Mechanick Exercises, or the Doctrine of Handy-Works

The back of the forge original: "Forge." is built upright to the top of the ceiling and is enclosed over the fireplace with a hood original: "Hovel." In this context, a canopy or cover used to direct smoke., which ends in a chimney to carry away the smoke, as shown at B. In the back of the forge against the fireplace, a thick iron plate is fixed, containing a tapered pipe about five inches long called a tuyere original: "Tewel" or "Tewel-Iron." The nozzle through which air is forced into the fire., marked with a *. This pipe passes through the back of the forge, as shown at C. The nose or pipe of the bellows is placed into this tapered pipe or tuyere. The purpose original: "Office." of this tuyere is simply to protect the pipe of the bellows and the back of the forge near the fireplace from burning.

Directly opposite the back, at a distance of about twenty inches or two feet, the trough Used for holding water to quench iron. is placed. It usually extends across the entire width of the forge and is as wide and deep as you prefer, as shown at D. The bellows is placed behind the back of the forge and has its pipe fitted into the pipe of the tuyere, as previously mentioned. One of its boards is fixed so that it does not move up or down. At the ear A projecting lug or attachment point. of the upper bellows board, a rope—or sometimes a leather thong, an iron chain, or a rod (labeled E)—is fastened. This reaches up to the rocker and is attached there to the far end of the handle, as shown at F. This handle is fastened across a rocker-arm original: "Rock-staff.", which moves between two supports original: "Cheeks." upon pivot pins original: "Center-pins." in two sockets, as shown at G. By pulling down this handle, the moving board of the bellows rises; then, by a heavy weight placed on top of its upper board, it sinks down again. Through this repeated motion original: "Agitation.", it performs the function of a pair of bellows.

Of the Anvil.

I have included the shape of a blacksmith's anvil in this illustration, although it is sometimes made with a horn or beak original: "Pike," "Bickern," or "Beak-iron." These terms refer to the tapered, pointed end of the anvil used for shaping curved work. at one end. I will show you the use of this when I discuss rounded, hollow work. Its face must be very flat and smooth, without flaws,