. Cassier's magazine . FIG. 1. STRIPPING A CARDING MACHINE; SHOWING A DUST CLOUD The main cylinder is belted withfillets of wire clothing, rolled roundand round the cylinder so as topresent a myriad of wire points tothe feed of the licker-in. The fibresare thus held by the main cylinder,straightened and combed by contactwith the flats on the upper portionof the machine. These flats forma series of metallic staves, each cov-ered again with its fillet of wire- clothing; they travel at a very slowspace over the upper surface of themain cylinder; and since this latterrevolves at 150 to 160 revolut
. Cassier's magazine . FIG. 1. STRIPPING A CARDING MACHINE; SHOWING A DUST CLOUD The main cylinder is belted withfillets of wire clothing, rolled roundand round the cylinder so as topresent a myriad of wire points tothe feed of the licker-in. The fibresare thus held by the main cylinder,straightened and combed by contactwith the flats on the upper portionof the machine. These flats forma series of metallic staves, each cov-ered again with its fillet of wire- clothing; they travel at a very slowspace over the upper surface of themain cylinder; and since this latterrevolves at 150 to 160 revolutionsper minute there is considerablecombing, separating and cleansingaction performed between the cyl-inder and the flats. But another important item ob-tains here. The wire clothing pre-sents to the fibres of cotton from DUST EXTRACTION IN COTTON MILLS 581. FIG. 2. DUST GENERATED ON STRIPPING. MAGNIFIED 20 DIAMETERS 280 to 300 fine wire points to thesquare inch. And the opening,combing and abrading action of thesewires causes myriads of dust par-ticles and grit to accumulate betweenthe close blades of wire, besides har-bouring a vast quantity of shortfibres. And as the wire blades areonly about a quarter of an inch deep,it follows that the continuous use ofthe cylinder must, in a brief period,choke up the space between the wiresand cripple the efficiency of the ma-chine. This, therefore, brings us tothe crux of our subject—the cardwires must be cleansed or the fac-tory operations must cease. At three or four different periodsin the course of a working daythese card wires—both on the maincylinder and on the secondary ordoffer cylinder — are thoroughlycleansed by the introduction of aroller stripping brush covered withwire bristles. The brush is lodgedin brackets provided on the frameof the machine (Fig. i) by twoworkmen known as str
Size: 1809px × 1381px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyork, booksubjec
