American School of Correspondence · Chicago, American school of correspondence · leaf 177
of the doffer: Multiply togetherthe driving gears and the number of revolutions of the cylinder(165 R. P. M.) and divide their product by the product of thedriven gears. [The driving gears are D^, Z, T (change gear, 30teeth) and V^.] (The driven gears are B, Si, P^ and Q.)165 X 18 X 6 X 30 X 20… … x ^ OS cSXI ^ COTTON SPINNING. 117
Textile industry and fabrics
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![An illustration from The Mason Machine Works, Taunton, Massachusetts, U.S.A., inventors and builders of cotton machinery : Founded 1842 ; Incorporated 1873 ; [Catalogue] (1898)](https://img.insideoutlibrary.com/img/200/ia-masonmachinework00maso-92-32.webp)
