Publisher's Synopsis
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1898 edition. Excerpt: ...with tolerably uniform tension ensured by reason of the swing bar D. The tension bars T T are fixed in such a position that the cloth in going over the roller R and through the pot eye P, is somewhat tightly drawn to the bottom of the grooved roller A before it passes through the "nip;" this tension is necessary to prevent the piece from becoming damaged. The cloth is drawn from the machine by means of a roller or winch actuated by the pulley M. The pressure of the brass disc B against the grooved roller A is regulated by the screw c connected with lever and spring; N N are fast and loose driving pulleys. Drying Machinery.--Calico is frequently dried in stoves heated with hot flues or steam pipes situated in the basement (see p. 441). The internal arrangement for suspending the pieces varies. In some the building is one-storeyed, and the pieces are suspended in zigzag fashion from wooden rails placed near the roof, so that the loose folds come within a few feet of the iron grating over the flues. In others, the stove is divided into several storeys, each with floors of iron grating, and furnished with wooden framework having long parallel rows of upright wooden pegs. One selvedge of the pieces is passed alternately from right to left, and twisted over the pegs. By this plan of hanging it is possible to pack a much larger quantity of cloth into a given space. Calico is also dried by means of the steam-cylinder drying machine described on p. 286. When it is not desirable that the cloth should come into actual contact with a heated metallic surface--e.g., in drying cloth after impregnating it with mordants which are injuriously affected by a high temperature--the pieces may be made to traverse a closed hot-air chamber fitted with...
