. Canadian foundryman (1918). for an accurate smoothplaner capable of a wide range of workboth in soft and hard woods is well metin the design of this planer, its correctdesign, compactness, feeding power andgeneral efficiency making it readily ad-aptable to the requirements of patternmakers, aeroplane manufacturers, gov-ernment shops, engineering works, ship-builders and railroad car shops. The machine is made in two widths The back pressure bar follows the cylin-der and is held by adjustable screws forregulating the hold-down pressure on thelumber as it leaves the cut. The throatbetween the
. Canadian foundryman (1918). for an accurate smoothplaner capable of a wide range of workboth in soft and hard woods is well metin the design of this planer, its correctdesign, compactness, feeding power andgeneral efficiency making it readily ad-aptable to the requirements of patternmakers, aeroplane manufacturers, gov-ernment shops, engineering works, ship-builders and railroad car shops. The machine is made in two widths The back pressure bar follows the cylin-der and is held by adjustable screws forregulating the hold-down pressure on thelumber as it leaves the cut. The throatbetween the front and rear pressurebars is only 2% inches for service inplaning smoothly and without end clip-ping on very short stock. The chip breaking pressure bar be-fore the cut holds the lumber firmly tothe bed as it is planed, and preventsthe chips from tearing its surface. Itis attached to the main frame in suchposition that it raises concentrically withthe cylinder, thus preventing the barraising into the knives. A steel spring. SINGLE CYLINDER FOUR ROLL DOUBLE BELTED CABINET SURAFACER. to plane either 24 in. or 30 in. wide andthe bed will lower to receive and planematerial up to 8 inches thick. The stan-dard feeds furnished are 14, 18, 24 and31 feet per minute. The sides are of cored form, the girtsare heavily ribbed machine jointed and. bolted. Ample material, properly dis-tributed, eliminates strains and vibra-tion. To assure perfect balance, planing, the cylinder is of thecircular type, made of a crucible steelforging of uniform texture and beltedat both ends. It carries two thin highspeed air hardening steel knives secure-ly clamped against hard steel chip break-ers, whose lips are shaped to repel shav-ings and chips. The entire cylinder isnicely ground to pei-fect size. The jour-nals are long, of unusually large dia-meter and machine ground. The cylinder pulleys are two in num-ber, and their faces are grooved spirally,preventing air pockets under the beltsand a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjec, booksubjectfoundries
