CALICO-PRINTING 



615 



modus operandi is as follows : If the ring d is turned right or left, the skeleton plate 

 b, on which one of the said cloths or wire gauze has previously been placed, will be 

 brought firmly up to the extremity of the cylinder A ; and if the said cylinder bo filled 

 with colouring matter, the piston M, being worked by the pulley E, the wheels F, o, 

 H, i, K, and the rack L, will force it through the cloth or sieve, to be received in a 

 vessel under it for the purpose ; and by a proper arrangement of the teeth of the said 

 rack L, the piston can only descend to any required point in the cylinder. To faci- 

 litate the working of the apparatus and increase its general efficiency, the cylinder is 

 fixed on pivots at N, so that it may be easily inclined or brought towards the operator 

 for the purpose of introducing the colouring matter or cleaning the vessel To the 



368 



ring or band B are fixed the two handles jf and the two catches h. The catches being 

 raised from the notch k on the frame P, the cylinder may be pulled forward by means 

 of the handles /, till the hooks, being acted upon by a spring, re-engage themselves 

 at k on the lower part of the frame P, and vice versa. On the shaft x is placed a second 

 wheel Q, by which a reverse motion is obtained, and the piston M raised to its original 

 position. 



A straining machine patented by Samuel Ridge and Co. of Manchester ha,s been 

 introduced into some of the largest print works in Lancashire, and is very favourably 

 spoken of (figs. 368, 369, 370, 371). 



Fig. 368, sectional view of strainer ; fig. 369, ground plan, showing sieve, paddle 



