Page:Cassells' Carpentry and Joinery.djvu/251

Rh Fig. 781. — Portion of Back View of Stand to seat 1,000 Persons.

and wedged;, post halved on to raking strut; , rail halved to centre posts.

The stand is 70 ft. long, and will contain twenty rows of seats, which are 18 in. high and 22 in. wide. The principals, which will be nine in number, equally spaced, are framed together, as shown, with cross and raking braces. The cross braces are shown in Fig. 781, in which the opening marked will occur between each pair of principals, and also between the intermediate principals situated nearer the centre of stand, which are cut in between in the same manner and bolted to the uprights. The other braces shown in the back view will be fixed on the raking strut in Fig. 780. Where a stand is fixed between two walls, no side struts are required; but when it is fixed in the open, good strong raking struts are wanted at each end, firmly secured to the raking beam with bolts. The timber throughout should be of the soundest. The raking beam and the uprights should be 11 in. by 4 in.; the braces may be 9 in. by 4 in.; sole pieces, 9 in. by 4 in.; framed bearers, 4 in. by 4 in.; seats, two 11-in. by 3-in. planks, well spiked to bearers. The timbering at the back is run up to prevent spectators from falling, and an awning can be fixed to it. The handrail newels are bolted to the side of the raking beam. A similar but smaller structure, might be made to provide more comfortable seating accommodation, the seats being 26 in. instead of 22 in., thus giving more room for the feet.