IMPROVED APPARATUS APPLICABLE TO CIRCULAR MACHINES PRODUCING RIBBED LOOPED FABRICS
Year: 1884

page_text: COMPLETE SPECIFICATION.
I, SAMUEL JAMSON, in the employment of Messieurs Blackburn and Atten-
borough, of Atlas Works Kirke White Street, in the town and county of the town
of Nottingham, Hosiery Machinists do hereby declare the nature of my invention
for 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:-
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
two and one ribbed fabric with a one and one welt, 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 B₁ 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 previous to forming a welt. The incline cam B²
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 welting cain C shown in side view at Figure 7. Inside the welting
cam is a cam D, shown in side view at Figure 8, which operates a rocking lever D
on the same axle as the ordinary welting lever, the inner end of the lever D₁ raises
or lowers the frame needle loop bolt D³, 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 means, the welt
can he made stiffer or slacker as required.
As the needles carried by the bits B' cast off the thread to ensure the latches of
the frame needles being down ready to again receive the thread I employ an

page_text: opening point E capable of adjustinent in a bracket secured to the frame cover, on
the opposite side to the ordinary feeding guide, the point lowers the latches as the
needles pass onto 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 several 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 B³, 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 them
passing down and under a second knocking over bolt Al, the thread so passed off
being equally divided between the next adjacent frame needles and machine
needles, thus producing a one and one ribbed welt, on a two and one ribbed fabric,
automatically without the needle bits leaving their ordinary inclines.
Having now particularly described and ascertained, the nature of my invention,
and in what manner the same is to be performed, I declare that what I claim is :
The construction and employment of the cam B², lever B³, and cam B* for operating
the long needle bits B' for the purpose of producing a one and one ribbed welt, on
a two and one ribbed fabric substantially as described and illustrated in the
Drawings annexed.
Dated this man third 2-11001