Improvements in Gig-machines, or Napping Machines, employed in the Manufacture of Woollen or other Fabrics.
Year: 1898

page_text: Date of Application, 8th Aug., 1898-Accepted, 10th Sept., 1898
Improvements in Gig-machines, or Napping Machines, employed in
the Manufacture of Woollen or other Fabrics.
A communication to me from C. A. ROSCHER, of Alt-Gersdorf, in the Kingdom of
Saxony, Germany, Manufacturer of Looms.
I, EDMUND EDWARDS, of the Firm of Edwards and Co., Patent Agents and Engineers,
of 65 and 66, Chancery Lane, in the County of Middlesex, 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 and
accompanying drawing, that is to say :-
The object of the present invention is a gig-machine, or napping machine, the
brush mounted cylinders of which are automatically caused to make a to and fro
motion in a radial direction as long as the machine is working.
This movement may be either an exactly radial one, in order to vary the degree of
engagement between the brush-like surface of the cylinders and the woven material on
which they act, or the movement may be effected in both a radial and a tangential
direction at the same time, so as to vary at the same time the degree of engagement
and the circumferential velocity of the brush mounted cylinders. In both cases an
improved action of the machine is attained.
In the accompanying drawing, which is in illustration of the invention, Figure 1
is a partial front-back view, shewing a gig-machine, the brush mounted cylinders
of which are moved automatically in an exactly radial direction.
An
The bearings a of the axle b of each brush mounted cylinder c are carried in a
radial slot d on the main cylinder e. Each bearing coupled by means of a bolt f
with a connecting rod g and each pair of connecting rods is coupled by means of
a bolt h with a disc k which can turn on the axis i of the main cylinder e.
oscillating movement therefore of the disc k on the axis i will cause an alternating to
and fro motion in a radial direction of each pair of brush mounted cylinders c. This
oscillating movement is produced by means of an excentric 1, the axis m of which
is supported by the main cylinder whilst the excentric strap n is coupled by means
of a bolt o to the bracket p fixed to the disc k. The excentric is caused to turn
upon the axis m by means of a toothed wheel r which is fixed to it and gears with the
fixed internally toothed wheel q.
As will be seen from Figure 2, instead of the radial slots d curved slots may be
made use of. Or straight slots d², Figure 3 may be used, which are arranged
obliquely with reference to the radius. Instead of arranging the slots d¹ curved in
the same direction, as shewn by Figure 2 the slots d¹ of each pair of bearings a may
form a wedge-shaped figure, as shewn in Figure 4. The straight slots 2 of the
form of construction shewn by Figure 3 can also be arranged in this manner.
In a modified form of arrangement, as illustrated in Figure 5, each pair of brush
mounted cylinders c, c, may be supported by a -shaped rocking lever G which
lever is carried by the main cylinder e by means of a pivot E. The rocking move-
ment is effected by means of the above-mentioned disc k operated in the way already

page_text: described but in this case a pivot K on the disc k works in a slot G¹ at the inner end
of the rocking lever G.
Finally the pivot m of the excentric may be supported by means of an arm 8,
Figure 2, fixed in the axle i of the main cylinder e, instead of being carried by this
main cylinder e itself.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
:-
1. A gig machine or napping machine, the brush mounted cylinders c of which make
a to and fro movement in a radial direction while the machine is working,
substantially as and for the purpose set forth, and illustrated in Figure of the
accompanying drawing.
2. A gig machine, the brush mounted cylinders of which make a to and fro move-
ment in a radial and in a tangential direction at the same time, substantially as and
for the purpose set forth, and illustrated in Figures 2, 3, 4, and 5 of the accompany-
ing drawing.
Dated this on day of August 1.
EDWARDS AND CO.,
Agents for the Applicant, 65 and 66, Chancery Lane, London.