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Hardwood Record — Veneer & Panel Section 



July 25, 1921 



LONG-KNIGHT 



LUMBER COMPANY 



WALNUT- HARDWOODS 



Veneers 



Mahogany, American Walnut, Quartered White Oak 

 Manufacturers and Wholesalers 



Indianapolis, Indiana 



Lining Up Your Roll Feed Sander 



Every sander man has his own method of lining up 

 his sander, consequently there are many different methods 

 in use. The following has been employed by an old- 

 timer for years, and is claimed to be a quick and sure 

 method of securing the desired results. 



First add an extra straight-edge to your usual equipment 

 of one long straight-edge. The time this will save will soon 

 pay for the small extra cost, as when two straight-edges 

 are used, the entire line-up can be made without changing 

 the original position of these tools, thus saving the great 

 amount of time and accuracy lost in constantly shifting 

 one straight-edge from side to side. 



Now go about your lining-up in the following order — 

 bed plates, drums, bottom feed rolls, top feed rolls and 

 pleasure rolls. If machine is set up level, lining-up bed 

 plates should never be necessary. However, if holding 

 screws have worked loose, lower drums below bed level, 

 and lay each straight-edge lengthwise with the bed, edge 

 up, two or three inches from ends of plates, placing cards 

 between each bed plate and straight-edge. Adjust each 

 plate from alternate sides until the cards are all held 

 equally tight. Then draw the screws up and test the 

 cards again to make sure of the tightening. See that it 

 has not drawn one end of any plate higher than the other. 



Next, pull out cards without changing position of 

 straight-edges. Loosen the two set-screws in the stud 

 of each drum box, and turn the screw that the studs rest 



on until each end of the drum felt firmly touches the 

 straight-edge. Draw up the set-screws all around, and 

 your drums are in line. It is better to make line-up with 

 felt rather than with sandpaper, because the paper might 

 be a little loose. 



Now insert the eight cards as before. Loosen feed 

 roll wedge screws and turn adjusting screws to the right 

 to raise feed rolls level with the straight-edges. Tighten 

 wedge-screws to lock adjustment. Feed roils are now 

 lined up with drums and plates at a level with the thick- 

 ness of the cards above them, which is their correct feed- 

 ing level. 



You are now ready for the upper adjustments. Go 

 about these exactly as on the lower, only placing cards 

 above instead of below straight-edges, and tvk'o cards 

 under the pressure rolls, so that when the top is lowered 

 both feed and pressure rolls will touch the cards. Then 

 line up first the feed and then the pressure rolls, exactly 

 as you have the lower adjustments. Put paper and drum 

 belts on and run your machine free for a few minutes to 

 be sure everything is in good shape. 



Now make final adjustments according to the stock to 

 be run, lowering drums to level of cuts, as they probably 

 will be too high, having been leveled with the felt. 



If, after years of use, correct adjustments do not stick, 

 do not forget that you can take up thread or bearing wear 

 by means of take-up collars provided, or by substituting 

 thinner oil felt in the split boxes. 



