474 O n th e Construction of Kitchen 



in thickness, projecting before the vertical front of the 

 brick-work. 



/, m, n, o, represents a horizontal section of this cast 

 iron door-way. The brick-work in which it is set is 

 distinguished by diagonal lines. 



k is the passage leading to the fire-place: it is 6 

 inches wide in the clear from m to n, 5 inches high, 

 and 6 inches long, measured from the inside of the 

 inside door, when it is shut, to the hither ends of the 

 openings between the iron bars of the fire-place, through 

 which openings the air comes up from the ash-pit into 

 the fire-place. The hither ends of these bars (five in 

 number) are represented in the figure. They are each 

 distinguished by the letter i. The opening of the in- 

 side door-way is 6 inches wide and 5 inches high in 

 the clear; and the door itself is 6| inches wide and 

 52 inches high. 



The outside door-way is 10 inches wide and 9 inches 

 high in the clear ; and the door, which is about T 2 7 of 

 an inch in thickness, is iol inches wide and 9^- high. 

 The extreme width of the door-frame to the outward 

 edge of the flange is 1 2\ inches, and its extreme height 

 is 1 1 inches. 



The two straps of iron to which the hooks of the 

 hinges of the outside door are fastened pass through 

 two holes in the flange, provided for them in casting 

 the door-way, and are riveted to the sloping side of 

 the door-way on the left-hand side of it. 



These holes are each | of an inch in length from top 

 to bottom, and about i of an inch in width. There is 

 another similar hole in the flange on the opposite side 

 of the door-way, through which a strap of iron passes, 

 the end of which projecting forward before the level of 



