Combing Machines.
Year: 1889

page_text: Combing Machines.
I, FRED UNWIN, of 154, Chaussee-de-Nons, Brussells, in the Kingdom of Belgium,
Mill Manager, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :-
This invention has for its object the arrangement of an apparatus by which the
operation of the dabbing brushes used for pressing the fibre into the circles of
combing machines in such a manner as will enable the comb circles to be run at
an increased speed, with a reduction in the speed of the shaft for operating the
dabbing.brushes, and thus to reduce the vibration of the combing machine without
decreasing the amount or weight of fibre passing through the same, but on the
contrary to increase the product of the machine.
It is well known that the speed at which the comb circles can be run, is limited to
the speed at which the dabbing brushes can be operated.
In describing my invention in detail, reference is made to the accompanying
drawings, in which
-
Fig. 1. represents a side view of my apparatus with a part cut away to more clearly
show the interior.
Fig. 2. a front view with part in section, and,
Fig. 3. a general view, showing one of the comb pillars of a
machine, and how the apparatus may be driven.
"Nobles" combing
The apparatus is mounted on a box bracket A. placed on the respective pillars B. on
each side of a "Nobles" combing machine, and secured to the said pillars B. in the
usual manner
the crank, or eccentric shaft C. being mounted therein at right angles
to a centre line drawn through the said pillars, and is driven by a belt or cord D. from
a pulley E. on the driving shaft F. fitted in the usual position on the upper portion of
the pillars B. and operated in the ordinary manner.
The shaft C. is provided with three cranks or eccentrics placed thereon hy
preference at an angle of 120 degrees to each other, the first crank or eccentric
having more throw than the other, operates the slide and brush G¹ for pressing the
[Price 6a]

page_text: fibre as it is fed to the maching into the comb circles to the level of the pins; the
other slides and brushes G2 and G³ having a reciprocating motion or stroke equal to
about one half of the first named, press the fibre down to its proper depth in the pins
of the comb circles, and there retain it during the division of the circles; the brushes
of the slides G² and G³ being so adjusted that in combination with the length of the
stroke, they only slightly clear the points of the pins, thereby preventing the fibre
rising above the points of the pins and allowing knots or foreign matter to pass along
with what should be cleared or combed fibre.
The connection between the cranks or eccentrics and the respective brush slides is
accomplished by rods H. each of which is coupled to its respective slide by an
adjustable joint J. and adjustable stud K; the clips or straps L. around the cranks or
eccentrics being by preference connected by studs L' as shown; by which arrange-
ment the straps L. may be kept in easy working contact with the cranks or eccentrics
as the case may be.
By mounting the crank shaft C. at right angles to the centre line between the two
pillars, I am enabled to drive the star dividing wheel M. direct from the pulley N. on
crank shaft C. without the intervention of guide pullies hitherto required to transmit
motion to the same, thereby clearing the space in the centre of the comb and thus
affording better facilities for examining the various parts of the machine.
The crank shaft journals are kept constantly lubricated from the reservoirs R. at
each side of the bracket, the lubricant from the former passing through some porous
material such as a short piece of cane placed in the channel communicating with the
neck or journal, which is formed with an annular recess at S having an open channel
at S¹ communicating with the interior of the box bracket; so that any excess of
lubricant that may be run on to the journal, will not escape on to the outside and drop
upon the fibre, but be conveyed into the interior of the box bracket.
By arranging the cranks or eccentrics in the manner described, the slides and
brushes somewhat balance each other; and by the brushes operating on the fibre
three times for each revolution of the shaft, the speed of the same can be considerably
reduced, and thereby reduce the vibration of the machine caused by the quick motion
of the apparatus when constructed and operated in the usual manner.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what 1
claim is :-
A dabbing apparatus in which the crank or eccentric shaft is mounted at right
angles to a centre drawn between the two pillars B. and provided with cranks or
eccentrics of the same or different strokes, all being arranged substantially. in the
manner shown and described, and for the purpose herein before set forth.
Dated this 16th day of March 1889.