338 



Popular Science Monthly 



A Giant Grinder Which Goes to 

 Its Work 



IF you have an axe to grind, it is no 

 longer necessary to bring the axe to 

 the grinding wheel, for a portable 

 grinding wheel of full-sized proportions 

 has been brought into the grinding field. 



The newest thing in portable tools is a grinder which 

 goes to the blade to be sharpened 



Numerous small grinding equipments in- 

 tended for light work have been intro- 

 duced from time to time, but only re- 

 cently has a man-sized portable grinder 

 been a reality. A huge motor mounted 

 on a three-wheeled truck supplies the 

 driving energy to the 

 abrasive wheel through 

 flexible tubing. In opera- 

 tion when the speed has 

 been adjusted to suit the 

 needs of the workman, he 

 grasps the handles of the 

 wheel on either side and 

 brings it against the object 

 to be ground at any angle 

 or any pressure desired. 

 Grinders of this type are 

 intended for use in foun- 

 dries or in factories where 

 there is a great deal of 

 heavy abrasive work to be 

 done. 



For the mechanic who 

 values convenience and 

 neatness of work, this new 

 ajjpliance is well-nigh per- 

 fect. 



A Test for Baggage-Smashers 



EXPRESSMEN who are accustomed 

 to slamming trunks around like 

 pasteboard boxes may not have to be 

 cautioned to handle with care the baby 

 elephant of a trunk pictured, for they 

 will do well if they budge one corner of 

 it. It was built in Fargo, 

 N. D., and is eighteen feet 

 long, ten and a half feet high, 

 and ten feet wide. 



To build this monster near- 

 ly two thousand feet of lum- 

 ber were used as well as five 

 hundred bolts, eighty-seven 

 yards of canvas, ninety yards 

 of lining, fifty-four pounds 

 of nails, half a ton of iron, 

 and ten gallons of paint and 

 pastes. 



The trunk is made in sec- 

 tions, and can be knocked 

 down and stored under cover 

 when not on exhibition. It 

 is canvas-covered. The slats 

 are made of planks ; the cor- 

 ners and binding are of heavy 

 iron and are bolted on. The 

 lock is made of bronzed wood, 

 so that it looks like brass. The handles 

 are of wood and are covered with imi- 

 tation leather. The trunk is wired for 

 electric lights. 



On the inside are a ten-foot showcase 

 and two dray loads of trunks, bags, etc. 



A trunk like this could be inspected by customs officers 

 from the inside. It has its own electric lights 



