Year: 1887

page_text: Date of Application, 30th Sept., 1887**
Complete Left, 25th June, 1888
Complete Accepted; 27th July, 1888
I, CHARLES HENRY ALDRIDGE, of Pinfold Gate, Loughborough, Hosiery, Machinist,
do hereby declare the nature of this invention to be as follows:-
The invention relates to flat or rotary knitting machines more especially to those of
the type known as Cotton's knitting machines.
In machines of this type as heretofore constructed the jack combs have commonly
been fixed to the back or under side of the sinker bar-but with this construction
great care is required in the fixing of the combs to ensure that the wire which passes
through the several plates of the comb and on which the jacks turn shall be set
exactly parallel with the line of travel of the slur cock and so consequently to ensure
that the slur cock shall act uniformly on both ends of each series of jacks used with
each section of needles in the frame to give a uniform movement to all the sinkers and
form loops of uniform length between all the needles. I remedy this by fixing the
several leads or sections of the jack combs used with each section of the needles to
an additional bar placed against the underside of the sinker bar and held up to it by
screw bolts one near each end. The bolt at one end I make to serve as a fulcrum for
the additional bar to turn on and the bolt at the other end to pass through an oblong
slot in the bar so that this end of the bar may have a slight endway movement given
to it to shift it towards or from the front edge of the sinker bar-in addition I
provide an adjusting screw by which this movement may be given to the additional
bar and by which the additional bar may be locked and retained in any position into
which it may be moved. In this way each section or length of the jack comb can
readily be set into a position in which the wire on which the jacks turn is parallel
with the line of travel of the slur cock and perfect uniformity in the length of loops
can readily be obtained.
Also in machines of the "Cotton" type as heretofore-made the sinker bar rail has
been formed of stout angle iron and the sinker bar and jack comb bar have been
secured to an upwardly inclining side of this bar which prevented these hars being
unfixed and removed from the front of the machine. Consequently with this con-
struction of machine if any of the jacks become injured the comb carrying them
cannot be removed without first taking away the upper parts of the machine which
•
87

page_text: are above it to allow of the comb being lifted upwards and some hours work were
necessarily entailed if a jack had to be removed and replaced by another one.
To remedy this I form the sinker bar rail as a plain bar instead of angle iron form
and I secure each sinker bar at its ends to the top of angle iron supports which aro
bolted to this bar-Consequently any length of sinker bar can be removed by
removing the screw bolts which hold it to the angle iron supports or by removing
the bolts which hold these supports to the sinker bar rail and then drawing the sinker
bar forwards which can be readily done as the sinker bar rail when made flat as
above mentioned offers no impediment to the sinker bars being removed from the
front.
Date : 201L 1

page_text: I CHARLES HENRY ALDRIDGE of Pinfold Gate Loughborough Hosiery Machinist
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:-
The invention relates to flat or rotary knitting machines more especially to those of
the type known as Cotton's knitting machines.
In machines of this type as heretofore constructed the jack combs have commonly
been fixed to the back or underside of the sinker bar-but with this construction
great care is required in the fixing of the combs to ensure that the wire which passes
through the several plates of the comb and on which the jacks turn shall be set
exactly parallel with the line of travel of the slur cock and so consequently to ensure
that the slur cock shall act uniformly on both ends of each series of jacks used with
each section of needles in the frame to give a uniform movement to all the sinkers
and form loops of uniform length between all the needles. I remedy this by fixing
the several leads or sections of the jack combs used with each section of the needles
to an additional bar placed against the underside of the sinker bar and held up to it
by screw bolts one near each end. The bolt at one end I make to serve as a fulcrum
for the additional bar to turn on and the bolt at the other end to pass through an
oblong slot in the bar so that this end of the bar may have a slight movement given
to it to shift it towards or from the front edge of the sinker bar-in addition provide
an adjusting screw by which this movement may be given to the additional bar and
by which the additional bar may be locked and retained in any position into which
it may be moved. In this way each section or length of the jack comb can readily be
set into a position in which the wire on which the jacks turn is parallel with the line
of travel of the slur cock and perfect uniformity in the length of loops can readily be
obtained.
Also in machines of the "Cotton" type as heretofore made the sinker bar rail has
been formed of stout angle iron and the sinker bar and jack comb bar have been
secured to an upwardly inclining side of this rail which prevented these bars being
unfixed and removed from the front of the machine. Consequently with this construc-
tion of machine if any of the jacks become injured the comb carrying them cannot
be removed without first taking away the upper parts of the machine which are above
it to allow of the comb being lifted upwards and some hours work were necessarily
entailed if a jack had to be removed and replaced by another one.
To remedy this form the sinker bar rail as a plain bar instead of angle iron form
and I secure each sinker bar at its ends to the top of angle iron supports which are
bolted to this rail. Consequently any length of sinker bar can be removed by
removing the screw bolts which hold it to the angle iron supports or by removing the
bolts which hold these supports to the sinker bar rail and then drawing the sinker bar
forwards which can be readily done as the sinker bar rail when made flat as above
mentioned offers no impediment to the sinker bars being removed from the front.
In order that my said invention may be fully understood and readily carried into
effect. I will proceed to describe the drawings hereunto annexed.

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 is a front elevation (with part removed) of the sinker bar, jack comb and
some other parts belonging to a section of the machine. Figure 2 is a section taken
on the line 2, 2, in Figure 1. Figure 3 shows a modification. In Figures 1 and 2
a a is the sinker bar rail running along the machine from section to section. b bare
angle iron supports bolted upon the sinker bar rail. c is the sinker bar it is fixed by
screws d d to the top of the supports bb. ee are the tricks or grooves in which the
sinkers slide. f is the comb in which the jacks are held. ¹ is a wire on which the
jacks are threaded and which serves as an axis about which the jacks turn when
the slur cock runs along pressing on each jack in succession and causing it to thrust
its sinker forward. g is the additional bar to which the jack comb is fixed.
At one
end of this bar a hole is formed in it to fit upon the stud c¹ screwed into the
sinker bare The smaller screw.c² keeps the bar g in place upon the stud c¹. The
bar g can therefore turn about the stud c-At its other end an oblong hole g¹ is
formed in the bar and this receives a stud c³ screwed into the bar c.
his an
adjusting screw passing through the stud e³, it abuts at its inner end at one extremity
of the oblong hole g and the other end of the screw abuts upon a cover plate g
screwed upon the bar beyond the head of the screw. There is a hole in the cover
plate to admit of the screw being turned and by turning it the position of the
additional bar and the comb which it carries can be adjusted. i are the knocking
over bits, the leads in which they are held are fixed to the sinker bar. When the
bolts which connect the supports with the sinker bar rail a are removed the
section of the jack comb and other parts shown can be drawn forward and removed
without interfering with any other part of the machine. Or after removing the
screws d d the same parts (but without the supports b) may be drawn forward and
removed for convenient inspection and repair.
g
It is not essential to the removal of the supports bb from the front that the sinker
bar rail should be flat. Figure 3 shows a convenient form, here the sinker bar rail
has a flange projecting up behind the supports and these are bolted to this flange.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is
1. My improvement in knitting machines of the type known as
"Cotton's knitting
machines" consisting in mounting the jack combs in each section of the machine
on an additional bar and attaching this bar adjustably to the sinker bar substantially
as described.
«
2. My improvements in knitting machines of the type known as Cotton's knitting
machines" consisting in mounting the sections of the sinker bar on supports bolted
upon the sinker bar rail and capable of being detached and drawn forward to remove
the jack comb and the sinkers of the section without interfering with the parts of the
machine immediately over the sinkers.
3. My improvement in knitting machines of the type known as." Cotton's knitting
machines" consisting in mounting the sections of the sinker bar on supports from
which they are capable of being detached and drawn forward to remove the jack
comb and sinkers of the section without interfering with other parts of the machine.
4. My improvements-in knitting machines.substantially as described.
11:
T1000