Improvements in Gig Mills.
Year: 1894

page_text: Date of Application, 5th Apr., 1894
Complete Specification Left, 1st Sept., 1894-Accepted, 24th Nov., 1894
Improvements in Gig Mills.
I, CHARLES WOOD, of 76 Oxford Street, Heaton Norris in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to improvements in gig mills for raising or teasing woven
fabrics in which machines the raising cylinders are formed by arranging a series of
suitably clothed raising rollers around a shaft or axis at equal distances from the
same.
Prior to my invention it has been considered essential to impart by means of
countershafts and various other driving motions a variable rotary movement to the
raising rollers in addition to the revolving motion of the cylinder as a whole.
Now the chief feature of my present improvements consists in dispensing with
countershafts chains wheels cones or equivalent driving mechanism for imparting
the rotary motion to the raising rollers, and instead I employ a loose band or
friction clip at each side of the machine which embraces or encircles a series of
pulleys on the axles of the raising rollers. This band or clip is not in any way
held or driven; but simply grips the pulleys tightly enough to cause them to offer
sufficient resistance to the face of the cloth, and so to dress or teasle it as it passes
through the machine.
The cylinder composed of raising rollers as described is driven by any suitable
mechanism at the various speeds required according to the character or quality of
the goods to be raised and the cloth is drawn through the machine by rollers
actuated by adjustable frictional driving or by any other convenient and suitable
motion. I regulate the speed of the cylinder and the travel of the cloth through
the machine until the loose bands or friction clips are practically stationary or only
oscillate slightly upon their axes while the fabric is being properly raised, and any
increase or excess of movement in either direction is an indication of some
irregularity or change in the fabric.
In place of the loose bands or friction clips described I propose to pass a leather
or other band or equivalent part round any desired number of the pulleys on the
axles of the raising rollers at each side of the machine; these bands may or may
not pass over and under suitable guide pulleys and are regulated by movable
tension pulleys so arranged that by adjusting these pulleys more or less tension is
put on the bands and through them on to the raising rollers which are caused to
offer greater or less resistance and so have more or less raising action the
surface of the cloth.
upon
In a modification I propose to place a fast and loose pulley on each end of each
raising roller. When the bands which pass round all the pulleys are on the loose
pulleys the raising rollers offer the minimum resistance to and consequently have
little if any raising action on the cloth but as soon as the bands are moved partially
on to the fast pulleys the rollers begin to resist and this resistance gradually
increases as the bands are moved further on until the maximum resistance and
strongest raising action are attained when the bands are fully on the fast pulleys.
In all cases where counterpile as well as pile raising rollers are employed I
prefer to employ separate bands or belts and corresponding pulleys for the two sets
of raising rollers.
Dated this 4th day of April 1894.
H. B. BARLOW & GILLETT,.
Agents for Applicant.

page_text: Improvements in Gig Mills.
I, CHARLES WOOD, of 76 Oxford Street, Heaton Norris, in the County of
Lancaster, 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 invention relates to improvements in gig mills for raising or teasing woven
fabrics in which machines the raising cylinders are formed by arranging a series of
suitably clothed raising rollers around a shaft or axis at equal distances from the
same.
Prior to my invention it has been considered essential to impart by means of
countershafts and various other driving motions a variable rotary movement to the
raising rollers in addition to the revolving motion of the cylinder as a whole.
Now the chief feature of my present improvements consists in dispensing with
countershafts, chains, wheels, cones or equivalent driving mechanism for imparting
the rotary motion to the raising rollers, and instead I employ a loose band or
friction clip at each side of the machine which embraces or encircles a series of
pulleys on the axles of the raising rollers. This band or clip is not in any way
held or driven; but simply grips the pulleys tightly enough to cause them to offer
sufficient resistance to the face of the cloth, and so to dress or teasle it as it passes
through the machine.
The cylinder composed of raising rollers as described is driven by any suitable
mechanism at the various speeds required according to the character or quality of
the goods to be raised and the cloth is drawn through the machine by rollers
actuated by adjustable frictional driving or by any other convenient and suitable
motion. I regulate the speed of the cylinder and the travel of the cloth through
the machine until the loose bands or friction clips are practically stationary or only
oscillate slightly upon their axes while the fabric is being properly raised, and any
increase or excess of movement in either direction is an indication of some
irregularity or change in the fabric.
In place of the loose bands or friction clips described I propose to pass a leather
or other band or equivalent part round any desired number of the pulleys on the
axles of the raising rollers at each side of the machine; these bands may or may
not pass over and under suitable guide pulleys and are regulated by movable
tension pulleys so arranged that by adjusting these pulleys more or less tension is
put on the bands and through them on to the raising rollers which are caused to
offer greater or less resistance and so have more or less raising action upon the
surface of the cloth.
In a modification I propose to place a fast and loose pulley on each end of each
raising roller. When the bands which pass round all the pulleys are on the loose
pulleys the raising rollers offer the minimum resistance to and consequently have
little if any raising action on the cloth but as soon as the bands are moved partially
on to the fast pulleys the rollers begin to resist and this resistance gradually
increases as the bands are moved further on until the maximum resistance and
strongest raising action are attained when the bands are fully on the fast pulleys.
And in order that my invention may be fully understood and readily carried
into effect I will describe the accompanying six sheets of drawings reference being
had to the figures and letters marked thereon.
Figure 1 is a side elevation of a gig mill fitted with my improvements, and
Fig. 2 is a sectional plan view of Fig. 1.
Figs. 3 and 5 and Figs. 4 and 6 are similar views to Figs. 1 and 2 respectively
of two alternative arrangements according to my invention.
Similar letters refer to similar parts throughout the several views.

page_text: Referring first to Figures 1 and 2, a designates the frame of the machine, 6 the
cylinder shaft on which are fixed a pair of discs c, in which are journalled the series
of card clothed raising rollers d composing the raising cylinder. Near each end of
the axle d' of each raising roller d is fixed a pulley e and each of these two series
of pulleys e is encircled by a band clip which grips them tightly enough to cause
the raising rollers d to act with sufficient strength on the surface of the fabric to
be raised. Each band clip is connected by a clamp g' to a spider wheel g which
is mounted loosely upon the cylinder shaft and by its movements, when the gig
mill is raising, acts as an indicator to show whether the fabric is being properly
raised. The cylinder composed of raising rollers d as described may be driven by
any suitable mechanism at the various speeds required according to the character
or quality of the goods to be raised.
In the example illustrated by the drawings the cylinder is shown driven by a
pair of bevel gears which can be driven at varying speeds from the driving
shaft i by the following parts:-
h
Near one end of the shaft i are a pair of fast and loose pulleys and at the other
end a friction disc which is in contact with a friction bowl j mounted on a
shaft to which is secured the bevel gear h¹ the other bevel gear being fixed on
the cylinder shaft b. A forked lever mounted on a screw k¹ engages with a
recess in the boss of the bowl; and by turning a hand wheel k² fixed on this screw
the position of the bowl can be adjusted relatively to the disc and the speed of
the cylinder shaft b and the discs c can be varied and regulated as required; on the
opposite end of the cylinder shaft 6 is secured a friction disc b' which drives a
friction bowl mounted upon a shaft to which is secured a bevel gear 12 in gear
with a bevel gear m' secured to the axis of the cloth drawing through roller m.
In order to regulate the speed of this roller m a hand wheel 3 fixed on a screwed
shaft is employed to move a forked lever which engages with the boss of the
friction bowl for the purpose of adjusting the position of the bowl relatively to
the friction disc b¹.
On the opposite end of the drawing through roller m is a toothed chain wheel m³
from which a chain n passes over chain wheels n', n³, n³, and carrier wheels n*, see
Fig. 1, for the purpose of driving the series of cloth drawing rollers which are
fixed upon the axles of the wheels n', n², n³.
The path of the fabric o can be traced from the batch of cloth on the floor under
and over guide rollers 1, 2, 3, round a tension pulley p under guide rollers 4 and 5
and thence on to one or more of the raising rollers d'over a guide roller 6 and the
chain driven roller n³ thence under the guide rollers 7 and 8 round the chain
driven roller n² thence under the guide rollers 9 and 10 and round the chain driven
roller n¹ thence under the guide rollers 11 and 12, round the drawing through
roller m under the guide rollers 13 and 14, and away round guide rollers 15, 16,
to a drawing roller 17 and the usual plaiting down device 18 to the batch on the
floor. The plaiting box 18 is pivoted at 19 and actuated by a link 20 pivoted
at 21 to a crank wheel 22. The drawing roller 17 has fixed ou its axle a pulley 23
which is driven by a crossed belt 24 from a pulley 25 on the axle of the chain
driven roller n² and the drawing roller 17 has also fixed on its axle a pulley 26
which by a belt 27 drives the crank wheel 22.
Below the cylinder is a brush 9 to clean the raising rollers d which brush is
driven by a belt r from a pulleys on a studs on which is also fixed a pulley s²
driven by a belt s³ from a pulley s on the driving shaft i.
When the fabric has been guided into and through the machine in the manner
already described, the cylinder, and the drawing roller m are started say for
example at their slowest speeds, the effect of this will be that the cylinder as a
whole will revolve in one direction as indicated by the arrow Fig. 1 and the raising
rollers d, being a part of the cylinder, revolve about the shaft b as a centre and at
a surface speed considerably greater than that of the travelling fabric with which
they are in contact. The teeth of the card clothing on the raising rollers d are
pointed in the direction of the cloth's travel and as they strike against the cloth

page_text: by reason of such contact the raising rollers are turned backward in the reverse
direction to that indicated by the arrow Fig. 1 to an extent determined by the
pressure exerted upon the pulleys e by the friction band f, and to attain this result
the pulleys e must be of larger diameter than the raising rollers d. Any backward
movement of the spider wheels g indicates that the speed of the cylinder must be
increased and this is effected by turning the hand wheel k² until the spider wheel
remains practically stationary or only oscillates slightly on the cylinder shaft b
while the fabric is being properly raised.
Any increase or excess of movement of the spider wheel g in either direction is
an indication of some irregularity or change in the nature of the fabric.
Although I have shown and described a spider wheel g connected by a clamp g¹
to each band clip f as I prefer to employ such wheels as a convenient means for
indicating the action of the raising rollers d upon the fabric I wish it to be clearly
understood that they do not form an essential feature of my invention as they may
he dispensed with and the band clips for similar devices used alone to grip and
control the action of said raising rollers as described.
in
In the alternative arrangement illustrated by Figs. 3 and 4 the cylinder shaft b
may be driven at varying speeds as described with reference to Figs 1 and 2, or
any other convenient manner, or at a constant speed as illustrated, by means of
a pair of fast and loose pulleys t t¹ and a belt from the main driving shaft not
shown, and the cloth also may be travelled as previously described or as shown the
chain n which gives motion to the series of cloth drawing rollers n', n², n³, n², nº, nº,
is driven from a chain wheel u by a pair of gears v v¹ of which the latter is driven
by a belt w and cone pulleys x and y respectively from the cylinder shaft b. The
cloth is travelled through the machine over and under a series of guide rollers,
by means of the series of chain driven drawing rollers in substantially the same
manner as previously described.
The chief feature requiring description is the arrangement of pile and counter
pile raising rollers d that is to say, it will be seen in Figs. 3 and 4 that there are
raising rollers of small diameter for the pile with their teeth set in the same
direction as that in which the cloth is travelling so as to act upon and raise a nap
on the cloth, while the counter pile rollers are of larger diameter and have their
teeth set in the opposite direction to that in which the cloth is travelling so as to
lay the nap.
A double set of pulleys e at each end of the raising rollers is shown
in Fig. 4 with a band clip, in this case a belt fon each set of pulleys.
To regulate the tension of the clips or belts f on the raising rollers d I employ
any suitable number of adjustable tension pulleys 28 actuated by screws 29 and
hand wheels 30 or other suitable appliances so as to increase or diminish the
tension thereby causing the raising rollers to offer greater or less resistance and so
have more or less raising action upon the surface of the travelling cloth.
In operation, all the raising rollers, pile and counter pile, move in one direction
with the cylinder and the effect of the cloth on the rollers with all of which it
comes in contact, is the same as that before described.
Although I have shown and described this arrangement as applied to double
acting machines it may also be applied equally well to single acting machines, that
is to say, to machines with raising rollers having their card teeth set in one
direction only.
In the alternative arrangement illustrated by Figs. 5 and 6 the bands or belts.
(not shown in Fig. 6) embrace a pair of fast and loose pulleys e e¹ respectively on
the axle at each end of each raising roller d.
When these bands or belts are on the loose pulleys e¹ the raising rollers d
offer the minimum resistance to and consequently have little if any raising action
on the cloth but as soon as the bands f are moved further on to the fast pulleys
the raising rollers d begin to resist and this resistance increases as the bands are
moved further on until the maximum resistance and strongest raising action
are attained when the bands f are fully on the fast pulleys e.
The movement of the bands f from one pulley to the other may be effected by

page_text: any convenient belt shifting mechanism as for example by sliding pulleys 31
mounted on shafts 32 and moved to and fro by liuks 33 connected to an arm 34
which is mounted on guides 35 and moved to and fro by its boss which is
threaded and actuated by a screw 36 and hand wheel 37.
In all cases where counter pile as well as pile raising rollers are employed I
prefer to employ separate bands or belts and corresponding pulleys for the two
sets of raising rollers.
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 I
claim is :-
:-
1. The combination with a cylinder composed of a series of raising rollers
supported around its axis, of a loose clipping device flexible or otherwise, such
for example as the band clips or belts f for regulating the resistance and
consequent raising action of said rollers upon the cloth travelling through the
machine substantially as herein set forth.
2. The combination with the raising rollers d and the pulleys e, of the band
clips either with or without the spider wheels 9 substantially as herein set
forth with reference to Figs. 1 and 2.
3. The combination with the raising rollers d, and the pulleys e, of the band
clips substantially as herein set forth with reference to Figs. 3 and 4.
4. The combination with the raising rollers d, of the series of fast and loose
pulleys e e, the bands or belts f and mechanism for shifting the same substantially
as herein set forth with reference to Figs. 5 and 6.
5. The several combinations and arrangements of parts embodying my improve-
ments in gig mills substantially as herein described and as illustrated by the
accompanying drawings.
Dated this 27th day of August 1894.
H. B. BARLOW & GILLETT,
17, St. Ann's Square, Manchester, Agents for Applicant.