BORING, in a general sense, the art of perforating, or making a hole through any solid body.
BORING of Water-pipes. The method of boring water-pipes is as follows. The poles of alder, which is a very useful wood in making pumps, water-pipes, &c. being laid on horses or trusses of a foot height, to rest the augre upon while they are boring, they set up a lath to turn the least end of the poles, to fit them to the cavities of the great end of the others. They turn the small ends of the poles about five or six inches in length, to the size they intend to bore the bigger ends about the same depth, viz. five or six inches. This is designed to make a joint to shut each pair of poles together, the concave part being the female part, and the other the male of the joint. In turning the male part, they turn a channel in it, or a small groove at a certain distance from the end; and in the female part they bore a small hole to fit over this channel. This being done, they bore the poles through; and to prevent them from boring out at the side, they stick great nails at each end to be a guide in boring. It is usual, however,
Boring however, to bore them at both ends, so that if a pole
Borneo. ||
Borneo. however, to bore them at both ends, so that if a pole
be crooked one way, they can bore it through and not
spoil it.