Improvements in Gig Mills.
Year: 1895

page_text: Date of Application, 17th May, 1835
Complete Specification Left, 28th Jan., 1896-Accepted, 29th Feb., 1896
PROVISIONAL SPECIFICATION.
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
follows:-
--
My improvements in gig mills relate to an appliance for putting tension on the
raising rollers composing a raising cylinder.
In carrying my improvements into effect I employ an internally toothed wheel
loose on the cylinder axle and geared with each raising roller axle, or a friction clip
or ring embracing a series of pulleys on the raising roller axles. This internally
toothed wheel friction clip or equivalent may have external teeth to form a toothed
wheel for a gear or a chain wheel for a chain by which it is geared or connected
to a gear or chain wheel as the case may be fixed on a shaft or other centre the
axial movements of which are controlled by a tension pulley and brake or other
suitable adjustable tension device.
If found advantageous the cloth tension roller might be geared or connected by
a belt or otherwise to the shaft or other centre which governs the movements of the
aforesaid internally toothed wheel, friction clip or equivalent.
The foregoing arrangement would be duplicated in the case of a double action
machine that is to say a machine in which some of the raising rollers have their
card teeth set in one direction and the remainder have theirs set in the opposite
direction.
Dated this 16th day of May 1895
H. B. BARLOW & GILLETT,
Agents for Applicant.
UOBIL DELE
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 improvements in gig mills relate to an appliance for putting tension on the
raising rollers composing a raising cylinder.
In carrying my improvements into effect I employ an internally toothed wheel
loose on the cylinder axle and geared with each raising roller axle, or a friction clip
or ring embracing a series of pulleys on the raising roller axles. This internally
toothed wheel friction clip or equivalent may have external teeth to form a toothed
wheel for a gear or a chain wheel for a chain by which it is geared or connected to
a gear or chain wheel as the case may be fixed on a shaft or other centre the axial
movements of which are controlled by a tension pulley and brake or other suitable
adjustable tension device.
And in order that my invention may be fully understood and readily carried into
PiQ27

page_text: effect I will describe the accompanying two sheets of drawings reference being had
to the figures and letters marked thereon.
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 improved appliance for putting tension on the raising
rollers composing the raising cylinder.
Figures 3 and 4 are similar views to Figs. 1 and 2 respectively of an alternative
arrangement..
Similar letters refer to similar parts throughout the several views.
The
In the arrangement illustrated by Figs. 1 and 2 the main cylinder is shown
composed of a series of raising rollers a the axles 6 of which are supported in
two discs c fixed upon the shaft d which is supported in bearings in the frame e
and is driven by a belt and a pair of fast and loose pulleys ffi as shown, or by
any other convenient and suitable driving gear. On one end of each raising roller
axle b is fixed a pinion g which gears into the internal teeth of an internally and
externally toothed wheel h mounted loosely upon the cylinder shaft d.
external teeth of the wheel h gear into a pinion i fixed on a short shaft j on which is
also fixed a pulley k. The shaft ; is supported in bearings in brackets and a band m
secured at one end to the frame at e is passed round the pulley k and a tension
pulley n and is fastened at the other end to the frame at e². The tension pulley n
is mounted in a block fitted to slide on the frame e and is adjustable by means of
a screw and hand wheel o. The cloth to be raised or napped is led over under
and round guides 9 9 9 9³ to a cloth tension roller r round which it passes to
guides to the raising cylinder up over the driven cloth drawing rollers at
the top of the machine thence down to the guides 777, up over the driven cloth
drawing rollers and down through an ordinary plaiting down device t by means
of which it is batched on the floor. The cloth tension roller r is fixed on a shaft j
on which is also fixed a pulley k₁ and a band m¹, secured at one end to the frame,
is passed round the pulley and a tension pulley n' and is fastened at the other
end to the frame. The tension pulley n' like the tension pulley n is mounted in a
sliding block adjustable by means of a screw and hand wheel o².
In the alternative arrangement illustrated, as applied to a double action machine,
by Figs. 3 and 4, I show friction clips u ul mounted loosely on the cylinder shaft d
one near either end and embracing a series of pulleys g' on the axles of the
raising rollers.
In the example shown the raising rollers a are alternately pile and
counterpile that is to say each alternate roller has its card teeth set in the same
direction as that in which the cloth travels, while the remaining or counterpile
rollers have their card teeth set in the opposite direction. Consequently it is
necessary to have two tension appliances one for each set of rollers and in this
instance the friction clip u embraces the pulleys g¹ set at one end of the axles of
one series of raising rollers and the friction clip u embraces the pulleys gl set at
the other end of the axles of the other series of raising rollers.
In this case also instead of direct gearing the friction clips u u¹ are connected
respectively by arms u² to two chain wheels which are also mounted loosely on
the cylinder shaft d and are geared by chains w with two chain wheels 2 fixed on
the shaft which in this instance extends from side to side of the machine and has
a pulley k and tension appliance as in the arrangement Figs. 1 and 2.
In both the arrangements shown the cloth is traversed in the direction indicated
through the machine in any convenient way and the raising rollers a attack the
cloth as the cylinder shaft d revolves and are held to their work by the tension of
the band m on the pulley which resists the tendency of the gear e in the first
instance and the friction clips u u' in the second instance to turn on their axis, this
resistance being greater or less according to the amount of tension put on the
band m by means of the screw and hand wheel o.
I wish it to be clearly understood that I do not wish to confine myself to the
tension pulley, band, and adjusting screw as any other suitable and convenient form
of brake or tension appliance might be employed to control the movement of the
shaft or other centre.
:

page_text: If found advantageous the cloth tension roller in either arrangement instead of
having a separate tension appliance may be geared or connected by a crossed belt
as shown in Fig. 4 or otherwise to the shaft ; or other centre which governs the
movements of the wheel e friction clip or equivalent.
Having now particularly described and ascertained the nature of iny said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The combination with an internally toothed wheel friction clip or equivalent
geared with or embracing a series of gears or pulleys on the raising roller axles,
said toothed wheel friction clip or equivalent being geared or connected to a gear
or chain wheel the axle of which is controlled by a tension pulley an 1 brake or
other suitable adjustable tension device whereby the action of the raising rollers on
the cloth is regulated substantially as herein set forth.
2. The combination with the raising rollers a the gears 9 and the internally and
externally toothed wheel and the gear i, of the adjustable tension device shown
or an equivalent device substantially as herein described and as illustrated by
Figs. 1 and 2.
3. The combination with the raising rollers a, the pulleys g', the friction clips u u³,
the chain wheels v, chains w, and chain wheels 2, of the adjustable tension device
shown or an equivalent device substantially as herein described and as illustrated
by Figs. 3 and 4.
4. The combination with the raising rollers, and a tension device for controlling
the movements of the toothed wheel, friction clip or equivalent, of the cloth tension
roller connected to and governed by said tension device substantially as herein set
forth.
5. The several arrangements and combinations 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 January 1896.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicant.