The needle-beds of flat knitting machines are not stationary. All flat knitting machines are provided with a needle-bed racking system which is used for shifting one bed in relation to the other by means of a special cam placed on the machine's side (picture 36).
Racking can occur in both directions. The needle-bed can also take different positions: racking over half needle or full needle. The racking motion allows the creation of inclined patterns (right-hand or left-hand) on the knit fabric (picture 37).
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