252 Sloan's Architectural Review and Builders' Journal. [October, THE GAZETTE, HANGING SHEAVES FOR SLIDING DOORS. OUR friend, Mr. J. B. Shannon,* has very kindly furnished us with a handsome cut of two different sizes and as many styles of hanging sheaves, de- scribed as follows : No. 1 shows a sis-inch sheave, with hand-rail nut, suitable for a door three feet or over in width, and one and three- quarter inches or more in thickness. No. 2 gives a four-inch sheave, of the same style as No. 1, and intended for lighter doors than that just mentioned, in which, consequently, a lighter sheave than the six-inch may be used. No. 3 displays a six-inch sheave, with a flat frame, to be used where individuals object to boring the doors to admit the hand-rail pattern ; and, also, where ap- pearance is not a matter of great import. Where this form is used, the bar is let into the door flush, or level with the sur- face, and painted over. No. 4 exhibits a four-inch sheave, of the same fashion as No. 3. The frames are all made entirely of wronght-iron. The rail is a wrought-iron bar, two inches wide and one-quarter of an inch thick, dressed semi-cylindrically, or round on the upper edge, to fit the sheave, and drilled for screws, to fasten it on a horizontal piece of timber, which is at- tached to the studding. The sheaves may be made of " com- position," better known as "Prince's Metal," and run on a steel pin ; or, in a less expensive style, such as is gener- ally used, the sheaves are constructed
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