. Electrical world. levator or conveyor, refilling the shelves asfast as they are emptied, with bunches of the papers or magazinesjust as they are taken from the press. The construction of theelevator is clearly shown in the cut. It consists of two sets of movingshelves carried, perpendicularly to their direction of travel, by end-less chains and arranged to run at the same speed, but in oppositerotation, so that contiguous shelves register with one another. Itsaction is intermittent, and under electrical control, which maintainsthe top of the pile at a height. At each cycle of the mach
. Electrical world. levator or conveyor, refilling the shelves asfast as they are emptied, with bunches of the papers or magazinesjust as they are taken from the press. The construction of theelevator is clearly shown in the cut. It consists of two sets of movingshelves carried, perpendicularly to their direction of travel, by end-less chains and arranged to run at the same speed, but in oppositerotation, so that contiguous shelves register with one another. Itsaction is intermittent, and under electrical control, which maintainsthe top of the pile at a height. At each cycle of the machinelittle pneumatic suckers come down on the uppermost paper and,with a combined lifting and pulling movement, start it far enoughinto the machine to be taken along by a horizontal belt at the opposite side of the machine wrapping paperdrawn from a continuous roll is introduced under the periodical andcut of? the required length. When the paper and its wrapper have reached a definite position. FIG. 2.—MAILING MACHINE. a vertical blade descends, creasing them through the middle and car-rying them down between a set of steel rolls. The vertical blade thenreturns to its upper position and a horizontal blade folds themagain and carries them to a basket or receiver. The wrapper is notentirely under the paper when folded with it, consequently onlypart of it goes into the inside with the operation of folding. It issufficient, however, to prevent the wrapper from sliding off thepaper later on, and the extra amount projecting on the outside formsthe flap. This is gummed by a roller covered with a solution ofdextrine, and is pressed down by another roller as the package passesout of the machine. On the shelf at the side of the machine justbefore being discharged it pauses long enough to receive an impres-sion through a stencil, giving it its individual address. The perforated stencils for the addressing are arranged to replaceone another successively at each cyc
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
