. Electrical world. one at each end of the machine. After beingprinted the two webs are associated and led to a cutting and foldingmechanism located midway in the length of the machine, from whichthe sheets are delivered upon moving aprons. The entire length ofmachine is 24 feet; height. 9 feet; width. 6 feet. The power re-quired to drive the machine at speed is 30-hp, and a Crocker-Wheeler motor of standard type, making 825 r. p. m. is employed,placed below the folding and delivery mechanism upon the bedplate of machine. Another motor of y/z-hp, 875 r. p. m., is also usedat times, when it is
. Electrical world. one at each end of the machine. After beingprinted the two webs are associated and led to a cutting and foldingmechanism located midway in the length of the machine, from whichthe sheets are delivered upon moving aprons. The entire length ofmachine is 24 feet; height. 9 feet; width. 6 feet. The power re-quired to drive the machine at speed is 30-hp, and a Crocker-Wheeler motor of standard type, making 825 r. p. m. is employed,placed below the folding and delivery mechanism upon the bedplate of machine. Another motor of y/z-hp, 875 r. p. m., is also usedat times, when it is necessary to move the press slowly (about 6 percent, of full speed), in order to lead the paper. The means by which either motor may be used to drive is this: With this arrangement, it will be understood that the machine maybe moved at slow speed by the small motor only driving (throughthe reduction gearing and ratchet wheel) the pawls which are se-cured to the pinion shaft; and that when full speed is required the. FIG. 44.—MOTOR-DRH-EX MOLDING PRESS IN FOUNDRY. The armature of the large motor is coupled to a short shaft, on theopposite end of which is a rawhide gear pinion, in mesh with alarge gear wheel on the outer end of the main driving shaft of themachine and which will run at 166-/3 r. p. tu. Secured to the pinionshaft is a disc, carrying spring-seated pawls which are adapted toengage with the teeth of a ratchet wheel formed on the side of .1gear wheel, mounted loosely upon the pinion shaft and driventhrough reduction gearing by the small motor.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
