No such difference can be perceived in the sliver at the drawing frame.
Four fluted drawing portions are usually mounted in one drawing frame, which are set a-going or at rest together.
As the yarns still need to be twisted, they are passed through a roving frame similar to a drawing frame.
The loss which the cotton suffers in the drawing frame is quite inconsiderable.
The delivery rollers of one type of drawing frame, called the "push-bar" drawing frame, and made by Messsrs.
The cans containing the slivers are taken from the card or combing machine (as the case may be) to the drawing frame.
There are three pairs of these rollers, acting on the cotton in every way just as described for the drawing frame.
The push-bar drawing illustrated in Fig. 17, or some other of the same type, is often used as the first drawing frame in a set.
From the drawing frame these "slivers" go to the slubbing machines where it is lightly twisted and wound on bobbins.
The front or delivery roller of the drawing frame is of late years usually made 11⁄4 or 13⁄8 inches in diameter.