132 BEEHIVES AND BEE KEEPERS' APPLIANCES. 



bar is \\ in. by f in. long enough to reach across 

 with holes drilled for bolts, and one for spindle 

 to pass through. A plain short crank handle does 

 for driving, it being the simplest and cheapest. 



The two wires shown crossing each other in 

 Fig. 1,7 (p. 123) should receive attention. They 

 are to prevent the network from bulging, and are 

 \ in. thick, fastened with solder to the framework 

 at their ends, and to each other in the middle. 

 The outer wire should be bent at the point of 

 juncture, so as to be flat against the network ; 

 otherwise, it would be of very little use. 



If it is decided to use gearing wheels as shown 

 in Fig. 115, they can be bought cheaply. The pinion 



Fig. 124. Bolt for Cross-bar. 



tits the spindle, and is keyed to it, and the toothed 

 wheel works on a stud riveted to the cross-bar. 

 The cross-bar would, in this case, require to be 

 somewhat stronger say, \ in. thick. 



The extractor is finished by the addition of a 

 couple of handles riveted to the sides, and covers, 

 of which there are two, one at each side of the 

 cross-bar. It is far easier to have the covers flat, 

 in which case the edges can be turned down, and 

 made to embrace the rim which fits into the 

 barrel. Inspection of an ordinary saucepan cover 

 will show how this can be done. 



