(57) In a supply set for drawing textile threads by means of friction, whereby said set
is composed of two like formally meshing gearwheels, said n teeth, which are shaped
with a profile that ensures that the pairs of meshing teeth form a V-shaped groove
that is open toward the circumferences of said wheels, have projections such that
the groove is able to hold within itself, tangentially to said projections, a textile
thread, drawing it by friction under the action of the rotation of the wheels, characterized
in that on said teeth (3) of each wheel are mounted or made projections (3c, 3d) that
extend axially at different predetermined heights (h1, h2) and are able to mate with
an equal number of recesses (4) made in the opposing wheel; said recesses have depths
(p1, p2) of 0 ≧ and are complementary to said heights, such that, by completing a
relative rotation between wheels (1, 1'), one or more axial distances are obtained
between the different wheels.
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