. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. the bands leading to themain shafting of the mill. Amachine of this kind can cleanfully 600 pounds of short-stapledcotton wool in a day, with thesuperintendence of one operative,usually a young woman, to dis-tribute the cotton upon the firstfeed cloth. The second Blowing machineis usually called a lap machine,because, after blowing and scutch-ing the cotton, as above described,it eventually coils the fleece upona wooden roller at the deliveringend of the apparatus. It is some-times,
. A dictionary of arts, manufactures and mines : containing a clear exposition of their principles and practice. the bands leading to themain shafting of the mill. Amachine of this kind can cleanfully 600 pounds of short-stapledcotton wool in a day, with thesuperintendence of one operative,usually a young woman, to dis-tribute the cotton upon the firstfeed cloth. The second Blowing machineis usually called a lap machine,because, after blowing and scutch-ing the cotton, as above described,it eventually coils the fleece upona wooden roller at the deliveringend of the apparatus. It is some-times, also, called a spreadingmachine. A section of it isshown in fig. 319. The breadthof this machine is about 3 feet, asthe lap formed is prepared forthe usual breadth of the breakercards, namely, 3 feet. Where thecards are only 18 inches broad,the lap machine is also made ofthe same breadth. In the figure we see the feed-cloth, the scutching barrel, thesquirrel suction, and spreading cage, and the rollers for coiling up the lap. Thelever shown below is for removing the pressure weight from the axis of the lap. COTTON MANUFACTURE. 353 rollers, when a full one is to be removed, and replaced by an empty one. m, at the top,is the commencement of the pipe which leads to the suction fan, or ventilator. Thethickness of the lap in this machine must be nicely regulated, as it determines, in agreat measure, the grist of tlie card-ends, and even the rovings. In 12 hours such a lapmachine will prepare 650 pounds of cotton. Fig. 320 is the first scutching machine, now never seen except in the oldest B is the feed cloth; g h and m n are the two scutcher frames.
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Keywords: ., bookcentury1800, bookdecade1840, booksubje, booksubjecttechnology
