IMPROVEMENTS IN KNITTING MACHINES
Year: 1882

page_text: PROVISIONAL SPECIFICATION left by the said James Poole at the Office
of the Commissioners of Patents on the 17th February 1882.
JAMES POOLE, of Bradford in the County of York, Overlooker IMPROVEMENTS
IN KNITTING MACHINES
The object of this invention is to knit looped fabrics in such a manner that the
same is firmer and will not stretch to such an extent as fabrics knit by machines as
ordinarily constructed.
:
I accomplish my object by mounting a carriage at the back of the machine in
front of the needles and warp guides and traversing the same on suitable slides
which extend across the machine. This carriage is actuated by a reciprocating
lever or by a reciprocating disc to the circumference of which is secured a belt or
cord in such manner that one end is attached to one side of the carriage and the
other to the opposite end by which means the carriage is traversed in the direction
according to which the reciprocating disc is moving.
The carriage is fitted with a yarn carrier through which the yarn passes and is
so arranged that when the carriage arrives at each end of the machine the yarn
carrier is actuated by an inclined plate which moves the carrier towards the warp
guides and needles laying the yarn between the needles and warp thread guides
which is retained in such position by rising and falling needles until such time
as the warp thread guides bring forward the warp threads and enclose the yarn
laid in by the carrier between the last formed series of loops and those about to be
formed which loops are knit in the same manner as before the cross yarn was
introduced

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, and of
an Order of the Lord Chancellor, filed by the said James Poole in the Great
Seal Patent Office on the 6th February 1883.
JAMES POOLE of Bradford in the County of York, Overlooker IMPROVEMENTS
IN KNITTING MACHINES
The object of this invention is to knit fabrics formed by means of looping the
warp, in such a manner that the same are firmer and will not stretch to such an
extent that fabrics knit by machines as ordinarily constructed will, and consists in
the arrangement of mechanical appliances by which a thread of yarn is alternately
passed across the fabric, first in one direction, then in the other, in such position
that the thread is embodied in the fabric by the looping together of the warp
threads, such looping being accomplished in the same manner as in a knitting
machine of ordinary construction.
The accompanying drawings represent such of the old portions of a straight bar
knitting machine as are required to make clear my invention which is added thereto,
the several parts of which are shewn in their respective positions.
Figure 1 represents the back elevation of a straight bar knitting machine.
Figure 2 is an end view of the same, part of the end frame being broken away.
Figure 3 is a detail of the traversing pullies which I use for obtaining an increased
traverse to the yarn carriage. Figure 4 is a plan of the same. Figure 5 is a side
elevation of the yarn carriage. Figure 6 is a plan of the same. Figure 7 is an
elevation of the apparatus I employ for passing the yarn to the position where it
is to be secured by the loops and Figure 8 is an end view of the same
The end frames A are held together by suitable cross bars, and motion to the
machine can be obtained by means of belts and pullies or by turning cranked
shaft B actuating the gearing B¹ and cam shaft C. To one of the wheels B³ I fix a
crank stud B' upon which is mounted one end of connecting rod D which is also
attached to end of lever D', the latter of which is secured to shaft E to which is
also secured another lever F which is made to oscillate by means of crank stud B².
Near the bottom end of this lever F is mounted rod F which is also attached to
the traversing pulley frame G which is made to slide to and fro on the stationary
bar G. Around the pullies G are passed two ropes H and H' which are respec-
tively fastened to the regulation bolts Jat each end of the machine and which also
pass round pullies G³ and are finally secured to the underside of yarn carriage K,
which therefore slides across the machine on bar L by means of the traversing
pullies G in combination with the ropes H and H¹: by this means the traverse
of the carriage K is double to that of the traversing pullies G³.
The bobbin containing the yarn to be laid across the machine is placed in any
convenient position, and the yarn is conducted through the holes shewn by the
dotted lines through each end of yarn carrier K¹ and is laid across the fabric as the
carriage travels from side to side of the machine. When the carriage K arrives at
either end of its traverse across the machine and before its return, the yarn just
laid across is retained and brought into the position for being secured in the fabric
by the looping together of the warp threads by means of the reciprocating bars M
and M', the latter of which having a compound motion carries the yarn from behind
the sley bits N laying it across the same in the following manner. Near to each
end of the cam shaft C, I secure cams P which are so arranged and constructed that
when the yarn carriage arrives at either end of the machine the reciprocating
bars Maud M' are elevated, the upper portion of the bar M' rising between the
cud of yarn carrier at K² and the bar L on which the carriage K slides at the same

page_text: time passing the yarn on to the sley bits N: this is effected by the projecting pin R
when the reciprocating bars are being raised: the pin R by passing over the convex
side of pawl S causes the reciprocating bar M¹ above the joint to travel in the
direction of the arrow at the same time that it is rising, thereby passing the yarn
on to the sley bits in position to be secured by the loops.
On the return or downward part of the stroke the bar M' moves in a straight
line, being drawn to the straight face of bracket U by means of spring S', the pin R
sliding down the straight part of the bracket and on the bottom part of the concave
side of the pawl, until below the bottom of the pawl S, which is then pressed to
the bracket by a spring arranged in any convenient manner to accomplish this, and
on the return stroke of bar M¹ the pin R travels on the convex side of pawl as
before described.
The warp is mounted on beam Y and the threads are passed through the holes
in guide bars and are looped together by the needles and sley bits as hitherto
with the addition of the thread which is embodied in the fabric between the
loops and by which the fabric is made firmer or less elastic in the width of the
piece.
What I claim as my invention is :—
The combination of the rod D the levers D' and F, the rod F*, the pullies G³, the
pullies G³, the ropes Hand H¹ and the rod L with the yarn carriage K substantially
for the purpose and in the manner as described and illustrated by the accompanying
drawings
The use of the apparatus for carrying the yarn from behind the sley bits and
laying it across the same substantially for the purpose and in the inanner as
described and as illustrated in the accompanying drawings
In Witness whereof I the said James Poole have hereunto set my hand
and seal this twenty-fifth day of January in the year of our Lord One
thousand eight hundred and eighty three.
JAMES POOLE (L.s.)
JAMES POOLE (L.s.)