IMPROVEMENTS IN COMBING MACHINES
Year: 1887

page_text: Date of Application, 19th Nov., 1887
Complete Specification Left, 18th Aug., 1888
Complete Specification Accepted, 28th Sept., 1888
We, BENJAMIN ALFRED DOBSON of Kay Street Works Bolton in the County of
Lancaster Machine Maker and JOHN HILL of the same place Foreman do hereby
declare the nature of said Invention for IMPROVEMENTS IN COMBING MACHINES to
be as follows:-
Our invention relates to improvements in combing machines for cotton and other
fibrous materials and particularly to combing machines made under the Patent of
Clark (La Société Bourcart fils et Cie.) No. 10357 dated August 12th 1886 and in
some cases also to ordinary combing machines made on Heilman's principle.
Our improvements consist mainly in an arrangement for making the bottom
fluted detaching roller partially or wholly independent of its usual positive driving.
In applying our improvements to a combing machine constructed under Clark's
(Bourcart's) said Patent where the backward motion is dispensed with we do not
require any positive driving for the fluted roller as in said Patent but we bring the
leather detaching roller on to the fluted segment at the proper time and thus by
frictional contact between the said roller and segment obtain the means for an exact
speed of driving we may also divide the long fluted detaching roller into lengths or
sections of either single heads or double heads and this enables us when required to
make the bottom fluted detaching rollers with loose bosses or in convenient lengths
whereby we are enabled to caseharden them.
In applying our improvements to an ordinary Heilman's comber we should by an
arrangement of cam or suitable equivalent take the forward motion driving power
away from the bottom fluted detaching roller and by easing the bearings of the said
roller allow it to be driven by frictional contact with the fluted segment.
By means of our improvements we succeed in driving the detaching motion at
precisely the same speed as the fluted segment but without the use of positive gearing
and thus avoid ruffling the cotton or fraying the leather piecing roller and thereby
improve the piecing of the fibre.
1201

page_text: Improvements in Combing Machines.
We BENJAMIN ALFRED DOBSON of Kay Street Works Bolton in the County of
Lancaster Machine Maker and JOHN HILL of the same place Foreman, do hereby
declaro 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:
Our invention relates to improvements in combing machines for cotton and other
fibrous materials and particularly to combing machines made under the Patent
of Clark (La Société Bourcart fils et Cie.) No. 10,357 dated August 12th 1886 and
in some cases also to ordinary combing machines made on Heilmann's principle.
Our improvements consist mainly in an arrangement for making the bottom fluted
detaching roller partially or wholly independent of its usual positive driving,
In applying our improvements to a combing machine constructed under Clark's
(Bourcart's) said Patent where the backward motion is dispensed with we do not
require any positive driving for the fluted detaching roller as in said Patent but we
bring the leather detaching roller on to the fluted segment at the proper time and
thus by frictional contact between the said roller and segment obtain the means for
an exact surface speed of driving we may also divide the long fluted detaching roller
into lengths or sections of either single heads or double heads and this enables us
when required to make the bottom fluted detaching roller with loose bosses or in
convenient lengths whereby we are enabled to case harden them.
In applying our improvements to an ordinary Heilmann's comber we should by an
arrangement of cam or suitable equivalent take the forward motion driving power
away from the bottom fluted detaching roller and by easing the bearings of the said
roller allow it to be driven by frictional contact from the fluted segment through the
leather detaching roller.
By means of our improvements we succeed in driving the fluted detaching roller
at precisely the same surface speed as the fluted segment but without the use of
positive gearing and thus avoid ruffling the cotton or fraying the leather piecing
roller and thereby improve the piecing of the fibre.
And in order that our Invention may be fully understood and readily carried into
effect we will describe the accompanying four Sheets of Drawings reference being had
to the figures and letters marked thereon.
Fig. 1 is a transverse vertical section of the main portion of a combing machine
fitted with our improvements.
Fig. 2 is a similar view showing a portion of the gearing.
Figs. 3 and 4 are two views on an enlarged scale of the leather detaching and
bottom fluted detaching rollers respectively partly in section.
a designates the frame, the main driving shaft shown only in Fig. 2, c the comb
cylinder which is made up of two comb segments and two fluted segments as shown,
the cylinder shaft, d the lap of fibre to be combed which rests upon the pair of
fluted rollers d' d¹; d³ is the lap plate; e e¹ the pair of feed rollers which receive an
、 ་1

page_text: frame a.
intermittent rotary motion; ff the jaws of the nipper and g the vibrating comb.
These parts are all of the ordinary known construction and operate in the usual way
as hereinafter more particularly described. The smooth leather or other roller h
which in this arrangement acts as a detaching and also as a piecing roller turns in
loose bushes h¹ see Fig. 3, the ends of these bushes are square and the ends of the
weight hooks fit upon the square portion see Fig. 1, and weight the roller by
means of a rod ¹, chain and weight or a spring secured at the lower end to the
When the roller rests upon the fluted segments it lies against and drives
by frictional contact the bottom fluted detaching roller k, and a movable cradle or
jaw which is concentric with the bottom fluted roller k receives an intermittent
reciprocating motion by the means subsequently specified whereby the roller his
raised out of contact with the fluted segment and allowed to fall again at the desired
times. By this means the combined detaching and piecing roller h bears upon the
fluted segments of the comb cylinder c as they pass beneath it and so transmits
motion to the bottom fluted detaching roller k and top roller which thus turn at the
same surface speed as the fluted segments on the comb cylinder and at the moment
when the fluted segments are passing beneath it the roller is being pressed down by
the weighting device consisting of the parts i. The axle of the bottom fluted
detaching roller k rests in loose bushes k¹, see Fig. 4, carried by the frame a and
these bushes form the fulcrum upon which the jaw oscillates. The upper delivery
roller bears upon the roller k from which it takes its motion and is supported at
each end in a bearing l¹ secured upon a projection on the cradle or jawj: m is the
sliver tin and nn are the ordinary delivery or calender rollers which are driven
positively as usual by gearing not shown.
The following is the operation of combing
The lap of fibre d is uncoiled intermittently by the rotary motion of the fluted
rollers d' d¹ and is drawn forward over the lap plate by the intermittent rotary
motion of the pair of feed rollers e e¹ through the nipper jaws ff¹ which are opened
and closed at the proper time by suitable mechanism at the moment the nippers ff
open the jaw j descends and allows the detaching roller h to drop on to one of the
fluted segments of the comb cylinder c and simultaneously the vibrating comb g
descends and retains the mass of fibres and combs the tail ends of those which are
carried forward between the comb segment and roller in its rotation. The jaw j
having descended leaves an opening between it and the roller through which the
front ends pass and are then superposed upon the ends of the preceding fibres already
combed whereby the piecing up is effected the united fibres passing between the pair
of rollers and over the sliver tin m to the pair of calender delivery rollers n n in
the form of a continuous sliver. When the proper quantity of fibres have entered
between the roller h and the jaw j the latter rises and with the roller h forms a nip
which arrests the movement of the fibres and also that of the roller the latter being
slightly raised to allow the tail ends of the fibres still nipped between the said roller
and the jaw j to be again combed by the next comb segment in passing. At the
moment when the jaw j raises the roller as described the rotary motion given to
the roller k while the jaw remained open and the roller h was on the fluted segment
of course ceases until the jaw is again lowered at the next combing operation.
The reciprocating movement of the jaw j about the axle of the roller k is obtained
by means of the rod connected by a knuckle joint to an arin j³ fixed upon a shaft s
upon which is also fixed a lever s¹ see Fig. 2 with a roller så at its extremity which
roller runs in a groove in a two lift cam fixed upon the shaft r which is driven by
means of a spur wheel fixed thereon from a wheel c³ fixed on the cylinder shaft c³.
On the shaft is also fixed another cam which by suitable connections opens and
closes the nipper jaw f.
2'
Although we have shown and described our improvements applied to a combing
machine with one leather detaching roller h which acts as a detaching and piecing
roller it is obvious that an independent piecing or detaching roller can be used in
addition to the roller in any case the fluted roller k would be driven by friction
from the segments of the comb cylinder.

page_text: 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. In a combing machine the arrangement of the parts herein shown and described
or any equivalent arrangement whereby we are enabled to dispense with gearing and
drive the nest of rollers / kl or their equivalents by frictional contact only from the
fluted segments on the comb cylinder.
2. The construction of fluted detaching rollers made in lengths of single or
double heads mounted in loose bushes carried by the frame as and for the purposes
described.
3. The construction combination and arrangement of parts forming our improve-
ments in combing machines substantially as described and as illustrated by the
accompanying Drawings.
H. B. BARLOW,
17, St. Ann's Square, Manchester,
Agent for Applicants.