Popular Science Monthly 



883 



Reclaiming Discarded Metal 

 from Scrap Piles 



T 1 



Drawing the hogs up out of the scalding tub, 

 preparatory to passing them through the machine 



As before mentioned, pickled pigs' feet, and 

 snouts, and tails, are much more palatable 

 because of the absolutely clean condition 

 of the epidermis. The brine is not contam- 

 inated with hair and dirt left on the skin. 

 Even the ears on the hog are polished inside 

 and out. 



It is through this cleanliness obtained 

 by new packing processes that it is now 

 possible to make desirable flour for bread 

 from the skin of hogs. 



In every pork-packing plant there is a 

 residue left from the process of trying out 

 lard. It is a mixture of fatty tissues and 

 bits of skin. It is called "cracklings" and 

 is very similar to the residue obtained by 

 housewives when frying 

 out bits of grease. These 

 cracklings from a 

 packing plant come ^^ 

 in rather dry form, f**'*^ 

 the various bits having 

 caked together in the proc- 

 ess of squeezing out the 

 grease. It is these cakes 

 that the maker of pigskin 

 flour grinds up. The re- 

 sulting powder is very 

 clean in appearance, and 

 is slightly yellow in color 

 like fine corn-meal. Mixed 

 with a slightly larger por- 

 tion of ordinary flour, this 

 substance makes very rich 

 bread, without additional 



"shortening," and is con- . 



• i j i °.j ji , Pull the trigger of this 



sidered decidedly pala- toy gun and you shoot 



table and nutritious. out — a parachute 



HE price of metal has risen to 

 such an extent that many con- 

 cerns are searching their scrap piles 

 in an endeavor to find parts of ma- 

 chinery which may be repaired and 

 put back into use. At one Western 

 mine enough dollies and dies were 

 found in the scrap pile to last three 

 months. They were welded up at 

 a cost of one dollar each. New ones 

 would have cost nine dollars. In the 

 same scrap heap enough short ends 

 of tungsten steel were found and 

 welded together to last a year. 



In the scrap pile of a railroad shop 



a lot of old locomotive drivers were 



found. These had been discarded 



because of cracked spokes. The 



cracks were welded and the wheels are 



again in use. This reclamation of scrap 



is made possible by the oxyacetylene 



process of welding and cutting. Before 



long, searching the scrap pile will be almost 



as popular, and perhaps more profitable, 



than digging for gold. 



A Toy Gun for the Pacifists. It Shoots 

 An Umbrella 



ONE of the latest additions to the list 

 of harmless weapons for the juvenile 

 warriors is a gun which shoots out from 

 its barrel an unfolded umbrella, or para- 

 chute and flag. A strong spring takes the 

 place of powder. The firing mechanism is 

 very similar to that of the ordinary small- 

 caliber revolver. When the gun is 

 ready to be fired the umbrella lies 

 telescoped within the 

 barrel. When the 

 trigger is pulled the 

 hammer is released 

 from its cocked posi- 

 tion, striking the fir- 

 ing pin and releasing 

 the catch holding the 

 umbrella. Thus re- 

 leased the umbrella is 

 forced out of the bar- 

 rel and is unfolded, the 

 ribs which hold the 

 frame out and retain 

 the extended para- 

 chute in shape being 

 attached by cords to 

 the gun. 



