Fig. 5a.—To go round ‘middle-box.’
Fig. 6.
Fig. 7.
Fig. 8.
Make another similar to this for the other side; the same shaped card will do, all that you need alter is the V groove, which must be on the reverse side of the card to enable you to fold it so as to make a pair—right and left-handed. When dry, paint ‘chrome-green,’ edge with black, and gum in position one on each side of the back ‘over-raise-up,’ to which they should exactly fit. [Fig. 8] shows them in position marked b. The next thing to do is to make ‘MIDDLE-BOXES.’ They are two in number, and are placed, one on each side, exactly in the middle of the boiler, as marked a in [Fig. 8]. Medium thickness is required. Describe a circle, with radius one inch; within and concentric describe a second with radius seven-eighths of an inch, and a third concentric with radius three-eighths of an inch; divide this into two equal parts by the line A B, [Fig. 7]. Between the two inner circles draw radiating spokes, as in [Fig. 7]. Cut out the shaded parts neatly with a sharp knife. Cut through the line A B to divide into two parts. Now prepare two pieces of card shaped something like [Fig. 5a]; and the length must be sufficient to reach from A to B round the outer circle in [Fig. 7], the curve being made to fit nicely to the boiler, as marked c in [Fig. 8]. Gum these to the middle-boxes, and, when dry, paint ‘chrome-green,’ edged with black; gum middle-boxes in their places on the boiler. In the centre of the front ‘raise-up’ gum a circular piece of thin card (radius three-quarters of an inch)—this represents soot-door; a pin, with head and point cut off, gummed on the left side with two narrow strips of card from the pin to beyond the circle as annexed will form the hinges; two other pieces of pin, as [shown] on the side opposite to the hinges, form the handles.
Half-size.