. Seasoning of wood; a treatise on the natural and artificial processes employed in the preparation of lumber for manufacture . Fig. 98. The RegisteringThermometer. Fig. 99. The Recording Steam-Pressure Gauge. mum and minimum temperatures in the drying roomduring a given period can be determined. The Recording Steam Gauge In Figure 99 is shown the Recording Steam PressureGauge, which is used for accurately recording the steampressures kept in the boilers. This instrument may be HELPFUL APPLIANCES IN KILN-DRYING 247 mounted near the boilers, or may be located at any dis-tance necessary, giving
. Seasoning of wood; a treatise on the natural and artificial processes employed in the preparation of lumber for manufacture . Fig. 98. The RegisteringThermometer. Fig. 99. The Recording Steam-Pressure Gauge. mum and minimum temperatures in the drying roomduring a given period can be determined. The Recording Steam Gauge In Figure 99 is shown the Recording Steam PressureGauge, which is used for accurately recording the steampressures kept in the boilers. This instrument may be HELPFUL APPLIANCES IN KILN-DRYING 247 mounted near the boilers, or may be located at any dis-tance necessary, giving a true and accurate record of thefluctuations of the steam pressure that may take placewithin the boilers, and is a check upon both the day andnight boiler firemen. The Troemroid Scalometer In Figure 100 is shown the Troemroid Scalometer. Thisinstrument is a special scale of extreme accuracy, fitted. Fig. 100. The Troemroid Scalometer. with agate bearings with screw adjustment for beam is graduated from 0 to 2 ounces, divided into100 parts, each division representing l-50th of an ounce;and by using the pointer attached to the beam weight,the 1-lOOth part of an ounce can be weighed. The percentage table No. II has a range from one halfof 1 per cent to 30 per cent and is designed for use whereextremely fine results are needed, or where a very small 248 SEASONING OF WOOD amount of moisture is present. Table No. Ill rangesfrom 30 per cent up to 90 per cent. These instrumentsare in three models as described below. Model A. (One cylinder) ranges, from ^ of 1 per cent to 30per cent and is to be used for testing moisture contentsin kiln-dried and air-dried lumber. Model B. (Two cylinders) ranges from ^ of 1 per cent up to90 per cent and is to be used for testing the moisturecontents of kiln-dried, air-dried, and green lumber. Model C. (One cylinder) ranges from 30 per cent t
Size: 1826px × 1368px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorkdvannostran
