A New or Improved Means or Method of Drawing Wool off the Combs of Combing Machines.
Year: 1897

page_text: Date of Application, 13th Oct., 1897
Complete Specification Left, 13th July, 1898-Accepted, 13th Oct., 1898
PROVISIONAL SPECIFICATION.
A New or Improved Means or Method of Drawing Wool off the
Combs of Combing Machines.
We, JOSEPH HAYES, of 16, St. Margaret's Terrace, Great Horton, near
Bradford, in the County of York, Electrical Engineer, and GEORGE HERBERT
BRAYSHAW, of 2, St. Margaret's Terrace aforesaid, Worsted Spinner, do hereby
declare the nature of this invention to be as follows:-
This invention relates to a new or improved means or method of drawing wool
off the combs of combing machines, and its primary object is to dispense with
the leathers commonly employed particularly in Noble's combs.
For this purpose we use a pair of drawing rollers one of which is preferably
made larger than usual. This larger roller is made hollow and the portion of
its periphery which comes in contact with the fibres is perforated with numerous
small perforations. Means are provided for withdrawing air from the interior
of the hollow roller consequently there is an in-rush of air through the said
perforations and the fibres drawn off are held against the periphery of the roller
by the current of air and are carried round to the point where it is desired to
remove them and convey them away in the form of a sliver. The perforations
in the periphery of the hollow roller between the points at which the fibres come
in contact with and leave the roller that is to say the perforations in the portion
not covered by the fibres may be masked or closed by a stationary plate or division
which may be located either inside or outside the roller. A fixed plate or knife
or other suitable means may be employed to take off or detach the slivers from
the roller.
The air may be pumped or drawn from the roller in any convenient way. In
one arrangement the lower face of the roller may be partly cut away and a fixed
disc fitted in through which the air passage passes. The masking piece or pieces
may be fixed to this disc. Or a hollow shaft may be used and the air passage
formed down it.

page_text: BRAYSHAW, of 2, St. Margaret's Terrace aforesaid, Worsted Spinner, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to a new or improved means or method of drawing wool
off the combs of combing machines, and its primary object is to dispense with
the leathers commonly employed particularly in Noble's combs.
For this purpose we use a pair of drawing rollers one of which is preferably
made larger than usual. This larger roller is made hollow and the portion of
its periphery which comes in contact with the fibres is perforated with numerous
small perforations. Means are provided for withdrawing air from the interior
of the hollow roller consequently there is an in-rush of air through the said
perforations and the fibres drawn off are held against the periphery of the roller
by the current of air and are carried round to the point where it is desired to
remove them and convey them away in the form of a sliver. The perforations
in the periphery of the hollow roller between the points at which the fibres come
in contact with and leave the roller that is to say the perforations in the portion
not covered by the fibres may be masked or closed by a stationary plate or division
which may be located either inside or outside the roller.
To fully describe our invention reference is made to the accompanying sheet
of drawings forming a part of this specification, in which similar letters of
reference indicate corresponding parts in each of the figures.
Figure 1, represents a plan view of such parts of a Noble's combing machine
as are necessary to illustrate the application of our improvements.
Figure 2, is a sectional elevation on a larger scale of the drawing off rollers.
Figure 3, is a section on the broken line a, b Figure 2, and Figure 4, is a
plan view of the same on a still larger scale.
In Figure 1, A is the large circle and B, B the small circles, the two pairs of
drawing off rollers nearest to the top of the sheet are shown without the pressure
regulating and bearing brackets for the " "rollers in order to show the
rollers in full.
press
The rollers C are each mounted on a hollow standard 1) fixed to the bottom or
gearing plate E of the comb and are driven by the shaft F projecting through
the bush G in the plate E. The press rollers H preferably covered with hard
rubber or other suitable material are mounted in spring bearings J, J fitting
slots K, K formed in brackets L and M connected together by the usual bar N.
The bracket L is bolted to the bracket 0 projecting from D and the upper
bracket is stayed by its cap P fitting the top of the shaft F. In the bracket L
the pressure is regulated to more or less press the press roller H against the
roller C by screws S bearing against the bearing J. This screw is provided with
a nut T fitting the slot K so that by turning the screw the spring U is more or less
compressed between the nut T and the end V of the slot. The brackets L and M
for the drawing off rollers for the small circles may be both made like this but
the brackets M for the drawing off rollers for the large circle are preferably
made with the screw in the reverse direction. In this case the end of the screw
is fixed to the bearing J and the spring U is compressed between the cross
In addition
piece W fixed in the slot K and the rotatable nut Y on the screw.
to the press rollers H we prefer in each case to use an additional roller H2 to
assist in drawing off the fibres as well as prevent the rollers H from "lapping."
For this reason the brackets L and M are made with extra slots K2 in which
the rollers H³ are mounted in the same way as the rollers H in the slots K.
The fibres a (Figure 1) are drawn off in the usual way as they reach the draw-
ing off rollers and the sliver of fibres after leaving the "nip" of the rollers clings
to the perforated periphery of the roller C and is carried round with it until
drawn away therefrom as shown either to pass away from the comb or to join the
drawing off rollers of the small circle. The air is drawn out of the standard 1)
through holes into the branch pipes d (shown by the broken lines Figure 1)

page_text: coupled to an exhaust passage e in communication with a suitable fan or its
equivalent.
A mask g may be fixed inside of C to cover the holes or a part of the holes not
covered by the sliver.
We may cover the perforated periphery of the rollers C with perforated rubber
or other suitable material. In this case the rollers H and H2 may be all metal.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:-
-
1. A hollow drawing-off roller having a perforated periphery, substantially as
herein shown and described.
2. The combination with a hollow drawing-off roller of the mask g, substan-
tially as herein shown and described.
3. The combination with a hollow perforated drawing-off roller of a hollow
support in communication with the interior of said roller and provision for with-
drawing air therefrom, substantially as herein shown and described.
Dated this 11th day of July 1898.
DRACUP & NOWELL,
Patent Agents, Bradford.