A pan whose sides are square or tapered may have its corner formed by a double flap, as shown in Fig. 66. This is no stronger than the single flap (Fig. 62), but gives a little better appearance to the pan, and is more conveniently made by machinery.
The setting out of the pattern is very similar to Fig. 64. The overhang DC (Fig. 66) is first measured down and the angle A O C divided into four equal angles by dividing the arc K M into four equal parts and drawing the lines O N,
O B and O F. The length O B is next cut off equal to O C. The compasses are then fixed at O, stretched out to D, and the arc D E drawn; the point E being determined by cutting off C E (as shown by the arc D P E) equal to C D. A straight line is drawn from C to E, and where this intersects the line O F will give the point H. To finish, the line O R is made equal in length to O H.
For a pan with unequal tapering sides the construction would be a little different, but from what has been said in connection with Fig. 65 there should be no difficulty over this.