Figure [123] illustrates a dome shaped canopy supported by a molded cornice, and is more simple of construction than at first appears; the molded cornice needs no further explanation than the front view, Figure [123], and the side view, Figure [123A].
The construction of the dome can easily be followed by Figures [123B] and 123 C; a light hardwood circular frame is first marked at intervals around the outer edge where the ribs are desired to be, and a number of straight iron wires about one-eighth of an inch in diameter are inserted by boring holes in the edge of the frame, driving in the wires as C, in 123 D, after which tacks are driven in beside the holes to swell the fibres of the wood against the wire, and the wires bent upright as A and B of this illustration. Each separate wire is bent to take the shape of the rib, and all are fastened at the centre temporarily; when all are thus fastened, commence winding the three wires composing each rib, binding them solidly together with soft twine continuing to the centre, then turn the wires sharply aside, in line with the next rib, to which the ends are then bound, and the winding repeated on each rib.
Fig 118
Fig 122
Fig 122A
Fig 123A