HOSIERY 



: 817 



right ; the fourth is in the act of rising, and the remaining four, 5, 6, 7, and 8, are 

 still unacted upon, the slur not yet having reached them. As the slur acts in the 

 direction of the dotted line x x, 1161 



Jig. 1160, behind the centres of 

 the jacks, it is hardly necessary ? 

 to remark, that this forcing-up 

 of the tails must of course de- 

 press the joints by which the 

 sinkers in front are suspended ; 

 the jack sinkers falling succes- 

 sively from the loops on every 

 alternate needle, in the way re- 

 presented at jig. 1163, where 

 both kinds of sinkers appear in 

 section, the light part expressing 

 what is above the point at which 

 the throat of the sinker operates 

 upon the thread, and the dark 

 part what is below. The second 

 set, or, as they are called, the 

 lead sinkers, from the manner of 

 joining them, and suspending 

 them from the bar above, ap- 

 pear still elevated ; the position 

 of the bar being represented by 

 the line, A B. But when these 

 are pulled down to the level of 

 the former by the operator's 

 hands, the whole looping will be 

 completed, and the thread c D, 

 which is still slack, will be 

 brought to its full and proper 

 degree of tension, which is re- 

 gulated by top screws, so as to 

 be tempered or altered at plea- 

 sure. The sinking of this second set of sinkers may be easily explained \>y Jig. 1164. 

 The direction of the sinkers is expressed by the line E ; the bar from which they are 

 suspended will be at A ; the top frame is in the direction from A to B ; the back 



1163 



1162 



1164 



standards at D ; and the joint at B, is the centre of motion. If E is pulled perpendicu- 

 larly downwards, the spring c will be contracted, and its upper extreme point, G, 

 will be brought nearer to its lower extreme 

 point F, which is fixed. Again, when the 

 force which has depressed K is removed, 

 the spring c will revert to its former state, 

 and the sinkers will rise. The raising of 

 the jack sinkers and jacks takes place at 

 the same time, by the hosier raising his 

 hands ; and for the cause of this we must 

 revert to jig. 1158. The lead sinkers in 

 rising lay hold of notches, which raise the 

 extreme parts of the set of jacks z, z, which 

 are called half -jacks. Between the extremities of these at z z, is a cross bar, which, 

 in descending, presses all the intermediate jacks behind the common centre, and re- 

 stores them to their original posture, where they are secured by the back springs, 

 until they are again relieved by the operation of the slur recrossing at the next 

 course. 



VOL. H. 3 G 



