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ARTIFICIAL AIDS TO COMB-BUILDING. 207 
wire (No. 30) is cut into lengths sufficient for one 
frame ; it is then drawn through the central hole 
(a), leaving equal lengths free, so as to finish without 
waste, when it is sewn backwards and forwards, as 
indicated in the figure, and finally fastened, a thin 
nail [n) being commonly used. Frequently, a central 
perpendicular strip of doubled tin is added, as a 
stiffener, to prevent the bending of the bottom bar 
under strain, and two diagonal wires are used. These 
break up the continuity of the comb, but give great 
stability. The foundation is now placed on the board 
Fig. 59.— Wired Frame and Embedder (Scale, i). 
A, Frame— w, Wire.s ; n, Nail. B, Embedder— /i, Handle ; e, e, Embedding Edges. 
(Fig. 52), and the wired frame put over it, care being 
taken that the wax sheet is well up to the top bar. 
The wires are now to be sunk into the wax, and 
this operation needs a fairly high temperature, 
8odeg. being none too hot. A small, flat-ended 
nail, or a bradawl, will answer by simply pressing 
the wire down at intervals of from ^in. to lin., but 
it is best to use an embedder (B). Grasping 
it by the handle (/z), the little tin projections {e) 
soldered to its curved face are brought, in sequence, 
