438 Recollections of a Tour made in Mai/, 1839, 



only one eye for the hook to drop 

 into, the window can only be opened to 

 the same width, whether the ventilation 

 required be little or much ; and, when 

 the staybar is not in use, it hangs down, 

 and is blown about, and very frequently 

 breaks the glass. The new staybar, on 

 the other hand, opens the window or 

 door to which it may be applied to va- 

 rious widths at pleasure, from an inch 

 to the whole width of the window or 

 door, and the staybar can never hang 

 down, or run the slightest risk of break- 

 ing glass. The general appearance of 

 the new staybar, supposing the window 

 to be open to its full extent, is shown 

 in fig. 95., in which a is the staybar, 

 which turns on the pivot b at one end, 

 and slides along a horizontal groove 

 under the guide bar c at the other. 



Fig. 96. is a view of the staybar apart from the window, showing the eye 

 d, the handle e, and the stud f, which drops into holes in the horizontal 

 groove, so as to keep the window open at any desired angle. 







i 



i 



H 



Ijijl [ 



95 I^^P 



ill 

 . " ilB*J 



'r 1 



n 







d 



96 





{( — 



h 



=Tl 97 



<, , 







l 



fej 





k 



Is] 





\ cz 



O O 



=3) ) l 



Fig. 97. is a view of the groove and the guide-bar. g is the guide-bar 

 small rod which is for the purpose of keeping the staybar in its place in 

 groove k ; i i are two plates with holes, by which the groove and guide 

 are riveted to the window ; k, vertical profile of the groove, the guide 

 being removed, so as to show the holes into which the 

 stud of the staybar drops. The groove is of cast iron, and 

 the guiding rod is of wrought iron let into it and riveted, 

 and both are bolted to the bar of the window by means of 

 the plates i i, which are of cast iron. 



Fig. 98. is a section across the groove, the guiding rod ^^ 

 (I) and the bar of thewindow (m), to which the groove is bolted; n is 

 handle of the guide-bar. 



The window is cast in 

 two pieces; the larger (fig. 

 99.) being 2 ft. 10 in. high, 

 by 2 ft. 1 in. broad, and the 

 smaller (fig. 100.) being 

 1 ft. 4 in. high, by 1 ft. 

 broad, exclusive of the lead 

 along the bottom and sides, 

 which forms the rebate, 

 and covers the joint. In 

 casting the smaller win- 

 dow, it is essentially ne- 

 cessary that it be somewhat 

 less in dimensions than the 

 space into which it is to 

 shut, in order that it may 

 always move freely. The 

 air is kept out from the 



or 

 the 

 bar 

 bar 



100 



6 B 30 IZrn, 



