Improvements in the Comb Cylinders of Heilmann Combing Machines.
Year: 1889

page_text: Date of Application, 27th Apr., 1889
Complete Specification Left, 26th Oct., 1889-Accepted, 30th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in the Comb Cylinders of Heilmann Combing
Machines.
1, THOMAS WALTER HARDING of the Tower Works, Leeds in the County of
York, Engineer do hereby declare the nature of this invention to he as follows :-
My improvements relate to the Comb Cylinders of the combing machines which are
constructed on Heilmann's system, and in which the tuft of fibre is held by a nip
and submitted to the action of a comb cylinder fitted with rows of pins of graduated
fineness.
Hitherto these comb cylinders have been built up of segments upon the edge of
each of which a row of pins has been soldered.
My improvements consist in forming the Comb Cylinders either in a tube or in
a single or several segments fitted with rows of pins fixed into holes drilled to
receive them. The pins may be set in simple rows as hitherto, but for the finer
rows I prefer to substitute for each simple row of very fine pins, a compound row
of relatively strong pins. These compound rows consist of a group of two or more
rows in which the pins are so placed that each pin tells in the combing. Thus, for
instance, instead of a simple row 88 per inch of pins No. 33 gange, I can use a
compound row consisting of a group of two rows of No. 27 or No. 28 pins set
45 or 50 to the inch, the pins in one row coming opposite the spaces in the other,
so that the compound row gives a resultant pitch of 90 or 100 per inch. This
arrangement is of advantage because it enables fine combing effects to be produced
with relatively strong pins, which are more durable and permit the machines to
produce more work. The rows may be straight or spiral.
Dated this 24th day of April 1889
T. WALTER HARDING.
COMPLETE SPECIFICATION.
Improvements in the Comb Cylinders of Heilmann Combing
Machines.
I, THOMAS WALTER HARDING of the Tower Works, Leeds in the county of
York Engineer, 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 :-
:-
My improvements relate to the comb cylinders of the combing machines which
are constructed on Heilmanns system and in which the tuft of fibre is held by a nip
and submitted to the action of a comb cylinder fitted with rows of pins of graduated
fineness.
Hitherto these comb cylinders have been built up of segments, upon the edge
of each of which a row of pins has been soldered. My improvements consist in
forming the comb cylinders either in a tube or in a single or several segments
fitted with rows of pins fixed into holes drilled to receive them.
The pins may
be set in simple rows as hitherto, but for the finer rows I prefer to substitute for
each simple row of very fine pins, a compound row of relatively strong pins.
These compound rows consist of a group of 2 or more rows in which alternately
the pins are so placed that each pin tells in the combing. Thus for instance instead
of a single row of soldered pins 88 per inch No. 33 gauge, I use a compound row
consisting say of a group of 2 rows of No. 27 pins set each 56 to the inch, the
pins in one row coming opposite to the spaces in the other, so that the compound
row gives a resultant pitch of 112 per inch. This arrangement is of advantage

page_text: because it enables fine combing effects to be produced with relatively strong pins,
which are more durable and permit the machines to produce more work. The rows
may be straight or spiral.
At fig. 1 I shew an end view, and at fig. 2 a partial longitudinal section of a comb
consisting of a single segment set with pins fixed into drilled holes, of which 12 are
simple and 6 are compound rows, these latter consisting of groups of 2 rows,
placed as shewn in plan at fig. 3 (magnified 20 times).
At fig. 4 I shew in plan, (magnified 20 times) the position of the pins in a simple
row set 88 per inch with No. 33 pins, and in comparing this with fig. 3 which shows
in plan (also magnified 20 times) the position of the pins in a compound row, that is,
in this case, a group of 2 rows set 56 per in. No. 27 pins, it will be seen that a
resultant pitch of 112 per inch is obtained with pins relatively much stronger than
No. 33.
These compound rows, permitting of the use of comparatively strong pins, may
be made of pins fixed into drilled holes, and the substitution of drilled rows for
the soldered rows now in use, gives a comb which is more readily cleaned and
repaired.
Instead of being made in one segment containing the whole of the drilled rows,
the comb may be built up of several segments containing one or more rows and
fitted to the cylinder in a similar way to the segments with soldered rows now
used.
Having now particularly described & ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :
(1) The construction and use of comb cylinders in a single or several segments
fitted with rows of pins fixed into drilled holes.
(2) The construction and use of comb cylinders fitted with compound rows in
groups, preferably of 2 rows, set close to each other, with the pins of one row
opposite the spaces of the other, permitting of fine combing effects with relatively
strong pins.
Dated this 25th day of October 1889.
T. WALTER HARDING.