Archive image from page 549 of Department bulletin (1923-1929). Department bulletin departmentbul11261150unit Year: 1923-1929. BULLETIN 1U1, U. S. lUU'ARTMENT OF AGRICULTURE. f > (Z â Z] f J 1 >- â N 1 ' _r. -> > dEE â¢- ! 1 r J c \ 1 f c <- J 2 S ° -3 o and the distribution of (lu> pipes under the (I r y i no- floor. In all these systems a section of double-thickness Uussia iron pipe, 10 inches in diameter and 4i feet long, is placed on top of the furnace. This reaches a point about the same distance from the drying floor. The course of the hot pises in the differe
Archive image from page 549 of Department bulletin (1923-1929). Department bulletin departmentbul11261150unit Year: 1923-1929. BULLETIN 1U1, U. S. lUU'ARTMENT OF AGRICULTURE. f > (Z â Z] f J 1 >- â N 1 ' _r. -> > dEE â¢- ! 1 r J c \ 1 f c <- J 2 S ° -3 o and the distribution of (lu> pipes under the (I r y i no- floor. In all these systems a section of double-thickness Uussia iron pipe, 10 inches in diameter and 4i feet long, is placed on top of the furnace. This reaches a point about the same distance from the drying floor. The course of the hot pises in the different systems may be fol- lowed by referring to the illustration. The outside row of pipes is placed about 22 inches from the wall of the kiln. The whole pip- ing system is given a gradual rise from the furnace to the flue and is held, in place by wires or chains at- tached to the joists. Openings fitted with covers are provided at several points, in order that the piping may be cleaned out without taking it down. At the point where the pipe enters the flue the pipes are about 2 feet below the joists of the drying floor. Some furnaces are fitted with two openings for pipes, and with this type of fur- nace one opening is used for each side of the kiln and the pipes are joined with a tee just before entering the chimney. The second system illustrated is used to a greater extent than any of the others, for the reason that the third system, while giv- ing greater radiating surface, is very difficult
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Keywords: 1900, 1920, 1923-1929, agriculture, archive, book, bookauthor, bookcentury, bookdecade, bookpublisher, booksubject, bookyear, drawing, historical, history, illustration, image, page, picture, print, reference, united_states_dept_of_agriculture, vintage, washington_d_c_the_dept_supt_of_docs_g_p_o_
