748 



Popnlar Science Monthly 



The Traveling Brush-Burner. 

 Orchardists Please Notice 



ONE 

 si] 



This portable brush-burner saves much time in haul- 

 ing and provides valuable potash for the proprietor 



kNE of the 

 simplest 

 and yet the 

 most conve- 

 nient devices 

 built for or- 

 chardists is 

 the sheet-iron 

 brush-burner 

 built by Wm. 

 Miller, of 

 Gypsum, 0. 

 Mr. Miller 

 had this con- 

 structed for 

 use in his own 



orchards and therefore did not have it 

 patented. In consequence fruit growers 

 are helping themselves to the result of 

 Mr. Miller's thinking. 



The burner is made of one-sixteenth 

 inch sheet iron, riveted together as shown 

 in the accompanying photograph. It is 

 practically a large cyl- 

 inder with top open 

 and both ends closed. 

 The top is opened the 

 entire length, but just 

 wide enough to admit 

 the brush. The heat 

 is forced upwards, rath- 

 er than outwards, thus 

 preserving the nearby 

 trees. 



This burner is 

 mounted on sled run- 

 ners. After an orchard 

 has been pruned, the 

 men drive through the 

 orchard with a big 

 blazing fire in the burn- 

 er. The brush is 

 burned as they drive 

 along. In this manner 

 much time is saved. 

 "When the burner gets 

 full of ashes, the own- 

 ers have at their com- 

 mand a product that 

 ranks high in potash, a 

 scarce yet necessary 

 fertilizing element, so 

 that this a|)j)aratus 

 eflects great economies. 



Static electricity is solely responsi- 

 ble for the difference in appearance 



Static Electricity Drawn From 

 Paper by Alternating Charge 



ONE of the 

 most an- 

 noying sources 

 of trouble to 

 printers is 

 static electric- 

 ity in the pa- 

 per. It causes 

 the sheets, 

 during the 

 process of 

 printing, to 

 adhere more 

 or less firmly 

 to the cylinder 

 or the delivery 

 mechanism of the press and to other 

 sheets. The speed of the work is reduced, 

 exact registering is made practically im- 

 possible and even stacking, whether by 

 hand or by machine, a matter of the 

 greatest difficulty. 



An electric neutralizer has been in- 

 vented which complete- 

 ly does away with all 

 trouble from static 

 electricity. It supplies 

 an alternating charge 

 of electricity by means 

 of a small motor gen- 

 erator which gives an 

 alternating current at 

 about a seventy-volt 

 pressure. This in turn 

 is passed through a 

 transformer where it 

 becomes a current of 

 high pressure and small 

 quantity, ready for de- 

 livery to the paper 

 through distributing 

 bars on the press. 

 These bars are com- 

 posed of a number of 

 fine metal points set 

 in porcelain insulation. 

 A bar is located near 

 the cylinder and drop 

 guides and, if neces- 

 sary, one is attached to 

 the delivery. As the 

 sheets pass under a bar 

 the charge of static 

 electricity is drawn out. 



