American School of Correspondence · Chicago, American school of correspondence · leaf 165
l be understood better by referring to Fig. 91.The surface of the flat which bears upon the bend is indi-cated by the horizontal line, A — B, and the face by the line,C -— D, the heel of the flat by E and the toe by F. The center ofthe grinding roll is indicated by the vertical line, G — H, which… … Fig. 92. Elevation Showing Position of Flat Grinders When in Use. vances until the toe comes to this point, it is evident that it willreceive no grinding, owing to the inclination of the wire face.The flats must therefore be tipped, as they pass the grinding roll,so that they shall be ground…
Textile industry and fabrics
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