ecting rod attached to their bottom ends. In the new
motion the connecting rod is dispensed with, and one joint saved. The
joint that remains is at the foot of the levers that carry the leather
roller. This joint is constructed so that it may be easily altered, and by
its means one of the most delicate settings of the combing machine, viz.,
that of the leather roller, may be made with greater readiness than with
the old system. Further, from the mode of mounting these rollers another
advantage is gained in the facility of setting them. In setting with the
old arrangement, only one end of the roller is adjusted at a time; in the
new, the adjustment sets the ends of two rollers. With regard to the
leather roller also, it was found that as the round brass tubes in which
its ends revolved had very little wearing surface, they got worn into
flats on the outside, and thus worked inaccurately. In the machine under
notice this defect is remedied. The tubes are made square on the outside,
and having ample bearing surface they keep their adjustment perfectly.

On the top of the detaching roller is a large steel fluted roller carried
at each end by a small arm called a "horse tail." In the original machine
this roller simply kept its place upon the detaching roller by its weight,
and when the machine came to be run at high speeds it was found that owing
to its lightness the contact thus obtained was not reliable, the flutes or
ribs of the roller slipping upon those of the detaching roller, which for
good work is undesirable. This is remedied by placing a heavier top roller
in the horse tails, which is made with a broader bearing so as to give
greater solidity to the top roller. Another good idea we noticed in this
machine was in the application of a treble brush carrier wheel, which
permits of the brushes being driven at three different speeds as they
become worn. For instance, when the brushes are new the bristles are long,
and consequently they are not required to revolve as quickly as when the
bristles are far worn. By this improvement the brush lasts considerably
longer than in any other system of machine. Their speed can also be
regulated according to the length of the bristles, and the change from one
speed to the other can be effected in a very few minutes.

A common defect in combing machines is the flocking that frequently
happens. This is the filling up of the combs on the cylinder with dirt and
cotton, which the brush fa