Don Mills, Ont. : Southam-MacLean Publications · leaf 257
than 6 percent, of moisture. With the use of this instrument it is no longer necessaryto guess at the conditions of the lumber. It can be used todetermine how much moisture is in the lumber before it goesinto the kiln, and it determines with absolute precision justwhen it is dry enough, and it… … Fig. 2. Morton RegisteringHygrometer. consists of two specially constructed thermometer tubes sim-ilar to a physicians fever thermometer and mounted in acoppered case. The bulb of one tube is cooled by means ofa silk wick extending into a glass vessel of water. Whenthe hygrometer is placed in the…
Furniture industry and trade · Woodworking industries
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