Lumber, its manufacture and distribution . machine is lighter than thetimber sizer and is used to surface stock 2 inches or less in thickness and 1 The position of the feed rolls, chip breaker and pressure bars, and top andbottom cylinders on one type of machine are shown in Fig. 148. THE RE-MANUFACTURING PLANT 253 to manufacture flooring;, shiplap, and similar products. It does notdiffer in essential details from the sizer, although it is a faster feedmachine. When equipped with a profile attachment near the feeding-out end, a planer-and-matcher may be used to manufacture ceiling,partition, d
Lumber, its manufacture and distribution . machine is lighter than thetimber sizer and is used to surface stock 2 inches or less in thickness and 1 The position of the feed rolls, chip breaker and pressure bars, and top andbottom cylinders on one type of machine are shown in Fig. 148. THE RE-MANUFACTURING PLANT 253 to manufacture flooring;, shiplap, and similar products. It does notdiffer in essential details from the sizer, although it is a faster feedmachine. When equipped with a profile attachment near the feeding-out end, a planer-and-matcher may be used to manufacture ceiling,partition, drop siding, grooved roofing, casing, base, crown moldings,and many other patterns. It is a general purpose machine for workingboards and dimension, especially the former. They are made in various sizes, usually for a maximum thickness of6 inches, sometimes 8, and for a maximum width of 9 or 15 inches,and are built to operate at feed speeds ranging from 80 to 300 linearfeet per minute, the higher speeds requiring a special type of machine. By permission American Woodworking Machinery Co. Fig. 148.—A Timber Sizer. A. Feeding-in Rolls. B. Feeding-out Rolls. C. Vari-able-feed Cone Pulleys. D. Top Cylinder Head. E. Bottom Cylinder A Case which encloses one of the Jointer Heads and also serves as a ChipBreaker Support. G. Bed Plate. H. Pressure Bar. which has been developed during the last few years. The output of afast-feed planer-and-matcher may be from 10,000 to 15,000 board feetper hour, depending upon the size of the stock and the feed require a 50 horsepower motor for the machine proper and a 15horse-power motor for the profile attachment. Two men, a feederand a grader, can operate a planer-and-matcher when run at averagespeeds. Molding Machine.—This is a lighter machine than either the timbersizer or the planer-and-matcher and is used in the manufacture of thesmaller sizes of molding, narrow coiling, and in sash, door, and blindwork. It does not differ i
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1922
