FREE BOOKS

Author's List




PREV.   NEXT  
|<   26   27   28   29   30   31   32   33   34   35   36   37   38   39   40   41   42   43   44   45   46   47   48   49   50  
51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66   67   68   69   70   71   72   >>  
rawing rollers to the conductor. The conductor of a finisher card is made in two widths, so that half the width of the film enters one section and the other half enters the other section. These two parallel sheets, split from one common sheet, traverse the two conductors and are ultimately delivered as two slivers about 6 inches above the point or plane in which the 10 or 12 slivers entered, and on to what is termed a "sliver plate." The two slivers are then guided by horns projecting from the upper surface of the sliver plate, made to travel at right angles to the direction of delivery from the mouths of the conductors, and then united to pass as a single sliver between a pair of delivery rollers on the left of the feed and delivery side and finally into a sliver can. In special types of finishing cards, an extra piece of mechanism--termed a draw-head--is employed. The machine illustrated in Fig. 15 is provided with this extra mechanism which is supported by the small supplementary frame on the extreme right. This special mechanism is termed a "Patent Push Bar Drawing Head," and the function which it performs will be described shortly; in the meantime it is sufficient to say that it is used only when the slivers from the finisher card require extra or special treatment. A very desirable condition in connection with the combination of a finisher card and a draw-head is that the two distinct parts should work in unison. In the machine under consideration, the feed and delivery rollers of the card stop simultaneously with the stoppage of the draw-head mechanism. One of the chief aims in spinning is that of producing a uniform thread; uniform not only in section, but in all other respects. A so-called level thread refers, in general, to a uniform diameter, but there are other equally, if not more, important phases connected with the full sense of the word uniform. It has already been stated that in the batching department various qualities of jute are mixed as judiciously as possible in order to obtain a satisfactory mixture. Fibres of different grades and marks vary in strength, colour, cleanness, diameter, length and suppleness; it is of the utmost importance that these fibres of diverse qualities should be distributed as early as possible in the process so as to facilitate the subsequent operations. [Illustration: _By permission of Messrs. James F. Low & Co., Ltd. _ FIG. 16 WASTE TEAZER] However skilfully th
PREV.   NEXT  
|<   26   27   28   29   30   31   32   33   34   35   36   37   38   39   40   41   42   43   44   45   46   47   48   49   50  
51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66   67   68   69   70   71   72   >>  



Top keywords:

delivery

 

mechanism

 

uniform

 

sliver

 

slivers

 
section
 

termed

 

rollers

 

finisher

 

special


machine
 

qualities

 

diameter

 

conductors

 

enters

 

thread

 

conductor

 
simultaneously
 

consideration

 

stated


batching

 

phases

 

spinning

 

general

 

producing

 

refers

 
called
 
important
 

respects

 
stoppage

equally

 

connected

 

strength

 
Illustration
 

permission

 

Messrs

 

operations

 

subsequent

 
distributed
 

process


facilitate

 

TEAZER

 

However

 

skilfully

 

diverse

 

fibres

 
satisfactory
 
mixture
 

Fibres

 

obtain