius C O mark points E and K, with centre D and same radius mark M and G, and so on. Join E F, G H, J K, etc.
