MARK. — AN ELECTRIC WAX-CUTTER. 



635 



rmMi. 



Figure 3. Diagrammatic representation of the essential parts of the appa- 

 ratus. These are all shown in vertical section, except the rheostat, which is 

 shown in horizontal projection. Near the middle of the rectangular area, 

 bounded by the arms of the "needle-bar" (B, B) are shown in vertical section 

 the nozzle (N) with its slot (T) and the platinum wire (W) ; and immediately 

 above this a horizontal section of the same at the level of the letter N of the 

 vertical section. 



B, B. The two vertical arms of the " needle-bar " ; D, glass tube terminating in 

 the bottle, which also receives the copper tube ; the rubber suction tube is at- 

 tached to the glass tube at D; H, portion of the "liead" of the sewing macliine, 

 which receives the "needle-bar" ; L, link by which the " needle-bar " is attaclied 

 to the lever; N, nozzle of the copper tube ; 0, orifice of tube for the escape of 

 steam from the hot-water tank ; P, metal ])lug to fill the slot in N ; R, rheostat ; 

 S, brass sj)ring to keep the platinum wire taut wlien hot ; T, slot in one side of 

 copper nozzle ; V, lever connected with crank wheel ; W, platinum wire. 



