194 



FITTINGS AND APPARATUS. [Ch.- iv. 



centrifugal motion was obtained by winding coils oC 

 string" round the upper part of the revolving shaft, whicb 



was thus put in motiom 

 by pulling the string 

 sharply in the way a 

 boy's humming-top is 

 made to spin round. 



This answered for a 

 beginning; but with the 

 opportunity of employ- 

 ing machinery it was 

 soon found that many 

 improvements in the- 

 construction might be 

 made. For instance, 

 it was apparent that 

 the extractor should be 

 constructed of metal, 

 because the wood ab- 

 sorbs so much honey that it will soon become sour 

 in warm weather, however carefully attended to and 

 cleansed. The honey-extractor shown here consists of a 

 metal reservoir with a treacle tap at its base to draw off the 

 liquid honey. In the middle of this reservoir is a cast- 

 iron spindle, with arms or projections to receive two 

 metal wire cases, one on each side ; in these cases the 

 combs are placed, whether in frames or not. Motion is 

 given by turning the handle, which with the aid of a 



