IMPROVEMENTS IN MACHINES FOR RAISING WOOLLEN CLOTH COMMONLY CALLED 'GIes
Year: 1873

page_text: LETTERS PATENT to Thomas Robinson, of Castleton Lodge, Leeds, in
the County of York, Gentleman, for the Invention of “IMPROVEMENTS
IN MACHINES FOR RAISING WOOLLEN CLOTH COMMONLY CALLED 'GIes.'
"
Sealed the 16th January 1874, and dated the 7th August 1873.
PROVISIONAL SPECIFICATION left by the said Thomas Robinson at
the Office of the Commissioners of Patents, with his Petition, on
the 7th August 1878.
I, THOMAS ROBINSON, of Castleton Lodge, Leeds, in the County of
York, Gentleman, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MACHINES FOR RAISING WOOLLEN CLOTH COMMONLY CALLED
Gres,"" to be as follows:-
This Invention has for its object improvements in machines for
raising woollen cloth commonly called "gigs," and the purpose of these
improvements is mainly to enable the machine to turn off an increased
quantity of work with a saving of labor,

page_text: As these machines are commonly constructed the fabric is brought
once only into contact with the raising cylinder at each passage through
the machine.
By my improvements it is brought two or more times in contact with
the raising cylinder at each passage through the machine, and the
extent of the contact can be adjusted at pleasure so as to render the
action of the machine on the fabric more or less severe. There are
three or more cloth rollers arranged around the raising cylinder, and the
fabric to be raised is led to the raising cylinder around one of the cloth
rollers; it passes between this roller and the raising cylinder, then the
fabrio passes over the intermediate cloth roller or rollers, and afterwards
it passes under the last roller of the series between it and the raising
cylinder.
By means of racks and pinions the cloth rollers can be moved around
the raising cylinder so as to increase or diminish the distances between
them, and consequently the extent of the contact of the cloth with the
raising cylinder. This adjustment is effected in such a manner that the
distances between the rollers although variable are always equal the one
to the other.
The flock is removed from the raising cylinder by a revolving hrush 5
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Robinson in the Great Seal Patent Office
on the 6th February 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
ROBINSON, of Castleton Lodge, Leeds, in the County of York, Gentleman,
send greeting.
2
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of August, in the year of 3
our Lord One thousand eight hundred and seventy-three, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Thomas Robinson, Her special license, that
I, the said Thomas Robinson, my executors, administrators, and assigns,

page_text: > "
or such others as I, the said Thomas Robinson, my executors, adminis-
trators, and assigns, should at any time agree with, and no others, from
time to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for “IMPROVEMENTS IN MACHINES FOR RAISING
WOOLLEN CLOTH COMMONLY CALLED "GIGS,' upon the condition (amongst
others) that I, the said Thomas Robinson, my executors or administrators,
by an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Thomas Robinson, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say :-
This Invention has for its object improvements in machines for
raising woollen cloth commonly called "gigs," and the purpose of these
improvements is mainly to enable the machine to turn off an increased
quantity of work with a saving of labor.
As these machines are commonly constructed the fabric is brought
once only into contact with the raising cylinder at each passage through
the machine.
By my improvements it is brought two or more times in contact with
the raising cylinder at each passage through the machine, and the
extent of the contact can be adjusted at pleasure so as to render the
action of the machine on the fabric more or less severe. There are
three or more cloth rollers arranged around the raising cylinder, and the
fabric to be raised is led to the raising cylinder around one of the cloth
rollers, and it passes between this roller and the raising cylinder, then
the fabric passes over the intermediate cloth roller or rollers, and after-
wards it passes under the last roller of the series between it and the
raising cylinder.

page_text: them, and consequently the extent of the contact of the cloth with the
raising cylinder. This adjustment is effected in such a manner that the
distances between the rollers although variable are always equal the
one to the other
them, and consequently the extent of the contact of the cloth with the
raising cylinder. This adjustment is effected in such a manner that the
distances between the rollers although variable are always equal the
one to the other
The flock is removed from the raising cylinder by a revolving brush
which itself is cleaned by a card roller, and the flock is doffed from this
roller into a receiving box.
In order that my said Invention may be more fully understood and
readily carried into effect, I will proceed to describe the Drawings here-
unto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 and Figure 2 show a gig arranged so that the cloth shall
come into contact in its passage over the cylinder for raising twice in
lieu of once, and to effect this I arrange the machine with two extra
carrying and drawing rollers a and b, the middle roller a being on a 1
fixed axis; and the rollers b and c are made so as to ascend and descend
partially round the cylinder by their axes being held in suitable bearings
at the top of the toothed racks d and e. These racks by being held in
slides are at liberty to be moved by the pinions f, and movement to
ascend or descend in the slides is communicated by the worms 9, 9, and
worm wheels h, h, which are keyed fast on the pinion shafts. When the
rollers b and c are made to descend from the centre roller a, the cloth
comes into contact with the raising cylinder and the raising action
commences, and as they continue to descend the raising becomes more
severe according to the will of the workman.
And in order to have the cloth at sufficient tension, whilst being
raised upon the surface of the raising cylinder, the carrying rollers a
and 6 are driven at a greater surface speed than the cloth is fed to the
machine, and so tighten it sufficiently to bear the action of raising.
In respect to the roller 6 there will be considerable slip of the belt
which drives it, and the surface of the roller a may also slip as it is
driven at a greater surface speed than the cloth is fed to the machine.
The course taken by the fabric is distinctly marked at many points
in its passage by numerous small arrows, and will be readily understood.
k is a circular brush, the width of the raising cylinder set in wood or
other suitable material; only the end view of the line of bristles is
]

page_text: shewn. This brush is driven at sufficient velocity to strip the raising
cylinder of flocks as they are made, and then to lay the flocks upon a
doffer; this doffer being a roller set round with card clothing which is
doffed in the usual way of carding engines by a doffing comb into a
doffing box. The brush is driven from a pulley on the cylinder shaft.
The movement. to the doffing comb and the doffer is obtained as shewn
by an ascending and descending motion given to the rod by a crank pin
in the wheel m. The worms 9 are fixed on a shaft at the end of which
is a handle by which the workman regulates the height or distance of
rollers 6 and c from the fixed roller a, and upon the distance given
depends the amount of raising action which the cloth receives as it
passes over the raising cylinder. The carrying rollers which feed the
machine and return the cloth to the scray are clearly indicated.
The moving scray as at present in use is shewn bearing the cloth, it
receives the cloth at one end and returns it to the gig at the other..
Some attempts have been made to return the cloth by a scray on the
top of the machine, and to dispense with the scray as shewn, but I
prefer the mode shewn as it enables the workman to examine the piece
better whilst it is being raised.
The rod n gives movement to the bell crank o, and a rod from the
bell crank gives motion to the scray in the usual way, and also to the
cuttling bars.
And what I deem new and never before used in this arrangement
is,-
Firstly. The application of two extra carrying rollers a and b for the
purpose of raising at two places on the same raising cylinder at the
same time.
And, Secondly. Driving these extra carrying rollers so that all the
slack of the piece shall be taken up and a proper tension given to the
cloth for the purpose of raising.
Thirdly. The application of a doffing brush and doffer to strip the
flocks from the teazles on the cylinder as they are made.
I now propose to describe a raising gig that shall raise at three places
on the same raising cylinder at the same time.

page_text: It will be seen on reference to Figure 3 and Figure 4 that the arrange-
ment to raise at three places at once is obtained by having four carrying
rollers to carry the cloth over the raising cylinder. These four rollers
are shewn to be moved on axes placed at the end of racks, and are
made to move towards and from each other simultaneously in pro- 5
portion to the gearing employed to move the racks in their slides.
The racks are moved simultaneously by pinions, and the pinions are
moved, as shewn in Figure 4, by worms and worm wheels placed upon
shafts; I prefer to make them so that the upper rollers shall move
partially round the cylinder half the distance of the lower rollers, and to 1
effect this I place two sets of racks on the front of the cylinder, and two
sets of racks at the back behind the cylinder.
It will be evident that when movement is given to the pinion shafts
by the worms and worm wheels (the pinions which work the upper
racks being one half of the size of those which work the lower racks), the 1
upper racks will move up and down (that is partially round the raising
cylinder) only half the distance of the lower rollers, I deem new and
never before used in this arrangement :—
1st. Raising cloth at three places instead of one upon one cylinder.
2nd. The brush and doffer for the flocks.
20
3rd. Moving the carrying rollers so as to take up the slack of the
piece as it passes through the machine.
What I claim is the construction of machines for raising woollen
cloth, substantially as described.