Fig. 200.—Bow and Stern Pieces.
The Bow and Stern Pieces (see [Fig. 200]).—The proper way of laying these out on the eight-inch plank is shown in [Fig. 201]. First cut the plank in half, and then place these two pieces side by side upon the floor or work-bench as shown in the drawing one piece upon which to draw the pattern, and the other upon which to locate the centre for drawing the curves. Then square the line AB across the planks, and locate the points D and E on either side of it, by means of the measurements given upon the drawing. The most satisfactory scheme for
Drawing the Curves is with a piece of cord, to one end of which a pencil has been tied (see [Fig. 201]). With this as your compass, hold the end of the cord at D for a centre, and with a radius of ten and one-quarter inches strike an arc cutting the line AB as at C. C is now the required centre for drawing the curves. Drive a small nail into the plank at C, and wind the end of the compass cord around it until the correct length of radius is obtained (see drawing). Describe the arc DE with a radius equal to CD, or ten and one-quarter inches.
Fig. 201.
Then with a ruler lay off along the line AB the distances for the other arcs, as shown in the drawing. FG will be two inches from DE, HI an inch and one-half from FG, and JK an inch and one-quarter from HI. Having located these points and described the arcs, draw the lines CD and CE, extending them so as to cut off the arcs, as in the drawing. At the upper end of the pattern draw the line LM one inch from and parallel to FD. With a radius of an inch and three-quarters and the centre N describe an arc as shown in the drawing. At the lower end of the pattern draw the line OP two inches from and parallel to GK, and the line QR one inch from and parallel to PK. Having carefully drawn out this pattern, turn over the plank and draw the same thing upon it, locating the points exactly opposite one another, by squaring lines across the sides and edge. Prepare the other piece of plank similarly. To cut out the patterns, place them in the vise of your work-bench, one at a time, and rabbet the surfaces between DE and FG, and FG and HI, as shown in the section drawing, [Fig. 202]. This done reverse the piece and do the same to that side. When these surfaces have been trued up carefully, remove the piece from the vise and saw the pattern from it. In doing this, first saw along the lines DJ and EK, and cut out the corners FLMD and PQRK. Then follow roughly the curves of lines DE and JP, after which place the work in the vise and trim them off nicely with a draw-knife, rounding the outer curve as shown in [Fig. 202]. The portion OQRG should be cut down to a plain surface as shown in [Fig. 200].