Читать книгу Practical Organ Building онлайн

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And now we proceed to our work. What we have to do is to make fifty-four pipes, extending from CC to F in alto, and of the form or sort known in England as Stopped Diapason. One of these pipes, let us suppose Tenor C, is shown in Fig. 1. a is a block of mahogany or oak, or of some other wood faced with mahogany or oak, and about 3 inches in length. It has a throat or deep depression across it, formed by taking out the wood between two saw-cuts, or by boring adjacent holes with a centre-bit. b is a stopper, made of any wood, the exact size of the block, or a trifle less, to allow for a leather covering, and fashioned at top into a knob, or turned in the lathe, for convenient handling by the tuner. c is the pipe when put together by gluing three boards, namely, the back and the two sides, to the block, and one, namely the front board, to the edges of the sides. This fourth board is about 3 inches shorter than the others, and has a lip formed on its lower edge by bevelling the wood with a sharp chisel. d is a cap, 3 inches long, and as wide as the block with the side boards attached; it is hollowed in a wedge-shaped form as shown in the figure. e is a foot, turned in the lathe, bored from end to end, and 5 or 6 inches in length. f is the completed pipe, with the stopper inserted, the cap put on, and the foot in its place.