io6 BEEHIVES AND BEE KEEPERS' APPLIANCES. 



B.W.S., 6f in. by 4| in. wired all round with thin 

 wire. The wiring is easily done by first cutting 

 small pieces off the corners of the tin, then turn- 

 ing up the edges all round, laying the wire in the 

 edges, and then hammering down so as completely 

 to cover the wire, and leave a nicely formed bead. 

 The hand-guard is bent to a semicircle. 



The support is made of a strip of tinplate 

 7J in. long and If in. wide. Lines must be scribed 

 on one surface f in. from each edge, thus marking 

 it into three parts, the centre one being J in. wide. 

 At If in. from one end, and at Ij in. from the 

 other, nick the sides into the lines, and turn over 



Fig. 97. Smoker Diaphragm. 



the edges of the end pieces, thus doubling the tin 

 at the ends and making them only J in. wide. The 

 centre must also have its edges turned up, but 

 only at right angles, to the middle part, thus 

 making a sort of trough which will fit on the 

 piece of wood s (Fig. 95) nailed to the bellows board. 

 The ends of this piece of tinplate are now turned 

 up in the opposite direction to the trough, the 

 short one at right angles, and the longer one at 

 an angle of 135 with the middle part. This last 

 end is to be bent again, a little more than 1 in. 

 from the first bend, so as to lie parallel to the 

 centre part. 



For riveting these parts together, obtain four 

 rivets i in. thick and J in. long. One rivet con- 



