Improvements in Gig Mills.
Year: 1895

page_text: Date of Application, 17th May, 1895
Complete Specification Left, 17th Feb., 1896-Accepted, 21st Mar., 1896
PROVISIONAL SITEUTTIVATION.
Improvements in Gig Mills.
I, CHARLES WOOD, of 14 Ellen Street, Heaton Norris, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
fllows:-
My invention relates to improvements in that class of gig mills for raising and
teasling textile fabrics in which it has hitherto been customary to form the raising
cylinder of a series of raising rollers arranged around a common centre, and my
improvements consist chiefly in a novel construction and arrangement of the gig
barrel or main raising cylinder.
According to my present improvements I propose to form the main raising
cylinder or gig barrel of a series of subsidiary raising cylinders each composed of a
series of raising rollers. The main cylinder is driven and each subsidiary cylinder
is also driven and each raising roller is held to its work by a suitable brake or
tension appliance.
The textile fabric to be raised is suitably guided into and through the machine
so as to be raised on one side only or first on one side and then on the other side in
a continuous process if required.
Dated this 16th day of May 1895.
H. B. BARLOW & GILLETT,
Agents for Applicant.
Improvements in Gig Mills.
I, CHARLES WOOD, of 14 Ellen 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 that class of gig mills for raising and
teasling textile fabrics in which it has hitherto been customary to form the raising
cylinder of a series of raising rollers arranged around a common centre, and my
improvements consist chiefly in a novel construction and arrangement of the gig
barrel or main raising cylinder.
According to my present improvements I propose to form the main raising
cylinder or gig barrel of a series of subsidiary raising cylinders each composed of a
series of raising rollers. The main cylinder is driven and each subsidiary cylinder
is also driven and each raising roller is held to its work by a suitable brake or
tension appliance.
The textile fabric to be raised is suitably guided into and through the machine
so as to be raised on one side only or first on one side and then on the other side in
a continuous process if required.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying four sheets of drawings reference being had
to the figures and letters marked thereon.

page_text: Figure 1 is a side elevation and Fig. 2 a front view with some of the parts
omitted, of a gig mill fitted with my improvements.
Figures 3 and 4 are similar views to Figures 1 and 2 respectively, of an alternative
arrangement according to my improvements.
Similar letters refer to similar parts throughout the several views.
In the arrangement illustrated by Figures 1 and 2,-a designates the main cylinder
shaft on which are fixed a pair of discs b¹ which support the shafts c of a series
of four subsidiary raising cylinders, each composed of a series of four raising
rollers d, the axles e of which are supported in discs fixed on the shafts c.
The main driving shaft g has a pair of fast and loose pulleys h² fixed on it and
is driven by a belt, not shown, and on the driving shaft g is fixed a pulley i which
transmits motion by a belt j to a pulley k¹ fixed on a shaft k on which is also fixed
a pulley which drives by a belt a pulley a fixed on the main cylinder
shaft a.
The series of subsidiary cylinders, which compose the main raising cylinder, are
driven from a grooved pulley m fixed on the driving shaft g by a band n passing
round a series of grooved pulleys o fixed on the axles c of the subsidiary cylinders.
The series of raising rollers & are held to their work whilst attacking the fabric
to be raised by a band p which passes round a series of grooved pulleys q fixed on
the axles e of the raising rollers d and a series of grooved carrier pulleys ¹ mounted
loosely on the axles r of the cloth guide rollers which are carried by and revolve
with the discs bb. The band p is guided over two grooved carrier pulleys ² round
a grooved pulley s¹ (shown more clearly in either of the detail views Figs. 5 and 6)
fixed on a shaft s on which is also fixed a teusion pulley s². A brake or tension
band t fastened at one end to the frame at u¹ passes round this tension pulley ²
and an adjustable tension pulley v and is fastened at the other end to the frame at u².
The pulley is carried in a slide block v¹ and is adjusted by means of a screw and
hand wheel 2 so as to regulate the tension on the band t.
The cloth w to be raised is led through the machine round the gig barrel over
under and round suitable guides and tension and drawing rollers and is drawn in the
same direction as that in which the main cylinder shaft a and subsidiary cylinders
are driven.
As the grooved pulleys 9 on the axle e of each raising roller d by the revolution
of the main cylinder shaft a and the revolution of each subsidiary cylinder is in
turn brought into contact with the band p the roller d upon which the said pulley
is fixed is held to its work and prevented from turning freely on its axis and
consequently acts upon and naps or raises the surface of the cloth, the effective
action of the raising roller being determined by the regulation of the band p which
is effected by the degree of tension put upon the brake band t by the tension
pulley and adjusting screw v².
In the arrangement illustrated by Figures 3 and 4 the construction is
substantially the same as in Figures 1 and 2, but in this case there six instead
of four subsidiary cylinders and of these cylinders three are driven in one
direction and the remaining three in the opposite direction. This driving of the
subsidiary cylinders necessitates a duplicate arrangement of belts and grooved
pulleys, that is to say, there are two grooved pulleys m m¹ fixed on the driving
shaft and from the pulley m an open band n passes round a series of three grooved
pulleys o fixed at one end of the shafts c of three of the subsidiary cylinders, while
from a second grooved pulley m² a crossed band n¹ passes round a second series of
three grooved pulleys o' fixed at the other end and on the shafts c of the three
remaining subsidiary cylinders.
It will thus be seen that three of the subsidiary cylinders are driven in the same
direction as the main cylinder shaft a and the remaining three (alternate cylinders)
in the opposite direction.
For the sake of clearness I have only shown the bands n n' each passing over a
series of three grooved pulleys o o¹ fixed respectively on opposite ends of the
shafts c; but it will be readily understood that I might have similar pulleys

page_text: mounted loosely at the other ends of the shafts c to act as guides for the bands n n'
so that each band in this case would pass over a series of six grooved pulleys, three
of which would be fast, and three loose on the shafts c.
In the preceding arrangement the raising rollers d are shown with all their card
teeth set in the same direction as that in which the cloth is travelling, but in this
case two of the raising rollers d in each group of four have their teeth set in one
direction and the remaining two (alternate rollers) have their teeth set in the
opposite direction.
With this mode of clothing the raising rollers it is preferable to have a
duplicate arrangement of brake or tension appliance to hold the two series of
raising rollers to their work when attacking the cloth. On the axles e of all
the raising rollers d which have their card teeth set in the same direction are
fixed a series of grooved pulleys and on the axles e of the remaining raising
rollers but at the opposite ends are fixed a second series of grooved pulleys q¹.
Two bands are employed, one of which passes round the series of grooved
pulleys 9 and the other passes round the series of grooved pulleys q', each band
passing over its own series of grooved carrier pulleys r which revolve with the
main cylinder discs bb and also being guided by grooved carrier pulleys ²
round grooved pulleys & mounted on studs s on opposite sides of the machine as
clearly shown in the detail views, Figs. 5 and 6. In this case each pulley s¹ is
formed with its tension pulleys and has a separate brake or tension band t
passing round a tension pulley v carried in a slide block and adjustable by
means of a screw and hand wheel v² as in the preceding arrangement.
The cloth w to be raised is led from the stillage through the machine over
under and round suitable guides and tension and drawing rollers in the direction
indicated by the arrows, Fig. 3, passing down say on the left hand side of the
gig barrel and being raised on one side and then reversed by being led under the
stillage and up again over the top of the machine passing down on the right hand
side of the gig barrel and being raised on the other side whence it passes up again
and down through the plaiting down device z.
I wish it to be clearly understood that although I have shown in one arrangement
four, and in the other arrangement, six subsidiary cylinders, I do not confine myself
to any particular number of subsidiary cylinders as any suitable number may be
employed each composed of any convenient number of raising rollers. Instead of
the driving shown and described any alternative driving may be used for the
main cylinder shaft and subsidiary cylinders and any other suitable form of brake
or tension appliance may be employed to hold the raising rollers to their work
whilst attacking the cloth, also instead of having two brakes or tension appliances
as specified in the second arrangement, one tension appliance only may be used.
In each of the arrangements shown and described I prefer to drive the main
cylinder shaft so that the circumferential speed of the main cylinder shall be at
or about the same speed as that at which the cloth is travelling through the
machine, and I prefer to drive the subsidiary cylinders at say from three to four
hundred revolutions per minute.
Again all the raising rollers in one group may have their card teeth set in one
direction and those in the next group may have theirs set in the opposite direction
or it might be in the same direction, and the cloth may be led through the machine
in any manner and in any direction required.
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 arrangement and construction of a main raising cylinder or gig barrel
composed of a series of subsidiary raising cylinders, arranged around the main
cylinder shaft, each subsidiary cylinder being composed of a series of raising rollers
arranged around the subsidiary cylinder shaft.
2. In combination, a driven main raising cylinder composed of a series of driven
i

page_text: -subsidiary raising cylinders, each subsidiary cylinder being composed of a series of
raising rollers, and each raising roller being held to its work by a suitable brake or
tension appliance.
3. The arrangement use and application of a main raising cylinder composed of
-a series of subsidiary cylinders each composed of a series of raising rollers, some of
the subsidiary cylinders being driven in one direction and the remainder in the
opposite direction whereby the cloth can be raised on both sides in one machine and
by one and the same main cylinder substantially as herein described with reference
to Figs. 3 and 4.
4. The general construction combination and arrangement of parts substantially
as herein described and as illustrated by Figs. 1 and 2.
5. The general construction combination and arrangement of parts substantially
:as herein described and as illustrated by Figs. 3, 4, 5, and 6.
Dated this 15th day of February 1896.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicant.