770 



Popular Science Monthly 



A Light-Running Home-Made 

 Feed Truck 



NY convenience to lighten tlie work 

 of the farm chores is always welcome. 

 The feeding of stock, where there is a large 

 herd, is a tedious task which can be light- 



A 



Writing a Name Under Shell on 

 White of an Egg 



HERE is a somewhat different egg trick, 

 which is startling as well as mystify- 



ing, 

 with 



A light-running truck used'for hauling feed to large herds of 

 stock where a feeding device is not a permanent fixture 



ened considerably by the use of a feed 

 truck. The illustration shows a home- 

 made feed truck that holds 12 bushels. 

 The list of materials is as follows: 



2 Top side rails, 5 ft. 2 in. by 2 in. by i^ in. 

 2 Middle uprights 28 in. by 2 in. by 1 3^ in. 

 4 End standards, 30 in. by 2 in. square. 

 2 Upper cross rails of ends, 30 in. by 2 in. by 



ij^ in. 

 2 Lower cross rails of ends, 26 in. by 2 in. by 



I J^ in. 

 2 Side sills, 40 in. by 2 in. square. 

 4 Floor joists, 26 in. by 2 in. square. 

 I Axle bed, 26 in. by 2 in. square. 

 1 Front wheel bolster, 26 in. by 2 in. square. 

 I Front wheel bolster, 12 in. by 2 in. square. 



The frame is first built with mortise and 

 tenon joints, according to the dimensions 

 given, then the frame is covered on the 

 inside with yellow pine boards that are ^ 

 in. thick, placed horizontally on the bottom 

 and vertically on the sides and ends. 

 The wheels were obtained from a junk 

 dealer and they did service formerly on 

 wheelbarrows. The axle was forged from a 

 piece of shafting obtained at a local black- 

 smith shop. The axle was fastened under 

 the frame just back of the center on the 

 frame pieces. The forward wheel is a 

 5-in. swivel truck caster bought from a 

 hardware dealer. This was placed on the 

 two pieces cut for the front bolster. The 

 truck is more easily trundled by hand when 

 it is loaded than is the ordinary wheel- 

 barrow. — T. H. LiNTHICUM. 



You hand a friend a hard boiled egg 

 the request that it be minutely 

 examined. After he has satis- 

 fied himself that the egg is of 

 the ordinary kind you ask him 

 to print his name on the shell 

 with a pencil or pen. Then tell 

 him to break off the shell, and, 

 much to his astonishment, he 

 will discover his name plainly 

 written on the white of the egg. 

 As you have probably 

 guessed, there is a previous 

 preparation, but it is very 

 simple. Dissolve i oz. of alum 

 in a half-pint of vinegar. Take 

 a small pointed brush and out- 

 line your friend's name, or what- 

 ever you desire, on the shell 

 of the egg. Let it dry thor- 

 oughly and then boil the egg 

 for about 15 minutes. If these directions are 

 carried out all tracings of the writing will 

 have disappeared from the outside of the 

 shell — but when the shell is cracked open 

 it will plainly show on the white of the egg. 



A Center Finder for Round Bars 

 and Shafts 



IN the illustration is shown a cheaply con- 

 structed center finder for round shafts. 

 It consists of a steel square A made of 3^ 

 by I 

 to a 



in. 



90 



mild steel stock carefully worked 

 deg. angle. Riveted to this is a 

 beveled straight 

 edge B at 45 

 deg. from either 

 leg of the angle 

 A. To use this 

 device, place it 

 across the end 

 of the shaft as shown and 

 draw a line along the 

 straight edge B; then 

 move it to another posi- 

 tion and draw another 

 line. The intersection of 

 these two lines, as at C, is 

 the center of the shaft. 

 Of course, greater refine- 

 ment and better wearing 

 qualities may be obtained by hardening 

 and grinding the various parts involved in 

 the construction. — W. Burr Bennett. 



The center of 

 a shaft or bar 

 is easily found 



