Show Road Magnets L Reap Curious Metal fetal Crop Washington Magnetic road sweepers or nail pickers pickers pickers pick pick- ers used on gravel roads pick up a curious assortment of potential puncture makers and save the motorist a considerable considerable considerable con con- sum of tire expense But in addition to saving money and time this t type pe of maintenance is considered an Important safety mea meat measure ure These magnets electro will vill draw a nail naU through about three inches of loose and pick up as much as 12 pounds of met metal l per mile Here is what one pound of ot metal is reported to have contained after the magnet had passed over a North Dakota highway large nails nalls small nails 30 tacks 23 pieces of ot tin 8 brads 11 bottle caps 5 washers 38 ia pieces of wire 2 screws 5 garters 1 needle 1 haIrpin hairpin hairpin hair hair- pin 1 bolt and 1 razor blade |