Year: 1886

page_text: Date of Application, 4th. Dec., 1886.
Specification Accepted, 4th Feb., 1887.
I, WILLIAM HARRISON of 128 Portland Street, Manchester in the county of Lancaster,
and 67 Oxford Street, London, Patentee and Manufacturer 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 :-
This invention relates to the method of raising and lowering a radial disc in a knitting
machine, with the object of facilitating the adjustment of the ribbing needles working
in the said radial disc, with the vertical cylinder needles, for the purpose of producing
plain and ribbed knitting.
In order more readily to describe the nature of said invention, I have annexed two
sheets of drawings, to which I hereinafter refer; in these drawings, similar letters
refer to similar parts, in the several views.
Fig. 1 represents part of a circular knitting machine, showing side view of head of
arm, radial disc, and vertical needle cylinder.
In the centre of vertical needle cylinder 6 of a knitting machine, I suspend a radial
disc c containing ribbing needles, by means of a spindle d attached at its lower end,
to the said radial disc, and at the upper or opposite end attached so as to slide vertically
in the head g of arm of machine. For the purpose of raising and lowering the said
radial disc and thus adjusting the needles, I form the upper end of the disc spindle d
with a flange d'. I place on the spindle d, a recessed or chambered collar e.
This chambered collar fits evenly in the head of arm of machine, in which it is free
to slide vertically and at the same time have a rotary motion. The flange d' at upper
end of disc spindle, rests on the chambered collar e, and the radial disc c is suspended there-
from. For raising or lowering the aforesaid chambered collar e, and thus adjusting
the ribbing needles, which work in the radial disc c, with the needles in vertical
cylinder, I actuate the said chambered collar e by means either of a worm, rack and
pinion screw, eccentric lever, or other suitable appliance. When a worm is used for
adjusting the chambered collar e, and consequently the radial disc e, I place a loose
rack in the recess e' of collar e, as represented in Fig. 1: the rack is retained in
position by projecting into groove or slot formed in head of arm of machine, but
permits the chambered or recessed collar e to revolve within the head of arm; a worm j
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page_text: secured to lugs n on head of arm, works into rack f which thus raises or lowers the
chambered collar e, and with it the spindle & and radial disc c.
Fig. 2. shows the rack fin recess of collar e with worm j removed, and Fig. 3. shows
chambered collar e. and rack f separately.
When a screw is used for adjusting the chambered collar e and consequently the
radial disc c I place a loose lug k in the recess e¹ of collar e as shown in Fig. 4 on
drawing. The lug K is retained in position by projecting into groove or slot formed
in head of arm of machine, but permits the chambered or recessed collar e to revolve
within the head of arm the same as when the rack fis used as described in Fig. 1.
A screw passes through lug n formed on head of arm, and is attached by a set pin
to loose lug in recess e¹ of collar e; the screw when revolved thus raises or lowers
the chambered collar e and with it the spindle d and radial disc c: the screw / may
have a reversed position to that shown on drawing if preferred.
Fig. 5 shows the chambered or recessed collar e raised or lowered by means of
a lever m fulcrumed at p, acting on stud q in recessed collar e, and projecting through
slot h. The stud is formed with a base to fit in the recess e¹ of collar e in the same
way as loose lug k.
q
Fig. 6 represents the chambered or recessed collar e raised by means of eccentric
swell on lever s acting on stud which fits in recess e¹ of collar e same as
lug hereinbefore described the spring t which is attached to loose study and also to
the fixed stud on head of arm causes the said collar e to return to its previous
position when released. This eccentric swell » may be formed with ratchet teeth on
edge to retain the levers in any position, or it may be retained in position by a set
screw in handle of lever to bear against the head of arm of machine.
When preferred, the chambered or recessed part e¹ may be formed on stud d, and
form part thereof.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is
In a cylinder knitting machine, the method of suspending the radial ribbing disc from
a recessed or chambered collar, on spindle of radial disc, in head of arm of machine,
for the purpose of adjusting the ribbing needles to the ordinary cylinder needles;
the said recessed or chambered collar being raised or lowered in the head of arm of
machine by means either of a worm, rack and pinion, screw, eccentric lever or other
suitable appliance, substantially in the manner herein before described.