^46 IPIRE ON A NEW CONSTRUCTrON. 



The pedestal. The plan of the pedestal, the top anrl bottom of which 

 are similar, is represented at fi<T. 2, where 1, ■2, 3, 4, &c. are 

 the bottoms of the eight jambs, or uprights, of the pedestal; 

 and W W, &c. the wheels, or rollers. 



A section of th#» pedestal, fig. 6, is drawn in the inside of 

 the section of the tower. 



h h, cross braces. 

 Th^ spjre. D 1^ the base, or lower diaphragm, of the spire, resting 



on the pedestal, to which it is attached by four bolts (of 

 ■which two only are seen in the section) vvith' forelocks, F F, 

 $0 as to be easily detached from each other, . r 



L L L L, the legs of tlie spire, 



D D, the diaphragms. 



S> the spindle of the weathercock, passing through the 

 apex of the spire. 



C, a conical collar, or ring, enclosing the top of the legs, 

 A shoulder is formed on the sjundle, and rests on this ring; 

 and as the collar, or ring, projects a little qbove the tops of 

 th^legs of the spire, it could be forced downwards, till the 

 shoulder touches the tops of all the legs, which are cut even, 

 ■ and horizontal at top, so as to permit the collar, the legs of 

 tile spire, and the spindle, to be firmly bound ■ togetlver. 

 Thk is done by means of a mortice, or keyhole, formed In 

 the lower part of the spindle which passes through the small 

 solid diaphragm d, against which it is wedged by the fore- 

 lock /. 

 Method nf fas- The heels of all the bars, with the tenon at B, fig. 4, 



temng the (where it is drawn upon a larger scale) pass throu^jh consols, 



spire m its * ^ . " 



place on the XX, fig. 1, of stone capped with cast iron, that project 



tower. from the wall of the tower. The iron cappings of these 



consols, fig. 8, are made of cast iron, and have apertures 



left in them, through which the heels of the bafs, which 



form the spire, may pass. When they have all been raised 



through the consols, eight washers, fig. 9, with a mortice, 



nii in ^he centre of each of them, are laid upon the consols, 



hnd, the spire being allowed to descend, the tenons in the 



heels of the bars fall into the mortices, and rest upon the 



consols, and eight other washers are placed upon the tenons, 



under 1 he consols beneath which they are keyed by forelocks, 



T T> fig' 1> the walls of the tower. 



WW 



