7'?n 



Pnpiihir .S 



CICVCC 



Mnnthhi 



A curtain of cold water falling on a screen in front of the 

 furnace partially neutralizes the effects of the terrific heat 



snow-wliitc starcli. 



A Water Curtain to Protect Workmen 

 from Intense Heat 



IN OUR rollinsr mills the output of 

 finished material falls off in the hot 

 summer months, due to the intense heat 

 radiated by the furnaces. Several 

 means have been devised to protect 

 workmen from these infernos. Among 

 the most recent is a water curtain 

 shown in the accompanying illustration. 



It consists of a rectangular-shaped 

 sheet-metal screen suspendcci by three 

 door-hangers placed on an iron track. 



The two furnace en- 

 trances have angle- 

 around their edges 

 keep the water from 

 affecting the fire. 

 Riveted to the bot- 

 tom of the screen is a 

 trough which receives 

 the falling water and 

 conveys it to a drain 

 pipe. At the top, 

 extending lengthwise, 

 is the spray pipe. 

 This isef|ui|)pe{l with 

 a row of small holes in 

 the bottom, through 

 w li i c h t h e w a t e r 

 flows against the cur- 

 tain. 'Phe .spray pi])e Large enough to hold a postmistress 



How Nature Puts the 

 Pop in Popcorn 



NATIRK has filled a 

 grain (jf popcorn 

 with tightly packed 

 starch-grains. The in- 

 terior of the grain is 

 divided into a large num- 

 ber of cells, each of 

 which may be likened to 

 a tin box, the walls 

 of which are sufficiently 

 strong to withstand con- 

 siderable pressure from 

 within. Upon the appli- 

 cation of heat the mois- 

 ture present in each little 

 box is converted into 

 steam that finally es- 

 capes by explosion. In 

 some cases the explosions 

 are of great force. 



A ven.- high degree of 

 heat is required for satisfactory popping. 

 This causes most of the cells to explode 

 simultaneously. The grain of corn then 

 literally turns inside out, and is trans- 

 formed into a relati\ely large mass ol 



A Mail Box Big Enough 

 to Keep House In 



E.ACH >ear the residents of Syracuse, 

 New York, invite their nearby 

 friends and the rest of the world to the 

 New ^'ork State Fair, which has been 

 held in that city for 

 my years past. This 

 year the Syracusans 

 waxed eloquent and 

 designed the huge 

 mail box, shown in 

 the accompaining il- 

 lustration, for mailing 

 srxeral tlu)usaii(l 

 letter and post-card 

 in\ itations. 



The box is aliout 

 twelve feet high, six 

 feet wide, and eight 

 feet long. It was so 

 big peoi)li' couldn't 

 m.iil their letters in 

 the iisu.il wa\-, so a 

 il.iintv postmistress 



is capped at one <'nd. 



and thousands of letters nnd cards 



was ni 



nailed. 



