Improvements in Straight Bar Rib Knitting Machines
Year: 1897

page_text: Date of Application, 20th July, 1897
Ce 201
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1000
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Dou
4000
PROVISIONAL SPECIFICATION.
Improvements in Straight Bar Rib Knitting Machines.
MOSES MELLOR & SONS LTD., Hosiery Machine Builders, JAMES HENRY
WOODWARD, Hosiery Machinist, and FREDERICK SHAW, Machinist, all of Lee
Works, Nottingham, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in straight bar rib knitting machines in
which the thread is indented upon the vertical needles.
The thread for both sets of needles after being indented upon the vertical needles,
is, by the vertical needles laid upon the horizontal needles. The horizontal needles
then complete the formation of their loops after which the vertical needles descend
further into the knock over bits for the completion of their loops, and to ensure
that every needle thoroughly discharges its loop from off the head of the needle,
it has hitherto been necessary for them to descend a considerable distance below
the upper edge of the knock-over bits, whereby undue strain is thrown upon the
loops and an inferior fabric produced.
Now the object of this invention is the provision of means whereby the vertical
needles are enabled to thoroughly discharge their loops without undue strain being
thrown upon the loops, and the arrangement of such means whereby the vertical
needles may be as readily thrown out of action as hitherto.
According to this invention, in addition to the usual parts, the knitting machine
is provided with a knock over bar or edge which rests upon, or, is near to the upper
edge of the knock over bits and forms a connecting piece between them. This
knock-over bar or edge prevents the work being drawn between the knock over
bits and enables the vertical needles to discharge their loops without undue strain.
The knock-over bar or edge may be fixed or movable but in either case it is so
carried that it can be readily removed from its working position to allow of the
vertical needle bar being thrown out of action..
Improvements in Straight Bar Rib Knitting Machines.
MOSES MELLOR & SONS LTD., Hosiery Machine Builders, JAMES HENRY
WOODWARD, Hosiery Machinist, and FREDERICK SHAW, Machinist, all of Lee
Works, Nottingham, do hereby declare the nature of this invention and in what
[Price 8d.1

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
-
This invention relates to improvements in stright bar rib knitting machines in
which the thread is indented on the vertical needles.
The thread required by both sets of needles for each course is indented upon the
vertical needles and by these needles is laid upon the horizontal needles which then
complete the formation of their loops. The vertical needles afterwards descend
further into the knocking over bits to complete the formation of their loops and
to ensure the discharge of the loops from off the needles. This further descent of
the vertical needles below the upper edge of the knocking-over bits has hitherto
being considerable, whereby undue strain has been thrown upon the loops and an
inferior fabric produced.
This invention has for its object the provision of ineans whereby the vertical
needles are enabled to thoroughly discharge their loops without an undue strain
being put upon the same, and the arrangement of such means whereby the vertical
needles may be thrown out of action as heretofore.
According to this invention a knock-over bar or edge is used to form a connect-
ing piece between the knock-over bits and prevent the work being drawn between
the knock-over bits with the needles. This knock-over bar or edge may be
mounted on pivotted arms so as to be readily removable to allow of the frame
needles being brought forward, and it may be arranged to rest on the knock-over
bits, be cut to receive the ends of the knock-over bits, or the knock-over bits may
be fixed thereto.
In the accompanying drawings which are referred to in the following detailed
description
Fig. 1 is a section of part of a machine showing the application of this
invention.
Fig. is a plan of a piece of the knock-over bar or edge and knock-over bits.
Figs. 3 and 4 are sections showing alternative arrangements of the knock-over
bar and bits.
Fig. 5 is a section showing an arrangement with the knock-over bits fixed to
the knock-over bar, and
Fig. 6 is a plan of a portion of the knock-over bar and bits shown in Fig. 5.
The vertical or frame needles a are carried by a bar 6 which is constructed
arranged and operated as in an ordinary machine, but the motion of the said bar
is so arranged that the needles do not descend below the upper edge of the knock-
over bits c so great a distance as in an ordinary machine. The horizontal or
machine needles d are arranged and operated as in an ordinary machine.
C
The knock-over bits c in Figs. 1, 2, 3 and 4 are attached to the lower sinker
bar e and by preference are of the shape shown in Fig. 1. The knock-over bar f
which is cut as shown in Fig. 2 to receive the ends of the bits is attached to arms g
which are loosely mounted on the slide shaft h or upon an independent shaft, or upon
axles as may be most convenient. At the front of the arms f there are joints k
to which handle links are pivotted, these links being cut at m to allow of them
being passed over axles o in brackets p attached to the front rail n. These parts
are so arranged that when in the position shown the bar f is held up to the knock-
over bits c, and when the link 7 is lifted off the pin o the bar f can be moved from
the knock over bits to allow of the frame needle bar 6 being moved forward in
the usual manner when the frame needles require attending to.
In Fig. 3 there is shown an arrangement of a knock-over bar applicable to
existing frames with the ordinary shaped knock-over bits. In the modification of
Fig. 3 shown in Fig. 4 the knock over bits are cut to allow the knock-over edge of
the bar f being placed level with the upper edge of the knock-over bits c.
In the arrangement shown in Figs. 5 and the knock-over bits c are fixed to
the knock-over bar f instead of being cast in leads and secured to the sinker bar e.
The knock-over bar f is fixed to the arms g and arranged in the manner described

page_text: with reference to the arrangement shown in Fig. 1. The knock-over bar f is cut
as shown in Fig. 6 and the knock-over bits fixed therein by solder, or by other
known means.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:
In a knitting machine of the kind herein referred to the application to, and the
combination therewith of a knock over bar or edge, level with or above the tops
of the knock over bits and so arranged that it can be moved to allow of the frame
needles being brought forward.
Dated this 10th day of April 1898.
W. H. POTTER,
Patent Agent, Nottingham.