IMPROVED APPARATUS APPLICABLE TO CIRCULAR MACHINES, PRODUCING RIBBED LOOPED FABRICS to be as follows:
Year: 1884

page_text: I, SAMUEL JAMSON, in the employment of Messieurs Blackburn and Attonborough,
of Atlas Works, Kirke White Street, in the town and county of the town of
Nottingham, Hosiery Machinists, do hereby declare the nature of the said invention
for "IMPROVED APPARATUS APPLICABLE TO CIRCULAR MACHINES, PRODUCING RIBBED
LOOPED FABRICS to be as follows:-
"
To a circular machine for making ribbed looped fabrics, below the frame needle
cover plate flange, I place a rocking lever capable of being actuated by the attendant,
the inner end of this lever raises or depresses an incline bit, when in a raised position,
the whole of the frame needles are actuated by the inclines, but when the incline
bit is depressed, the needles carried by needle bits with short nebs are lowered so
as to pass under the throad guide, while the needles carried by needlo bits with
long nebs receive the thread in the usual way, the needle bits with short nebs, are
of greater length below the nobs than the others, the lower end of the long bits are
operated by inclines, so as to throw the needles up to press off their loops, the latter
inclines are raised or lowered by a rocking lever, the outer end of which is actuated
by a cam, carried by a ratchet wheel, racked one or more teeth at each revolution
of the frame head by an adjustable driver, carried by a rocking lever actuated by a
cam secured on the head, above the bevelled driving wheel. To the top of the
ratchet wheel is the usual cam, which actuates the welting lever, inside which is a
second cam, which operates a rocking lever, tho inner end of which raises the
frame loop bolt, and allows the needles carried by the short uebbed bits to secure
the thread between the next adjacent needles. The machine head being of the
usual construction, I am thus enabled to produce a one and one ribbed top, above a
two and one, or other numbered rib, without transferring the fabric from one
machine to another.

page_text: "IMPROVED APPARATUS APPLICABLE TO CIRCULAR MACHINES, PRODUCING RIBBED
LOOPED FABRICS, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:―
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a plan of a circular rib machine with my improved apparatus
applied thereto.
Figure 2, a front view of the same and Figures 3 to 10 portions of the machine
and apparatus shown separately and severally referred to hereafter.
The drawings show a circular machine with the needles arranged to produce a
one and one, and a two and one, ribbed fabric, in which I employ machine needles
and needle bits A which are shown in side view at Figure 2, and frame needles in
needle bits B and B¹ Figure 3, the bits B' being somewhat longer than the bits B,
the long bits are operated by an incline cam B³, (a front view of which is shown
separately at Figure 4, and in plan at Figure 5) so as to throw their needles up to
cast off their loops. The inclino cam B³ is raised or lowered by a lever B³ rocking
on an axle secured to the frame head plate, the lever is actuated by a cam B', an
underside view of which is shown at Figure 6 secured to the underside of the
ratchet wheel which carries on its top side the ordinary wolting cam C, shown in
sido view at Figure 7. Inside the welting cam is a cam D shown in side view at
Figure 8, which operates a rocking lever D¹ on the same axlo as the ordinary welting
lover, the inner end of the lever D¹ raises or lowers the frame needle loop bolt Ds
shown separately in side view at Figure 9 and in plan at Figure 10, the lowest
portion of the cam D is hinged to the remainder of the circle and made capable of
adjustment by means of a screw D³ passed through the ratchet wheel of the welting
cam, by which either the one and one rib or the two and one rib fabric can be
adjusted independently to produce stiffer or slacker work. When changing from a
one and one ribbed fabric to a two and one ribbed fabric, to ensure the latches of
the frame needles being down ready to again receive the thread, I employ an opening
point E capable of adjustment in a bracket secured to the frame cover, on the
opposite side to the ordinary feeding guide, the point lowers the latches as tho
needles pass on to it, and slide up past it.
The revolution of the welting cam ratchet wheel, is effected by a driver in the
ordinary way which is thrown into or out of gear, by a studded chain of the usual
construction. Having described the soveral separate parts of my improved apparatus,
I will describe their movements when working in combination. Suppose the machine
is making a two and one ribbed fabric previous to making the welt, the ratchet
wheel commences to revolve, causing its cam B' to operate the incline cam Bª,
which throws up the long needle bits B₁ to place the thread below the latches, the
thread passing off those needles as the bits are lowered by the passing down and
under a second knocking over bolt A¹, the thread so passed off being equally divided
between the next adjacent fraine needles, and machine needles, thus producing a one
and one ribbed fabric, and a two and one ribbed fabric automatically, without the
needle bits leaving their ordinary inclines.

page_text: Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declaro that what
I claim is,
"
The construction and employment of the cam B³, lever B³ and cam B' for
operating the long needle bits B¹ for the purpose set forth, substantially as
described and illustrated in the Drawings annexed.