IMPROVEMENTS IN COMBING MACHINES
Year: 1881

page_text: LETTERS PATENT to Benjamin Alfred Dobson, of the Firm of Messieurs
Dobson and Barlow, of Bolton, in the County of Lancaster, Machine Maker,
and James Macqueen, of the same Place, Machinist, for an Invention of
"IMPROVEMENTS IN COMBING MACHINES."
PROVISIONAL SPECIFICATION left by the said Benjamin Alfred Dobson
and James Macqueen at the Office of the Commissioners of Patents on the
6th December 1881.
BENJAMIN ALFRED DOBSON, of the Firm of Messieurs Dobson and Barlow, of
Bolton, in the County of Lancaster, Machine Maker, and JAMES MACQUEEN, of
the same Place, Machinist. "IMPROVEMENTS IN COMBING MACHINES."
Our Invention relates to machines for combing cotton and other fibre, and
consists in improvements in apparatus for the nipping, detaching, and piecing of
the fibre.
Wo make our improved nipper for holding the cotton while it is acted upon by
the combing cylinder by mounting on a shaft parallel to the axis of the cylinder
two arms which support a lower jaw, and on the said shaft we mount other arms
which carry a blade which forms the top or moving jaw, the lower jaw terminates
in a sharp straight edge parallel to its shaft and the moving jaw is provided with
an india-rubber cushion extending the length of its edge between which cushion
and the edge of the lower jaw the cotton is held while being combed by the
cylinder; the lower jaw is stationary, and the arms carrying the upper jaw are
keyed to the shaft and actuated by a cam and lever or otherwise.
We make our improved detacher by mounting levers on studs near the front of
the machine these levers carry a shaft parallel to the cylinder and on this shaft is
fixed an oscillating plate. We construct the cylinder preferably with two or more
sets of combing needles, and at a suitable distance from the last row of needles we
insert a cushion of india-rubber or other material, and between this cushion and
the first row of needles of the following set we recess the cylinder so as to allow
All..מז

page_text: the top comb to descend through the fibre without the necessity for raising the
under jaw of the nipper; when the cushion on the cylinder has advanced a
sufficient distance beyond the nipper the edge of the oscillating plate (which is
actuated by a cam or otherwise) is brought into contact with the cushion forming
a nipper which detaches the fibre and draws it through the top comb; in front of
the cylinder at a suitablo distance from the nipper is a fluted roller which has
a backward and forward rotary motion; on top of this roller and in contact with it
we place another fluted roller, this roller is carried by two small levers jointed to
two other levers fixed on a shuft; springs are used to put pressure on the roller;
before the fibre has come in contact with the lower fluted roller the detacher is
raised and the top fluted roller is moved by a cam or otherwise on to the front
end of the fibre which is seized between the two fluted rollers, taken from the
cylinder and delivered by the forward motion of these rollers; the backward
motion of the rollers puts the fibre in position for receiving the next detachment
of fibre which is thus pieced.
Another part of our Invention consists of a new method of nipping and piecing
on the delivery side of "Imbs'" or similar combing machines, also in a method of
constructing and operating the combs whereby they can be cleaned separately by
a single brush. Opposite and parallel to the feeding nipper we place a fixed bar,
and in a recess in this bar we place a fluted roller abovo and bearing on which is
another fluted roller; the top of the bar which is concave comes forward nearly to
the junction of the two rollers; on the front of the bar is a steel plate, the upper
edge of which is bent over the bar and forms a fixed jaw of a nipper, the movable
jaw (or detacher) of which we form by mounting levers on studs and fitting a shaft
parallel to the fixed jaw in one end of these levers; to this shaft is fixed an
oscillating plate, the edge of which is furnished with a leather or other cushion ;
this movable jaw is actuated by a cam or otherwise and it carries the fibre across
the surface of the bar to the pair of fluted rollers which deliver the fibre; the
movable jaw is then lifted and moved forward towards the feeding nipper and
pressed against the edges of the steel plate and securely holds the cotton which has
been placed on it by the feeding nipper.
At one side of each nipper we place a shaft, and on each shaft are fixed a pair of
levers, each pair carrying a blade to which the combs aro soldered; the combs are
raised or lowed alternately by turning the shafts on which the levers are fixed;
a brush below the combs cleans the first comb as it descends, passes to the other
side, returns, meets the other comb and cleans it. When the combs are lifted up
the brush turns round to be cleaned in any ordinary method.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Benjamin Alfred Dobson and Jaines Macqueen in the Great Seal
Patent Office on the 5th June 1882.
BENJAMIN ALFRED DOBSON, of the Firm of Messieurs Dobson and Barlow, of
Bolton, in the County of Lancaster, Machine Maker, and JAMES MACQUEEN, of
the same Place, Machinist. "IMPROVEMENTS IN COMBING MACHINES."
Our Invention relates to machines for combing cotton and other fibre, and
consists in improvements in apparatus for the nipping, detaching, and piecing of
the fibre.
And in order that our Invention may be fully understood and readily carried into
effect, we will describe the accompanying two Sheets of Drawings, reference being
had to the figures and letters marked thereon.
On Sheet 1, Fig. 1 is a sectional elevation, and Fig. 2 is a front elevation, and
Figs. 3, 4, and 5 are detailed views of parts of a combing machine to which our
Invention is applied.
On Sheet 2, Fig. 6 illustrates the second part of our Invention.
We make our improved nipper for holding the cotton while it is acted upon by
the combing cylinder k, by mounting on a shaft a parallel to the axis of the
cylinder k, two arms a', which support a lower jaw, and on the said shaft a we
mount other arms a³, which carry a blade which forms the top or moving jaw, tho
lower jaw terminates in a sharp straight edge parallel to its shaft, and the moving
jaw is provided with an india-rubber cushion extending the length of its edge
between which cushion and the edge of the lower jaw the cotton is held while
being combed by the cylinder; the lower jaw may be stationary or movable, and
with or without springs, and the arms a³ carrying the upper jaw are keyed to the
shaft a and actuated by a cam b, cam lever b₁, and connecting rod b², or otherwise.
We make our new detacher by mounting levers c on studs c', near the front of
the machine, these levers carry a shaft c parallel to the cylinder, and on this shaft
is fixed an oscillating plate c³; we construct the cylinder k preferably with two or
more sets of combing needles, and at a suitable distance from the last row of needles
we insert a cushion of india rubber, or other material, and between this cushion
and the first row of needles of the following set we recess the cylinder so as to
allow the top comb n to descend through the fibre without the necessity for
raising the under jaw of the nipper; when the cushion on the cylinder has
advanced a sufficient distance beyond the nipper, the edge of the oscillating plate c³,
which is actuated by a cam through the lever and connecting rod c, or other-
wiso, is brought into contact with a cushion ², forming a nipper which detaches
the fibre and draws it through the top comb n; in front of the cylinder at a
suitable distance from the nipper is a fluted roller e, which may have a backward
and forward rotary motion; on top of this roller and in contact with it we place
another fluted roller e, this roller is carried by two small levers e, jointed to two
other levers e³, fixed on a shaft e (shown enlarged on Fig. 3), springs are used
to put pressure on the roller; before the fibre has come in contact with the lower
fluted roller e, the top fluted roller e' is moved forward, the detacher c³ is raised by
a cam through the levers c and c, and the top fluted roller e' is moved by a cam
or otherwise on to the front end of the fibre, which is seized between the two fluted
rollers, taken from the cylinder, and delivered by the forward motion of these
rollers; the cotton is then passed through a curved tin, see Figs. 4 and 5, which
lays over the sliver and prevents it from being curled by the calender rollers L, l,
while being drawn through the trumpet m; the backward motion of the rollers

page_text: puts the fibre in position for receiving the next detachment of fibre, which is thus
picced.
Another part of our Invention consists of a new method of nipping and piecing
on the delivery side of "Imbs'"" or similar combing machines, also in a method of
constructing and operating the combs whereby they can be cleaned separately by a
single brush; this part of our Invention is illustrated on Sheet 2, Fig. 6. Opposite
and parallel to the feeding nipper a we place a fixed bar b, and in a recess in this
bar we place a fluted roller c, above and bearing on which is another fluted roller d,
the top of the bar which is concave comes forward nearly to the junction of the
two rollers; on the front of the bar is a steel plato e, the upper edge of which is
bent over the bar and forms a fixed jaw of a nipper, the movable jaw f (or
detacher) of which we form by mounting levers g on studs, and fitting a shaft i
parallel to the fixed jaw in one end of these levers; to this shaft is fixed an
oscillating plate f, the edge of which is furnished with a leather or other cushion;
this moveable jaw is actuated by a cam or otherwise, and it carries the fibro across
the surface of the bar to the pair of fluted rollers, as shown in dotted lines, which
deliver the fibre; the movable jaw is then lifted and moved forward toward the
feeding nipper and pressed against the edge of the steel plate e, and securely holds
the cotton which has been placed on it by the feeding nipper a, a.
At one side of each nipper we place a shaft h, k, and on each shaft are fixed a
pair of levers L, L, each pair carrying a blade m, m², to which the combs are soldered;
the combs are raised or lowered alternately by turning the shafts k on which the
levers are fixed; a brush below the combs cleans the first comb m as it
descends, passes to the other side, returns, meets the other comb m', and cleans it.
When the combs are lifted up the brush turns round to be cleaned by any ordinary
method.
Having stated the nature of the said Invention and described the manner of
performing the same,
We declare that wo claim,-
1. The improved construction and arrangement of parts forming the improved
nipper, herein described and shown on Figs. 1, 2, and 3.
2. The improved form of combing cylinder in combination with the detacher,
arranged and actuated in the manner and for the purpose substantially as herein
shown and described.
3. The combination with the fixed bar band plate e of the movable jaw f,
substantially as and for the purpose described and shown on Sheet 2.
4. Mounting the combs mi, m³, so as to vibrate at different times on separate
centres, and the application of the brush n to clean the same alternately, as
described' and shown.
In witness whereof, I, the said Benjamin Alfred Dobson, for myself and on
behalf of the said James Macqueen, have hereunto get my hand and seal,
this Second day of June, One thousand eight hundred and eighty two.
REN ALF DORSON /rel