Improvements in or relating to Knitting Frames.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Knitting Frames.
We, WILLIAM SPIERS and THOMAS SCOTT GRIEVE, Queen Street, Leicester,
Engineers, do hereby declare the nature of this invention to be as follows:-
This invention has reference to knitting frames of the straight bar type and
embodies an improved construction of thread carrier adapted to automatically
adjust or move itself free of or above any obstacles or irregularities of surface
in the track over which it passes, so that frictional or sudden contact between
the nose of the thread carrier and the adjacent part of the knitting frame is
avoided and the continued free working of the carrier is obtained.
"
Cotton's" type in which a series of
In straight bar knitting frames of the
carriers are employed one or more of the series frequently has its lower end
below the others, the result being that it grinds away the brasses and cuts into
the sinkers therein, in its to and fro motion in contact therewith.
this invention is designed to
A thread carrier constructed according to
obviate this disadvantage and is formed in preferably two parts jointed or hinged
together and preferably controlled by a spring so that in the event of the nose
of the thread carrier, during its to and fro motion across the frame to lay the
thread, coming into contact with any irregularity of the surface the resistance
offered by such contact would be sufficient to move the carrier on its hinge or
pivot above such irregularity so as to be clear of it in future movements and
the spring would prevent a too free movement of the carrier so that it would
not only be held in the raised position but would be prevented moving too
unnecessarily high for working purposes or dropping again on to the low level
in which the irregular surface resides.
By the employment of a weaker or more sensitive spring, the nose of the
thread carrier would be sufficiently flexible to move aside or ride over the
obstacle (as in the case of a displaced sinker) and return to its original and
normal position after having passed the same.
1000
BOULT, WADE & KILBURN,
Agents for the Applicants.
Improvements in or relating to Knitting Frames.
We, WILLIAM SPIERS and THOMAS SCOTT GRIEVE, Queen Street, Leicester,
Engineers, do hereby declare the nature of this invention and in what manner
Duins R17

page_text: the same is to be performed to be particularly described and ascertained in
and by the following statement:-
This invention has reference to knitting frames of the straight bar type and
embodies an improved construction of thread carrier adapted to automatically
adjust or move itself free of or above any obstacles or irregularities of surface
in the track over which it passes, so that frictional or sudden contact between
the nose of the thread carrier and the adjacent parts of the knitting frame is
avoided and the continued free working of the carrier is insured.
"
In straight bar knitting frames of the Cotton's type, in which a series of
carriers is employed one or more of the series frequently has its lower end
below the others, the result being that it grinds away the brasses and cuts into
the sinkers therein, in its to and fro motion in contact therewith.
A thread carrier constructed according to this invention is mainly designed to
obviate this disadvantage and is formed in preferably two parts jointed or hinged
together and preferably controlled by a spring so that in the event of the nose
of the thread carrier, during its to and fro motion across the frame to lay the
thread, coming into contact with any irregularity of surface the resistance
offered by such contact would be sufficient to move the carrier on its hinge or
pivot free of such irregularity, or so as to be clear of it in future movements,
and the spring would control such movement of the carrier so that it would not
only be held in the raised position but would be prevented moving too unneces-
sarily high for working purposes or dropping again on to the low level in which
the irregular surface resides.
By the employment of a weaker or more sensitive spring, the nose of the
thread carrier would be rendered sufficiently flexible to move aside or ride over the
obstacle (as in the case of a displaced sinker) and return to its original and
normal position after having passed the same.
Referring to the accompanying drawing:
Figures 1 and 2 are elevations in different positions, and
Figure 3 a perspective view of a thread carrier constructed in accordance
with one form of this invention.
Figure 4 represents an alternative construction.
The thread carrier shown in the annexed drawing is of the type used in con-
nection with Cotton's "
knitting frame and is formed in two parts A and B,
hinged, jointed, pivotted, or otherwise movably connected as at C so that the
nose B through which the yarn passes to the needles, and which moves in close
proximity to the latter, as will be well understood, may, upon colliding with any
irregularity of surface or obstacle in its path be able to shift its position in
regard thereto under the influence of a spring D and thus obviate the disad-
vantages herein before referred to.
The spring 1 is preferably in the form of a flat plate fixed at one end to
the part A by a screw E while the opposite end of the said spring bears elasti-
cally or with yielding pressure upon the pivotal end of the part B so that the
latter is sufficiently free to move on its pivot as the result of meeting with or
riding over anything in its track.
4
Although the part B of the carrier is shown in Figures 1 and 2 respectively
at the two extremes of its movement, to indicate to what extent it could alter
its position if occasion should arise, yet in actual practice it is not expected
that anything more than a very slight movement, such as shown by the dotted
lines in Figure 1 will be required to keep the nose B¹ clear of the surface over 5
which it travels.
In the construction illustrated in Figures 1, 2, and 3 the pivotal end of B
is formed with a flat or plane surface F, as shown by the dotted line in Figure 3.
upon which the spring D normally bears and is slightly bevelled at the front
part Fl
According to this construction the part B when its nose B¹ meets any obstacle
5

page_text: or irregular surface, as herein before referred to, will move above it as-indicated
by the dotted line in Figure 1, but after having passed over it will return to its
normal position in close proximity to the needles.
In the construction indicated in Figure 4 the pivotal end of B is of circular
section, as shown, and as the spring D bears upon this it is obvious that each
time the part B of the carrier moves as the result of colliding with anything
in its path it will be retained, by the spring D pressing thereon, in the posi-
tion in which it is so moved and consequently clear of obstructions in its path.
A thread carrier constructed as hereinbefore described is also considerably
easier to thread, as when it is shifted into the position indicated in Figure 2
the yarn can be readily passed through the nose B₁ of the same.
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:-
:-
1. A thread carrier for knitting frames constructed and arranged in such a
manner as to automatically adjust itself relatively to any obstacle or irregu-
larity of surface in the path in which it travels for the purpose described.
2. A thread carrier for knitting frames constructed and arranged in such a
manner that its operative end upon coming into contact with any obstacle or
irregularity of surface in its path will be moved thereby free of the same and
subsequently resume its normal position, for the purpose described.
3. A thread carrier for knitting frames constructed and arranged in such a
manner as to be raised above any irregularity of surface or obstacle in its path
upon contact therewith and to be maintained in such position for the purpose
described.
4. A thread carrier for knitting frames constructed in two parts and spring
governed, so as to admit of being moved by any obstacle or irregularity of sur-
face, in its path free of the same for the purpose described.
5. A thread carrier for knitting frames constructed in two sections pivotally
connected, a spring connected to one of such sections and bearing with yielding
pressure upon the other section, substantially as and for the purpose described.
6. The improved thread carrier for knitting frames, consisting of the parts
constructed, arranged and operating substantially in the manner and for the
purpose described and illustrated in the accompanying drawing.
Dated this 14th day of July 1900.
-
BOULT, WADE & KILBURN,
Agents for the Applicants.