20 



HARDWOOD RECORD 



July 10, 1919 



i a 



n , — I — I — : 1 1 : — I : 1 — 1 — . 1 \ 1 1 1 



60 70 60 50 40 30 20 10 



ynic^^^rj Content in Per Cent of Dry Weight 



170 

 160 



15c 



120 



90 



eo 

 70 



60 

 50 



40 

 30 



,^M 



J ISS^QQUL. 



Hpifl^^iy 



J- 



. SCHEDULE liO. 2 

 4/4 Red Gun 



t 



ilb 



■"^■"1 HI, ■'■: |[i 



90 eo 70 



_J 



E 



. i.._ . 



I 



i- 



TBWPERATims- HUUIDITY 



Temp. 



DRYING TABLB - RED GUU 



Condition of Air 

 Entering the Pile 



Humid- 



135 



135 



135 



135 



135 



las 



135 



140 



140 



146 



150 



155 



160 



166 



166 



_8£_ 



_6iL_ 



_&2_ 



60 



20 



Wet 

 Bulb 



1^9 



128 



128 



1£6 



12s 



iSS 



T2^ 



118 



Aver- 

 age 



LIOlB- 



ture 

 Con- 

 tent 

 of 



IiS&b«2 



1-Inch Stock 

 Approximate No. of 

 Dayo to Dry to 5^ 

 from Different 

 Moisture Contents 



100. 



95 



SSL. 



-Si. 



_8fl. 



JI5_ 



-65- 

 60 



46 



40 



36 



30 



20 



TT 



10 



TUZ 



mnlmum 



20 



-12- 



aa_ 



17 



16 



14 



Average 



25 



24 



-.22-. 



-il- 



ls 



-JLS_ 



12 



17 



10 



16 



14 



z: 



■n 



' u«?°. -"O- *0 ^50 40 30 20 10 ' ' ' ' ' ' ' ^—i-^ •. ] \ 1 : 1 \ 1_ 



« B ta tl l l1l rnntent In P«r CenlT nf p^y W elriit UNITED STATES, BEPARTIIEIIT OF AGRICULTURE 



IHTaturoH .specified in tlic fir.st column. The wot-bulb temperature 

 is used in determining tlie humidity in the Iciln with a hygro- 

 meter. The- dew-point temperature is used in determining the 

 humidity in a water spray kiln with a recording thermometer, the 

 bulb of which is placed in tlip h.-,ffl,. plates below the spravs. 



Changes in Kiln Conditions 

 Kiln operation is simplified by reducing the number of changes 

 in conditions to the smallest number that is possible without slow- 

 ing down the drying rate or damaging the material. It is easier to 

 maintain a uniform temperature and humidity in a kiln for a 



