Elementary treatise on the finishing of white, dyed, and printed cotton goods . e hooks makinglarge holes in the fabric and puckering the selvages. The most practical, reliable and simple appar-atus for measuring is the rectometer. It consistsof a trestle or frame with an arm at each endcarrying a small square steel or cast iron rod onwhich move small rectangular bronze plates. Fig. 115,page 282, represents one of these arms. Figs. 116and 117, page 282, show the arrangement ofeach of the plates placed on the right or left ofthe rectometer. These plates are numbered, sothat the workman need not
Elementary treatise on the finishing of white, dyed, and printed cotton goods . e hooks makinglarge holes in the fabric and puckering the selvages. The most practical, reliable and simple appar-atus for measuring is the rectometer. It consistsof a trestle or frame with an arm at each endcarrying a small square steel or cast iron rod onwhich move small rectangular bronze plates. Fig. 115,page 282, represents one of these arms. Figs. 116and 117, page 282, show the arrangement ofeach of the plates placed on the right or left ofthe rectometer. These plates are numbered, sothat the workman need not count the metres 282 FINISHING IN GENERAL. or yards measured. Adapted to one side of frame adisengaging catch facilitates the unhooking of thepiece. The manipulation of this apparatus is veryeasy and requires no further explanation. A goodworkwoman can hook from 40 to 50 pieces of100 metres in a day of 10 hours, provided thegoods have been previously examined to preventloss of time. Folding and measuring machines produce largequantities, but the goods never have the appear-. Fig. 115. Fig. 116. Fig. 117. ance of those folded on the rectometer, more-over by the former process errors in measurement,prejudicial to the seller as well as to the buyer,may easily occur. Fig. 118, page 283, and fig. 119, page 284,represent two systems most generally in use. Insome machines the table on which the fabric isfolded, is flat, in others it is curvilineal. In thetwo machines represented the tables are tables are often preferred as the piece doesnot slip so much and consequently not so liable MACHINES EMPLOYED IN FINISHING. 283 to be displaced, this causes loss of time as theirregular folds have to be rectified. In Hummers machines the holding rails arecovered with woollen cloth and the table is pro-vided with a heavy counterweight pressing the
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