MARK. 



AN P^LECTKIC WAX-CUTTER. 



633 



scribed will evidently be moved up and down with the oscillating 

 vertical motion of the lever V, and is represented in Figure y> at 

 about the michlle point of its excnirsion, which in this machine amounts 



a b 



FiGTRE 2. The top of the nuichiiie aoen obliquely from above. The slate 

 platform, showiiiti a eentral hole for the nozzle of the copper tube and a slot 

 runiiiuii' from it to the front margin of the platform, has been pushed baek so 

 as to uncover the " well," in which are seen the round screw cap of the hot- 

 water tank, and immediately beyond it a portion of the lower horizontal arm of 

 the '■ needle-bar." In addition are seen the two levers (a, b) which are nsed in 

 raisiui; tiie far edge of the platform. At the left of the "well" is tiie removable 

 felt screen, and in the background the Wagner und Muntz ])ump. Tiu' ]datiniim 

 wire (whicii has been imrjiosely made more conspicuous than it really is) is 

 sliown with tile su])portiiig brass wire and spring, and likewise tlie manner in winch 

 thi' latter are sui)ported by passing through the bars of indurated fibre. Tlie 

 portable lamp is seen at the right. 



to H") mm. Supporting the upper wire and spring by two sets of 

 horizontal bars bored to receive the cylindrical rods has the advantage 

 of allowing one to adjust the upper hook vertically over the lower hook 

 with great ease and accuracy. Once clamped in the proper ])osition, 



these bars need no resetting. 



The use of indurated fibre, which is a 



