Page:Popular Science Monthly Volume 88.djvu/796

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��Popular Science Monthly

��practice is to cover the decks with canvas. The canvas may be laid in glue or wet paint, the former being by far the better method. Procure a can of soft, black marine glue and brush it on the deck with an old stubby paint

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Fig. 7. Rudder details

brush. The glue comes in the form of althick paste, and will be found too stiff to brush evenly, but spread it as evenly as possible. Now lay the fitted canvas in place and with a moderately hot flat iron, iron the canvas until the melted glue sweats through to the surface. Now pull the edges of the canvas over the sides and tack to the edge of sideboards with copper tacks, spaced close to- gether. Tack the inside edge of canvas neatly to the lower edge of coaming. It is better to use a one-piece deck covering, but it may be pieced by lapping one edge over another about an inch, and gluing in place. Do not use tacks anywhere on the deck.

The row of tacks on the outside edge is covered by screwing on the 2-in. half-round molding which forms a fender-wale. Ta- per this at bow and stern to make aneatappearance. The tacked inside edge is similarly covered by screwing a 3^-in. quarter-round molding around the coaming. On the outside of the coaming, about i8 ins. aft of the mid- dle seat, screw an oar-lock block (made of oak or ash), to both the coaming and the deck.

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��Several types of rudders may be used, but the outside transom form of rudder is preferable to the form using a rubber port. Such a rudder is easily made as shown in Fig. 7.

{To he concluded)

Rounding Washers in a Speed Lathe

ROUNDING the edges of washers in large quantities may be accom- plished on a speed lathe, by means of an arrangement such as shown in the dia- grams. The washer A, V'lg. i, is floated on two pins placed on the face of the piece B, Fig. 2, which is made to fit into the headstock spindle. The central hole in the washer must fit snugly over the pin D. The pin E engages with one of the four other holes, but it need not fit tightly.

Fastened in a socket held in the tail- stock spindle, is a piece of copper F, Fig. 2, being drilled out to clear the pin

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��Fig. 8. Detail of decking

��Fitting for rounding washers on a lathe

D. When the washer is in position, the copper end is brought into contact with it, keeping it in place.

The tool G is used in actually rounding the edges of the washer. Every washer is put on and taken ofT without stopping the machine. Care must be taken that no chips get between the washers and the face of the arbor, since this will make a bevel on one side and ruin the work. — C. Anderson.

Improving Automobile Springs

MANY lightly-built cars of the Ford class will ride more easily if the body springs are taken apart and sent to a polishing shop to be polished off. Here they are first given a rough brush- ing with a coarse carborundum wheel, after which they are polished to a bright luster, greased, and colored. After this treatment, the springs should be kept lubricated, and they will be found to work very smoothly. — R. W. Tillotson.

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