American School of Correspondence · Chicago, American school of correspondence · leaf 275
directly connected areshown on an enlarged scale in Fig. 170. When the bobbin rail is moving upward, the builder is moving inthe opposite direction. In the drawing. Fig. 170, we will assume thatthe builder is going downward. The upper arm of the tumbling dog,F^, is pressed firmly against the top… … FLOOR LINE Fig. 169. Elevation Showing Starting Cam. turns the tumbling shaft slightly so that the bevel on the top cone shaft,which is revolving rapidly, engages the toothed portion of the gap gearand gives the tumbling shaft one-half of a revolution. The reverse shaft, which is driven from the…
Textile industry and fabrics
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