Lumber, its manufacture and distribution . atter being cushioned aboveand below to avoid heavy shocks due to quick action. The valvesof the cylinder are controlled by alever which is operated by the trip-per. This form of trip is suitablefor handling heavy stock and willshove the cants toward the gangsaw, and when necessary it may beused to pile cants four or five tiershigh on the storage skids uponwhich skid rollers sometimes aremounted (Fig. 97). The latterare about 6 inches in diameter,have a f-inch face, and are sunkinto the skids so that they projectabout 2 inches above them. Eachskid rol
Lumber, its manufacture and distribution . atter being cushioned aboveand below to avoid heavy shocks due to quick action. The valvesof the cylinder are controlled by alever which is operated by the trip-per. This form of trip is suitablefor handling heavy stock and willshove the cants toward the gangsaw, and when necessary it may beused to pile cants four or five tiershigh on the storage skids uponwhich skid rollers sometimes aremounted (Fig. 97). The latterare about 6 inches in diameter,have a f-inch face, and are sunkinto the skids so that they projectabout 2 inches above them. Eachskid roller is mounted on a bearingand revolves when a cant passesover it. Transfer Chains. Various types of chains are used FlG 97__A Trip for Throwing Cantsto move lumber in a direction at sidewise from a Line of Live Rollersright angles to the live rollers. A to Roller of chain, called the house-top, roof-top, or hog-back, Fig. 98, is most commonly used when boardsmust be shunted upon the transfer chain at right angles to its direc-.
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1922
